TS4601B Просмотр технического описания (PDF) - STMicroelectronics

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TS4601B

High performance stereo headphone amplifier with capacitorless outputs and I2C bus interface

STMicroelectronics 

TS4601B

Electrical characteristics

Table 6.

Symbol

Electrical characteristics of the amplifier

from VCC=+2.9 V to VCC=+5.5 V, GND = 0 V, Tamb = 25° C (unless otherwise specified)

Parameter

Min. Typ. Max. Unit

PSRR

CMRR

Crosstalk

SNR

ONoise

Power supply rejection ratio(2)

F = 217Hz, RL = 16Ω, G = 0dB

Vripple = 200mVpp, grounded inputs

F = 10kHz, RL = 16Ω, G = 0dB

Vripple = 200 mVpp, grounded inputs

Common mode rejection ratio

RL = 16Ω, F = 20Hz to 20 kHz, G = 0dB, Vic = 200 mVpp

Channel separation

RL = 16Ω, G = 0dB, F = 1kHz, Po = 40mW

RL = 10kΩ, G = 0dB, F = 1kHz, Vout = 1.6Vrms

Signal to noise ratio, A-weighted, RL=16 Ω, Vout = 0.9Vrms

THD+N < 1%, F = 1kHz, G=+4 dB(3)

Output noise voltage, A-weighted(3)

G= +4dB

G=-19.5dB

100 107

dB

70

65

dB

60

82

dB

80

84

101

dB

-100 dBV

-103

G

Gain range with Gain(dB) = 20xlog[(VoutL/R)/(InL/R+ - InL/R-)]

-60

+4

dB

Mute InL/R+ - InL/R- = 1Vrms

-80

dB

Gain step size

-

from -60dB to -36dB

from -36dB to -16.5dB

from -16.5dB to +4dB

3

dB

1.5

0.5

-

Step size error

-1

+1 stepsize

Gain error (G = +4dB)

-0.45

+0.42 dB

Left and right channel input impedance all gains setting

Zin

Single-ended inputs referenced to GND

Differential inputs

10

12 14.5

kΩ

20

24

29

Output impedance in Mode 5 (negative supply is ON and

amplifier output stages are OFF)(3)

Zout

F < 40kHz

F = 6MHz

10

kΩ

500

Ω

F = 36MHz

75

Ω

twu

Wake-up time

12

22

ms

tSTBY Standby time

10

µs

1. Guaranteed by design and parameter correlation.

2. Dynamic measurements - 20*log(rms(Vout)/rms(Vripple)). Vripple is an added sinus signal to VCC @ F = 217 Hz.

3. Guaranteed by design and parameter correlation.

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