TAT8858A1H
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TAT8858A1H CATV Infrastructure Push-Pull Amplifier Applications • • • • CATV Line Amplifiers CATV System Amplifiers Distribution Nodes Green Applications SOIC-16 Wide Package Product Features Functional Block Diagram 75 Ω, 50-1000 MHz Bandwidth GaAs pHEMT & MESFET Technology User configurable gain: 27 – 34 dB Integrated linearization Choice of output device to optimize cost/performance • Flexible bias voltage and current for optimum efficiency • SOIC-16 Wide Package • • • • • Pin 1 Reference Mark Out 1A 1 16 Bias 2A Lin Adj A 2 15 In 2A In 1A 3 14 Out 2A Bias 1A 4 13 Gate A Bias 1B 5 12 Gate B In 1B 6 11 Out 2B Lin Adj B 7 10 In 2B Out 1B 8 9 Bias 2B Backside Paddle - RF/DC GND General Description Pin Configuration The TAT8858A1H is a cost effective 75 Ω RFIC Amplifier designed for use in high gain 24 V or 12 V CATV applications up to 1000 MHz. It works with readily available SMT baluns and transformers to provide a highly flexible low cost replacement for traditional hybrids. Pin No. Label Pin No. Label 1 OUT 1A 10 IN 2B 2 LIN ADJ A 11 OUT 2B 3 IN 1A 12 GATE B 4 BIAS 1A 13 GATE A 5 BIAS 1B 14 OUT 2A 6 IN 1B 15 IN 2A 7 LIN ADJ B 16 BIAS 2A 8 OUT 1B The TAT8858A1H provides integrated linearization to improve the 3rd order distortion performance. 9 BIAS 2B Backside RF/DC GND Paddle The TAT8858A1H may be protected against ESD and transient surges with the TQP200002 and an output filter network. Consult TriQuint for discussion. Ordering Information Gain of the TAT8858A1H may be easily adjusted by varying external components, allowing for a family of push-pull hybrid solutions to be developed from a single RFIC. The TAT8858A1H supports traditional 24 V and 12 V supply voltages. Bias current may be adjusted to suit particular requirements with standard or active biasing approaches. Consult TriQuint for further discussion. Data Sheet: Rev C 10/21/13 © 2013 TriQuint Part No. TAT8858A1H TAT8858A1H-PCB 24V TAT8858A1H-PCB 12V Description RFIC 50-1000 MHz Eval Board 50-1000 MHz Eval Board Standard T/R size = 1000 pieces on a 7" reel - 1 of 25 - Disclaimer: Subject to change without notice www.triquint.com TAT8858A1H CATV Infrastructure Push-Pull Amplifier Absolute Maximum Ratings Recommended Operating Conditions Parameter Parameter Rating Storage Temperature −65 to 150°C Operation of this device outside the parameter ranges given above may cause permanent damage. Supply Voltage (VCC) ICC TCASE 6 TJ (for >10 hours MTTF) Min Typ 24 270 −20 Max Units +120 +150 V mA °C °C Electrical performance is measured and guaranteed under conditions noted in the electrical specifications table. Specifications are not guaranteed over all recommended operating conditions. Electrical Specifications Test conditions unless otherwise noted: VCC =+24V, Temp= +25°C, 75 Ω system. Parameter Operational Frequency Range Gain Input Return Loss Output Return Loss Gain Input Return Loss Output Return Loss Output P1dB Output IP3 (1) Composite Triple Beat (1) Composite Second Order (1) Composite Intermodulation Noise (1) XMOD Noise Figure Vbias (2) IDD Thermal Resistance, θjc Conditions Min 50 50-1000 MHz 50-1200 MHz f=500 MHz f1=225 MHz, f2=325 MHz, Pout= +11 dBm/tone 50-1000 MHz Module (junction to case) Typ Max 1000 Units 32 18 16 31 14 14 28 MHz dB dB dB dB dB dB dBm 44 dBm -69 -68 -70 -61 3.0 24 270 4.0 dBc dBc dB dBc dB V mA °C/W Notes: 1. 79ch. NTSC + QAM (-6dB offset) to 1003.25 MHz flat input, 43dBmV/ch Vout at channel 2. 2. Active biasing in easily implemented with traditional dual-pnp approaches. Biasing at 12 V is also possible. Data Sheet: Rev C 10/21/13 © 2013 TriQuint - 2 of 25 - Disclaimer: Subject to change without notice www.triquint.com TAT8858A1H CATV Infrastructure Push-Pull Amplifier TAT8858A1H-PCB 24V Schematic J1 L20 +24V Vbias GND R7 C25 C24 R18 C9 L9 Vgate C7 C13 Ra L5 R1 R19 C11 R9 C15 R20 L11 R3 R5 C3 C31 R30 J1 RF Input 4 2 1 3 L7 L8 C4 16 2 15 3 14 4 13 U1 C30 R6 L17 R11 2 11 7 10 8 9 3 R12 L18 C2 L30 RF Output Vbias 4 C22 R14 L14 C12 R10 1 T2 Vgate 12 6 R4 R13 L13 L19 TAT8857F3 5 R31 Cin 1 L12 C16 R21 R2 Rb L6 C8 C14 C10 L10 R8 R9 L13 L17 L19 T2 C22 