Tdma 1900 Pll N880 - Nokia NSW-5 Series Service Manual

NSW-5
Disassembly and Troubleshooting Instructions
Pin no. Pin name Nominal
12 VDD3
13 GND
14 IF IN
15 N/C
16 TX ENA

TDMA 1900 PLL N880

Pin no. Pin name Nominal
1 FAST
2 CPF
3 CP
4 VDD2
5 Vss3
6 RFI
7 Vss2
8 POL
9 PON
10 Vss1
11 CLK
12 DATA
13 E
14 Vdd1
15 XTALB
16 XTALA
17 GND(CP)
18 Vcc
19 Iset
20 LOCK
Page 54
level
2.8V
0
– Intermediate frequency input
>2V
level
2.8V Enable input for fast chargepump
Fast charge pump output
Normal charge pump output
2.8V
0
?
0
2.8V
2.8V
0
? Programming bus clock input
? Programming bus data input
? Programming bus enable input
–
– Complementary crystal frequency input
– Complementary crystal frequency input
0 Ground for charge pump
4.8V Supply voltage for charge pump
– charge pump currents setting
–
E Nokia Mobile Phones Ltd.
PAMS Technical Documentation
Description
Supply voltage
Ground
Not connected
TX enable
Description
Power supply voltage
Ground
Main divider input
Ground
polarity select
Power on input
Ground
Power supply voltage
Out of lock detector
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