SPEECH NETWORK WITH DIALER INTERFACE
S1T2425A
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 2 3 4 5...