KA8603
UNIVERSAL SPEECH NETWORK
INTRODUCTION
16-DIP-300A
The KA8603 can fulfill the standards of other countries
by changing the external component.
Dynamic or piezoelectric type can be used with receiver.
Each gain is controlled with AGC in accordance with
the line current. The KA8603 can be operated down to
D.C line 1.6V.
FEATURES
•
Independent adjustment of DC resistance and
AC impedance.
•
ECM or dynamic microphone can be used.
•
DTMF signal interface.
•
Mute function
•
Operates at the low line voltage (1.6V)
•
Low or high impedance receiver type can be used.
•
Low line current operation. (IL = 4mA)
16-SOP-225
ORDERING INFORMATION
Device
KA8603
KA8603D
Package
16-DIP-300A
16-SOP-225
Operating Temperature
- 25°C ~ + 75°C
BLOCK DIAGRAM
Vcc
13
MUTE 12
INVERTER
V
L
1
5
RXI
RXI 10
4
RX AMP
MXI
RXGA
RXO
2
MIC-
MIC+
6
7
ATTENU
ATOR
BIAS &
REFERENCE
DTMF AMP
MIC AMP
TX AMP
TXGA1
MF 11
AGC
BAND GAP
REF
3
16
R
DC
9
GND
8
CST
14
VST
15
AGC TXGA2
SAMSUNG [ SAMSUNG SEMICONDUCTOR ]
