TS4975 datasheet(9/36 Pages) STMICROELECTRONICS

部品番号	TS4975

部品情報	Stereo Headphone Drive Amplifier with Digital Volume Control via I2C Bus

PDF	36 Pages

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メーカー	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

RL =32Ω, AV = 2dB with Single-ended

F = 20Hz to 20kHz, Pout =20mW

RL =32Ω, AV = 2dB with Phantom Ground,

F= 1kHZ, Pout =20mW

RL =32Ω, AV = 2dB with Phantom Ground,

F = 20Hz to 20kHz, Pout =20mW

SNR

Signal To Noise Ratio

AV =2dB, RL =32Ω, Pout = 25mW

Single-Ended

AV =2dB, RL =32Ω, Pout = 25mW

Phantom Ground

ONoise

Output Noise Voltage,

A-Weighted

AV = 2dB, Single-ended

µVrms

AV = 2dB, Phantom Ground

Digital Gain Range

In1 & In2 to Out1 & Out2

-34

+18

Digital Gain Step size

Gain Error Tolerance

-1

Zin

In1 & In2 Input

Impedance

All gain settings

25.5

34.5

Ω

twu

Wake up time

Cb=1µF

156

tws

Standby time

µs

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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