°C, unless otherwise specified.)

Symbol

Parameter

Test Condition

Min.

Typ.

Max.

Unit

Supply Range

+5

+20

V

Total Quiescent Current

80

mA

Output Power

d = 10%

d= 1%

10

7.5

W

W

d

Total Harmonic Distortion

0.02

0.5

%

%

Cross Talk

f = 1KHz

f = 10KHz

70

60

dB

dB

SR

Slew Rate

10

V/

µs

Closed Loop Voltage Gain

29

30

31

dB

Voltage Gain Matching

0.2

dB

Total Input Noise

A Curve

f = 20Hz to 22KHz

2.5

3.5

8

µV

µV

Input Resistance

15

20

K

Ω

SVR

Supply Voltage Rejection

(each channel)

60

dB

Thermal Shut-down

Junction Temperature

145

°C

Mute / Play Threshold

-7

-6

-5

V

Mute Attenuation

60

90

dB

Stand-by / Mute Threshold

-3.5

-2.5

-1.5

V

Stand-by Attenuation

110

dB

Quiescent Current @ Stand-by

3

mA

Note :

MUSIC POWER is the maximal power which the amplifier is capable of producing across the rated load resistance (regardless of non linearity)

1 sec after the application of a sinusoidal input signal of frequency 1KHz.

COMPONENTS

RECOMMENDED

VALUE

PURPOSE

LARGER THAN

RECOMMENDED VALUE

SMALLER THAN

RECOMMENDED VALUE

R1

10K

Ω

Mute Circuit

Increase of Dz

Biasing Current

R2

15K

Ω

Mute Circuit

R3

18K

Ω

Mute Circuit

R4

15K

Ω

Mute Circuit

R5, R6

4.7

Ω

Frequency Stability

Danger of Oscillations

Danger of Oscillations

C1, C2

1

µF

Input DC

Decoupling

Higher Low Frequency

Cutoff

C3

1

µF

St-By/Mute Time

Constant

Larger On/Off Time

Smaller On/Off Time

C4, C6

1000

µF

Supply Voltage

Bypass

Danger of Oscillations

C5, C7

0.1

µF

Supply Voltage

Bypass

Danger of Oscillations

C8, C9

0.1

µF

Frequency Stability

Dz

5.1V

Mute Circuit

APPLICATIONS SUGGESTION

(Demo Board Schematic)

The recommended values of the external compo-

nents are those shown on the demo board sche-

matic. Different values can be used: the following

table can help the designer.

TDA7497

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