UNIVERSAL SPEECH NETWORK
KA8603
UNIVERSAL SPEECH NETWORK
INTRODUCTION
16-DIP-300A The KA8603 can fulfill the standards of other countries by ch...
Description
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
VL 1
5
RXI
RXI 10 4
RX AMP MXI
RXGA RXO
2 MICMIC+ 6 7
ATTENU ATOR BIAS & REFERENCE DTMF AMP MIC AMP TX AMP
TXGA1
MF 11
AGC
BAND GAP REF 3 16 RDC
9 GND
8 CST
14 VST
15
AGC TXGA2
KA8603
UNIVERSAL SPEECH NETWORK
PIN CONFIGURATION
VL TXGA1 TXGA2 RXO RXGA MICMIC+ CST
1 2 3 4 5 6 7 8
16 15 14
RDC AGC VST Vcc MUTE MF RXI GND
KA8603
13 12 11 10 9
PIN DESCRIPTION
Pin No 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 VL TXGA1 TXGA2 RXO RXGA MICMIC+ CST GND RXI MF MUTE VCC VST AGC RDC Symbol Description Positive power line and TX Amp output TX gain adjustment TX gain adjustment RX output RX gain adjustment Mic(-) input Mic(+) input Current stabilizer Ground RX input DTMF Input Mute ‘ High’: DTMF mode, Mute ‘...
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