C12 R10 C16 R21 R19 R18 C25 R6 L12 L10 C10 C8 R2 C2 L14 L6 C4 R12 L30 L18 C30 R11 U1 R14 L8 R13 R3 R31 R4 R30 R8 T1 L7 R20 C15 C3 C31 C13 Ra C11 R5 Rb C7 L11 L9 R1 L5 C9 R7 TAT8858A1H-PCB 24V Evaluation Board Layout C14 C24 L20 Data Sheet: Rev C 10/21/13 © 2013 TriQuint - 3 of 25 - Disclaimer: Subject to change without notice www.triquint.com TAT8858A1H CATV Infrastructure Push-Pull Amplifier Bill of Material – TAT8858A1H-PCB 24V Reference Des. Description Manuf. n/a n/a Printed Circuit Board TriQuint U1 n/a SOIC16W IC TriQuint TAT8858 T1 n/a TX Line Transformer, 3rd winding, 1:1 Macom MABA-008483-CT1760 Macom MABA-007681-CT2010 T2 Value n/a TX Line Transformer, Special, 2:1 Mini-Circuits C30, C31 2.2 pF CAP 0402, ± 0.1pF, 50V, NPO/COG TDK C15, C16 4.7pF CAP 0402, ± 0.1pF, 50V, NPO/COG Murata Part Number TRS2-1T-1+ C1005C0G1H2R2B GRM1555C1H4R7BZ01D C3, C4, C7, C8, C11, C12, C22 0.01 uF CAP 0402, 10%, 50V, X7R various C13, C14 330 pF CAP 0402, 10%, 50V, X7R Panasonic C9, C10, C2 470 pF CAP 0402, 5%, 50V, NPO/COG TDK CGA2B2C0G1H471J C24, C25 0.01 uF CAP 0603, 10%, 50V, X7R AVX 06035C103KAT2A Cin 0.2 pF CAP 0402, ± 0.05pF, 25V AVX 04023J0R2ABWTR L11, L12 470 nH IND 0402, 5% CoilCraft 0402AF-471XJLU L9, L10 12 nH IND 0402, 5% CoilCraft 0402CS-12NXJLW L5, L6 16 nH IND 0402, 5% CoilCraft 0402CS-18NXJLW L30 1.0 nH IND 0402, 5% CoilCraft 0402CS-1N0XJLW L17, L18 2.2 nH IND 0402, 5% CoilCraft 0402CS-2N2XJLW L20 900 nH IND 1008, 10% CoilCraft 1008AF-901XKLC L13, L14 43 nH IND 0402, 5% CoilCraft 0402CS-43NXJLW L7, L8, L19 600 Ω RES 0402, 300mA bead Murata BLM15AG601SN1 R7, R8 36.0 Ω RES 0402, 1%, 50V, 1/10W various R1, R2 20.0 kΩ RES 0402, 1%, 50V, 1/10W various R3, R4 360 Ω RES 0402, 1%, 50V, 1/10W various R18 2.70 kΩ RES 0603, 1%, 75V, 1/10W various R19 2.00 kΩ RES 0603, 1%, 75V, 1/10W various R5 8.06 kΩ RES 0402, 1%, 50V, 1/10W various R6 18.2 kΩ RES 0402, 1%, 50V, 1/10W various 200 Ω RES 0402, 1%, 50V, 1/16W various Ra, Rb 15.0 Ω RES 0402, 1%, 50V, 1/10W various R13, R14 2.40 kΩ RES 0402, 1%, 50V, 1/10W various R11, R12 33.0 Ω RES 0402, 1%, 50V, 1/16W various R20, R21 24.0 Ω RES 0402, 1%, 50V, 1/16W various R30, R31 12.0 Ω RES 1206, 1%, 200V, 1/4W various R9, R10 Data Sheet: Rev C 10/21/13 © 2013 TriQuint - 4 of 25 - ECJ-0EB1H331K Disclaimer: Subject to change without notice www.triquint.com TAT8858A1H CATV Infrastructure Push-Pull Amplifier Performance Plots – TAT8858A1H-PCB 24V Test conditions unless otherwise noted: VCC=+24 V, IDD = 270 mA, TCASE = +25°C, 75 Ω system +85°C -10 +25°C −20°C 33 31 29 -20 -25 -30 -40 600 800 Frequency (MHz) 1000 1200 P1dB vs. Frequency 200 400 600 800 Frequency (MHz) 1000 -35 1200 Noise Figure vs. Frequency 5 −20°C 26 24 3 2 200 400 600 800 Frequency (MHz) 1000 1200 CTB vs. Frequency -60 -70 -70 CSO (dBc) -65 +85°C -75 +25°C −20°C -80 -85 -90 200 300 Data Sheet: Rev C 10/21/13 © 2013 TriQuint 400 Frequency (MHz) 500 600 400 600 800 Frequency (MHz) 1000 1000 1200 CIN vs. Frequency +85°C +25°C −20°C 70 55 1200 CSO vs. Frequency 0 100 200 300 400 Frequency (MHz) 500 600 500 600 XMOD vs. Frequency -50 -55 +85°C -60 +25°C −20°C -80 -90 100 200 -75 -85 0 0 -60 -65 800 60 XMOD (dBc) 0 0 600 Frequency (MHz) 65 1 22 400 75 CIN (dB) NF (dB) −20°C 200 80 +25°C +25°C 0 85 +85°C 4 +85°C 28 20 0 −20°C -20 25 400 +25°C -15 -25 30 P1dB (dBm) −20°C -35 200 +85°C -10 27 32 CTB (dBc) -5 +25°C -30 0 Output Return Loss vs. Frequency 0 +85°C -15 |S11| (dB) Gain (dB) 35 Input Return Loss vs. Frequency -5 |S22| (dB) Gain vs. Frequency 37 -65 +85°C -70 +25°C −20°C -75 -80 0 100 200 300 400 Frequency (MHz) - 5 of 25 - 500 600 -85 0 100 200 300 400 Frequency (MHz) Disclaimer: Subject to change without notice www.triquint.com TAT8858A1H CATV Infrastructure Push-Pull Amplifier TAT8858A1H-PCB 12V Schematic Vbias R7 L20 J1 C41 +12V Vbias C9 L9 C24 GND L11 C13 L5 C25 R18 L19 Ra C7 L41 R1 R9 C15 R20 Vgate R19 R3 R5 C3 4 RF Input R30 2 1 3 C4 C31 1 16 2 15 3 L8 5 R32 C30 R6 L17 14 4 R31 R13 L13 13 U1 TAT8857F3 R11 R15 Vgate 2 12 6 11 7 10 8 9 1 L30 C2 RF Output T2 Cgate R12 3 R16 Vbias 4 C22 R14 L14 L18 R4 R2 L42 C16 R21 R10 C14 C8 L6 R8 Rb C10 L10 L12 C42 Vbias R9 L13 L17 L19 T2 C22 R10 C16 R21 R19 R18 