For price, delivery, and to place orders, please contact Hittite Microwave Corporation:
20 Alpha Road, Chelmsford, MA 01824 Phone: 978-250-3343 Fax: 978-250-3373
Order On-line at www.hittite.com
13 - 1
VARIABLE GAIN AMPLIFIERS - ANALOG - SMT
13
HMC972LP5E
v00.1210
Functional Diagram
Electrical Specications, TA = +25° C, 50 Ohm System, Vdd = ATT1Vdd = ATT2Vdd = +5V [1]
The HMC972LP5E is ideal for:
• Cellular/3G Infrastructure
• WiBro / WiMAX / 4G
• Microwave Radio & VSAT
• Test Equipment and Sensors
• IF & RF Applications
Wide Gain Control Range: -35 to +15 dB
High Output IP3: +28 dBm
Positive Analog Control: 0 to +5V
Can be congured with 1 or 2 Attenuators
32 Lead 5x5 mm SMT Package: 25 mm2
The HMC972LP5E is an analog controlled variable
gain amplier composed of two identical voltage
variable attenuators in combination with an InGaP
HBT gain block MMIC amplier which operates
from 0.5 to 6 GHz, and can be controlled to provide
anywhere from 15 dB of gain to 35 dB of attenuation.
The HMC972LP5E delivers noise gure of 7.5 dB in
its maximum gain state, with output IP3 of up to
+28 dBm. The HMC972LP5E is housed in a RoHS
compliant 5x5 mm QFN leadless package, and requ-
ires no external matching components.
Parameter Frequency Min. Typ. Max. Units
Insertion Gain (Vctl = 0V)
0.5 - 2.7 GHz
2.7 - 4.0 GHz
4.0 - 6.0 GHz
10.5
6
13
9
0
dB
dB
Gain Control Range 0.5 - 4.0 GHz
4.0 - 6.0 GHz
50
42 dB
Input Return Loss (Vctl = 0V) 12 dB
Output Return Loss (Vctl = 0V) 10 dB
Output Power for 1dB Compression (Vctl = 0V)
0.5 - 2.7 GHz
2.7 - 4.0 GHz
4.0 - 6.0 GHz
16
13
6
dBm
dBm
Output Third Order Intercept Point
(Two-Tone Output Power= 0 dBm Each Tone) (Vctl = 0V)
0.5 - 2.7 GHz
2.7 - 4.0 GHz
4.0 - 6.0 GHz
29
26
20
dBm
dBm
Noise Figure (Vctl = 0V) 7.5 dB
Idd 75 85 102 mA
ATT1Idd 0.2 0.3 mA
ATT2Idd 0.2 0.3 mA
[1] Unless otherwise noted, test conditions: ATT1 + AMP + ATT2 in cascade.
Typical Applications Features
General Description
GaAs MMIC ANALOG VARIABLE
GAIN AMPLIFIER, 0.5 - 6.0 GHz
For price, delivery, and to place orders, please contact Hittite Microwave Corporation:
20 Alpha Road, Chelmsford, MA 01824 Phone: 978-250-3343 Fax: 978-250-3373
Order On-line at www.hittite.com
13 - 2
VARIABLE GAIN AMPLIFIERS - ANALOG - SMT
13
HMC972LP5E
v00.1210
GaAs MMIC ANALOG VARIABLE
GAIN AMPLIFIER, 0.5 - 6.0 GHz
Gain vs. Frequency Over Vctl [1]
-80
-70
-60
-50
-40
-30
-20
-10
0
10
20
0123456
0.0 V
1.0 V
1.6 V
2.0 V
2.6 V
3.4 V
GAIN (dB)
FREQUENCY (GHz)
-5
0
5
10
15
20
0123456
+25 C
+85 C
-40 C
GAIN (dB)
FREQUENCY (GHz)
-40
-30
-20
-10
0
10
20
0 1 2 3 4 5
+25 C
+85 C
-40 C
GAIN (dB)
Vctl (V)
-50
-40
-30
-20
-10
0
10
0 1 2 3 4 5
+25 C
+85 C
-40 C
GAIN (dB)
