U3761MB-AFNG3 TEMIC [TEMIC Semiconductors], U3761MB-AFNG3 Datasheet - Page 4

• Manufacturer Part Number: U3761MB-AFNG3
• Description: Low Voltage Standard Telephone Circuit with 13 Memories
• Manufacturer: TEMIC [TEMIC Semiconductors]

Pin Description
U3761MB
4 (23)
SDIP40
15
1
2
3
4
5
6
7
8
9
SSO44
34, 35
7, 6,
10
12
1
2
3
4
5
8
9
Symbol
Earth
MFO
GND
NC
XT
XT
C1
C2
C3
C4
XT
XT
XT
XT
C2–C4
Preliminary Information
C1
C1
MFO
Configuration
PD
PD
PD
PD
PD
PD
40P
40P
40P
40P
Keyboard input
Earth key
Not connected
A built-in inverter provides
oscillation with an inexpensive
3.579545 MHz crystal or ceramic
resonator
Output of DTMF
DTMF output frequency
R1
R2
R3
R4
C1
C2
C3
Ground
TELEFUNKEN Semiconductors
Specified Actual
(HZ)
1209
1336
1477
697
770
852
941
Function
Rev. A2, 23-Apr-97
1216
1332
1472
(Hz)
699
766
848
948
+0.28
–0.52
–0.47
+0.74
+0.57
–0.30
–0.34
Error
(%)