TDA7293

Electrical specifications

Doc ID 6744 Rev 8

5/21

2.3

Electrical characteristics

The specifications given here were obtained with the conditions VS = ±40 V, RL = 8 Ω,

Rg =50 Ω, Tamb = 25 °C, f = 1 kHz unless otherwise specified.

.

Table 4.

Electrical characteristics

Symbol

Parameter

Test conditions

Min

Typ

Max

Unit

VS

Supply range

-

±12

-

±50

V

Iq

Quiescent current

-

-

50

100

mA

Ib

Input bias current

-

-

0.3

1

µA

VOS

Input offset voltage

-

-10

-

10

mV

IOS

Input offset current

-

-

-

0.2

µA

PO

Continuous output power

d = 1%, RL = 4 Ω,

VS = ±29 V

75

80

80

-W

d = 10%, RL = 4Ω,

VS = ±29 V

90

100

100

-W

d

Total harmonic distortion (1)

PO = 5 W, f = 1 kHz

-

0.005

-

%

PO = 0.1 to 50 W,

f = 20 Hz to 15 kHz

--

0.1

%

ISC

Current limiter threshold

VS ≤ ±40 V

-

6.5

-

A

SR

Slew rate

-

5

10

-

V/

µs

GV

Open loop voltage gain

-

-

80

-

dB

GV

Closed loop voltage gain (2)

-

2930

31dB

eN

Total input noise

A = curve

-

1

-

µV

f = 20 Hz to 20 kHz

-

3

10

µV

Ri

Input resistance

-

100

-

-

k

Ω

SVR

Supply voltage rejection

f = 100 Hz,

Vripple = 0.5 V RMS

-75

-

dB

TS

Thermal protection

Device mutes

-

150

-

°C

Device shuts down

-

160

-

°C

Standby function (ref. to to pin 1)

VST on

Standby on threshold

-

-

-

1.5

V

VST off

Standby off threshold

-

3.5

-

-

V

ATTst-by

Standby attenuation

-

70

90

-

dB

Iq st-by

Quiescent current @ standby

-

-

0.5

1

mA

Mute function (ref. to pin 1)

VMon

Mute on threshold

-

-

-

1.5

V

VMoff

Mute off threshold

-

3.5

-

-

V

ATTmute

Mute attenuatIon

-

60

80

-

dB