Electrical specifications

TDA7498E

8/20

Doc ID 022595 Rev 1

3.4

Electrical specifications

Unless otherwise stated, the values in the table below are specified for the conditions:

Tamb = 25 °C.

Table 6.

Electrical specifications

Symbol

Parameter

Condition

Min

Typ

Max

Unit

Total quiescent current

No LC filter, no load

-

60

mA

Quiescent current in standby

-

-

1

µA

Output offset voltage

Vi = 0 Av = 23.6 dB,

no load

-20

-

20

mV

Overcurrent protection threshold

10

11

14

A

Junction temperature at thermal

shutdown

-

140

150

160

°C

Input resistance

Differential input

69

-

k

Ω

Undervoltage protection threshold

-

-

-

8

V

Power transistor on resistance

High side

-

0.15

-

Ω

Low side

-

0.15

-

Output power

THD = 10%

-

160

-

W

THD = 1%

-

125

-

Parallel BTL (mono) output power,

THD = 10%

-

220

-

W

THD = 1%

-

170

-

η

Efficiency

-

85

-

%

THD

Total harmonic distortion

-

0.05

-

%

Closed-loop gain

GAIN0 < 0.25*VDD

23.8

dB

0.25*VDD < GAIN < 0.5*VDD

29.8

0.5*VDD < GAIN < 0.75*VDD

33.3

GAIN > 0.75*VDD

35.8

Gain matching

-

-1

-

1

dB

Crosstalk

50

60

-

dB

Vn

Total output noise

Inputs shorted and to Ground A

curve

231

µV

Inputs shorted and to Ground

f = 20 Hz to 20 kHz

400

µV

SVRR

Supply voltage rejection ratio

fr = 100 Hz, Vr = 0.5 Vpp,

-55

-

dB

Rise and fall times

-

-

35

-

ns

Switching frequency

Internal oscillator

240

310

400

kHz

Output switching frequency range

With internal oscillator by changing

240

-

kHz