Alinco DR-61 OT/E, Service Manual

Page: 29 / 89

18) TC35219F (XA0282)
DTMF Transmitter
Function Table
No. Pin Name Description
VDD Power Supply
5 VSS GND terminal
2 -TD Output mode selection input terminal
8 MUTE Mute output terminal
14 TONE Tone output terminal
6 OSCOUT Oscillator terminal
7 OSCIN Oscillator terminal
'i•j
CONT1
o i n y i e t u n e u u i p u i S e ifcx-u u n ie fi t iii itii
4 CONT2 Single tone output selection terminal
12 DATAI Data input terminal
11 DATA2 Data input terminal
10 DATA3 Data input terminal
9 DATA4 Data input terminal
13 -PS Oscillator control input terminal
KEY
INPUT DATA TONE FREQ.
CONT1 CONT2 DATA1 DATA2 DATA3 DATA4 fL fH
H H
L L L H 697 1209
2 H H L L N L 697 1336
3 H H
L L H H 697 1477
4 H H L H L L 770 1209
5 H H L
H
L
H 770 1336
6 H H
L H H L 770 1477
7
H
H L H H H
o52 1203
8
H H H L
L
L 852 1336
9 H H H L L
H
852
1477
0 H H H L
H L 941 1336
H H H L H H 941 1209
# H H H
H
L
L 941 1477
A H H H H L H 697 1633
B H H H
H H L
770
1633
C N H H H H
H 852
1633
D H
H L L L L 941 1633
L
H
BINARY INPUT
fL -
H L
fH
L L
H H
Block Diagram
DATA CONT1 -TD
1-4 CONT2 MUTE
OSCIN OSCOUT