QPC3624 Datasheet, PDF (1/19 Pages) TriQuint Semiconductor – 47−2000 MHz Digital Step Attenuator

QPC3624
®
75Ω 47−2000 MHz Digital Step Attenuator
Product Overview
The QPC3624 is a 75Ω 6-bit digital step attenuator (DSA)
that features high linearity over the entire 31.5 dB gain
control range in 0.5 dB steps and has a low insertion loss
of 1.2 dB at 1 GHz. The QPC3624 features three modes of
control: serial, latched parallel, and direct parallel
programming. Patented circuit architecture provides
overshoot-free transient switching performance. The
QPC3624 is available in a 24-pad 4mm x 4mm x 0.90 mm
QFN package.
Functional Block Diagram
24 23 22 21 20 19
GND 1
18 SI
VDD 2
PBAR/S 3
LOGIC CONTROL
17 CLK
16 LE
GND 4
RFIN 5
GND 6
6-BIT DSA
15 GND
14 RFOUT
13 GND
7
8
9
10 11 12
Top View
24 Pad 4 x 4 mm QFN Package
Key Features
 6-Bit, 31.5 dB Range, 0.5 dB Step
 Patented Circuit Architecture
 Overshoot-free Transient Switching Performance
 Frequency Range 47 MHz to 2000 MHz
 High Linearity, IIP3 55dBm Typical
 Serial and Parallel Control Interface
 Fast Switching Speed, <250 nsec Typical
 RF Pads Have No DC Voltage, Can be DC Grounded
Externally
 Option to Turn Off Negative Voltage Generator and
Supply VSS Externally
 Power-up Default Setting Is Maximum Attenuation
Applications
 Optical Nodes
 Point-to-Point
 MDU Amplifiers
 Pre-amplifier Attenuation
 Inter-stage Attenuation
 Return Attenuation
 AGC
Data Sheet Rev.5, 7 Dec, 2016 | Subject to change without notice
Ordering Information
Part No.
QPC3624SQ
QPC3624SR
QPC3624TR13
QPC3624PCK
Description
Sample bag with 25 pieces
7" Reel with 100 pieces
13" Reel with 2500 pieces
47 – 2000 MHz PCBA with 5 pc. sample bag
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