NJU7085
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NJU7085 High-Power & Low-Voltage Stereo Audio Power Amplifier with 3D Surround ■ PACKAGE OUTLINE ■GENERAL DESCRIPTION The NJU7085 is a stereo audio power amplifier with surround sound technology for portable applications. No external coupling capacitors are required because of the differential outputs. The closed loop gain is adjusted by two external resistors. And the standby mode control reduces the supply current. The NJU7085 contains pop & click noise protection circuitry which eliminates noises during turn-on and turn-off transitions and RF rectification canceling circuitry. NJU7085SF7 ■ APPLICATION • Portable DVD/TV • Cradle Speaker • Mobile-phone/PHS NJU7085V ■FEATURES + • Operating Voltage V =2.8 to 5.5V • Operating Current IDD1=4.6 mA typ. • Supply Current in Power Down Mode IDD4=2µA max. • Output Power Po=400mW/ch typ. • Low Output Noise 25µVrms typ. • Variable Surround Effect by external resistor • Standby function • Mute Function • C-MOS Technology • Package Outline PCSP32F7,SSOP32 (Mobile mode) (Standby mode) + (V =3V,RL=4Ω) ■ BLOCK DIAGRAM PS NFLO NFLI NFRI ROUT eala RINP ROUT- RIN eala Processor Block ROUT+ LIN LOUT+ Bias Block V+ GND Vref Control Block LOUT- ealaTC DNC D2 D1 D0 LOUT eala LINP -1- NJU7085 ■ PIN CONFIGURATION (SSOP32) 1 D2 ealaTC 32 2 D1 DNC 31 3 D0 VREF 30 4 NC 5 GND 6 LOUT+ 7 V+ V+ 26 8 V+ V+ 25 9 LOUT- 29 NC GND 28 ROUT+ 27 ROUT- 24 10 GND 11 NC 12 LINP 13 LOUTeala 14 PS 15 NFLO 16 RIN 18 16 NFLI LIN 17 GND 23 NC 22 RINP 21 ROUTeala 20 NFRI 19 No. Symbol Function No. Symbol 1 D2 Mode Control Switch 2 17 LIN Function Lch Input 2 D1 Mode Control Switch 1 18 RIN Rch Input 3 D0 Mode Control Switch 0 19 NFRI 4 NC - 20 ROUTeala 5 GND GND 21 RINP 6 LOUT+ Lch+ Output 22 NC 7 V+ Power Supply 23 GND 8 V+ Power Supply 24 ROUT- 9 LOUT- Lch- Output 25 V+ Power Supply 10 GND GND 26 V+ Power Supply 11 NC - 27 ROUT+ Rch+ Output 12 LINP Power Amp Lch Input 28 GND 13 LOUTeala eala Processor Lch output 29 NC 14 PS Filter 30 VREF Reference Voltage 15 NFLO Filter 31 DNC Do Not Connect 16 NFLI Filter 32 ealaTC Filter eala processor Rch Output Power Amp Rch Output GND Rch- Output GND - Filter *All power supply pin should be connected. -2- NJU7085 ■ PIN CONFIGURATION (PCSP32F7) A6 B6 C6 D6 E6 F6 A5 B5 C5 D5 E5 F5 A4 B4 C4 D4 E4 F4 A3 B3 C3 D3 E3 F3 A2 B2 C2 D2 E2 F2 A1 B1 C1 D1 E1 F1 PCSP32F7 (TOP VIEW) No. A1 A2 A3 A4 A5 A6 Symbol GND D0 D2 DNC Vref GND No. B1 B2 B3 B4 B5 B6 Symbol LOUT+ NC D1 ealaTC NC ROUT+ No. C1 C2 C3 C4 C5 C6 PCSP32F7 Symbol No. Symbol D1 V+ LOUTNC D2 NC NC D3 NC NC D4 NC NC D5 NC D6 V+ ROUT- No. E1 E2 E3 E4 E5 E6 Symbol GND LINP NFLI RIN ROUTeala GND No. F1 F2 F3 F4 F5 F6 Symbol LOUTeala PS NFLO LIN NFRI RINP -3- NJU7085 ■ ABSOLUTE MAXIMUM RATINGS (Ta=25°C) PARAMETER SYMBOL RATINGS UNIT +7 V + Supply Voltage V 1) Power Dissipation PD 950* (SSOP32) 1500*2) (SSOP32) 720* 1) 2) 1700* (PCSP32) mW (PCSP32) Output Peak Current Operating Temperature Range Io Topr 500 -40 to +85 mA Storage Temperature Range Tstg -40 to +125 °C °C 1) * EIA/JEDEC STANDARD Test board (76.2 x 114.3 x 1.6mm, 2layers, FR-4) mounting 2) * EIA/JEDEC STANDARD Test board (76.2 x 114.3 x 1.6mm, 4layers, FR-4) mounting Junction Temperature: Tj = θja (Thermal Resistance) x Pd (Power Dissipation on your application) x Ta(Ambient Temperature) Tj should be less than 0.8 times of the storage maximum temperature. ■ RECOMMENDED OPERATING VOLTAGE RANGE (Ta=25°C) PARAMETER Operating Voltage Range SYMBOL TEST CONDITION MIN. TYP. MAX. UNIT - 2.8 3.0 5.5 V + V ■ ELECTRICAL CHARACTERISTICS (Ta=25°C,V+=3V, Unless otherwise specified) PARAMETER Operating Current Reference Voltage SYMBOL TEST CONDITION MIN. TYP. MAX. UNIT IDD1 IDD2 IDD3 No signal, RL=∞, Mobile mode No signal, RL=∞, Mute mode No signal, RL=∞, Charge mode - 4.6 4.6 200 8.0 8.0 400 mA mA IDD4 Vref No signal, RL=∞, STBY mode - 1.27 1.5 2.0 1.72 µA V µA • AC Characteristics + (Ta=25°C, V =3V, GV=6dB, VIN=-20dBV, f=1kHz, RL=4Ω, BW=400Hz to 30kHz, Bypass mode, unless otherwise specified) PARAMETER Maximum Input Voltage SYMBOL TEST CONDITION MIN. - VIM1 THD=1% VIM2 THD=1%, f=100Hz, eala mode Lin→Lout, R1+R2=4.7kΩ - VNO1 Rg=0Ω, A-weighted - Output Noise Voltage (THD+N) Bypass Gain MAX. - UNIT dBV (mVrms) dBV (µVrms) - THD1 Po=200mW - 0.1 - THD2 Po=200mW, eala mode - 0.1 - GVBYP Bypass mode VIN=-26dBV, f=100Hz, Lin→Lout, eala mode, R1+R2=4.7kΩ f=100Hz, Lin→Lout, eala mode R1+R2=54.7kΩ VIN=-26dBV, f=100Hz, Lin→Lout, Mobile mode, R1+R2=4.7kΩ f=100Hz,Lin→Lout, Mobile mode, R1+R2=54.7kΩ 5.0 6.0 7.0 dB 17.5 20.5 23.5 dB 6.5 8.5 10.5 dB 17.5 20.5 23.5 dB 6.5 8.5 10.5 dB Surround Gain 1 GVSUR1 Surround Gain 2 GVSUR2 Surround Gain 3 GVSUR3 Surround Gain 4 GVSUR4 -4- -4.0 (630) -21.4 (85) -92 (25.1) -90 (31.6) Rg=0Ω, A-weighted, eala mode VNO2 Total Harmonic Distortion TYP. % NJU7085 • AC Characteristics + (Ta=25°C, V =3V, GV=6dB, VIN=-20dBV, f=1kHz, RL=4Ω, BW=400Hz to 30kHz, Bypass mode, unless otherwise specified) PARAMETER