Vctl (V)
-40
-30
-20
-10
0
10
20
0 1 2 3 4 5
+25 C
+85 C
-40 C
GAIN (dB)
Vctl (V)
-50
-40
-30
-20
-10
0
10
0 1 2 3 4 5
+25 C
+85 C
-40 C
GAIN (dB)
Vctl (V)
[1] ATT1 + AMP + ATT2
Gain Over Temperature (Vctl = 0V) [1]
Gain vs. Vctl Over Temperature @ 0.5 GHz [1]
Gain vs. Vctl Over Temperature @ 4 GHz [1]
Gain vs. Vctl Over Temperature @ 2 GHz [1]
Gain vs. Vctl Over Temperature @ 6 GHz [1]
For price, delivery, and to place orders, please contact Hittite Microwave Corporation:
20 Alpha Road, Chelmsford, MA 01824 Phone: 978-250-3343 Fax: 978-250-3373
Order On-line at www.hittite.com
13 - 3
VARIABLE GAIN AMPLIFIERS - ANALOG - SMT
13
HMC972LP5E
v00.1210
GaAs MMIC ANALOG VARIABLE
GAIN AMPLIFIER, 0.5 - 6.0 GHz
Input Return Loss Over Vctl [1]
Output Return Loss Over Vctl [1]
-40
-30
-20
-10
0
0123456
0.0 V
1.0 V
2.0 V
3.0 V
RETURN LOSS (dB)
FREQUENCY (GHz)
-40
-30
-20
-10
0
0123456
0.0 V
1.0 V
2.0 V
3.0 V
RETURN LOSS (dB)
FREQUENCY (GHz)
-40
-30
-20
-10
0
0123456
+25C
+85C
-40C
RETURN LOSS (dB)
FREQUENCY (GHz)
-40
-30
-20
-10
0
0123456
+25C
+85C
-40C
RETURN LOSS (dB)
FREQUENCY (GHz)
-30
-20
-10
0
10
20
30
40
0123456
0.0 V
1.0 V
1.6 V
2.0 V
3.4 V
IP3 (dBm)
FREQUENCY (GHz)
0
10
20
30
40
0123456
+25 C
+85 C
-40 C
IP3 (dBm)
FREQUENCY (GHz)
Output IP3 vs. Vctl [1] Output IP3 vs. Temperature (Vctl = 0V) [1]
Input Return Loss Over
Temperature (Vctl = 0V) [1]
Output Return Loss Over
Temperature (Vctl = 0V) [1]
[1] ATT1 + AMP + ATT2
For price, delivery, and to place orders, please contact Hittite Microwave Corporation:
20 Alpha Road, Chelmsford, MA 01824 Phone: 978-250-3343 Fax: 978-250-3373
Order On-line at www.hittite.com
13 - 4
VARIABLE GAIN AMPLIFIERS - ANALOG - SMT
13
HMC972LP5E
v00.1210
GaAs MMIC ANALOG VARIABLE
GAIN AMPLIFIER, 0.5 - 6.0 GHz
Noise Figure Over Temperature
(Vctl = 0V) [1]
Output P1dB Over Temperature
(Vctl = 0V) [1]
0
5
10
15
0123456
+25 C
+85 C
-40 C
NF (dB)
FREQUENCY (GHz)
0
10
20
30
40
50
60
70
0123456
+25 C
+85 C
-40 C
IP2 (dBm)
FREQUENCY (GHz)
0
5
10
15
20
0123456
+25 C
+85 C
-40 C
P1dB (dBm)
FREQUENCY (GHz)
Output IP2 vs. Temperature (Vctl = 0V) [1]
[1] ATT1 + AMP + ATT2
Output IP2 vs. Vctl [1]
-40
-30
-20
-10
0
10
20
30
40
50
60
70
0123456
0.0 V
1.0 V
1.6 V
2.0 V
3.4 V
IP2 (dBm)
FREQUENCY (GHz)
For price, delivery, and to place orders, please contact Hittite Microwave Corporation:
20 Alpha Road, Chelmsford, MA 01824 Phone: 978-250-3343 Fax: 978-250-3373
Order On-line at www.hittite.com
13 - 5
VARIABLE GAIN AMPLIFIERS - ANALOG - SMT
13
HMC972LP5E
v00.1210
GaAs MMIC ANALOG VARIABLE
GAIN AMPLIFIER, 0.5 - 6.0 GHz
Insertion Loss vs. Vctl [2] Insertion Loss vs. Temperature [2]
Input Return Loss vs. Vctl [2]
