TA8721ASN View Datasheet(PDF) - Toshiba
Part Name
Description
Manufacturer
TA8721ASN Datasheet PDF : 9 Pages
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TA8721ASN
AC CHARACTERISTICS
(When using the specified coil unless otherwise specified, VCC=9V, Ta=25°C)
CHARACTERISTIC
Audio Frequency Output
Level
(Note 1)
Audio Frequency
Distortion Rate (Note 2)
Limiting Sensitivity
(Note 3)
AMR
(Note 4)
Audio Frequency
Bandwidth
(Note 5)
S / N Ratio
(Note 6)
Crosstalk Between Sound
Outputs
(Note 7)
Limiter Input Resistance
(Note 8)
SYMBOL
VOD1
VOD2
THD1
THD2
VLIM1
VLIM2
AMR1
AMR2
AFBW1
AFBW2
S / N1
S / N2
CR1
CR2
TEST
CIR-
CUIT
2
2
2
2
2
2
2
TEST CONDITION
fo=4.5MHz, Vi=100dBµV
fo=4.724MHz, Vi=100dBµV
fo=4.5MHz
fo=4.724MHz
When output VOD1 is −3dB.
When output VOD2 is −3dB.
fo=4.5MHz, AM=30%
fo=4.724MHz, AM=30%
−3dB bandwidth
−3dB bandwidth
fo=4.5MHz,
CW against FM 25kHz / dev
fo=4.724MHz,
CW against FM 25kHz / dev
SIF1 fo=4.5MHz, fm=400Hz
SIF2 fo=4.724MHz, CW
SIF1 fo=4.5MHz, CW
SIF2 fo=4.724MHz, fm=400Hz
Ri1, Ri2
2
―
MIN. TYP.
350
500
350
500
―
0.2
―
0.2
―
―
―
―
40
50
40
50
±70 ―
±70 ―
60 ―
60 ―
60 ―
60 ―
0.75
1.0
MAX. UNIT
700
700
mVrms
1.0
%
1.0
50 dBµV
50
―
dB
―
―
kHz
―
―
dB
―
―
dB
―
1.25 kΩ
TEST CONDITION
Note 1:
Note 2:
Note 3:
Audio Frequency Output Level
Limiter input
VOD1 : fo=4.5MHz, 100dBµV, fm=400Hz, 100% (25kHz / dev) FM modulation
VOD2 : fo=4.724MHz, 100dBµV, fm=400Hz, 100% (25kHz / dev) FM modulation
After the above input, measure the output level of sound output.
Audio Frequency Distortion Rate
Measure the distortion rate of sound output by distortion meter under the condition of Note 1.
Limiting Sensitivity
Limiter input
VLIM1 : fo=4.5MHz, variable level, fm=400Hz, 100% (25kHz / dev) FM modulation
VLIM2 : fo=4.724MHz, variable level, fm=400Hz, 100% (25kHz / dev) FM modulation
After the above input, measure the output level of sound output. Measure the input level of Note 1
output level at −3dB.
2001-02-06 5/9
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