4 - 5
Pin Port
Description
number name
2, 3
10
11
14
15
22
23
T1, T2
T3
VOLOUT
DTC
FC
DEV
SQLIN
Output tunable bandpass filter control
signals.
• Outputs tunable bandpass filter con-
trol signal while receiving.
• Outputs TX power control signal
while transmitting.
Outputs AF volume control signal.
Outputs DTCS’s gradient control sig-
nal.
Outputs reference frequency control
signal to X1.
Outputs transmit devetion control sig-
nal.
Outputs squelch control signal.
4-6-2 D/A CONVERTOR IC (IC10)