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HMC694LP4 / 694LP4E
v02.1108
GaAs MMIC ANALOG VARIABLE
GAIN AMPLIFIER, 6 - 17 GHz
Typical Applications
Features
The HMC694LP4(E) is ideal for:
Wide Gain Control Range: 23 dB
• Point-to-Point Radio
Single Control Voltage
• Point-to-Multi-Point Radio
Output IP3 @ Max Gain: +30 dBm
• EW & ECM
Output P1dB: +22 dBm
No External Matching
• X-Band Radar
24 Lead 4x4 mm SMT Package: 16 mm2
• Test Equipment
General Description
Functional Diagram
The HMC694LP4(E) is a GaAs MMIC PHEMT analog
variable gain amplifier which operates between 6 and
17 GHz. Ideal for microwave radio applications, the
amplifier provides up to 22 dB of gain, output P1 dB
of up to +22 dBm, and up to +30 dBm of output IP3
at maximum gain, while requiring only 175 mA from
a +5V supply. A gate bias pin (Vctrl) is provided to
allow variable gain control up to 23 dB. Gain flatness
is excellent making the HMC694LP4E ideal for EW,
ECM and radar applications. The HMC694LP4E is
housed in a RoHS compliant 4x4 mm QFN leadless
package and is compatible with high volume surface
mount manufacturing.
Variable gain amplifiers - ANALOG - SMT
12
12 - 1
Electrical Specifications, TA = +25°C, Vdd1, 2, 3= 5V, Vctrl= -2V, Idd= 170 mA*
Parameter
Min.
Frequency Range
Gain
Typ.
Max.
Min.
6 - 10
19
Gain Flatness
Gain Variation Over Temperature
Typ.
Max.
Units
10 - 17
GHz
18
dB
±1
±1.5
dB
dB/ °C
22
14
0.015
0.015
Gain Control Range
23
20
Noise Figure
6
Input Return Loss
15
8
Output Return Loss
10
8
dB
22
dBm
Output Power for 1 dB Compression (P1dB)
19
21
7.5
6
21
dB
6.5
dB
dB
Saturated Output Power (Psat)
22
23
dBm
Output Third Order Intercept (IP3)
30
30
dBm
Total Supply Current (Idd)
175
175
mA
*Set Vctrl = -2V and then adjust Vgg1, 2 between -2V to 0V (typ. -0.8V) to achieve Idd = 170mA typical.
For price, delivery and to place orders: Hittite Microwave Corporation, 20 Alpha Road, Chelmsford, MA 01824
Phone: 978-250-3343
Fax: 978-250-3373
Order On-line at www.hittite.com
Application Support: Phone: 978-250-3343 or apps@hittite.com
HMC694LP4 / 694LP4E
v02.1108
GaAs MMIC ANALOG VARIABLE
GAIN AMPLIFIER, 6 - 17 GHz
Control Voltage Range vs. Gain
25
Gain vs. Control Voltage
25
Vctl = -2.0V
10 GHz
Vctl = -1.3V
20
20
Vctl = -1.2V
15
GAIN (dB)
GAIN (dB)
15
Vctl = -1.1V
10
Vctl = -1.0V
6 GHz
17 GHz
10
5
5
0
0
13 GHz
Vctl = -0.8V
Vctl = 0V
5
7
9
11
13
15
17
-5
-1.6
19
-1.4
FREQUENCY (GHz)
30
30
20
25
-0.6
-0.4
12
15
-10
10
-20
5
-30
+25C
+85C
-40C
0
4
6
8
10
12
14
16
18
20
22
24
26
6
8
FREQUENCY (GHz)
12
14
16
18
Output Return Loss vs. Temperature
0
-5
-5
RETURN LOSS (dB)
0
-10
-15
+25C
+85C
-40C
-20
10
FREQUENCY (GHz)
Input Return Loss vs. Temperature
RETURN LOSS (dB)
-0.8
20
S21
S11
S22
0
-1
Gain vs. Temperature
GAIN (dB)
RESPONSE (dB)
Broadband Gain & Return Loss
10
-1.2
CONTROL VOLTAGE (V)
-25
-10
-15
+25C
+85C
-40C
-20
-25
-30
-30
6
8
10
12
14
FREQUENCY (GHz)
16
18
6
8
10
12
14
16
18
FREQUENCY (GHz)
For price, delivery and to place orders: Hittite Microwave Corporation, 20 Alpha Road, Chelmsford, MA 01824
Phone: 978-250-3343
Fax: 978-250-3373
Order On-line at www.hittite.com
Application Support: Phone: 978-250-3343 or apps@hittite.com
variable gain amplifiers - ANALOG - SMT
