TDA7850 datasheet(8/18 Pages) STMICROELECTRONICS

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Electrical specifications

TDA7850

8/18

3.3

Electrical characteristics

Table 4.

Electrical characteristics

(Refer to the test and application diagram, VS = 14.4V; RL = 4Ω; Rg = 600Ω; f = 1KHz;

Tamb = 25°C; unless otherwise specified).

Symbol

Parameter

Test Condition

Min.

Typ.

Max.

Unit

Iq1

Quiescent current

RL = ∞

100

180

280

VOS

Output offset voltage

Play mode / Mute mode

±60

dVOS

During mute ON/OFF output

offset voltage

ITU R-ARM weighted

see Figure 20

-10

+10

During St-By ON/OFF output

offset voltage

-10

+10

Voltage gain

dGv

Channel gain unbalance

±1

Output power

VS = 13.2V; THD = 10%

VS = 13.2V; THD = 1%

VS = 14.4V; THD = 10%

VS = 14.4V; THD = 1%

VS = 14.4V; THD = 10%, 2Ω

Po max.

Max. output power(1)

VS = 14.4V; RL = 4Ω

VS = 14.4V; RL = 2Ω

THD

Distortion

Po = 4W

Po = 15W; RL = 2Ω

0.006

0.015

0.05

0.07

eNo

Output noise

"A" Weighted

Bw = 20Hz to 20KHz

μV

SVR

Supply voltage rejection

f = 100Hz; Vr = 1Vrms

fch

High cut-off frequency

PO = 0.5W

100

300

KHz

Input impedance

100

120

Cross talk

f = 1KHz PO = 4W

f = 10KHz PO = 4W

ISB

St-By current consumption

VSt-By = 1.5V

μA

VSt-By = 0V

Ipin5

St-by pin current

VSt-By = 1.5V to 3.5V

±1

μA

VSB out

St-By out threshold voltage

(Amp: ON)

2.75

VSB in

St-By in threshold voltage

(Amp: OFF)

1.5

Mute attenuation

POref = 4W

VM out

Mute out threshold voltage

(Amp: Play)

3.5

VM in

Mute in threshold voltage

(Amp: Mute)

1.5

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