Samsung KA8603D, KA8603 Datasheet
KA8603 UNIVERSAL SPEECH NETWORK
ORDERING INFORMATION
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.
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)
BLOCK DIAGRAM
16-DIP-300A
16-SOP-225
Device Package Operating Temperature
KA8603 16-DIP-300A
KA8603D 16-SOP-225
- 25°C ~ + 75°C
MUTE
MIC-
MIC+
Vcc
13
12
10
RXI
6
7
11
MF
INVERTER
RXI
RX AMP
MXI
MIC AMP
ATTENU
ATOR
BIAS &
REFERENCE
9 8
GND CST VST AGC TXGA2 R
DTMF AMP
14 15 3
AGC
BAND GAP
REF
TX AMP
V
L
1
5
RXGA
4
RXO
2
TXGA1
16
DC
KA8603 UNIVERSAL SPEECH NETWORK
PIN CONFIGURATION
TXGA1
TXGA2
RXO
RXGA
MIC-
MIC+
CST
1
V
L
2
3
KA8603
4
5
6
7
8
16
RDC
15
AGC
14
VST
13
Vcc
12
MUTE
11
MF
10
RXI
9
GND
PIN DESCRIPTION
Pin No Symbol Description
1 V
L
2 TXGA1 TX gain adjustment
3 TXGA2 TX gain adjustment
4 RXO RX output
5 RXGA RX gain adjustment
6 MIC- Mic(-) input
7 MIC+ Mic(+) input
8 CST Current stabilizer
9 GND Ground
10 RXI RX input
11 MF DTMF Input
12 MUTE Mute ‘High’ : DTMF mode, Mute ‘Low’ : speech mode
13 V
CC
14 VST Voltage stabilizer
15 AGC Automatic gain control
16 R
DC
Positive power line and TX Amp output
Internal power supply pin
DC Resistance control
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