C25 Rb Re R6 L12 L10 C10 C8 R2 C2 L14 L6 C4 R12 R4 C30 R14 L8 R32 R11 U1 R31 L30 L18 R3 L7 R8 T1 R13 R30 R20 C15 C3 C31 C13 Rd Ra R5 L11 L9 R1 C7 L5 C9 R7 TAT8858A1H-PCB 12V Evaluation Board Layout C14 C24 L20 Data Sheet: Rev C 10/21/13 © 2013 TriQuint - 6 of 25 - Disclaimer: Subject to change without notice www.triquint.com TAT8858A1H CATV Infrastructure Push-Pull Amplifier Bill of Material – TAT8858A1H-PCB 12V Reference Des. Description Manuf. n/a n/a Printed Circuit Board TriQuint U1 n/a SOIC16W IC TriQuint TAT8858 T1 n/a TX Line Transformer, 3rd winding, 1:1 Macom MABA-008483-CT1760 Macom MABA-007681-CT2010 T2 Value n/a TX Line Transformer, Special, 2:1 Mini-Circuits C30, C31 2.2 pF CAP 0402, ± 0.1pF, 50V, NPO/COG TDK C15, C16 4.7pF CAP 0402, ± 0.1pF, 50V, NPO/COG Murata Part Number TRS2-1T-1+ C1005C0G1H2R2B GRM1555C1H4R7BZ01D C3, C4, C7, C8, C22, C41, C42 0.01 uF CAP 0402, 10%, 50V, X7R various C13, C14 330 pF CAP 0402, 10%, 50V, X7R Panasonic C9, C10, C2 470 pF CAP 0402, 5%, 50V, NPO/COG TDK CGA2B2C0G1H471J C24, C25 0.01 uF CAP 0603, 10%, 50V, X7R AVX 06035C103KAT2A Cgate 100 pF CAP 0402, 10%, 50V, X7R L11, L12 880 nH IND 0805, ±5% GOWANDA L9, L10 12 nH IND 0402, 5% CoilCraft 0402CS-12NXJLW L5, L6 16 nH IND 0402, 5% CoilCraft 0402CS-16NXJLW L30 1.0 nH IND 0402, 5% CoilCraft 0402CS-1N0XJLW L17, L18 2.2 nH IND 0402, 5% CoilCraft 0402CS-2N2XJLW L20 900 nH IND 1008, 10% CoilCraft 1008AF-901XKLC L13, L14 43 nH IND 0402, 5% CoilCraft 0402CS-43NXJLW L8, L19, L41, L42 600 Ω RES 0402, 300mA bead Murata BLM15AG601SN1 R7, R8 36.0 Ω RES 0402, 1%, 50V, 1/10W various R1, R2 3.00 kΩ RES 0402, 1%, 50V, 1/10W various R3, R4 360 Ω RES 0402, 1%, 50V, 1/10W various 2.70 kΩ RES 0603, 1%, 75V, 1/10W various R19 845 Ω RES 0603, 1%, 75V, 1/10W various R5 5.10 kΩ RES 0402, 1%, 50V, 1/10W various R6 9.10 kΩ RES 0402, 1%, 50V, 1/10W various R9, R10 10.0 Ω RES 0402, 1%, 50V, 1/16W various Ra, Rb 15.0 Ω RES 0402, 1%, 50V, 1/10W various R15, R16 3.0 Ω RES 0402, 5%, 50V, 1/10W various R13, R14 2.40 kΩ RES 0402, 1%, 50V, 1/10W various R11, R12 33.0 Ω RES 0402, 1%, 50V, 1/16W various R20, R21 24.0 Ω RES 0402, 1%, 50V, 1/16W various 91.0 ohm RES 1206, 1%, 200V, 1/4W various R18 R30, R31, R32 Data Sheet: Rev C 10/21/13 © 2013 TriQuint - 7 of 25 - ECJ-0EB1H331K various CC0805-880J-2 Disclaimer: Subject to change without notice www.triquint.com TAT8858A1H CATV Infrastructure Push-Pull Amplifier Performance Plots – TAT8858A1H-PCB 12V 34 0 32 -5 S21 30 -10 S11 S22 28 -15 Return Loss (dB) Gain (dB) Test conditions unless otherwise noted: VCC=+12 V, IDD = 460 mA, TCASE = +25°C, 75 Ω system -20 26 24 -25 0 200 400 600 800 1000 1200 1400 Freq (MHz) TAT8858 12V CTB TAT8858 12V CSO 80 ch NTSC FLAT; 12v, 460mA 80 ch NTSC FLAT; 12v, 460mA -55 47 -65 46 45 44 -70 43 42 -75 41 -80 48 -60 48 Distortion (dBc) Distortion (dBc) 49 49 -60 47 46 -65 45 44 -70 43 42 -75 41 -80 0 100 200 300 400 500 600 0 Freq (MHz) Data Sheet: Rev C 10/21/13 © 2013 TriQuint Vout/ch -55 100 200 300 400 500 600 Freq (MHz) - 8 of 25 - Disclaimer: Subject to change without notice www.triquint.com TAT8858A1H CATV Infrastructure Push-Pull Amplifier TAT8858A1H 28 dB Gain Reference Design J1 L20 +24V Vbias GND R7 C9 L9 C25 C24 R18 C37 C7 C13 Vgate C15 R19 R3 R1 C11 R9 L11 R5 C3 C31 R31 4 2 1 3 L7 L8 1 16 2 15 3 14 4 13 U1 TAT8857F3 5 L17 R11 C36 R12 12 2 L19 C30 R6 RF Input 6 11 7 10 8 9 C28 R6 L18 1 C2 L30 RF Output T2 Vgate 3 R30 L31 C4 R15 R20 C27 R5 Vbias 4 C22 C12 R10 L12 R16 R21 R2 R4 C8 C14 C10 L10 C16 C38 R8 C11 L17 T2 C22 L18 R12 C2 C12 C16 R21 C14 R19 R18 C25 R10 L12 R6 R16 L14 C28 R8 L10 C10 C8 R2 R11 L30 L19 R13 U1 R6 C4 C36 L8 C30 L13 R14 L7 R20 C15 R4 R31 R30 C13 C37 R15 R9 R5 L11 C27 L9 C7 R3 C31 T1 R1 R5 C9 C3 L31 R7 TAT8858A1H 28 dB Gain Reference Design Layout C38 C24 L20 Data Sheet: Rev C 10/21/13 © 2013 TriQuint - 9 of 25 - Disclaimer: Subject to change without notice www.triquint.com TAT8858A1H CATV Infrastructure Push-Pull Amplifier Bill of Material – TAT8858A1H 28 28 dB Gain Reference Design Reference Des. Description Manuf. n/a Value n/a Printed Circuit Board TriQuint U1 n/a SOIC16W IC TriQuint T1 n/a TX Line Transformer, 1:1 TX Line Transformer, Special, 