Receiver Front Ends; Mmic Power Amplifiers - Nokia NSC/W–1/3 Series Disassembly & Troubleshooting Instructions

NSC/W–1/3
Disassembly & Troubleshooting Instructions

Receiver front ends

Pin # Pin name
nal lev-
1 LO IN
2 Vdd buf
3 LO out
4 GND
5 Vdd LNA
6 GND
7 LNA in
8 GND
9 Gain sel
10 LNA out
11 GND
12 Mxr RF
13 GND
14 MXR IF
15 GND
16 Vdd MXR

MMIC Power Amplifiers

Pin # Pin name
nal lev-
1 Vcc
2 N/C
3 LTune
4 Vcc1
5 GND1
6 RF IN
7 N/C
8 Vreg
9 N/C
10 N/C
11 N/C
12 RF OUT
13 RF OUT
14 2*fo
15 N/C
16 Vbias
Pack- Ground
age
Base
Page 42
Nomi-
el
?
2.8V
0
2.8V
0
?
0
0
?
0
?
0
? Mixer lo–buffer Vdd and lo–buffer tuning
Nomi-
el
VBAT Power supply for bias circuit
–
? Tuning pin for interstage matching network
VBAT Power supply for the 1st stage collector
–
–
2.8V Regulated power supply for bias circuit. PA shut
? RF output and bias for output stage
? RF output and bias for output stage
?
–
– Ground connection. The backside of the pack-
age must be connected to the ground plane
Technical Documentation
Description
Mixer lo input
Lo–buffer Vdd
Lo–buffer output
ground
LNA Vdd
ground
LNA RF input port
LNA ground
LNA gain select
LNA output port
ground
Mixer RF input port
ground
Mixer IF input port
ground
Description
N960
Not connected
Ground
RF input
Not connected
down
Not connected
Not connected
Not connected
Second harmonic trap
Not connected
Bias control 2.8V
throught a short path
PAMS
Original 11/99