U4082B_15 Datasheet, PDF (6/13 Pages) Unisonic Technologies – VOICE SWITCHED SPEAKER-PHONE CIRCUIT

UNISONIC TECHNOLOGIES CO., LTD
U4082B
LINEAR INTEGRATED CIRCUIT
„ ELECTRICAL CHARACTERISTICS(Cont.)
PARAMETER
SYMBOL
TEST CONDITIONS
Microphone Amplifier ( V_MUT< 0.8V, A_VCL=31dB, unless otherwise specified)
Output Offset
Open Loop Gain
Gain Bandwidth
Output High Voltage
Output Low Voltage
Input Bias Current
Muting(ΔGain)
M_COVOS
A_VOLM
G_BWM
V_MCOH
V_MCOL
I_BM
G_MT
V_MCO-V_B, R_F=180 kΩ
F<100Hz
I_OUT =1mA, V_CC=5V
I_OUT =1mA
@MCI
f=1kHz, V_MUT=2V
300Hz<f<10kHz
MUT Input Resistance
R_MUT V_CC=V_MUT=6.5V
MUT High Input Voltage
V_MUTH
MUT Low Input Voltage
Distortion
HYBID AMPLIFIER
V_MUTL
THD_M 300Hz<f<10kHz
HTO-Offset
H_VOS
HTO- to HTO+ Offset
H_BVOS
Open Loop Gain
A_VOLH
Gain Bandwidth
G_BWH
Closed Loop Gain
A_VCLH
Input Bias Current(@HTI)
I_BH
HTO- High Voltage
V_HT-H
HTO- Low Voltage
V_HT-L
HTO+ High Voltage
V_HT+H
HTO+ Low Voltage
V_HT+L
Distortion
THD_M
Level Detectors And Background Noise Monitors
V_HTO-~V_B, R_F=51kΩ
R_F =51kΩ
H_TI to H_TO-, F<100Hz
H_TO- to H_TO+
I_OUT =-5mA
I_OUT =+5mA
I_OUT =-5mA
I_OUT =+5mA
300Hz<f<10kHz
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
Sink Current at RLO1, RLO2, TLO1, TLO2
CPR, CPT Output Resistance
CPR, CPT Leakage Current
Filter
I_LSO
I_LSK
R_CP
I_CPLK
I_OUT =1.5mA
Voltage Offset at FO
FO Sink Current
FI Bias Current
SYSTEM Distortion (f=1kHz)
F_OVOS
I_FO
I_FI
V_FO-V_B, 220kΩ from V_B to FI
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
MIN TYP MAX UNIT
-50 0 50 mV
70 80
dB
1
MHz
3.7
V
200 mV
-40
nA
-55
dB
-68
50 90
kΩ
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
%
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 %
UNISONIC TECHNOLOGIES CO., LTD
www.unisonic.com.tw
6 of 13
QW-R108-020.A