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MC34118_15 Datasheet, PDF (6/15 Pages) Unisonic Technologies – VOICE SWITCHED SPEAKER-PHONE CIRCUIT | |||
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UNISONIC TECHNOLOGIES CO., LTD
MC34118
LINEAR INTEGRATED CIRCUIT
ï® ELECTRICAL CHARACTERISTICS(Cont.)
PARAMETER
SYMBOL
TEST CONDITIONS
Transmit Attenuator Gain (f=1kHz)
TX Mode, TXI=150mVrms
Idle Mode, TXI=150mVrms
TX to Rx Mode Range
TXO DC Voltage
ïTXO DC Voltage
TXO High Voltage
TXO Low Voltage
TXI Input Resistance
Gain Tracking
GTX
GTXI
ïGTXI
VTXO
ïVTXO
VTXOH
VTXOL
RTXI
GTR
TX
TX to RX Mode
IOUT=-1mA, TXI=VB+1.5V
IOUT =+1mA, TXI=VB-1V,
Output Measured with
Respect to VB
TXI<350mVrs
GRX+GTX, @TX, IDIE, RX
Attenuator Control
CT Voltage ( CT-VB)
RX Mode
Idle Mode
TX Mode
CT Source Current
CT Sink Current
CT Slow Idle Current
CT Fast Idle Internal Resistance
VLC Input Current
Dial Tone Detector Threshold
VLC=VB
ICTR (Switching to RX Mode)
ICTT (Switching to TX Mode)
ICTS
RFI
IVLC
VDT
Microphone Amplifier ( VMUT< 0.8V, AVCL=31dB, unless otherwise specified)
Output Offset
MCOVOS VMCO-VB, RF=180 kâ¦
Open Loop Gain
AVOLM F<100Hz
Gain Bandwidth
GBWM
Output High Voltage
VMCOH IOUT =1mA, VCC=5V
Output Low Voltage
VMCOL IOUT =1mA
Input Bias Current
IBM @MCI
Muting(ïGain)
GMT
f=1kHz, VMUT=2V
300Hz<f<10kHz
MUT Input Resistance
MUT High Input Voltage
MUT Low Input Voltage
Distortion
RMUT
VMUTH
VMUTL
THDM
VCC=VMUT=6.5V
300Hz<f<10kHz
HYBID AMPLIFIER
HTO-Offset
HTO- to HTO+ Offset
Open Loop Gain
Gain Bandwidth
Closed Loop Gain
Input Bias Current(@HTI)
HTO- High Voltage
HTO- Low Voltage
HTO+ High Voltage
HTO+ Low Voltage
Distortion
HVOS
HBVOS
AVOLH
GBWH
AVCLH
IBH
VHT-H
VHT-L
VHT+H
VHT+L
THDM
VHTO-~VB, RF=51kâ¦
RF =51kâ¦
HTI to HTO-, F<100Hz
HTO- to HTO+
IOUT =-5mA
IOUT =+5mA
IOUT =-5mA
IOUT =+5mA
300Hz<f<10kHz
MIN TYP MAX UNIT
4
6
8 dB
-22 -20 -17 dB
49 52 54 dB
VB
V
+-30 +-150 mV
3.7
V
-1.5 -1 V
7 10 14 kâ¦
+-0.1
dB
240
mV
0
mV
-240
mV
-85 -60 -40 µA
+40 +60 +85 µA
0
µA
1.5 2 3.6 kâ¦
-60
nA
10 15 20 mV
-50 0 50 mV
70 80
dB
1
MHz
3.7
V
200 mV
-40
nA
-55 -68
dB
50 90
kâ¦
2
Vcc V
0
0.8 V
0.15
%
-20 0 20 mV
-30 0 30 mV
60 80
dB
1
MHz
-0.35 0 0.35 dB
-30
nA
3.7
V
250 mV
3.7
V
450 mV
0.3
%
UNISONIC TECHNOLOGIES CO., LTD
www.unisonic.com.tw
6 of 15
QW-R108-007.F
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