SYMBOL Output Power Power Supply Rejection Raito Mute Attenuation Channel Separation Input Resistance Output Offset Voltage TEST CONDITION MIN. TYP. MAX. UNIT Po PSRR THD≤2%, Gv=12dB Vripple=1kHz/100mVrms 320 - 400 55 - mW dB MAT1 Mute mode - -95 - dB MAT2 STBY mode RS=600W, VO=1Vrms, f=1kHz, A-weighted LIN, RIN Terminal - -130 - dB - 70 - dB - 100 - 10 -60 - 60 mV TYP. MAX. UNIT CS RIN Mode Control Terminal VIN=0V RMODE VOD • Mode Control (Ta=25°C, V+=3V) PARAMETER SYMBOL High Level Input Voltage Low Level Input Voltage TEST CONDITION VIH VIL MIN. + - 0.7V 0 - kΩ + V 0.25 V ■ CONTROL TERMINAL EXPLANATION • MUTE/Standby Mode Control (MUTE, STBY Terminal) Operation Mode D2 D1 D0 STBY L L L IC is non-active Charge H L L Reference Voltage Charge mode MUTE H L H Non output signal Bypass L H H INPUT through eala L L H eala-ON Mobile H H H eala Mobile-ON Inhibited Setting Except for above NOTE - -5- NJU7085 ■TERMINAL DESCRIPTION PIN No. PIN No. SSOP32 PCSP32 1 2 3 A3 B3 A2 SYMBOL FUNCTION D2 D1 D0 Mode Switch EQUIVALENT CIRCUIT TERMINAL DC VOLTAGE Control 100 7,8, 25,26 C1 C6 V+ 5,10, 23,28 A1 A6 E1 E6 GND Power V+ Power GND 0 GND 6 9 24 27 B1 D1 D6 B6 LOUT+ LOUTROUTROUT+ 12 21 E2 F6 LINP RINP Lch+ Output Lch- Output Rch- Output Rch+ Output V+/2 Lch Input to Power Amp Rch Input to PowerAmp V+/2 100 -6- NJU7085 PIN No. PIN No. SSOP32 PCSP32 13 20 F1 E5 SYMBOL FUNCTION LOUTeala ROUTeala Lch Input to eala Processer Rch Input to eala Processer EQUIVALENT CIRCUIT TERMINAL DC VOLTAGE V+/2 20k 14 F2 PS V+/2 Filter 20k 100 15 F3 NFLO V+/2 Filter 20k 16 19 E3 F5 NFLI NFRI V+/2 Filter 20k 100 -7- NJU7085 PIN No. PIN No. SSOP32 PCSP32 17 18 F4 E4 SYMBOL LIN RIN FUNCTION EQUIVALENT CIRCUIT Lch Input Rch Input VREF 100k 100 100 TERMINAL DC VOLTAGE V+/2 10p 10p 30 A5 Vref V+/2 Reference Voltage 20k 100 20k 32 B4 ealaTC Filter 200k 100 200k 4,11 22,29 31 -8- B2,B5 C2,C3, C4,C5 D2,D3 D4,D5 A4 NC DNC No Connection Do Not Connection NJU7085 ■ APPLICATION CIRCUIT C6=3.3nF R1=4.7kΩ C5= 22nF PS Ci=0.1uF NFLO R2=50kΩ NFLI Ri=20kΩ C7=3.3nF ROUT eala NFRI Rf=20kΩ RINP ROUT- RIN Rch RL eala Processor Block Ci=0.1uF ROUT+ LIN LOUT+ Lch V+ Bias Block RL Control Block LOUT- + GND C1= 10uF Vref C2= 1uF ealaTC DNC C3= R9= 0.1uF 100k Ω D2 D1 R8= 100kΩ D0 LOUT eala R3= 100kΩ LINP Ri=20kΩ Rf=20kΩ Mode Control -9- NJU7085 ■APPLICATION NOTES The NJU7085 is high power (Po=400mW/ch typ.) and low operating voltage (2.8V to) stereo audio power amplifier with surround sound technology for cellular phones