PT6808 Service Manual
79-86
D0-D7
-
Flash memory data bus
87
DTMDAT
I
DTMF decoding IC data input
88
PF
I
PF key input
89
VOL
I
Volume level input
90
BATT
I
Battery voltage input
91
ANLSQL
I
Squelch circuit level input
92
TEMP
I
Thermal resistor input
93 RSSI
I
RSSI
input
94 AVSS
-
GND
95
LSDIN
I
Low speed data input
96 VREF
-
+5V
97 AVCC
-
+5V
98
AFMUTE
O
Shift register data gate output
99
W/N
O
Wide/narrow band input
100 DCSWITCH
IC14 Pin data
Pin
Descriptions
1 CLOCK
Serial
clock
input
2 DATA
Serial
data
input
3 STROBE Serial
gate
input
4 Vss
Digital
grounded
5
RFin
Pre-scaler anode input
6
RFin
Pre-scaler cathode input
7
Vccp
Power supply by pre-scaler anode. This pin
supplies power to pre-scaler and RF input buffer.
8 REFin
reference
divider
input
9
RA
Assistant current set; resistance used for Vssa
10 AUXin
Assistant
divider
input
11
PHA
Assistant phase comparator output
12 Vssa
Analog
grounded
13
PHI
General phase tester output
14 PHP
Equilibrium
phase
tester
output