-5
12 - 2
HMC694LP4 / 694LP4E
v02.1108
GaAs MMIC ANALOG VARIABLE
GAIN AMPLIFIER, 6 - 17 GHz
Output Return Loss @ Voltage Extreme
0
0
-5
-5
RETURN LOSS (dB)
RETURN LOSS (dB)
Return Loss @ Voltage Extreme
-10
-15
-2V
0V
-20
-25
-2V
0V
-20
-30
6
8
10
12
12
14
16
18
6
8
10
FREQUENCY (GHz)
14
16
18
Noise Figure vs. CTRL
22
10
6 GHz
20
NOISE FIGURE (dB)
8
NOISE FIGURE (dB)
12
FREQUENCY (GHz)
Noise Figure vs. Temperature
6
4
+25C
+85C
-40C
2
17 GHz
18
14 GHz
16
14
12
10
(6, 8, 10, 12, 14, 17) GHz
6 GHz
8
6
6
8
10
12
14
16
17 GHz
4
-1.6
0
18
-1.4
-1.2
-1
-0.8
-0.6
-0.4
CONTROL VOLTAGE (V)
FREQUENCY (GHz)
P1dB vs. Temperature
Psat vs. Temperature
28
28
24
24
20
20
Vctrl = -2V
Psat (dBm)
P1dB (dBm)
Variable gain amplifiers - ANALOG - SMT
-15
-25
-30
12 - 3
-10
16
Vctrl = 0V
12
8
Vctrl = -2V
16
12
Vctrl = 0V
8
+25C
+85C
-40C
4
+25C
+85C
-40C
4
0
0
4
6
8
10
12
14
16
18
FREQUENCY (GHz)
4
6
8
10
12
14
16
18
FREQUENCY (GHz)
[1] Tested with broadband bias tee on RF ports and C1 = 10,000pF
[2] C1, C6 and C8 = 100pF, L1 = 24nF
For price, delivery and to place orders: Hittite Microwave Corporation, 20 Alpha Road, Chelmsford, MA 01824
Phone: 978-250-3343
Fax: 978-250-3373
Order On-line at www.hittite.com
Application Support: Phone: 978-250-3343 or apps@hittite.com
HMC694LP4 / 694LP4E
v02.1108
GaAs MMIC ANALOG VARIABLE
GAIN AMPLIFIER, 6 - 17 GHz
Reverse Isolation vs. Temperature
Output IP3 vs. Temperature
34
30
-40
+25C
+85C
-40C
-50
26
IP3 (dBm)
-60
Vctrl = -2V, Pout = 15dBm
22
Vctrl = 0V, Pout = 8dBm
18
-70
+25C
+85C
-40C
14
-80
10
6
8
10
12
14
16
18
4
6
8
10
12
14
FREQUENCY (GHz)
FREQUENCY (GHz)
Output IP3 @ 0 dBm
16
18
12
Output IP3 @ 5 dBm
28
28
26
26
22
22
20
IP3 (dBm)
24
7 GHz
18
12 GHz
16
12 GHz
20
18
7 GHz
16
16 GHz
14
12
-0.8
14
-0.6
-0.4
-0.2
12
-1.2
0
-1
CONTROL VOLTAGE (V)
-0.8
-0.6
-0.4
-0.2
0
CONTROL VOLTAGE (V)
Output IP3 @ 10 dBm
30
7 GHz
28
26
IP3 (dBm)
IP3 (dBm)
16 GHz
24
12 GHz
24
22
20
16 GHz
18
16
-2
-1.8
-1.6
-1.4
-1.2
-1
-0.8
-0.6
CONTROL VOLTAGE (V)
For price, delivery and to place orders: Hittite Microwave Corporation, 20 Alpha Road, Chelmsford, MA 01824
Phone: 978-250-3343
Fax: 978-250-3373
Order On-line at www.hittite.com
Application Support: Phone: 978-250-3343 or apps@hittite.com
variable gain amplifiers - ANALOG - SMT
REVERSE ISOLATION (dB)
-30
12 - 4
HMC694LP4 / 694LP4E
v02.1108
GaAs MMIC ANALOG VARIABLE
GAIN AMPLIFIER, 6 - 17 GHz
Absolute Maximum Ratings
Drain Bias Voltage (Vdd1, 2, 3)
Bias Voltage
+5.5V
Vdd1,2,3 (V)
Idd Total (mA)
170
Gate Bias Voltage (Vgg1, 2)
-3 to 0V
+5.0
Gain Control Voltage (Vctrl)
-3 to 0V
Vgg1,2 (V)
Igg Total (mA)
RF Power Input
+5 dBm
0V to -2V
<3 µA
Channel Temperature
175 °C
Continuous Pdiss (T = 85 °C)
(derate 10.2 mW/°C above 85 °C) [1]
0.92 W
Thermal Resistance
(Channel to ground paddle)
97.6 °C/W
Storage Temperature
-65 to +150 °C
Operating Temperature
-40 to +85 °C
ELECTROSTATIC SENSITIVE DEVICE
OBSERVE HANDLING PRECAUTIONS
Variable gain amplifiers - ANALOG - SMT
12
12 - 5
Outline Drawing
NOTES:
1. LEADFRAME MATERIAL: COPPER ALLOY
2. DIMENSIONS ARE IN INCHES [MILLIMETERS]
3. LEAD SPACING TOLERANCE IS NON-CUMULATIVE.
4. PAD BURR LENGTH SHALL BE 0.15mm MAXIMUM.
PAD BURR HEIGHT SHALL BE 0.05mm MAXIMUM.