and portable equipments. The external coupling capacitors are not necessary because of the differential outputs. The closed loop gain is set 0 to 43dB by selecting the ratio of Ri to Rf. The NJU7085 contains 6-mode:Bypass mode (Input through), eala mode (stereo surround), eala Mobile mode (surround for narrow space speaker), STBY mode (IC is non-active), charge mode (Reference Voltage Charge mode), MUTE mode (Non output signal). The NJU7085 includes pop noise protection circuit eliminating noises during turn-on and turn-off transitions. 1.Notice 1.1 The NJU7085 may be not effective for a sound without the reverberation such as FM and monaural signal source. 1.2 eala Mobile mode may be not effective in the system that speaker distance is more than 20 cm. In this case, we recommend eala mode. 1.3 NJU7085 includes RF rectification canceling circuit, but please confirm it by an enough examination in your actual application. 2.Operation Outline Fig.1 shows the block diagram of NJU7085. It consists of eala surround block, power amp block, bias block, thermal shutdown block, control block. The surround effect can be adjusted with eala effect volume (external resister: R2). Two external resisters adjust the closed loop gain (Ri, Rf). The standby function contributes to low consumption by suspecting all circuits. Charge mode allows start time to shorten because of the external reference capacitor(C2) charged rapidly. By using external capacitors C2, C3, The NJU7085 reduces pop noise during turn-on and turn-off transitions. Please refer to captor 3 detail of Pop noise. C6=3.3nF R1=4.7kΩ C5= 22nF 100kΩ Ci=0.1uF PS NFLO R2=50kΩ NFLI Ri=20kΩ C7=3.3nF ROUT eala NFRI Rf=20kΩ RINP ROUT- RIN Rch RL eala Processor Block 100kΩ Ci=0.1uF ROUT+ LIN LOUT+ Lch V+ Bias Block RL Control Block LOUT- + GND C1= 10uF Vref C2= 1uF ealaTC DNC C3= R9= 0.1uF 100k Ω D2 D1 R8= 100kΩ Mode Control Fig.1 Block Diagram - 10 - D0 LOUT eala R3= 100kΩ LINP Ri=20kΩ Rf=20kΩ NJU7085 2.1External parts 2.1.1 power supply bypassing capacitor Select C1 which is enough good thermal characteristics and high frequency characteristics. The wiring pattern between C1 and IC should be shortened to prevent the generating of wiring resistance. 2.1.2 Input coupling capacitor The input impedance and input coupling capacitor (Ci) form a high pass filter which limits low frequency response. The input impedance is designed about 100kΩ. 2.1.3 Input resistance (Ri) and feedback resistance (Rf) of power amplifier. The closed loop gain is adjusted by Ri and Rf . It is given by the following equation. Gv=20LOG(2Rf/Ri) = 6 [dB] The closed loop gain should be set from 0dB to +43dB. 2.1.4Reference voltage bypassing capacitor Reference voltage bypassing capacitor (C2) affects PSRR (See Fig.2). 