TAT8857 Datasheet, PDF (1/8 Pages) TriQuint Semiconductor – CATV Doubler – Hybrid RFIC

TAT8857
CATV Doubler – Hybrid RFIC
Applications
 CATV Line Amplifiers
 CATV System Amplifiers
 Distribution Nodes
 Green Applications
Product Features
 75 Ω, 40 – 1000 MHz Bandwidth
 GaAs pHEMT & MESFET Technology
 21 – 27 dB configurable gain
 Integrated linearization
 Flexible bias voltage and current for optimum
efficiency
 SOIC-16 Wide Package
General Description
The TAT8857 is a cost effective 75 Ω RFIC Amplifier
designed for use in Doubler CATV applications up to 1000
MHz. It works with readily available SMT baluns and
transformers to provide a highly flexible low cost
replacement for traditional hybrids.
Gain of the TAT8857 may be easily adjusted by varying
external components, allowing for a family of Doubler
solutions to be developed from a single RFIC.
The TAT8857 provides integrated linearization to improve
the 3^rd order distortion performance.
The TAT8857 may be protected against transient surges
with the TQP200002 and an output high pass filter
network. Consult TriQuint for discussion.
The TAT8857 supports traditional 24 V and 12 V supply
voltages. Bias current may be adjusted to suit particular
requirements with standard or active biasing approaches.
Consult TriQuint for further discussion.
SOIC-16 Wide Package
Functional Block Diagram
Pin Configuration
Pin #
1
2
3
4
5
6
7
8
9
Symbol
OUT 1A
LIN ADJ A
IN 1A
BIAS 1A
BIAS 1B
IN 1B
LIN ADJ B
OUT 1B
BIAS 2B
Pin #
10
11
12
13
14
15
16
17
Symbol
IN 2B
OUT 2B
GATE B
GATE A
OUT 2A
IN 2A
BIAS 2A
GND
Data Sheet: Rev C 06-05-12
© 2012 TriQuint Semiconductor, Inc.
Ordering Information
Part No. Description
TAT8857
RFIC
TAT8857-EB evaluation board
Standard T/R size = 1000 pieces on a 7” reel.
- 1 of 8 -
Disclaimer: Subject to change without notice
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