2:1 Part Number TAT8858 MA-COM MABA-008483-CT1760 MA-COM MABA-007681-CT2010 T2 n/a C2 470 pF CAP 0402, 5%, 50V, NPO/COG C15, C16 5.6 pF CAP 0402, ± 0.1pF, 50V, NPO/COG Murata C3, C4, C7, C8, C11, C12, C22 0.01 uF CAP 0402, 10%, 50V, X7R various C13, C14 270 pF CAP 0402, 10%, 50V, X7R Panasonic C9, C10 560 pF CAP 0402, 5%, 50V, NPO/COG TDK CGA2B2C0G1H561J C24, C25 C27, C28, C36, C37, C38 C30, C31 0.01 uF CAP 0603, 10%, 50V, X7R AVX 06035C103KAT2A 0.5 pF CAP 0402, ± 0.1pF, 25V, NPO/COG AVX 04023J0R5BBSTR 1.5 pF CAP 0402, ± 0.1pF, 50V, NPO/COG TDK C1005C0G1H1R5B L11, L12 180 nH IND 0402, 5% CoilCraft 0402AF-181XJLU L9, L10, L17, L18 3.9 nH IND 0402, 5% CoilCraft 0402CS-3N9XJLW R5, R6 270 Ω RES 0402, 1%, 1/16W L30, L31 1.0 nH IND 0402, 5% CoilCraft 0402CS-1N0XJLW L20 900 nH IND 1008, 10% CoilCraft 1008AF-901XKLC R15, R16 51.0 Ω RES 0402, 1%, 1/10W L7, L8, L19 600 Ω RES 0402, 300mA ferrite bead Murata R7, R8 18.0 Ω RES 0402, 1%, 1/10W various R1, R2 20.0 kΩ RES 0402, 1%, 1/10W various R3, R4 0.0 Ω RES 0402, 1/10W various Mini-Circuits TDK RES 0603, 1%, 1/10W various R19 2.00 kΩ RES 0603, 1%, 1/10W various R5 10.0 kΩ RES 0402, 1%, 1/10W various R6 18.2 kΩ RES 0402, 1%, 1/10W various R9, R10 200 Ω RES 0402, 1%, 1/16W various R11, R12 33.0 Ω RES 0402, 1%, 1/16W various R20, R21 51.0 Ω RES 0402, 1%, 1/16W various R30, R31 12.0 ohm RES 1206, 1%, 1/4W various - 10 of 25 - GRM1555C1H5R6BZ01D ECJ-0EB1H271K various 2.70 kΩ © 2013 TriQuint CGA2B2C0G1H471J various R18 Data Sheet: Rev C 10/21/13 TRS2-1T-1+ BLM15AG601SN10 Disclaimer: Subject to change without notice www.triquint.com TAT8858A1H CATV Infrastructure Push-Pull Amplifier Performance Plots – 28 dB Gain Reference Design -60 70 -62 68 -64 66 -66 64 -68 62 -70 60 -72 58 -74 56 -76 54 -78 52 -80 CCN (dB) CSO, CTB, XMOD (dBc) Test conditions unless otherwise noted: VCC=+24 V, IDD = 270 mA, TCASE = +25°C, 75 Ω system 50 0 100 200 300 400 500 600 Freq Noise Figure Low End Noise Figure TAT8858 28 dB Configuration 5 5 4.5 4.5 4 4 3.5 3.5 3 NF (dB) NF (dB) TAT8858 28 dB Configuration 2.5 2 3 2.5 2 1.5 1.5 1 1 0.5 0.5 0 0 0 200 400 Data Sheet: Rev C 10/21/13 © 2013 TriQuint 600 Freq (MHz) 800 1000 20 1200 - 11 of 25 - 40 60 Freq (MHz) 80 100 Disclaimer: Subject to change without notice www.triquint.com TAT8858A1H CATV Infrastructure Push-Pull Amplifier TAT8858A1H 1200 MHz Reference Design J1 L20 +24V Vbias GND R7 C25 C24 R18 C9 L9 Vgate C7 C13 Ra L5 R1 R19 C11 R9 C15 R20 L11 R3 R5 C3 C31 R30 J1 RF Input 4 L7 2 1 C30 R6 R40 15 3 14 L17 R11 2 L19 TAT8857F3 11 7 10 8 9 3 R12 L18 C2 L30 RF Output Vbias 4 Cout C22 R14 L14 C12 R10 1 T2 Vgate 12 6 R4 R13 L13 13 U1 5 R31 C4 16 4 L8 3 Cin 1 2 L12 C16 R21 R2 C40 Rb L6 C8 C14 C10 L10 R8 R9 L13 L17 L19 T2 C22 C12 R10 C16 R21 R19 R18 C25 R6 L12 L10 C10 C8 R2 C2 L14 L6 C4 R12 L30 L18 C30 R11 U1 R14 L8 R13 R3 R31 R4 L7 R8 T1 R30 R20 C15 C3 C31 C13 Cout C11 R5 Rb C7 Ra R1 L5 C40 Cin C40 L11 L9 C9 R7 TAT8858A1H 1200 MHz Reference Design Layout C14 C24 L20 Data Sheet: Rev C 10/21/13 © 2013 TriQuint - 12 of 25 - Disclaimer: Subject to change without notice www.triquint.com TAT8858A1H CATV Infrastructure Push-Pull Amplifier Bill of Material – TAT8858A1H 1200 MHz Reference Design Reference Des. Description Manuf. n/a n/a Printed Circuit Board TriQuint U1 n/a SOIC16W IC TriQuint TAT8858 T1 n/a TX Line Transformer, 3rd winding, 1:1 Macom MABA-008483-CT1760 Macom MABA-007681-CT2010 T2 Value n/a TX Line Transformer, Special, 2:1 Mini-Circuits C30, C31 2.2 pF CAP 0402, ± 0.1pF, 50V, NPO/COG TDK C15, C16 4.7pF CAP 0402, ± 0.1pF, 50V, NPO/COG Murata C3, C4, C7, C8, C11, C12, C22 0.01 uF CAP 0402, 10%, 50V, X7R various C13, C14 330 pF CAP 0402, 10%, 50V, X7R Panasonic C9, C10, C2 470 pF CAP 0402, 5%, 50V, NPO/COG C24, C25 0.01 uF CAP 0603, 10%, 50V, X7R C40 12 pF CAP 0402, 5%, 50V, NPO/COG Cin 0.3 pF CAP 0402, ± 0.05pF, 25V 0.5 pF CAP 0402, ± 0.1pF, 25V Cout Part Number TRS2-1T-1+ C1005C0G1H2R2B GRM1555C1H4R7BZ01D ECJ-0EB1H331K TDK CGA2B2C0G1H471J AVX 06035C103KAT2A Murata GRM1555C1H120JA01D AVX 04023J0R3ABWTR AVX 04023J0R5BBSTR L11, L12 470 nH IND 0402, 5% CoilCraft 0402AF-471XJLU L9, L10 12 nH IND 0402, 5% CoilCraft 0402CS-12NXJLW