CMH82 Datasheet, PDF (5/10 Pages) TriQuint Semiconductor – CMH82

Truth Table
Operating Mode
High Gain & Linearity
High Gain, Low Current
Low Gain (LNA bypass)
AMPS
CMH82
Control Voltage
Mode Ctl Gain Ctl Rcv Only
H
H
H
H
H
L
H
L
L
L
H
L
PIN Assignments & Functional Block Diagram
LNA
RFA
LOA
CDMA
IFA
AMPS
PIN
Symbol
Description
1
LO in
Mixer LO Input
2
GND
Ground
3
LO Vdd Supply voltage for LO Buffer Amp
4
Mix out Mixer output to IF Amplifier
5
AMPS in AMPS IF Amplifier input
6
CDMA in CDMA IF Amplifier input
7
GND
Ground
8
Ifa src
IF Amplifier FET source ground
9
CDMA out CDMA IF output
10
AMPS out AMPS IF output
11
Mode
AMPS or CDMA IF mode control
12
RFA in
Downconverter input from image filter
13
RFA Vdd Supply voltage for RFA
14
Vdd
Supply voltage
15
LNA Vdd Supply voltage for LNA
16
LNA out Output of LNA
17
GND
Ground
18
LNA in
RF Input to LNA
19
Rcv
Reduced current mode control
20
Gctl
Control voltage for LNA gain selection
CMH82 - Preliminary Datasheet (Rev 3nl, 1/02)
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