RFDA0025 Datasheet, PDF (8/11 Pages) RF Micro Devices – DIGITAL CONTROLLED VARIABLE GAIN AMPLIFIER

RFDA0025
Pin Names and Description
Pin
Function Description
1
AMPIN
Amplifier Input. DC Block Required.
2
GND
RF/DC Ground Connection.
3
GND
RF/DC Ground Connection.
4
ATTOUT
Digital Attenuator Output. DC Block Required.
5
ACG1
External bypass capacitor required for F < 500MHz (impacts step error).
6
ACG2
External bypass capacitor required for F < 500MHz (impacts step error).
7
ACG3
External bypass capacitor required for F < 500MHz (impacts step error).
8
ACG4
External bypass capacitor required for F < 500MHz (impacts step error).
9
ACG5
External bypass capacitor required for F < 500MHz (impacts step error).
10
ACG6
External bypass capacitor required for F < 500MHz (impacts step error).
11
GND
RF/DC Ground Connection.
12
ATTIN
Digital Attenuator Input. DC Block Required.
13
GND
RF/DC Ground Connection.
14
NC
No Internal Connection.
15
PUP
Power-up Programming Pin. Low=Max Attenuation at Power-up (-31.5dB). High=Min Attenuation at Power-up
(0 dB).
16
NC
No Internal Connection.
17
VDD
Digital Attenuator Supply Voltage.
18
NC
No Internal Connection.
19
NC
No Internal Connection.
20
NC
No Internal Connection.
21
NC
No Internal Connection.
22
NC
No Internal Connection.
23
NC
No Internal Connection.
24
NC
No Internal Connection.
25
CLK
Serial Clock.
26
DATA
Serial Data.
27
LE
Latch Enable.
28
GND
RF/DC Ground Connection.
29 AMPOUT/VCC ^{Amplifier Output and Bias. External Choke, Bypassing, and DC Blocks Required.}
30
GND
RF/DC Ground Connection.
31
GND
RF/DC Ground Connection.
32
GND
RF/DC Ground Connection.
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