RFDA2125 Datasheet, PDF (25/26 Pages) RF Micro Devices – Digital Controlled Variable Gain Amplifier 400MHz to 2700MHz, 6-Bit 0.5dB LSB Control

RFDA2125
rfmd.com
Pin #
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
Pin Name
SPI_CLK
SPI_PUP
GND
Vamp1
GND
GND
RF_IN
GNRD
GND
GND
GND
GND
GND
GND
GND
DSA_OUT
GND
GND
GND
GND
Amp2_IN
GND
GND
GND
RF_OUT
GND
VBIAS
VREF
GND
VDSA
SPI_LE
SPI_DATA
PIN Names and Descriptions:
Description
Serial clock input
Power-up programming pin
RF/DC Ground Connection
Supply voltage for amplifier 1
RF/DC Ground Connection
RF/DC Ground Connection
RF Input, AC coupled
RF/DC Ground Connection
RF/DC Ground Connection
RF/DC Ground Connection
RF/DC Ground Connection
RF/DC Ground Connection
RF/DC Ground Connection
RF/DC Ground Connection
RF/DC Ground Connection
Digital step attenuator output
RF/DC Ground Connection
RF/DC Ground Connection
RF/DC Ground Connection
RF/DC Ground Connection
RF input of amplifier 2
RF/DC Ground Connection
RF/DC Ground Connection
RF/DC Ground Connection
RF output, supply voltage for amplifier 2
RF/DC Ground Connection
Supply voltage for the active bias circuit
Control input to the active bias circuit to set ICQ. Can be used as a power-down pin
RF/DC Ground Connection
Supply voltage for digital step attenuator and SPI
Serial latch enable input
Serial data input
DS130326
7628 Thorndike Road, Greensboro, NC 27409-9421 ∙ For sales or technical
support, contact RFMD at ([phone] or [e-mail].
25 of 26