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TS4975 Datasheet(PDF) 7 Page - STMicroelectronics

No. de pieza TS4975
Descripción Electrónicos  Stereo Headphone Drive Amplifier with Digital Volume Control via IC Bus
Download  33 Pages
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Fabricante Electrónico  STMICROELECTRONICS [STMicroelectronics]
Página de inicio  http://www.st.com
Logo STMICROELECTRONICS - STMicroelectronics

TS4975 Datasheet(HTML) 7 Page - STMicroelectronics

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TS4975
Electrical Characteristics
7/33
Table 7.
VCC = +5V, GND = 0V, Tamb = 25°C (unless otherwise specified)
Symbol
Parameter
Min.
Typ.
Max.
Unit
I
CC
Supply Current
No input signal, no load, Single Ended, Mode 1-4
No input signal, no load, Single Ended, Mode 5-8
No input signal, no load, Phantom Ground, Mode 1-4
No input signal, no load, Phantom Ground, Mode 5-8
3
2
4.6
3.6
4.2
2.8
6.5
5.3
mA
I
STANDBY
Standby Current (SCL and SDA at VCC level)
No input signal
0.6
2
µA
Voo
Output Offset Voltage
No input signal, RL = 32
Ω, Phantom Ground
550
mV
Po
Output Power
THD+N = 1% Max, f = 1kHz, RL = 16
Ω, Single Ended
THD+N = 1% Max, f = 1kHz, RL = 32
Ω, Single Ended
THD+N = 1% Max, f = 1kHz, RL = 16
Ω, Phantom Ground
THD+N = 1% Max, f = 1kHz, RL = 32
Ω, Phantom Ground
92
59
92
59
102
64
98
63
mW
THD + N
Total Harmonic Distortion + Noise, Av = 2dB
RL=32
Ω, Po=50 mW, 20Hz < F < 20kHz, Single Ended
RL=16
Ω, Po=80 mW, 20Hz < F < 20kHz, Single Ended
RL=32
Ω, Po=50 mW, 20Hz < F < 20kHz, Phantom Ground
RL=16
Ω, Po=80 mW, 20Hz < F < 20kHz, Phantom Ground
0.3
0.3
0.3
0.3
%
PSRR
Power Supply Rejection Ratio(1)
F = 217Hz, RL = 16
Ω, Av = 2 dB
Vripple = 200mVpp, Input Grounded, Cb = 1µF, Single Ended
Output referenced to Phantom Ground
F = 217Hz, RL = 16
Ω, Av = 2 dB
Vripple = 200mVpp, Input Grounded, Cb = 1µF, Single Ended
Output referenced to Ground
1.
Dynamic measurements - 20*log(rms(Vout)/rms(Vripple)). Vripple is an added sinus signal to Vcc @ F = 217Hz
63
63
dB
Crosstalk
Channel Separation, RL = 32
Ω, Av = 2 dB with Single Ended
F = 1kHZ, Po=50mW
F = 20Hz to 20kHz, Po=50mW
Channel Separation, RL = 32
Ω, Av = 2 dB with Phantom Ground
F = 1kHZ, Po=50mW
F = 20Hz to 20kHz, Po=50mW
103
75
69
69
dB
SNR
Signal To Noise Ratio, A-Weighted, Av=2dB, RL=32
Ω,
Po=62mW
Single Ended
Phantom Ground
95
95
dB
ONoise
Output Noise voltage, A-Weighted, Av=2dB
Single Ended
Phantom Ground
23
23
µVrms
G
Digital Gain Range In1 & In2 to Out1 & Out2
-34
+18
dB
Digital Gain Stepsize
4
dB
Gain error tolerance
-1
+1
dB
Zin
In1 & In2 Input Impedance, All Gain setting
25.5
30
34.5
k
Twu
Wake up time, Cb=1µF
80
144
ms
Tws
Standby time
1
µs


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