Power Amplifiers N903 & N960 - Nokia NSW-6 Series Disassembly & Troubleshooting Instructions

NSW-6
Disassembly & Troubleshooting
Power Amplifiers N903 & N960
RF9130 (N903)
Pin no. Pin name
1 VCC
2 L TUNE
3 GND
4 VCC1
5 GND1
6 RF IN
7 N/C
8 V
reg
9 GND
10 GND
11 GND
12 RF OUT
13 RF OUT
14 2 * f
0
15 GND
16 V
bias
Package Ground
Base
RF9131 (N960)
Pin no. Pin name
1 N/C
2 VCC
Q2C
3 N/C
4 VCC
Q1C
5 N/C
6 RF IN
7 N/C
8 VREG
9 BIAS3
10 N/C
11 N/C
12 RF OUT
13 RF OUT
14 RF OUT
Page 48
Power supply pin for bias circuit. Add RF bypass capacitor.
Tuning pin for interstage matching network. A short (TBD)
transmission line length is required for tuning interstage
match.
Ground
Power supply pin for the first stage collector. A RF choke and
a bypass capacitor is required for this pin.
Ground pin for the first stage.
RF input. DC coupled.
No connection or GND
Regulated power supply for bias circuit. PA shut down.
Ground
Ground
Ground
RF output and bias for the output stage.The power supply for
the output transistor needs to be supplied to this pin.
Same as pin 12.
Second harmonic trap. Add capacitor to ground.
Ground
Bias control 2.8V. Add RF bypass capacitor.
Ground connection. The backside of the package should be
connected to the ground plane through a short path.
No connection. (GND)
Power supply pin for the 2. stage. A bypass capacitor is re-
quired.
No connection. (GND)
Power supply pin for the 1st stage. A bypass capacitor is re-
quired.
No connection. (GND)
RF input. DC block on chip.
No connection. (GND)
Regulated voltage supply for the bias circuit.
Bias ground.
No connection. (GND)
No connection. (GND)
RF output, Use this pin for an output matching capacitor. Do
not feed bias through this pin. (DC coupled)
RF output and bias for the output stage. 3rd stage collector.
RF output and bias for the output stage. 3rd stage collector.
E Nokia Mobile Phones Ltd.
PAMS Technical Documentation
Description
Description
Issue 1 12/99