TEA7540 データシートの表示（PDF） - STMicroelectronics
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TEA7540 Datasheet PDF : 12 Pages
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TEA7540
ELECTRICAL CHARACTERISTICS (Refer to test circuits, Tamb = 25°C; V+ = 3V; f = 1KHz unless otherwise
specified).
Symbol
Parameter
SUPPLY SECTION
V+
Supply Voltage
IC
Current Consumption
TRANSMIT SECTION
COMPRESSOR
Rine Compressor input impedance
CR Compressor Range
G1max Maximum Gain
G1min Minimum Gain
VO
Output Voltage
Tdh Transmit Distortion
Icce1 Compressor dacay time current
Icce2 Compressor rise time current
Vcce1
Vcce2
Voltage drop PIN8
Vcce = Vref - Vpin8
PEAK DETECTOR
Rinpd
Ice2
Input impedance PIN11
Rise time current
NOISE MEMORIZATION
V1 Max voltage drop on pin 9
ATTENUATOR
Rina
ATE-
Input impedance PIN4
Attenuation=
20log(Voute/Vatte)
Mode: Inactive Tx, Rx
Comp. Max Gain
ATE-active Mode: Active
ATE-IDLE Mode: Noise Tx, Rx Comp.
Max Gain
RECEIVE SECTION
COMPRESSOR
Rinr Input impedance
CR Compressor Range
G2max Maximum Gain
G2min
Vmicout
Minimum Gain
Compressor output voltage
Rdh Receive Distortion
Iccr1 Compressor decay time
current
Iccr2 Compressor rise time current
Vccr1
Vccr2
Voltage drop PIN20
Vccr = Vref - Vpin20
Test Condition
Vcs = 0
Handsfree mode
Vcs= N.C.
Monitoring mode
PIN13
PIN12 compressing range
Increasing gain
Decreasing gain
G1max
G1min
Rpin24 = 11KΩ
Rpin24 = 15KΩ
Rpin24 = 11KΩ
Rpin24 = 11KΩ
PIN15
PIN16 compressing range
Increasing gain
Decreasing gain
G2max
G2min
Min. Typ. Max. Unit Fig.
2.5
7.0
V
1
2.1
3.0
mA
1
1.1
1.5
mA
7.5 10.0 14.5 KΩ
1
16.5
dB
40.5 41.5 42.5 dB
2
24.0 25.0 26.0 dB
3
160 200 240 mVpp 4
3.0
%
4
1.0 1.25 1.5
µA
5
65
85
105
µA
6
0
20
mV
2
175 225 275 mV
3
7.5 10.0 14.5 KΩ
1
16
20
24
µA
7
33
36
45
mV
8
7.5
10
14.5
KΩ
1
46
dB
9
58
dB
0
1.5
3
dB
10
23
dB
11
7.5 10.0 14.5 KΩ
1
20.5
dB
35.5 36.5 37.5 dB
2
15.0 16.0 17.0 dB
3
160 200 240 mVpp 4
3.0
%
4
1.0 1.25 1.5
µA
5
65
85
105
µA
6
0
20
mV
2
175 225 275 mV
3
6/12
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