2.1.5 eala effect volume The surround effect is able to adjust with eala effect volume (R2). It is able to replace to fixed resister (R1+R2) if you select constant surround effect. 2.1.6 eala TC capacitor eala TC capacitor (C3) reduces pop noise at the time of changing the mode setting (Bypass⇔eala, Bypass⇔Mobile, eala ⇔Mobile). The pop noise becomes smaller with using large capacitor. 2.1.7 PS capacitor PS capacitor (C5) affects phase characteristics on eala Mobile mode. In case of canceling L/R sound, it is able to compensate with using small capacitor. 2.1.8 Control terminal (D0,D1,D2) resistance Control terminal resistances (R3, R8, R9) reduce pop noise at the time of changing mode control. 2.1.9 PSRR (Power Supply Rejection Ratio) vs. C2 Large bypassing capacitor (C2) improves PSRR shown in Fig.2. But a large input coupling capacitor requires more charge time to reach its quiescent DC voltage. Select C2 in consideration of PSRR and pop noise. PSRR vs. Frequency V+=3V,RL=4Ω,Ta=25OC,RIN=GND 70 60 PSRR[dB] 50 40 C2=0.47uF C2=1uF 30 C2=2.2uF 20 10 0 1.E+01 1.E+02 1.E+03 1.E+04 1.E+05 Frequency[Hz] Fig.2 PSRR vs. Frequency - 11 - NJU7085 2.2 Operation explanation 2.2.1 Bypass Mode Fig.2 shows the signal channel at bypass mode. Bypass eala LIN LOUT eala LINP LOUT+ Mobile L+R L‐ R eala,Mobile 3D SP FILTER Phase Shifter LOUT- Bypass MIN VR MAX ROUT- RIN ROUT eala RINP ROUT+ Fig.2 Bypass Mode 2.2.2 eala Mode Fig.3 shows the signal channel at eala mode. Bypass eala LIN LOUT eala LINP LOUT+ Mobile L+R L‐ R eala,Mobile 3D SP FILTER MIN Phase Shifter LOUT- Bypass VR MAX ROUT- RIN ROUT eala Fig.3 eala Mode - 12 - RINP ROUT+ NJU7085 2.2.3 ealaMobile Mode Fig.4 shows the signal channel at eala Mobile mode. Bypass eala LIN LOUT eala LINP LOUT+ Mobile L‐ R eala,Mobile 3D SP FILTER MIN Phase Shifter LOUT- Bypass VR MAX ROUT- RIN ROUT eala RINP ROUT+ Fig.4 Mobile Mode 3 Power ON/OFF and pop noise during turn-on and turn-off transitions. The NJU7085 reduces pop noise by using capacitor for charge & discharge. The following shows tips of reducing pop noise. 