L5, L6 16 nH IND 0402, 5% CoilCraft 0402CS-18NXJLW L30 4.7 nH IND 0402, 5% CoilCraft 0402CS-4N7XJLW L17, L18 2.2 nH IND 0402, 5% CoilCraft 0402CS-2N2XJLW L20 900 nH IND 1008, 10% CoilCraft 1008AF-901XKLC L13, L14 43 nH IND 0402, 5% CoilCraft 0402CS-43NXJLW L7, L8, L19 600 Ω RES 0402, 300mA bead Murata BLM15AG601SN1 R7, R8 36.0 Ω RES 0402, 1%, 50V, 1/10W various R1, R2 20.0 kΩ RES 0402, 1%, 50V, 1/10W various R3, R4 360 Ω RES 0402, 1%, 50V, 1/10W various R18 2.70 kΩ RES 0603, 1%, 75V, 1/10W various R19 2.00 kΩ RES 0603, 1%, 75V, 1/10W various R5 8.06 kΩ RES 0402, 1%, 50V, 1/10W various R6 18.2 kΩ RES 0402, 1%, 50V, 1/10W various 200 Ω RES 0402, 1%, 50V, 1/16W various Ra, Rb 15.0 Ω RES 0402, 1%, 50V, 1/10W various R13, R14 2.40 kΩ RES 0402, 1%, 50V, 1/10W various R11, R12 33.0 Ω RES 0402, 1%, 50V, 1/16W various R20, R21 24.0 Ω RES 0402, 1%, 50V, 1/16W various R30, R31 12.0 Ω RES 1206, 1%, 200V, 1/4W various R40 1.0 kΩ RES 0402, 1%, 50V, 1/10W various R9, R10 Data Sheet: Rev C 10/21/13 © 2013 TriQuint - 13 of 25 - Disclaimer: Subject to change without notice www.triquint.com TAT8858A1H CATV Infrastructure Push-Pull Amplifier Performance Plots – TAT8858A1H 1200 MHz Reference Design Test conditions unless otherwise noted: VCC=+24 V, IDD = 270 mA, TCASE = +25°C, 75 Ω system Gain vs. Frequency 38 Return Loss vs Frequency 0 Temp.=+25°C Temp.=+25° -5 36 |S11| , |S22| (dB) -10 Gain (dB) 34 32 30 28 26 |S22| -15 |S11| -20 -25 -30 -35 -40 0 200 Data Sheet: Rev C 10/21/13 © 2013 TriQuint 400 600 800 Frequency (MHz) 1000 1200 - 14 of 25 - 0 200 400 600 800 Frequency (MHz) 1000 1200 Disclaimer: Subject to change without notice www.triquint.com TAT8858A1H CATV Infrastructure Push-Pull Amplifier Detailed Device Description The TAT8858A1H is a 2-stage balanced amplifier using pHEMT & MESFET Technology. Each stage utilizes cascode topology to provide wide bandwidth and efficient linear amplification. The TAT8858 allows flexibility to set the gain and bias to meet the requirements of different applications without additional active devices. Bias options allow the designer to select either 12V bias for lower power dissipation green designs, or 24V for existing power supply systems. The TAT8858A1H push-pull amplifier can be configured to split a 24 V supply (and share the same current) or both amplifiers can be biased from a 12V supply and draw current independently. DC Operation In 24V application output stage 2A is in series with input stage 1A, shown as in simplified DC diagram below. Output stage 2B is in series with input stage 1B. The DC current I (A+B) flows from 24 V to ground through stage A & B in the direction shown below. C3 0.01 uF Pin3 Pin1 1A C13 330 pF Pin15 2A Pin4 R30 12 L17 2.2 nH Pin14 Pin16 IA IA L11 470 nH T2 2 to 1 BALUN 2 OUT1 IN 3 IB C4 0.01 uF Pin6 Pin8 1B C14 330 pF Pin10 Pin5 R31 12 Data Sheet: Rev C 10/21/13 © 2013 TriQuint IB SEC OUT2 L30 1.0nH 1 PRI GND RF C2 470 pF OUT I (A+B) 4 MABA-007681 -CT2010 C22 .01uF 24 V Vbias L18 2.2 nH 2B Pin11 Pin9 L12 470 nH - 15 of 25 - Disclaimer: Subject to change without notice www.triquint.com TAT8858A1H CATV Infrastructure Push-Pull Amplifier Detailed Device Description Bias Current Adjustment R7 36 L5 C9 470pF C13 3 C7 .01uF 16nH Bias current is determined by 2 settings: L9 12nH R9 200 R1 20k 1. Size of DC feedback resistors - decreasing R1 & R2 will increase the bias current IDD. 2. Tail resistors - decreasing R30, R31 will increase IDD, but lead to wider variations. Active biasing schemes are possible but not necessary for most applications. Best performance is with IDD = 270mA C11 0.01u L11 470 R3 360 1 16 BIAS 2A R5 8.06k C31 2.2pF 2 15 LIN ADJ A 2A 3 L7 600 R30 12 1 1 R31 12 4 2 BIAS 1A BIAS 1B L8 600 C30 2.2pF 13 U1 TAT8858 12 GATE B 6 R6 18.2k 11 1B 7 LIN ADJ B 8 R11 3 GATE A 8857D 5 2 14 1A R12 3 10 2B 9 BIAS 2B R4 L12 360 R2 L6 16nH 20k R10 200 470 C14 3 C8 .01uF R8 36 C12 0.01u L10 12nH C10 470pF Biasing of Output FET: 1. Voltage split ratio is left to the customer and is set by Vgate. 