RFSA2624_12 Datasheet, PDF (6/9 Pages) RF Micro Devices – SERIAL CONTROLLED DIGITAL STEP ATTENUATOR 50MHz to 4000MHz, 6-BIT, 0.5dB

RFSA2624
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
EPAD
Name
GND
VDD
GND
RF1
GND
ACG
ACG
ACG
ACG
ACG
ACG
GND
ACG
GND
RF2
GND
GND
GND
NC
PUP
CLK
LE
NC
DATA
GND
Pin Names and Description
Description
DC and RF Ground.
Power supply.
DC and RF Ground.
RF port. External DC block required.
DC and RF Ground.
AC ground for operation below 500MHz; leave unconnected above 500MHz.
AC ground for operation below 500MHz; leave unconnected above 500MHz.
AC ground for operation below 500MHz; leave unconnected above 500MHz.
AC ground for operation below 500MHz; leave unconnected above 500MHz.
AC ground for operation below 500MHz; leave unconnected above 500MHz.
AC ground for operation below 500MHz; leave unconnected above 500MHz.
DC and RF Ground.
AC ground for operation below 500MHz; leave unconnected above 500MHz.
DC and RF Ground.
RF port. External DC block required.
DC and RF Ground.
DC and RF Ground.
DC and RF Ground.
No internal connection. EVB can be ground or no connect.
Power-up Programming pin. Low=max attenuation (31.5dB) at power-up, High=min attenuation (0dB) at power-up.
Serial Clock.
Latch Enable.
No internal connection. EVB can be ground or no connect.
Serial Data.
DC and RF ground. Must be soldered to EVB ground plane over a bed of vias for thermal and RF performance.
Power-up Programming Truth Table
PUP
Attenuator Setting
Low
Attenuation at max, 31.5dB
High
Attenuation at min, 0dB
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DS110706