3.1 Power Supply ON/OFF Power ON/OFF should be changed on the STBY mode (D0,D1,D2=L,L,L) 3.2 STBY → Active (Bypass /eala /Mobile mode) The recommendation sequence is described as follows. STBY (L,L,L) → Charge (L,L,H) → MUTE (H,L,H) → each mode It should be provided the charge time of at least 50 msec for reducing pop noise under application circuit condition (C2=1µF). The charge time is given by the following equation. T = 5 x C2 x 100k [S] 3.3 Active (Bypass /eala /Mobile mode) → STBY The recommendation sequence is described as follows. Each mode → Mute (H,L,H) → STBY (L,L,L) - 13 - NJU7085 ■TYPICAL CHARACTERISTICS Reference Voltage vs. Operating Voltage Ta=25OC Reference Voltage vs. Ambient Temperature V+=3V 4 3 3.5 2.5 Reference Voltage[V] Reference Voltage[V] 3 2.5 2 1.5 1 2 1.5 1 0.5 0.5 0 0 1 2 3 4 5 Operating Voltage[V] 6 0 -50 7 Supply Current vs.Supply Voltage RL=OPEN、Ta=25OC -25 0 25 50 75 100 Operating Voltage[V] 125 150 Supply Current vs. Ambient Temperature V+=3V,Gv=6dB,RL=OPEN 12 5 4 8 Bypass,eala eala mobile,Mute 6 Supply Current[mA] Supply Crrent[mA] 10 4 3 Bypass,eala eala mobile,Mute 2 Charge 2 Charge 1 0 0 1 2 3 4 5 Supply Voltage[V] 6 7 0 -50 0 50 100 150 Ambient Temperature[OC] Supply Current vs. Supply Voltage (STBY mode) 1.E-03 6 1.E-04 5 Supply Current[mA] Supply Current[A] 1.E-05 1.E-06 1.E-07 Supply Current vs. Ambient Temperature (Thermal shutdow n) V+=3V,RL=OPEN 4 3 2 1.E-08 1 1.E-09 1.E-10 0 - 14 - 1 2 3 4 5 Supply Voltage[V] 6 7 0 140 150 160 170 180 Ambient Temperature[OC] 190 200 NJU7085 ■TYPICAL CHARACTERISTICS Supply Current vs Ambient Temperature(Shut dow n) V+=3V,RL=OPEN,VSD=0.25V 1.E-01 1.E+00 1.E-02 1.E-01 1.E-03 1.E-02 1.E-04 1.E-03 Supply Current[A] Supply Current[A] CNT Terminal Voltage vs. Supply Current(Ta) V+=3V,RL=OPEN 1.E-05 1.E-06 1.E-07 1.E-08 Ta=85OC 1.E-04 1.E-05 1.E-06 1.E-07 1.E-08 1.E-09 Ta=-25OC 1.E-10 1.E-11 1.E-09 1.E-10 O Ta=-40 C 1.E-11 -50 1.E-12 0 1 2 3 0 Vsd Terminal Voltage[V] 100 150 Maximum Input Voltage vs. Pow er Supply Voltage RL=4Ω,f=1kHz,THD=1%,Bypass Output Noise Voltage vs. Ambient Temperature V+=3V 、Rg=0Ω、Reff=4.7kΩ、Vout=Lch,A-w eighted 5 -80 mobile eala Maximum Input Voltage[dBV] -85 Output Noise Voltage[dBV] 50 Ambient Temperature[OC] -90 -95 Bypass -100 0 Lch -5 Rch -105 -110 -50 -10 -25 0 25 50 75 100 Ambient Temperature[OC] 125 150 2.5 3 5 5.5 Maximum Input Voltage vs. Pow er Supply Voltage RL=4Ω,f=100Hz,Reff=4.7kΩ,THD=1%,eala Maximum Input Voltage vs. Ambient Temperature V+=3V,RL=4Ω,f=100Hz,THD=1%,Bypass -10 0 -1 -12 Maximum Input Voltage[dBV] Maximum Input Voltage[dBV] 3.5 4 4.5 Pow er Supply Voltage[V] -2 Lch -3 -4 -5 Rch -6 -50 0 50 100 