MC34118_09 Datasheet, PDF (6/12 Pages) Unisonic Technologies – VOICE SWITCHED SPEAKER-PHONE CIRCUIT

MC34118
LINEAR INTEGRATED CIRCUIT
„ ELECTRICAL CHARACTERISTICS(Cont.)
PARAMETER
SYMBOL
TEST CONDITIONS
Level Detectors And Background Noise Monitors
Transmit-Receive Switching
Threshold( Ratio of Current at RLI1+RLI2 to
I_TH
20μA at TLI1+TLI2 to Switch from Tx to Rx)
Source Current at RLO1, RLO2, TLO1, TLO2
I_LSO
Sink Current at RLO1, RLO2, TLO1, TLO2
CPR, CPT Output Resistance
I_LSK
R_CP I_OUT =1.5mA
CPR, CPT Leakage Current
Filter
I_CPLK
Voltage Offset at FO
FO Sink Current
F_OVOS
I_FO
V_FO-V_B, 220kΩ from V_B to FI
FI Bias Current
I_FI
SYSTEM Distortion (f=1kHz)
R_X Mode
T_X Mode
THD_R
THD
from F_I to R_XO,
F_O connected to R_XI
from MCI to H_TO-/H_TO+,
includes T_X attenuator
„ TEMPERATURE PARAMETERS
MIN TYP MAX UNIT
0.8 1 1.2
-2
mA
4
µA
35
Ω
-0.2
µA
-200 -90 0 mV
150 260 400 µA
-50
nA
0.5 3 %
0.8 3 %
PARAMETER
V_CC Supply Current(CD=0.8V)
V_CC Supply Current(CD=2V)
V_B Output Voltage (V_CC =5V)
Attenuator Gain (Max Gain)
Attenuator Gain (Max Attenuation)
Attenuator Input resistance
Dial Tone Detector Threshold
CT Source, Sink Current
Microphone, Hybrid Amplifier Offset
Transmit-Receive Switching Threshold
Sink Current at RLO1, RLO2, TLO1, TLO2
Closed Loop Gain( HTO- to HTO+)
TYP RATINGS (Ta=25°С)
5mA
400µA
2.1V
6
-46dB
10kΩ
15mV
±60µA
0mV
1
4µA
0dB
TYP CHANGE
-0.3
-0.4
+0.8
0.0008
0.004
0.6
20
-0.15
±4
±0.02
-10
0.001
UNIT
%/°С
%/°С
%/°С
dB/°С
dB/°С
%/°С
µV/°С
%/°С
µV/°С
%/°С
nA/°С
%/°С
UNISONIC TECHNOLOGIES CO., LTD
www.unisonic.com.tw
6 of 12
QW-R108-007,D