2. In 24V application no cap should be put on Vgate. This prevents a turn-on over-voltage condition from damaging the output FET. 3. Voltage divider should be done with same or lower resistor values to prevent gate leakage current in the output FET from affecting Vgate. Data Sheet: Rev C 10/21/13 © 2013 TriQuint No capacitance on Vgate. - 16 of 25 - Disclaimer: Subject to change without notice www.triquint.com TAT8858A1H CATV Infrastructure Push-Pull Amplifier Detailed Device Description RF Operation Gain Setting There are two primary ways to adjust the low frequency gain. 1. Adjust shunt feedback resistors around input and output stages. 2. Adjust resistors in inter – stage equalizer. R7 36 L5 16nH L9 12nH R9 200 C11 0.01u 1 C15 4.7 R20 24 L11 470nH R3 360 Ra 15 C13 330pF C7 .01uF R1 20k 16 BIAS 2A R5 8.06k 1 pF 2 1 2 1 2 15 L13 R13 14 43nH 2.4k LIN ADJ A 2A 3 L7 600 2 .01u C9 470pF 1A 4 BIAS 1A 13 U1 BIAS 1B TAT8858 R11 33 1 12 2 Vgate GATE B L8 600 2. L19 600 GATE A 8857D 5 L1 R12 33 L1 Tilt Adjustment 1. Adding inductors in series with the shunt feedback resistors will peak the gain. Data Sheet: Rev C 10/21/13 © 2013 TriQuint - 17 of 25 - Disclaimer: Subject to change without notice www.triquint.com TAT8858A1H CATV Infrastructure Push-Pull Amplifier Detailed Device Description Inter – stage Equalizer Use inter – stage network for gain and tilt adjustment. Two inter – stage RLC networks shape the gain and return loss without affecting the noise figure and output performance. 1. Increasing inductor L9 will provide up-tilt. C9 affects very low frequency response. 2. Ra and C15 will affect up-tilt shape. Stage 2A Stage 1A R20 24 Pin1 R7 36 Pin15 1 C13 330 pF Ra 15 C15 4.7 pF L9 12 nH C9 470 pF Inter – stage equalizer Data Sheet: Rev C 10/21/13 © 2013 TriQuint - 18 of 25 - Disclaimer: Subject to change without notice www.triquint.com TAT8858A1H CATV Infrastructure Push-Pull Amplifier Detailed Device Description Return Loss Adjustment 1. Low frequency return loss should be considered at the same time with gain using the feedback and equalizer resistor values. 2. High frequency return loss can be adjusted with changes to the capacitor and inductor values near the input balun and output transformer. R1 20k R3 360 CTB Linearization 1. R5, R6 determines linearizer bias current. Increasing R5, R6 decreases linearizer bias current. Decreasing R5, R6 increases linearizer bias current. 2. R5, R6 value in the reference design has been empirically optimized for the best CTB. R5, R6 settings have some impact on CSO. 1 R5 8.06k C3 1uF C31 2.2pF 2 LIN ADJ A 3 L7 600 R30 12 1 1 3 R31 12 C30 2.2pF 1A 4 2 BIAS 1A 2 C4 1uF R9 200 2 BIAS 1B L8 600 U1 TAT885 8857D 5 6 R6 18.2k 7 1B LIN ADJ B 8 R4 360 R2 Data Sheet: Rev C 10/21/13 © 2013 TriQuint - 19 of 25 - 20k R10 200 Disclaimer: Subject to change without notice www.triquint.com TAT8858A1H CATV Infrastructure Push-Pull Amplifier Detailed Device Description CSO Optimization CSO is strongly dependent on circuit balance. Requires attention to: 1. Good input balun balance. 2. Good output transformer balance. 3. Maintaining symmetrical gain and phase response between circuit halves. C3 .01uF MABA-08483-CT1760 4 1 RF IN 1 2 3 T1 Cin 0.2pF C3 2.2 Ma, Oa R30 12 3 2 Ma, Oa C4 .01uF Input balun R31 1 C3 2.2 Output transformer Mb, Ob Mb, Ob L30 1.0nH T2 2 to 1 BALUN 2 OUT1 IN 3 SEC OUT2 1 PRI GND 4 MABA-007681 -CT2010 C22 .01uF Circuit Balance 1. Pre-amp stage (stage 1A & stage 1B) is done with a differential pair topology. 2. A high impedance from Pin 4 & 5 to ground helps the pre-amp keep balance when the input balun is not perfect. 3. Ferrite beads can achieve high impedance at low cost. Two beads can be used to increase the current handling capability. Data Sheet: Rev C 10/21/13 © 2013 TriQuint - 20 of 25 - Disclaimer: Subject to change without notice www.triquint.com TAT8858A1H CATV Infrastructure Push-Pull Amplifier Detailed Device Description Stability 1. Significant stabilization circuits have been placed on the RFICs. However, external circuitry can affect stability. 