KA8603 Datasheet, PDF (1/5 Pages) Samsung semiconductor – UNIVERSAL SPEECH NETWORK

KA8603
UNIVERSAL SPEECH NETWORK
INTRODUCTION
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.
16-DIP-300A
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
RXI 10
INVERTER
RXI
MIC- 6
MIC+ 7
MF 11
ATTENU
ATOR
BIAS &
REFERENCE
9
GND
8
CST
MXI
MIC AMP
DTMF AMP
V_L
1
RX AMP
5 RXGA
4 RXO
2 TXGA1
TX AMP
AGC
BAND GAP
REF
14
15 3
16
VST AGC TXGA2
R_DC