HMC742HFLP5E
v00.0211t
0.5 dB LSB GaAs MMIC 6-BIT DIGITAL
Designer’s Kit
Available
VARIABLE GAIN AMPLIFIER, 0.5 - 4 GHz
Typical Applications
The HMC742HFLP5E is ideal for:
• Cellular/3G Infrastructure
• WiBro / WiMAX / 4G
• Microwave Radio & VSAT
• Test Equipment and Sensors
• IF & RF Applications
12
Functional Diagram
Features
-19 to 12.5 dB Gain Control in 0.5 dB Steps
Power-up State Selection
High Output IP3: +39 dBm
TTL/CMOS Compatible
Serial, Parallel, or latched Parallel Control
±0.25 dB Typical Gain Step Error
Single +5V Supply
32 Lead 5x5mm SMT Package: 25mm2
General Description
The HMC742HFLP5E is a digitally controlled variable
gain amplifier which operates from 0.5 GHz to 4
GHz, and can be programmed to provide from -19
dB attenuation, to 12.5 dB of gain, in 0.5 dB steps.
The HMC742HFLP5E delivers noise figure of 4 dB
in its maximum gain state, with output IP3 of up to
+39 dBm in any state. The dual mode gain control
interface accepts either a three-wire serial input or a 6
bit parallel word. The HMC742HFLP5E also features a
user selectable power up state and a serial output for
cascading other serially controlled Hittite components.
The HMC742HFLP5E is housed in an RoHS compliant
5x5 mm QFN leadless package, and requires minimal
external components.
12 - 1
Electrical Specifications, TA = +25° C, 50 Ohm System Vdd = +5V, Vs= +5V
Parameter
Min.
Typ.
Max.
Min.
Typ.
Frequency Range
500 - 2700
2700-4000
Gain (Maximum Gain State)
12.5
9
Gain Control Range
31.5
31.5
Input Return Loss
14 12
Output Return Loss
10 12
Gain Accuracy: (Referenced to Maximum Gain State)
All Gain States
± (0.3 + 4% of relative gain setting) Max
Output Power for 1 dB Compression
Output Third Order Intercept Point
(Two-Tone Output Power= 12 dBm Each Tone)
Noise Figure (Max Gain State)
Switching Characteristics tRISE, tFall (10 / 90% RF)
tON, tOFF (Latch Enable to 10 / 90% RF)
Supply Current (Amplifier)
Supply Current (Controller) Idd
130
21 22
39 38
4 4.5
30 30
60 60
150 175 130 150
0.12 0.25
0.12
Max.
175
0.25
Units
MHz
dB
dB
dB
dB
dB
dBm
dBm
dB
ns
ns
mA
mA
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