2. These components are helpful to reduce out of band gain and improve stability. Data Sheet: Rev C 10/21/13 © 2013 TriQuint - 21 of 25 - Disclaimer: Subject to change without notice www.triquint.com TAT8858A1H CATV Infrastructure Push-Pull Amplifier Detailed Device Description DC Operation - 12V Supply Application DC wise in 12V application output stage 2A is in parallel with input stage 1A, shown as in simplified DC diagram below. Similarly stage 2B is in parallel with input stage 1B. The DC current I (2A+2B), I 1A, I 1B flow from 12 V to ground through stage A & B in the direction shown below. C3 0.01 uF Pin3 Pin1 1A C13 330 pF L11 880 nH I 1A Pin6 Pin8 1B R9 10 2 3 2 to 1 BALUN OUT1 SEC OUT2 IN L12 880 nH R30//R31//R32 C2 470 pF OUT 1 PRI GND 4 MABA-007681 -CT2010 C14 330 pF RF L30 1.0nH T2 12 V Vbias 12 V Vbias I C22 .01uF L18 3.3 nH 2B Pin10 Pin5 Pin14 Pin16 R30//R31//R32 C4 0.01 uF 2A Pin15 Pin4 L17 3.3 nH Pin11 Pin9 R10 10 12 V Vbias I 1B RF Operation RF analysis for 12V supply application circuit is very similar to 24V. Please refer to the earlier part of Detailed Device Description for details. Evaluation Board PCB Information 3.000" TriQuint PCB 50-0177-04 Material and Stack-up 1 oz. Cu top layer 0.031 ± 0.005 Finished Board Thickness FR402 εr=4.3 typ. 2.000" 1 oz. Cu bottom layer Data Sheet: Rev C 10/21/13 © 2013 TriQuint - 22 of 25 - Disclaimer: Subject to change without notice www.triquint.com TAT8858A1H CATV Infrastructure Push-Pull Amplifier Pin Configuration and Description Pin 1 Reference Mark Out 1A 1 16 Bias 2A Lin Adj A 2 15 In 2A In 1A 3 14 Out 2A Bias 1A 4 13 Gate A Bias 1B 5 12 Gate B In 1B 6 11 Out 2B Lin Adj B 7 10 In 2B Out 1B 8 9 Bias 2B Backside Paddle - RF/DC GND Pin No. Symbol 1 OUT 1A 2 LIN ADJ A 3 IN 1A 4 BIAS 1A 5 BIAS 1B 6 IN 1B 7 LIN ADJ B 8 OUT 1B 9 BIAS 2B 10 IN 2B 11 OUT 2B 12 GATE B 13 GATE A 14 OUT 2A 15 IN 2A 16 BIAS 2A Backside Paddle RF/DC GND Data Sheet: Rev C 10/21/13 © 2013 TriQuint Description Stage 1A cascode amplifier drain output. Connect to stage 2A cascode amplifier input Pin 16 using DC blocking cap C13, buffer and gain equalizer network (R20, Ra, C15), as shown in schematic page 3. Linearization adjustment A. Connect to ground using R5 to set linearizer bias. Stage 1A cascode amplifier gate input. Connect to a balun output using blocking cap C3. Connect to stage 1A output Pin 1 using feedback network (R3, L5, R1, C7) to set gain and DC bias current. Connect to R30, R31 virtual ground using C5 to improve S11. Stage 1A cascode amplifier source. Connect to ground using L7, R30. Pin 4 and Pin 5 are connected on chip. Stage 1B cascode amplifier source. Connect to ground using L8, R31. Pin 4 and Pin 5 are connected on chip. Stage 1B cascode amplifier gate input. Connect to a balun output using blocking cap C4. Connect to stage 1B output Pin 8 using feedback network (R4, L6, R2, C8) to set gain and DC bias current. Connect to R30, R31 virtual ground using C6 to improve S11. Linearization adjustment B. Connect to ground using R6 to set linearizer bias. Stage 1B cascode amplifier drain output. Connect to stage 2B cascode amplifier input Pin 10 using DC blocking cap C14, buffer and gain equalizer network (R21, Rb, C16). Stage 2B cascode amplifier source. Connect to ground using serial RC network in 24V application. Connect to ground using serial resistor - bead network in 12V application. See more in detailed device description. BIAS 2B and BIAS 2A are connected on chip. Stage 2B cascode amplifier input. Connect to stage 1B cascode amplifier drain output as explained in Pin 8 description. Stage 2B cascode amplifier drain output. Requires DC bias applied through the output balun, RL feedback network and series matching inductor. Stage 2B cascode amplifier output FET gate. Connect to gate bias using a resistor and a bead. Stage 2A cascode amplifier output FET gate. Connect to gate bias using a resistor and a bead. Stage 2A cascode amplifier drain output. Requires DC bias applied through the output balun, RL feedback network and series matching inductor. Stage 2A cascode amplifier input. Connect to stage 1A cascode amplifier drain output as explained in Pin 1 description. Stage 2A cascode amplifier source. Connect to ground using serial RC network in 24V application. Connect to ground using serial resistor - bead network in 12V application. See more in detailed device description. BIAS 2A and BIAS 2B are connected on chip. RF/DC ground. Use recommended via pattern to minimize inductance and thermal resistance; see PCB Mounting Pattern for suggested footprint. - 23 of 25 - Disclaimer: Subject to change without notice www.triquint.com TAT8858A1H CATV Infrastructure Push-Pull Amplifier Mechanical Information Package Marking and Dimensions Notes: 1. All dimensions are in millimeters. Angles are in degrees. 