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TS4975 Scheda tecnica(PDF) 9 Page - STMicroelectronics

Il numero della parte TS4975
Spiegazioni elettronici  Stereo Headphone Drive Amplifier with Digital Volume Control via I2C Bus
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Produttore elettronici  STMICROELECTRONICS [STMicroelectronics]
Homepage  http://www.st.com
Logo STMICROELECTRONICS - STMicroelectronics

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TS4975
Electrical Characteristics
9/36
Crosstalk
Channel Separation
RL =32Ω, AV = 2dB with Single-ended
F= 1kHZ, Pout =20mW
103
dB
RL =32Ω, AV = 2dB with Single-ended
F = 20Hz to 20kHz, Pout =20mW
75
RL =32Ω, AV = 2dB with Phantom Ground,
F= 1kHZ, Pout =20mW
69
RL =32Ω, AV = 2dB with Phantom Ground,
F = 20Hz to 20kHz, Pout =20mW
69
SNR
Signal To Noise Ratio
AV =2dB, RL =32Ω, Pout = 25mW
Single-Ended
90
dB
AV =2dB, RL =32Ω, Pout = 25mW
Phantom Ground
90
ONoise
Output Noise Voltage,
A-Weighted
AV = 2dB, Single-ended
23
µVrms
AV = 2dB, Phantom Ground
23
G
Digital Gain Range
In1 & In2 to Out1 & Out2
-34
+18
dB
Digital Gain Step size
4
dB
Gain Error Tolerance
-1
+1
dB
Zin
In1 & In2 Input
Impedance
All gain settings
25.5
30
34.5
k
twu
Wake up time
Cb=1µF
90
156
ms
tws
Standby time
1
µs
1.
Dynamic measurements - 20*log(rms(Vout)/rms(Vripple)). Vripple is an added sinus signal to VCC @ F = 217Hz
Table 6.
VCC = +3.3V, GND = 0V, Tamb = 25°C (unless otherwise specified)
Symbol
Parameter
Conditions
Min.
Typ.
Max.
Unit


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