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