±17V; RL = 8Ω; Demod. filter L =

30mH, C = 220nF; f = 1KHz; fsw = 200kHz; Tamb = 25°‘C unless otherwise specified.)

Symbol

Parameter

Test Condition

Min.

Typ.

Max.

Unit

Supply Range

±10

±25

V

Total Quiescent Current

∞ no LC filter

70

120

mA

Output Offset Voltage

–150

+150

mV

Output Power

THD = 10%

THD = 1%

12

10

15

12

W

W

Output Power in Bridge

Configuration

Vs =

THD = 10%

THD = 1%

28

22.5

W

W

Vs =

THD = 10%

THD = 1%

28

22.5

W

W

(1)

Output Power

THD = 10%

THD = 1%

15

12

W

W

Maximum Dissipated Power

4W

η

Efficiency (*)

86

%

THD

Total Harmonic Distortion

0.1

%

Overcurrent Protection

Threshold

3.5

5

A

Thermal Shut-down Junction

Temperature

150

°C

Closed Loop Gain

29

30

31

dB

Gain Matching

-1

+1

dB

Total Input Noise

Ω

A Curve

f = 20Hz to 22KHz

7

12

µV

µV

Cross talk

55

dB

Input Resistance

20

30

k

Ω

SVR

Supply Voltage Rejection

60

dB

Overvoltage Threshold

(5)

55

60

V

Rising and Falling Time

50

70

ns

Power Transistor on Resistance

0.4

0.8

Ω

(4)

Switching Frequency Range

100

200

230

KHz

MUTE & STAND-BY FUNCTIONS

Stand-by range

0

0.7

V

Mute Range

1.7

2.5

V

Play Range

4

5

V

Mute Attenuation

55

60

dB

Quiescent Current @ Stand-by

3

5

mA

COIL58120 MPPA 2 (magnectics) TURNS = 20 ø 1mm

(1) L = 15

µH, C = 470nF

(3)

∆Gv is intended with R2, R17, R5, R9 1% precision

⋅ (1/(300ns + R13 ⋅ ( C17 + 76pF) ⋅ 0.85)

TDA7490L

4/9