RFSA2644 Datasheet, PDF (9/12 Pages) RF Micro Devices – SERIAL CONTROLLED DIGITAL STEP ATTENUATOR 50MHz TO 4000MHz, 6-BIT, 0.5dB LSB

RFSA2644
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
GND
GND
GND
GND
GND
GND
GND
GND
GND
RF2
GND
GND
GND
NC
PUP
CLK
LE
NC
DATA
GND
Pin Names and Descriptions
Description
Connect to Low Inductance Path to Ground.
Power Supply.
Connect to Low Inductance Path to Ground.
RF Port; External DC Block Required.
Connect to Low Inductance Path to Ground.
Connect to Low Inductance Path to Ground.
Connect to Low Inductance Path to Ground.
Connect to Low Inductance Path to Ground.
Connect to Low Inductance Path to Ground.
Connect to Low Inductance Path to Ground.
Connect to Low Inductance Path to Ground.
Connect to Low Inductance Path to Ground.
Connect to Low Inductance Path to Ground.
Connect to Low Inductance Path to Ground.
RF Port; External DC Block Required.
Connect to Low Inductance Path to Ground.
Connect to Low Inductance Path to Ground.
Connect to Low Inductance Path to 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.
DS120706
7628 Thorndike Road, Greensboro, NC 27409-9421 · For sales or technical
support, contact RFMD at ([phone] or [e-mail].
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