Ambient Temperature[OC] 150 Rch -14 Lch -16 -18 -20 2.5 3 3.5 4 4.5 Pow er Supply Voltage[V] 5 5.5 - 15 - NJU7085 ■TYPICAL CHARACTERISTICS Maximum Input Voltage vs. Pow er Supply Voltage RL=4Ω,f=100Hz,Reff=4.7kΩ,THD=1%,mobile Maximum Input Voltage vs. Ambient Temperature V+=3V,RL=4Ω,f=100Hz,THD=1%,eala -10 -16 Maximum Input Voltage[dBV] Maximum Input Voltage[dBV] -15 Rch -17 -18 Lch -19 -12 Rch -14 Lch -16 -18 -20 -20 -50 0 50 100 Ambient Temperature[OC] 2.5 150 Maximum Input Voltage vs. Ambient Temperature V+=3V,RL=4Ω,f=100Hz,THD=1%,mobile 3 3.5 4 4.5 Pow er Supply Voltage[V] 5 5.5 Phase vs, Frequency （ Ta) V+=3V,RL=4Ω,Vin=-20dBV, mobile 180 -15 90 Rch Ta=-40,25,85OC 45 Rch -17 Phase[deg] Maximum Input Voltage[dBV] 135 -16 -18 0 -45 Lch,Ta=-40,25OC -90 Lch -19 Lch,Ta=85OC -135 -180 -225 1.E+01 -20 -50 0 50 100 Ambient Temperature[OC] 150 10 THD+N[%] THD+N[%] 1.E+05 100 10 85OC 25OC 85OC 1 25OC 0.1 0.1 -40OC -40OC 1.E-02 1.E-01 Output Pow er[W] - 16 - 1.E+04 THD+N vs. Output Pow er V+=3V,Gv=6dB(PA),f=100Hz,RL=4Ω,Vout=Lch,eala 100 0.01 1.E-03 1.E+03 Frequency[Hz] THD+N vs. Output Pow er V+=3V,Gv=6dB(PA),f=1kHz,RL=4Ω,Vout=Lch,Bypass 1 1.E+02 1.E+00 1.E+01 0.01 1.E-03 1.E-02 1.E-01 Output Pow er[W] 1.E+00 1.E+01 NJU7085 ■TYPICAL CHARACTERISTICS THD+N vs. Output Pow er V+=5V,Gv=6dB(PA),f=1kHz,RL=8Ω,Vout=Lch,Bypass THD+N vs. Output Pow er V+=5V,Gv=12dB(PA),f=1kHz,RL=8Ω,Vout=Lch,Bypass 100 100 10 THD+N[%] THD+N[%] 10 85OC 1 25OC 0.1 85OC 1 25OC 0.1 -40OC 0.01 1.E-03 1.E-02 -40OC 1.E-01 1.E+00 Output Pow er[W] 0.01 1.E-03 1.E+01 100 100 10 10 85OC O 25 C 1 1.E-01 1.E+00 Output Pow er[W] 1.E+01 THD+N vs. Output Pow er V+=3V,Gv=12dB(PA),f=100Hz,RL=4Ω,Vout=Lch,eala THD+N[%] THD+N[%] THD+N vs. Output Pow er V+=3V,Gv=12dB(PA),f=1kHz,RL=4Ω,Vout=Lch,Bypass 1.E-02 0.1 85OC 1 25OC 0.1 O -40 C -40OC 0.01 1.E-03 1.E-02 1.E-01 1.E+00 0.01 1.E-03 1.E+01 1.E-02 Output Pow er[W] THD+N vs. Output Pow er V+=5V,Gv=6dB(PA),f=100Hz,RL=8Ω,Vout=Lch,eala 100 100 10 10 85OC 1 25OC 0.1 1.E+01 85OC 1 25OC 0.1 -40OC 0.01 1.E-03 1.E+00 THD+N vs. Output Pow er V+=5V,Gv=12dB(PA),f=100Hz,RL=8Ω,Vout=Lch,eala THD+N[%] THD+N[%] 1.E-01 Output Pow er[W] 1.E-02 1.E-01 Output Pow er[W] 1.E+00 1.E+01 0.01 1.E-03 -40OC 1.E-02 1.E-01 1.E+00 1.E+01 Output Pow er[W] - 17 - NJU7085 ■TYPICAL CHARACTERISTICS Voltage Gain vs. Frequency(Ta) V+=3V,RL=4Ω,Reff=4.7kΩ,Vout=Lch,eala Voltage Gain vs. Frequency(Ta) V+=3V,RL=4Ω,Vout=Lch,Bypass 25 8 Ta=-40OC Ta=25OC 20 Voltage Gain[dB] Voltage Gain[dB] 7 6 10 Ta=-40,25,85OC 