u3761mb-asd ETC-unknow, u3761mb-asd Datasheet - Page 12

• Manufacturer Part Number: u3761mb-asd
• Description: Voltage Standard Telephone Circuit With Memories
• Manufacturer: ETC-unknow

U3761MB
12 (23)
T/P MUTE
T/P MUTE
KEY IN
KEY IN
MASK
MASK
DTMF
DTMF
HKS
HKS
OSC
OSC
DP
DP
t
3
KID
t
TD
Preliminary Information
Oscillation
4
M
R/P
t
K10
Figure 5. DTMF mode normal dialing
B
t
PDP
Figure 4. Pulse mode auto dialing
t
KRD
t
ITP
2
Oscillation
High
Low
t
t
IDP
ITP
M B
t
IDP
t t
TELEFUNKEN Semiconductors
OHD
Oscillation
5
t
KRD
t
ITP
Rev. A2, 23-Apr-97
13404
13405