5. PACKAGE WARP SHALL NOT EXCEED 0.05mm.
6. ALL GROUND LEADS AND GROUND PADDLE MUST BE
SOLDERED TO PCB RF GROUND.
7. REFER TO HITTITE APPLICATION NOTE FOR SUGGESTED
LAND PATTERN.
Package Information
Part Number
Package Body Material
Lead Finish
MSL Rating
HMC694LP4
Low Stress Injection Molded Plastic
Sn/Pb Solder
MSL1
[1]
HMC694LP4E
RoHS-compliant Low Stress Injection Molded Plastic
100% matte Sn
MSL1
[2]
Package Marking [3]
H694
XXXX
H694
XXXX
[1] Max peak reflow temperature of 235 °C
[2] Max peak reflow temperature of 260 °C
[3] 4-Digit lot number XXXX
For price, delivery and to place orders: Hittite Microwave Corporation, 20 Alpha Road, Chelmsford, MA 01824
Phone: 978-250-3343
Fax: 978-250-3373
Order On-line at www.hittite.com
Application Support: Phone: 978-250-3343 or apps@hittite.com
HMC694LP4 / 694LP4E
v02.1108
GaAs MMIC ANALOG VARIABLE
GAIN AMPLIFIER, 6 - 17 GHz
Pin Descriptions
Function
Description
N/C
No Connection
3, 5, 14, 16
GND
Die bottom must be connected to RF/DC ground.
4
RFIN
This pad is AC coupled
and matched to 50 Ohm.
7, 12
Vgg1, 2
Gate control for amplifier. Adjust voltage to achieve typical
Idd. Please follow “MMIC Amplifier Biasing Procedure”
application note.
9
Vctrl
Gain control Voltage for the amplifier. See assembly
diagram for required external components.
15
RFOUT
This pad is AC coupled
and matched to 50 Ohm.
19, 22, 24
Vdd1, 2, 3
Drain Bias Voltage for the amplifier. See assembly diagram for
required external components
Interface Schematic
For price, delivery and to place orders: Hittite Microwave Corporation, 20 Alpha Road, Chelmsford, MA 01824
Phone: 978-250-3343
Fax: 978-250-3373
Order On-line at www.hittite.com
Application Support: Phone: 978-250-3343 or apps@hittite.com
12
variable gain amplifiers - ANALOG - SMT
Pad Number
1, 2, 6, 8, 10,
11, 13, 17, 18,
20, 21, 23
12 - 6
HMC694LP4 / 694LP4E
v02.1108
GaAs MMIC ANALOG VARIABLE
GAIN AMPLIFIER, 6 - 17 GHz
Application Circuit
Variable gain amplifiers - ANALOG - SMT
12
12 - 7
For price, delivery and to place orders: Hittite Microwave Corporation, 20 Alpha Road, Chelmsford, MA 01824
Phone: 978-250-3343
Fax: 978-250-3373
Order On-line at www.hittite.com
Application Support: Phone: 978-250-3343 or apps@hittite.com
HMC694LP4 / 694LP4E
v02.1108
GaAs MMIC ANALOG VARIABLE
GAIN AMPLIFIER, 6 - 17 GHz
Evaluation PCB
List of Materials for Evaluation PCB 122174 [1]
Item
Description
J1, J2
PCB Mount SMA RF Connectors
J3 - J9
DC Pin
C1 - C6
100 pF Capacitor, 0402 Pkg.
C7 - C12
1000 pF Capacitor, 0603 Pkg.
C13 - C18
2.2 µF Capacitor, CASE A
U1
HMC694LP4(E) Variable Gain Amplifier
PCB [2]
122172 Evaluation PCB
[1] Reference this number when ordering complete evaluation PCB
The circuit board used in the application should use
RF circuit design techniques. Signal lines should
have 50 Ohm impedance while the package ground
leads and exposed paddle should be connected
directly to the ground plane similar to that shown.
A sufficient number of via holes should be used to
connect the top and bottom ground planes. The
evaluation circuit board shown is available from Hittite upon request.
[2] Circuit Board Material: Arlon 25FR
For price, delivery and to place orders: Hittite Microwave Corporation, 20 Alpha Road, Chelmsford, MA 01824
Phone: 978-250-3343
Fax: 978-250-3373
Order On-line at www.hittite.com
Application Support: Phone: 978-250-3343 or apps@hittite.com
variable gain amplifiers - ANALOG - SMT
12
12 - 8