HMC625LP5 Datasheet, PDF (7/10 Pages) Hittite Microwave Corporation – 0.5 dB LSB GaAs MMIC 6-BIT DIGITAL VARIABLE GAIN AMPLIFIER, DC - 6 GHz

v01.0907
HMC625LP5 / 625LP5E
0.5 dB LSB GaAs MMIC 6-BIT DIGITAL
VARIABLE GAIN AMPLIFIER, DC - 6 GHz
Pin Descriptions
Pin Number
Function
1
AMPIN
Description
This pin is DC coupled.
An off chip DC blocking capacitor is required.
Interface Schematic
14
29
2, 3, 11, 13,
28, 30 - 32
4, 12
5 - 10
14
15, 16
18 - 23
24
25
27
17
AMPOUT
RF output and DC bias (Vcc) for the output stage of the
amplifier.
GND
These pins and package bottom
must be connected to RF/DC ground.
ATTIN,
ATTOUT
ACG1 - ACG6
SERIN
PUP2, PUP1
D5, D4, D3,
D2, D1, D0
P/S
CLK
LE
Vdd
These pins are DC coupled and matched to 50 Ohms.
Blocking capacitors are required. Select value based
on lowest frequency of operation.
External capacitors to ground is required. Select value for
lowest frequency of operation. Place capacitor as close to
pins as possible.
See truth table, control voltage
table and timing diagram.
Supply Voltage
26
SEROUT
Serial input data delayed by 6 clock cycles.
14 - 8
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