TDA7454 datasheet(3/13 Pages) STMICROELECTRONICS

3 / 13 page

ELECTRICAL CHARACTERISTICS (Refer to the test circuit VS = 14.4V; RL =4

Ω; f = 1KHz;

Tamb =25

°C, unless otherwise specified

Symbol

Parameter

Test Condition

Min.

Typ.

Max.

Unit

Supply Voltage Range

Total Quiescent Drain Current

140

250

Output Power

THD = 10%

THD = 1%

THD = 10% RL = 2

Ω;

THD = 1% RL =2

Ω;

Po EIAJ

EIAJ Output Power (*)

Vs = 13.7V

Vs = 13.7V, RL = 2

Ω

Po max.

Max. Output Power (*)

Vs = 14.4V

Vs = 14.4V, RL = 2

Ω

THD

Total harmonic distortion

PO = 1W to 10W; STD MODE

PO = 1W; HE MODE

PO = 10W; HE MODE

0.03

0.04

0.1

0.3

0.5

RL =2

Ω; HE MODE; PO =3W

RL =2

Ω; HE MODE; PO = 15W

0.06

0.15

0.3

0.5

Cross Talk

f = 1KHz to 10KHz

RIN

Input Impedance

Ω

Voltage Gain

∆GV

Voltage Gain Match

EIN

Output Noise Voltage

Rg = 600

Ω

100

150

SVR

Supply Voltage Rejection

f = 300Hz; Vr = 1Vrms;

Rg = 0 to 100

Ω;

Power Bandwidth

(–3dB)

KHz

ASB

Stand-by Attenuation

100

Vsb IN

Stand-by in Threshold

1.5

Vsb OUT

Stand-by out Threshold

3.5

Isb

Stand-by Current Consumption

100

µA

Mute Attenuation

VMIN

Mute in Thereshold

1.5

VM OUT

Mute out Threshold

3.5

Mute pin Current (Sourced)

V = 0 to VS

VS max = 18V

-10

µA

Mode Select Switch

Standard BTL Mode Op. (Vpin16)

Open

High Efficiency Mode (Vpin 16)

0.5

Clip Det. out Current

(Pull up to 5V with 10K

Ω)

CD off: POmin = 10W

CD on: THD = 5%

150

µA

(*) Saturated square wave output.

TDA7454

3/13

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