TS4994EIKJT View Datasheet(PDF) - STMicroelectronics

Part Name

Description

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TS4994EIKJT

1.2 W differential input/output audio power amplifier with selectable standby

STMicroelectronics 

Electrical characteristics

TS4994FC

Table 4.

Electrical characteristics for VCC = +3.3V (all electrical values are guaranteed with

correlation measurements at 2.6V and 5V), GND = 0V, Tamb = 25°C (unless otherwise

specified)

Symbol

Parameter

Min. Typ.

Max.

Unit

ICC

ISTBY

Voo

VICM

Supply current no input signal, no load

Standby current

No input signal, VSTBY = VSM = GND, RL = 8Ω

No input signal, VSTBY = VSM = VCC, RL = 8Ω

Differential output offset voltage

No input signal, RL = 8Ω

Input common mode voltage

CMRR ≤ -60dB

3

7

10

1000

0.1

10

0.6

VCC - 0.9

Pout

Output power

THD = 1% max, F= 1kHz, RL = 8Ω

300 500

THD + N

Total harmonic distortion + noise

Pout = 300mW rms, AV = 1, 20Hz ≤ F ≤ 20kHz, RL = 8Ω

0.5

Power supply rejection ratio with inputs grounded(1)

PSRRIG F = 217Hz, R = 8Ω, AV = 1, Cin = 4.7μF, Cb =1μF

100

Vripple = 200mVPP

Common mode rejection ratio

CMRR F = 217Hz, RL = 8Ω, AV = 1, Cin = 4.7μF, Cb =1μF

90

Vic = 200mVPP

SNR

Signal-to-noise ratio (A-weighted filter, AV = 2.5)

RL = 8Ω, THD +N < 0.7%, 20Hz ≤ F ≤ 20kHz

100

GBP

Gain bandwidth product

RL = 8Ω

2

Output voltage noise, 20Hz ≤ F ≤ 20kHz, RL = 8Ω

Unweighted, AV = 1

6

A-weighted, AV = 1

5.5

Unweighted, AV = 2.5

12

VN

A-weighted, AV = 2.5

10.5

Unweighted, AV = 7.5

33

A-weighted, AV = 7.5

28

Unweighted, Standby

1.5

A-weighted, Standby

1

tWU

Wake-up time(2)

Cb =1μF

15

1. Dynamic measurements - 20*log(rms(Vout)/rms (Vripple)). Vripple is the super-imposed sinus signal relative to VCC.

2. Transition time from standby mode to fully operational amplifier.

mA

nA

mV

V

mW

%

dB

dB

dB

MHz

μVRMS

ms

6/35

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