Tdma1900 Pll-Circuit N870 - Nokia NSW-6 Series Disassembly & Troubleshooting Instructions

NSW-6
Disassembly & Troubleshooting
TDMA1900 PLL–circuit N870
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
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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
2.8V Programming bus clock input
2.8V Programming bus data input
2.8V Programming bus enable input
2.8V
– 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
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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