UNIVERSAL SPEECH NETWORK 16-DIP-300A KA8603 fulfill standards oth
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KA8603
UNIVERSAL SPEECH NETWORK
16-DIP-300A KA8603 fulfill standards other countries changing external component. Dynamic piezoelectric type used with receiver. Each gain controlled with accordance with line current. KA8603 operated down line 1.6V.
FEATURES
Independent adjustment resistance impedance. dynamic microphone used. DTMF signal interface. Mute function Operates line voltage (1.6V) high impedance receiver type used. line current operation. 4mA) 16-SOP-225
ORDERING INFORMATION
Device KA8603 KA8603D Package 16-DIP-300A 16-SOP-225 Operating Temperature 25°C 75°C
BLOCK DIAGRAM
MUTE
INVERTER
RXGA
MICMIC+
ATTENU ATOR BIAS REFERENCE DTMF
TXGA1
BAND
TXGA2
KA8603
UNIVERSAL SPEECH NETWORK
CONFIGURATION
TXGA1 TXGA2 RXGA MICMIC+
MUTE
KA8603
DESCRIPTION
TXGA1 TXGA2 RXGA MICMIC+ MUTE Symbol Description Positive power line output gain adjustment gain adjustment output gain adjustment Mic(-) input Mic(+) input Current stabilizer Ground input DTMF Input Mute High': DTMF mode, Mute Low': speech mode Internal power supply Voltage stabilizer Automatic gain control Resistance control
KA8603
UNIVERSAL SPEECH NETWORK
ABSOLUTE MAXIMUM RATINGS
Characteristic Line Voltage Line Current Surge Line Current Power Dissipation Operating Temperature Storage Temperature Symbol IL(SURGE) Value Unit
ELECTRICAL CHARACTERISTICS
25°C, 1KHz, 15mA, unless otherwise noted) Characteristic Symbol Line Voltage 15mA 50mA 140mA Line Voltage with Between Pin14 220K Between RDOWN 330K 3mVrms 3400Hz ZI(MIC) GV(RX) GRXF (RX) 15mA Gain Gain frequency response Dynamic output voltage RLOAD 150+10u 3400Hz 150) 50mA 80mA 15mA 50mA 80mA Gain frequency response Dynamic output voltage Input Impedance GTXF (TX) Test Conditions 3.55 4.15 6.45 4.35 4.25 4.55 Unit
Line Voltage with RDOWN
3.25 49.5 45.5 43.5 28.5 24.5 22.5 0.22 0.30
3.45 51.5 47.5 45.5 30.5 26.5 24.5 0.29 0.40
3.65 53.5 49.5 47.5 32.5 28.5 26.5
Gain
(TX)
Vrms
Vrms
KA8603
UNIVERSAL SPEECH NETWORK
ELECTRICAL CHARACTERISTICS
25°C, 1KHz, 15mA, unless otherwise noted) Characteristic DTMF GAIN DTMF Input Impedance MUTE Input Voltage Gain variation range Gain variation range Noise Output Voltage (Psophometric weighted) Noise Output Voltage (Psophometric weighted) Symbol (MF) (MF) (MUTE) (MUTE) GTXA GRXA VTNO VRNO Test Conditions (MUTE RAGC 180K 80mA RAGC 180K 80mA 23.5 25.5 20.7 27.5 Unit dBmp
KA8603
UNIVERSAL SPEECH NETWORK
APPLICATION CIRCUIT
10µF RING 120K 100nF 3.9K
220µF
100K
RECEIVER
100pF
RXO+
RXGA
MIC-
TXGA1 TXGA2 MUTE
MIC+
Rdown pin1
500p
3.6K
180K
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