TS4604 查看數據表（PDF） - STMicroelectronics

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TS4604

Stereo headset driver and analog audio line driver with integrated reference to ground

STMicroelectronics 

TS4604

Electrical characteristics

Table 5.

Symbol

Headset driver part: VCC = +3.3 V, GND = 0 V,

ENHP = VCC, ENLD = GND, CPhp = CPld = 1 µF, Av = 1 (R1 = R2 = 10 kΩ),

Tamb = 25°C (unless otherwise specified)

Parameters and test conditions

Min. Typ. Max.

Icc

IENHP

Vio

Po

Po

THD + N

PSRR

tWU

tSTBY

Xtalk

SNR

CMRR

Supply current (no input signal, no load)

Headset overall standby current (no input signal):

VENHP = GND

VENHP = 38% VCC

Input offset voltage

Headphone output power:

THD + N = 1% max, f = 1 kHz, BW = 22 kHz, RL = 16 Ω

Headphone output power:

THD + N = 1% max, f = 1 kHz, BW = 22 kHz, RL = 32 Ω

Total harmonic distortion + noise:

RL = 16 Ω, Po = 60 mW, f = 20 Hz to 20 kHz, BW = 22 kHz

Headphone power supply rejection ratio with AC inputs

grounded: f = 217 Hz,Vripple = 200 mVpp

Total wake-up time

Standby time

Crosstalk headphone to line:

Pout = 50 mW, RL = 16 Ω, f = 20 Hz to 20 kHz

Signal-to-noise ratio (A-weighting): RL = 16 Ω, Po = 60 mW

Common-mode rejection ratio:

f = 20 Hz to 20 kHz, Vic = 200 mVpp

5

6.5

1

5

100

-7

0

7

45

65

30

45

0.05

90

30

20

-100

102

-70

VN

Output voltage noise: f = 20 Hz to 20 kHz, A-weighted

7.6

Capacitive load:

CL(1)

RL = 16 Ω to 100 Ω

400

RL > 100 Ω

100

1. Higher capacitive loads are possible by adding a serial resistor of 47 Ω in the line driver output.

Unit

mA

µA

mV

mW

mW

%

dB

ms

µs

dB

dB

dB

µVRMS

pF

Doc ID 17913 Rev 1

7/31

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