KA2425A INTRODUCTION SPEECH NETWORK WITH DIALER INTERFACE The KA2425A 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 . 8-DIP-300A FEATURES • Low voltage operation .
• 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 20-SOP-375
ORDERING INFORMATION
Device KA2425B KA2425AD Package 18-DIP-300A 20-SOP-375 Operating Temperature - 20°C ~ + 60°C
PIN CONFIGURATION
MIC
1 2 3 4 5 6 7 8 9
Fig. 1
18 17 16 15 KA2425A 14 13 12 11 10
MT
TXI
MS
TXO
TI
STA
VDD
CC
V+
EQ
LR
RXI
LC
RXO
VR
RMT
V-
KA2425A
SPEECH NETWORK WITH DIALER INTERFACE
ABSOLUTE MAXIMUM RATINGS
Characteristic .
No. | Partie # | Fabricant | Description | Fiche Technique |
---|---|---|---|---|
1 | KA2428 |
Samsung |
TONE RINGER WITH BRIDGE DIODE | |
2 | KA2401 |
Samsung |
DC MOTOR SPEED CONTROLLER | |
3 | KA2402 |
Samsung |
DC MOTOR SPEED CONTROLLER | |
4 | KA2402D |
ETC |
LOW VOLTAGE DC MOTOR SPEED CONTROLLER | |
5 | KA2404 |
Samsung |
DC MOTOR SPEED CONTROLLER | |
6 | KA2404A |
Samsung |
DC MOTOR SPEED CONTROLLER | |
7 | KA2407 |
Samsung |
DC MOTOR SPEED CONTROLLER | |
8 | KA2410 |
Wing Shing Computer Components |
TELEPHONE TONE RINGERS | |
9 | KA2410 |
Samsung |
THE KA2410/KA2411 IS A BIPOLAR INTEGRATED CIRCUIT DESIGNED FOR TELEPHONE BELL REPLACEMENT | |
10 | KA2411 |
Wing Shing Computer Components |
TELEPHONE TONE RINGERS | |
11 | KA2411 |
Samsung |
THE KA2410/KA2411 IS A BIPOLAR INTEGRATED CIRCUIT DESIGNED FOR TELEPHONE BELL REPLACEMENT | |
12 | KA2418B |
Samsung |
TONE RINGER WITH BRIDGE DIODE |