1998 Apr 01

7

Philips Semiconductors

Product specification

2

× 1 W BTL audio amplifier

TDA8542

AC CHARACTERISTICS

Notes

1. Gain of the amplifier is 2

× R2/R1 in test circuit of Fig.3.

2. The noise output voltage is measured at the output in a frequency range from 20 Hz to 20 kHz (unweighted), with a

The ripple voltage is a sine wave with a frequency of 1 kHz and an amplitude of 100 mV (RMS), which is applied to

the positive supply rail.

The ripple voltage is a sine wave with a frequency between 100 Hz and 20 kHz and an amplitude of 100 mV (RMS),

which is applied to the positive supply rail.

5. Output voltage in mute position is measured with a 1 V (RMS) input voltage in a bandwidth of 20 kHz, so including

noise.

SYMBOL

PARAMETER

CONDITIONS

MIN.

TYP.

MAX.

UNIT

output power

THD = 10%

1

1.2

−

W

THD = 0.5%

0.6

0.9

−

W

THD

total harmonic distortion

−

0.15

0.3

%

closed loop voltage gain

note 1

6

−

30

dB

differential input impedance

−

100

−

k

Ω

noise output voltage

note 2

−−

100

µV

SVRR

supply voltage ripple rejection

note 3

50

−−

dB

note 4

40

−−

dB

output voltage in mute condition

note 5

−−

200

µV

channel separation

40

−−

dB