BA7760 Datasheet, PDF (3/6 Pages) Rohm – Microphone Amplifier

Multimedia ICs
•^{Input / output circuits}
MUTE CTRL 13
40kΩ
BA7760 / BA7760F
Fig. 1
•^{Electrical characteristics (unless otherwise noted, Vcc = 12V, Ta = 25°C)}
Parameter
Symbol Min. Typ. Max. Unit
Conditions
Supply current
Iq
〈MIC AMP (GVC= 36dB, f = 1kHz)〉
Open loop voltage gain
GVOM
Input conversion noise
VnM
Distortion
THDM
3.65 4.87 6.09
55.0 65.0
—
— – 122 – 114
—
0.008 0.1
Maximum output level
Input impedance
Crosstalk
〈MIX BF (f = 1kHz)〉
Voltage gain
Output residual noise
Distortion
VomM
ZinM
CTM
8.3
10.4
—
92
123
—
— – 86 – 78
GVB
VnB
THDB
– 0.7
—
—
0
– 110
0.7
– 100
0.002 0.07
Maximum output level
Input impedance
Mute level
Mute threshold voltage
VOMB
ZinB
MTB
VTHMUTE
8.3
10.5
—
50.0 66.5
—
— – 110 – 100
2.12 2.62 3.12
mA
—
dB VIN = – 70dBV
dBV Rg = 2.2kΩ, DIN AUDIO
%
VIN = – 40dBV
B.W. = 0.4 ~ 30kHz
dBV
THD = 1%
B.W. = 0.4 ~ 30kHz
kΩ VIN = – 40dBV, 100kΩAttenuation
dBV
VIN = – 36dBV
Rg = 2.2kΩ, DIN AUDIO
dB VIN = – 10dBV
dBV Rg = 2.2kΩ, DIN AUDIO
%
VIN = – 10dBV
B.W. = 0.4 ~ 30kHz
dBV
THD = 1%
B.W. = 0.4 ~ 30kHz
kΩ VIN = – 10dBV, 50kΩAttenuation
dBV VIN = – 10dBV, DIN AUDIO
V
—
3