Philips TDA8542

1998 Apr 01 7

Philips Semiconductors Product speciﬁcation

2× 1 W BTL audio ampliﬁer TDA8542

AC CHARACTERISTICS

VCC =5V; T

amb =25°C; RL=8Ω; f = 1 kHz; VMODE = 0 V; measured in test circuit Fig.3; unless otherwise speciﬁed.

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

source impedance of RS=0Ω at the input.

3. Supply voltage ripple rejection is measured at the output, with a source impedance of RS=0Ω at the input.

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.

4. Supply voltage ripple rejection is measured at the output, with a source impedance of RS=0Ω at the input.

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

Pooutput power THD = 10% 1 1.2 −W

THD = 0.5% 0.6 0.9 −W

THD total harmonic distortion Po= 0.5 W −0.15 0.3 %

Gvclosed loop voltage gain note 1 6 −30 dB

Zidifferential input impedance −100 −kΩ

Vno noise output voltage note 2 −−100 µV

SVRR supply voltage ripple rejection note 3 50 −−dB

note 4 40 −−dB

Vooutput voltage in mute condition note 5 −−200 µV

αcs channel separation 40 −−dB