S1T2425A Datasheet, PDF (1/7 Pages) Samsung semiconductor – SPEECH NETWORK WITH DIALER INTERFACE

SPEECH NETWORK WITH DIALER INTERFACE
INTRODUCTION
The S1T2425A is telephone speech network integrated circuit which
includes transmit amp, receive amp, side tone amp, DC loop interface
function, DTMF input, voltage regulator for speech, a regulated output
voltage for a dialer, and equalization circuit .
18−DIP−300A
FEATURES
• Low voltage operation (1.5V : speech)
• Transmit, Receive, Side tone and DTMF level
are controlled by external resistors
• Regulated voltage for dialer
• Loop length equalization
• MUTE function
• Linear interface for DTMF
ORDERING INFORMATION
Device
S1T2425A01-D0B0
Package
18−DIP−300A
Operating Temperature
− 20 to + 60°C
PIN CONFIGURATION
MIC ₁
18 ^MT
TXI ₂
17 ^MS
TXO ₃
16 ^TI
STA ₄
15 ^VDD
CC ₅ S1T2425A ₁₄ V+
EQ ₆
13 ^LR
RXI ₇
12 ^LC
RXO ₈
RMT 9
11 ^VR
10 ^V-
S1T2425A
1