BA7725S データシートの表示（PDF） - ROHM Semiconductor
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BA7725S Datasheet PDF : 8 Pages
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Multimedia ICs
BA7725S / BA7725FS
•Electrical characteristics (unless otherwise noted, Ta = 25°C, Vcc = 9V)
Parameter
Symbol Min. Typ. Max. Unit
Supply current
ICC
4.3 5.7 7.6 mA
〈LINE THROUGH〉 INPUT : LINE IN, OUTPUT : LINE OUT
Line through output level
VOLL – 9.0 – 8.0 – 7.0
dBV
Line through output distortion
THDLL
—
0.15 0.5
%
Line through maximum output level
VOML + 5.0 + 7.2
— dBV
Line through noise level
VONL
— – 92 – 77 dBV
〈MIC THROUGH〉 INPUT : MIC AMP IN, OUTPUT : LINE OUT
Microphone through output level
VOML – 10.5 – 8.5 – 6.5 dBV
Microphone through output distortion
THDML
—
0.2 0.5
%
Microphone through input conversion noise VONM
— – 114 – 104 dBV
Microphone through crosstalk
CTML
— – 91 – 75 dBV
〈COMPRESS〉 INPUT : MIC AMP IN, OUTPUT : CMP BF OUT
Compress output level
VOMC – 6.5 – 4.5 – 2.5
dBV
Compress output distortion
Compress noise level
THDMC
—
0.5 2.0
%
VONC
— – 55 – 45 dBV
Compress characteristics
CMP
— – 11.0 —
dB
〈EXPAND〉 INPUT : DLY BF IN, OUTPUT : LINE OUT
Expand output level 1
VODL1 – 11.7 – 9.7
— dBV
Expand output distortion
THDDL
—
0.25 2.0
%
Expand characteristic
EXP
— – 19.5
—
dB
Expand output level 2
VODL2
— – 54 – 44
dB
〈Loop〉 INPUT : DLY BF IN, OUTPUT : CMP BF OUT
Loop output level 1
VODC1 – 7.5 – 5.5
— dBV
Loop output level 2
VODC2
— – 42 – 32
dBV
〈Mode holding voltage〉
MIC OFF holding voltage
V4OFF
0.0
—
1.0
V
MIC ON holding voltage
V4ON
2.0
—
9.0
V
∗1 BW = 0.4-30kHz
∗2 DIN AUDIO
Unless otherwise noted, V4 = 9.0V (MIC ON), V6 = 9.0V (Max. LOOP GAIN)
No input
Conditions
VIN = – 26.0dBV
VIN = – 26.0dBV, MIC OFF,∗1
THD = 1%,∗1
MIC OFF, Rg = 600Ω,∗2
VIN = – 52dBV
VIN = – 52dBV,∗1
Input shorted
VIN = – 44dBV, MIC OFF,∗2
VIN = – 52dBV
VIN = – 52dBV,∗1
Rg = 600Ω,∗2
VIN = – 42dBV → – 62dBV
Output level differential
VIN = – 5.0dBV, V4 = 9.0V
VIN = – 5.0dBV, V4 = 9.0V,∗1
VIN = 0dBV → – 10.0dBV
Output level differential
VIN = – 5.0dBV,
V4 = 2.0V (VR = Min. time)
Output level differential relative to VoDL1
VIN = – 5.0dBV, V6 = 9.0V
VIN = – 5.0dBV,
V6 = 2.0V (VR = Min. time)
Output level differential relative to VoDC1
—
—
5
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