Input IP3 vs. Temperature (Vctl = 0V) [2]
Output Return Loss vs. Vctl [2]
Input IP3 vs. Vctl [2]
-50
-40
-30
-20
-10
0
02468
0.0 V
1.0 V
1.6 V
2.0 V
2.6 V
3.4 V
ATTENUATION (dB)
FREQUENCY (GHz)
-40
-30
-20
-10
0
02468
0.0 V
1.0 V
2.0 V
3.0 V
RETURN LOSS (dB)
FREQUENCY (GHz)
10
20
30
40
50
60
0.5 1.5 2.5 3.5 4.5 5.5 6.5 7.5
0.0 V
1.0 V
1.6 V
2.0 V
2.6 V
3.4 V
IP3 (dBm)
FREQUENCY (GHz)
-15
-10
-5
0
0 1 2 3 4 5 6 7
+25 C
+85 C
-40 C
INSERTION LOSS (dB)
FREQUENCY (GHz)
-40
-30
-20
-10
0
02468
0.0 V
1.0 V
2.0 V
3.0 V
RETURN LOSS (dB)
FREQUENCY (GHz)
10
20
30
40
50
60
0.5 1.5 2.5 3.5 4.5 5.5 6.5 7.5
+25 C
+85 C
-40 C
IP3 (dBm)
FREQUENCY (GHz)
[2] ATT1 Only
For price, delivery, and to place orders, please contact Hittite Microwave Corporation:
20 Alpha Road, Chelmsford, MA 01824 Phone: 978-250-3343 Fax: 978-250-3373
Order On-line at www.hittite.com
13 - 6
VARIABLE GAIN AMPLIFIERS - ANALOG - SMT
13
Outline Drawing
HMC972LP5E
v00.1210
GaAs MMIC ANALOG VARIABLE
GAIN AMPLIFIER, 0.5 - 6.0 GHz
Absolute Maximum Ratings
RF Input Power +12 dBm
Supply Voltage 5.5 Vdc
Channel Temperature 150 °C
Continuous Pdiss (T = 85 °C)
(derate 8.5 mW/°C above 85 °C) [1] 0.55 W
Thermal Resistance
(Junction to Exposed Ground Paddle) 120 °C/W
Storage Temperature -65 to +150 °C
Operating Temperature -40 to +85 °C
ESD Sensitivity (HBM) Class 1A
ELECTROSTATIC SENSITIVE DEVICE
OBSERVE HANDLING PRECAUTIONS
Bias Voltage
Vdd (V) Idd (Typ.) (mA)
+5V 90
NOTES:
1. PACKAGE BODY MATERIAL: ALUMINA
2. LEAD AND GROUND PADDLE PLATING: 30-80 MICROINCHES GOLD OVER
50 MICROINCHES MINIMUM NICKEL.
3. DIMENSIONS ARE IN INCHES [MILLIMETERS].
4. LEAD SPACING TOLERANCE IS NON-CUMULATIVE
5. PACKAGE WARP SHALL NOT EXCEED 0.05mm DATUM -C-
6. ALL GROUND LEADS AND GROUND PADDLE MUST BE SOLDERED
TO PCB RF GROUND.
7. CLASSIFIED AS MOISTURE SENSITIVITY LEVEL (MSL) 1.
Part Number Package Body Material Lead Finish MSL Rating Package Marking [1]
HMC972LP5E RoHS-compliant Low Stress Injection Molded Plastic 100% matte Sn MSL1 [2] H972
XXXX
[1] 4-Digit lot number XXXX
[2] Max peak reow temperature of 260 °C
Package Information
For price, delivery, and to place orders, please contact Hittite Microwave Corporation:
20 Alpha Road, Chelmsford, MA 01824 Phone: 978-250-3343 Fax: 978-250-3373
Order On-line at www.hittite.com
13 - 7
VARIABLE GAIN AMPLIFIERS - ANALOG - SMT
13
HMC972LP5E
v00.1210
GaAs MMIC ANALOG VARIABLE
GAIN AMPLIFIER, 0.5 - 6.0 GHz
Pin Number Function Description Interface Schematic
1 - 11, 14, 17 - 20,
22, 23, 25, 27,
29, 30
N/C
No connection required. The pins are not connected internally;
however, all data shown herein was measured with these pins
connected to RF/DC ground externally.
