U3761MB-AFNG3 TEMIC [TEMIC Semiconductors], U3761MB-AFNG3 Datasheet - Page 6

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

U3761MB
6 (23)
SDIP40
14
16
17
18
19
20
22
21
SSO44
17
18
19
20
21
22
24
23
RECO1
RECO2
Symbol
RECIN
MUTE
RDC
VBG
TIN
V
I
RECO2
RECO1
RECO2
RECO1
AGC
MUTE
RDC
Preliminary Information
VBG
REC
TIN
IN
VI
Configuration
PD
PD
PD
PD
PD
PD
6.7V
6.7V
16V
6.7V
6.7V
PD
16V
Ê
Ê
Ê
Ê
5.6K
60K
Ê Ê
30K
Ê Ê
Ê Ê
Ê Ê
Ê
Ê
Ê
Ê
Ê
Ê
60K
60K
MUTE
VL
VL
1V
VL
Ê
Ê
Ê
Ê
Ê
Ê
1V
1V
VBG
PD
VL
An external resistor (1 W) is
required from this pin to GND to
control the DC input impedance of
the circuit. It has a nominal value
of 39
Values up to 100
increase the available transmit
output voltage swing at the expense
of low-voltage operation.
Input to the line output driver am-
plifier. Transmit AGC applied to
this stage.
This internal voltage bias line must
be connected to VL via an external
resistor, R
AC input impedance of the circuit
and should be 680
input impedance or 1.2 k for a
900
Pin for testing
Pin for test mode
Receive amplifier input. The
receiving amplification is regulated
by an AGC.
Output of the receive amplifier.
Dynamic transducers with a
minimum impedance of 100
be directly driven by these outputs.
TELEFUNKEN Semiconductors
W
input impedance.
for low-voltage operation.
B
, which dominates the
Function
W
Rev. A2, 23-Apr-97
may be used to
for an 600
W
can
W