2. Except where noted, this part outline conforms to JEDEC standard MO-220, Issue E (Variation VGGC) for thermally enhanced plastic very thin fine pitch quad flat no lead package (QFN). 3. Dimension and tolerance formats conform to ASME Y14.4M-1994. 4. The terminal #1 identifier and terminal numbering conform to JESD 95-1 SPP-012. PCB Mounting Pattern 4 Notes: 1. All dimensions are in millimeters. Angles are in degrees. 2. Use 1 oz. copper minimum for top and bottom layer metal. 3. A heatsink underneath the area of the PCB for the mounted device is strictly required for proper thermal operation. Damage to the device can occur without the use of one. 4. Vias are required under the backside paddle of this device for proper RF/DC grounding and thermal dissipation. 5. Do not remove or minimize via hole structure in the PCB. Thermal and RF grounding is critical. 6. We recommend a 0.35mm (#80/.0135") diameter bit for drilling via holes and a final plated thru diameter of 0.25 mm (0.10”). 7. Ensure good package backside paddle solder attach for reliable operation and best electrical performance. Data Sheet: Rev C 10/21/13 © 2013 TriQuint - 24 of 25 - Disclaimer: Subject to change without notice www.triquint.com TAT8858A1H CATV Infrastructure Push-Pull Amplifier Product Compliance Information ESD Sensitivity Ratings Solderability Caution! ESD-Sensitive Device ESD Rating: Value: Test: Standard: Compatible with both lead-free (260 °C max. reflow temperature) and tin/lead (245 °C max. reflow temperature) soldering processes. Contact plating: Matte Tin Class III Passes ≥ 500 V Human Body Model (HBM) JEDEC Standard JESD22-A114 RoHs Compliance This part is compliant with EU 2002/95/EC RoHS directive (Restrictions on the Use of Certain Hazardous Substances in Electrical and Electronic Equipment). MSL Rating MSL Rating: Level 3 Test: 260°C convection reflow Standard: JEDEC Standard IPC/JEDEC J-STD-020 This product also has the following attributes: • Halogen Free (Chlorine, Bromine) • Antimony Free • TBBP-A (C15H12Br402) Free • PFOS Free • SVHC Free Contact Information For the latest specifications, additional product information, worldwide sales and distribution locations, and information about TriQuint: Web: www.triquint.com Email: info-sales@triquint.com Tel: Fax: +1.503.615.9000 +1.503.615.8902 For technical questions and application information: Email: sjcapplications.engineering@triquint.com Important Notice The information contained herein is believed to be reliable. TriQuint makes no warranties regarding the information contained herein. TriQuint assumes no responsibility or liability whatsoever for any of the information contained herein. TriQuint assumes no responsibility or liability whatsoever for the use of the information contained herein. The information contained herein is provided "AS IS, WHERE IS" and with all faults, and the entire risk associated with such information is entirely with the user. All information contained herein is subject to change without notice. Customers should obtain and verify the latest relevant information before placing orders for TriQuint products. The information contained herein or any use of such information does not grant, explicitly or implicitly, to any party any patent rights, licenses, or any other intellectual property rights, whether with regard to such information itself or anything described by such information. TriQuint products are not warranted or authorized for use as critical components in medical, life-saving, or lifesustaining applications, or other applications where a failure would reasonably be expected to cause severe personal injury or death. Data Sheet: Rev C 10/21/13 © 2013 TriQuint - 25 of 25 - Disclaimer: Subject to change without notice www.triquint.com