5 4 1.E+01 1.E+02 1.E+03 Frequency[Hz] Ta=85OC 15 5 1.E+04 0 1.E+01 1.E+05 1.E+03 Frequency[Hz] 1.E+04 1.E+05 Voltage Gain vs. Frequency(Ta) V+=3V 、RL=4Ω、Reff=4.7kΩ、Vout=Lch、mobile Voltage Gain vs. Frequency(Ta) V+=3V,RL=4Ω,Reff=54.7kΩ,Vout=Lch,eala 25 25 Ta=-40OC Ta=25OC 20 Voltage Gain[dB] 20 Voltage Gain[dB] 1.E+02 15 Ta=-40OC Ta=25OC 10 15 Ta=85OC 10 5 5 Ta=85OC 0 1.E+01 1.E+02 1.E+03 Frequency[Hz] 1.E+04 0 1.E+01 1.E+05 1.E+02 1.E+03 Frequency[Hz] 1.E+04 1.E+05 PSRR vs. Frequency(Ta) V+=5V,RL=8Ω,RIN=GND,Vout=Lch,Bypass Voltage Gain vs. Frequency(Ta) V+=3V 、RL=4Ω、Reff=54.7kΩ、Vout=Lch、mobile 70 25 Ta=-40,25,85OC 60 20 PSRR[dB] Voltage Gain[dB] 50 15 Ta=-40OC Ta=25OC 40 30 10 20 5 10 Ta=85OC 0 1.E+01 - 18 - 0 1.E+01 1.E+02 1.E+03 Frequency[Hz] 1.E+04 1.E+05 1.E+02 1.E+03 Frequency[Hz] 1.E+04 1.E+05 NJU7085 ■TYPICAL CHARACTERISTICS Pow er Dissipation vs. Output Pow e V+=3V,Gv=6dB,f=1kHz,Ta=25OC,Vout=Lch,Bypass PSRR vs. Frequency(Ta) V+=3V,RL=4Ω,RIN=GND,Vout=Lch,Bypass 0.6 70 60 0.5 Ta=-40OC Power Dissipation[W] PSRR[dB] 50 40 Ta=25,85OC 30 20 0.4 RL=4Ω 0.3 0.2 RL=8Ω 0.1 10 0 1.E+01 0 1.E+02 1.E+03 1.E+04 1.E+05 0 0.2 Frequency[Hz] Pow er Dissipation vs. Output Pow er V+=5V,Gv=6dB,RL=8Ω,f=1kHz, Ta=25OC,Vout=Lch,Bypass 0.8 0.4 Output Pow er[W] 0.6 0.8 Output Pow er vs. Pow er Dissipation Gv=12dB(PA),f=1kHz,RL=8Ω,Ta=25OC,Bypass 1.8 1.6 0.7 1.4 Output Power[W] Power Dissipationj[W] 0.6 0.5 0.4 0.3 1.2 Lch,Rch： THD=10% 1 0.8 0.6 0.4 0.2 Lch,Rch： THD=1% 0.2 0.1 0 0 0 0 0.5 1 Output Pow er[W] 1 1.5 2 3 4 5 6 Pow er Dossipation[V] Output Pow er vs. Pow er Dissipation Gv=12dB(PA),f=1kHz,RL=4Ω,Ta=25℃,Bypass 1.2 100 Channel Separation vs. Frequency Rin→Lout V+=3V,Gv=6dB,RL=4Ω,,Bypass Reff=54.7ｋ Ω 80 Lch,Rch:THD=10% 0.8 Channel Separation[dB] Output Power[W] 1 0.6 0.4 Lch,Rch： THD=1% 60 Reff=4.7ｋ Ω 40 20 0.2 0 0 1 2 3 Pow er Dossipation[V] 4 5 0 1.E+00 1.E+01 1.E+02 1.E+03 1.E+04 1.E+05 Frequency[Hz] - 19 - NJU7085 ■TYPICAL CHARACTERISTICS 100 Channel Separation vs. Frequency Lin→Rout V+=3V,Gv=6dB,RL=4Ω,Bypass Channel Separation[dB] 80 60 Reff=54.7ｋ Ω Reff=4.7ｋ Ω 40 20 0 1.E+00 1.E+01 1.E+02 1.E+03 1.E+04 1.E+05 Frequency[Hz] [CAUTION] The specifications on this databook are only given for information , without any guarantee as regards either mistakes or omissions. The application circuits in this databook are described only to show representative usages of the product and not intended for the guarantee or permission of any right including the industrial rights. - 20 -
