STPA003 datasheet(11/25 Pages) STMICROELECTRONICS

11 / 25 page

DS10473 Rev 2

11/25

STPA003

Electrical specifications

3.3

Electrical characteristics

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

Tamb = 25 °C; unless otherwise specified.

Table 5. Electrical characteristics

Symbol

Parameter

Test condition

Min.

Typ.

Max.

Unit

General characteristics

Supply voltage range

Iq1

Quiescent current

RL = 

100

200

400

VOS

Output offset voltage

Mute mode

-80

+80

dVOS

Output offset voltage when mute

moves from ON to OFF

ITU R-ARM weighted

(see Figure 20)

-10

+10

Output offset voltage when stand-

by moves from ON to OFF

-10

+10

Input impedance

kΩ

ISB

Standby current consumption

VSt-by = 0.8 V

0.2

µA

VSt-by = 0

0.1

µA

Audio performances

Output power

VS = 13.2 V; THD = 10 %, 2 Ω

VS = 13.2 V; THD = 1 %, 2 Ω

VS = 13.2 V; THD = 10 %, 4 Ω

VS = 13.2 V; THD = 1 %, 4 Ω

VS = 14.4 V; THD = 10 %, 2 Ω

VS = 14.4 V; THD = 1 %, 2 Ω

VS = 14.4 V; THD = 10 %, 4 Ω

VS = 14.4 V; THD = 1 %, 4 Ω

Po max. Max. output power(1)

VS = 14.4 V; RL = 4 Ω

VS = 14.4 V; RL = 2 Ω

VS = 15.2 V; RL = 4 Ω(square

wave input (2 Vrms))

THD

Distortion

Po = 4 W

0.01

0.02

Voltage gain

25.5

26.5

dGv

Channel gain unbalance

-1

eNo

Output Noise

"A" Weighted

Bw = 20 Hz to 20 kHz

µV

SVR

Supply voltage rejection

f = 100 Hz; Vr = 1 Vrms

fch

High cut-off frequency

PO = 0.5 W

100

300

kHz

Cross talk

f = 1 kHz PO = 4 W

f = 10 kHz PO = 4 W

Mute attenuation

POref = 4 W

100

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