Samsung S1T8501X01-D0B0 Datasheet
SPEECH NETWORK WITH DIALER INTERFACE S1T8501
INTRODUCTION
16−DIP−300A
The S1T8501 is a speech network integrated circuit which includes
the following components: transmit amp, receive amp, DTMF amp,
voltage regulator, line equalizer, and voltage comparator. It handles
the voice signal, performing the 2/4 wires interface and changing the
gain on both sending and receiving amplifiers to compensate the line
current. The S1T8501 can work in fixed gain mode.
FEATURES
• Adjusts sending and receiving attenuation length
• Regulated voltage output for external dialer
• Linear interface for DTMF
• Suitable for ceramic transducers
• Mute function
ORDERING INFORMATION
Device Package Operating Temperature
S1T8501X01-D0B0 16−DIP−300A −45°C — + 70°C
1
S1T85011 SPEECH NETWORK WITH DIALER INTERFACE
PIN CONFIGURATION
REGULATOR
REGULATOR
LINE CURRENT
Z
BAL
ABSOLUTE MAXIMUM RATINGS
Characteristic Symbol Value Unit
MIC1
V +
MUTING
BIAS ADJ.
BYPASS
SENSING
SWITCH
1
2
3
4
5
6
7
8
S1T8501
16
15
14
13
12
11
10
9
MIC2
V
DD
MF
RXO2
RXO1
RXI +
RXI −
V −
Line Voltage (3msec max)
Forward Line Current
Reverse Line Current
Power Dissipation (Ta = 70°C)
Operating Temperature
Storage Temperature
T
T
V
L
I
LF
I
LR
P
D
OPR
STG
22 V
150 mA
−150 mA
1 W
− 45 — + 70 °C
− 65 — + 150 °C
2
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