TS488(2019) Ver la hoja de datos (PDF) - STMicroelectronics

Número de pieza

componentes Descripción

Fabricante

TS488
(Rev.:2019)

Pop-free 120 mW stereo headphone amplifier

STMicroelectronics 

TS488

Electrical characteristics

3

Electrical characteristics

Table 4. Electrical characteristics at VCC=+5 V with GND =0 V, Tamb= 25 °C (unless otherwise specified)

Symbol

Parameter

Conditions

Min. Typ. Max. Unit

ICC Supply current

No input signal, no load

2 2.7 mA

ISTBY Standby current

No input signal, VSTBY = GND RL = 32 Ω

10 1000 nA

THD+N = 0.1% max., F = 1 kHz, RL = 32 Ω

75

Pout Output power

THD+N = 1% max. F = 1 kHz, RL = 32 Ω

THD+N = 0.1% max., F = 1 kHz, RL = 16 Ω

70 80

mW

120

THD+N = 1% max., F = 1 kHz, RL = 16 Ω

100 130

THD+N

Total harmonic distortion +

noise

AV=-1, RL = 32 Ω, Pout = 60 mW, 20 Hz ≤ F ≤ 20 kHz

AV=-1, RL = 16 Ω, Pout = 90 mW, 20 Hz ≤ F ≤ 20 kHz

0.3

%

0.3

AV=-1, RL ≥ 16 Ω, Cb=1 µF, F = 1 kHz, Vripple = 200 mVpp

64 70

PSRR

Power supply rejection

ratio, inputs grounded(1)

AV=-1, RL ≥ 16 Ω, Cb=1 µF, F = 217 kHz, Vripple = 200

mVpp

62 68

dB

VOL: RL = 32 Ω

0.23 0.31

VO Output swing

VOH: RL = 32 Ω

VOL: RL = 16 Ω

4.53 4.72

V

0.44 0.57

VOH: RL = 16 Ω

4.18 4.48

SNR Signal-to-noise ratio

A-weighted, AV=-1, RL = 32 Ω, THD+N < 0.4%, 20 Hz ≤ F ≤

20 kHz

105

dB

Crosstalk Channel separation

RL = 32 Ω, AV = -1, F = 1 kHz, F = 20 Hz to 20 kHz

RL = 32 Ω, AV = -1, F = 1 kHz, F = 20 Hz to 20 kHz

-102

dB

-84

Ci

Input capacitance

1

pF

GBP Gain bandwidth product RL = 32 Ω

1.1

MHz

SR

Slew rate, unity gain

inverting

RL = 16 Ω

0.65

V/µs

VIO Input offset voltage

Vicm=VCC/2

1 20 mV

twu Wake-up time

100

ms

1. Guaranteed by design and evaluation.

DS4579 - Rev 7

page 4/32

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