12 ATT2OUT This port is matched to 50 Ohms.
Blocking capacitor required.
13 Vctl Attenuation control voltage for the attenuators.
0V for minimum attenuation, 5V for maximum attenuation.
15 ATT2VDD Power Supply for attenuator 2. External bypass
capacitor is required. See application circuit.
16 ATT2IN This port is matched to 50 Ohms. Blocking capacitor required.
Attenuator performance is similar to HMC973LP3E
21 AMPOUT
This port is matched to 50 Ohms. External Choke
inductor and DC blocking capacitor are required.
See application circuit.
24 GND This pin and the exposed ground paddle
must be connected to RF/DC ground.
26 AMPIN This port is matched to 50 Ohms. Blocking capacitor required.
Amplier performance is similar to HMC589ST89E.
28 ATT1OUT This port is matched to 50 Ohms.
Blocking capacitor required.
31 ATT1VDD Power supply for attenuator 1. External bias capacitor is
required. See application circuit.
32 ATT1IN This port is matched to 50 Ohms. Blocking capacitor required.
Attenuator performance is similar to HMC973LP3E
Pin Descriptions
For price, delivery, and to place orders, please contact Hittite Microwave Corporation:
20 Alpha Road, Chelmsford, MA 01824 Phone: 978-250-3343 Fax: 978-250-3373
Order On-line at www.hittite.com
13 - 8
VARIABLE GAIN AMPLIFIERS - ANALOG - SMT
13
Application Circuit
HMC972LP5E
v00.1210
GaAs MMIC ANALOG VARIABLE
GAIN AMPLIFIER, 0.5 - 6.0 GHz
For price, delivery, and to place orders, please contact Hittite Microwave Corporation:
20 Alpha Road, Chelmsford, MA 01824 Phone: 978-250-3343 Fax: 978-250-3373
Order On-line at www.hittite.com
13 - 9
VARIABLE GAIN AMPLIFIERS - ANALOG - SMT
13
Evaluation PCB
The circuit board used in the application should
use RF circuit design techniques. Signal lines sho-
uld have 50 Ohm impedance while the package
ground leads and exposed paddle should be con-
nected 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.
List of Materials for Evaluation PCB 130656 [1]
Item Description
J1 - J5 DC Connector Header
J6 - J11 PCB Mount SMA RF Connector
C1, C8, C9 10 nF Capacitor, 0402 Pkg
C2, C3, C7 1000 pF Capacitor, 0402 Pkg.
C4, C6 1000 pF Capacitor, 0603 Pkg.
C5 100 pF Capacitor, 0603 Pkg.
C12 2.2 µF Capacitor, CASE A Pkg.
L1 24 nH Inductor 0603 Pkg.
R1, R2 0 Ohm Resistor, 0402 Pkg.
R3 1.8 Ohm Resistor, 1206 Pkg.
U1 HMC972LP5E Variable Gain Amplier
PCB [2] 130653 Evaluation PCB
[1] Reference this number when ordering complete evaluation PCB
[2] Circuit Board Material: Rogers 4350
HMC972LP5E
v00.1210
GaAs MMIC ANALOG VARIABLE
GAIN AMPLIFIER, 0.5 - 6.0 GHz
For price, delivery, and to place orders, please contact Hittite Microwave Corporation:
20 Alpha Road, Chelmsford, MA 01824 Phone: 978-250-3343 Fax: 978-250-3373
Order On-line at www.hittite.com
13 - 10
VARIABLE GAIN AMPLIFIERS - ANALOG - SMT
13
Notes:
HMC972LP5E
v00.1210
GaAs MMIC ANALOG VARIABLE
GAIN AMPLIFIER, 0.5 - 6.0 GHz
