TDA8562 Philips Semiconductors, TDA8562 Datasheet - Page 10

• Manufacturer Part Number: TDA8562
• Description: 4 x 12 W single-ended car radio power amplifier with dynamic distortion detector and diagnostic interface
• Manufacturer: Philips Semiconductors

Philips Semiconductors
Mode select switch
To avoid switch-on plops, it is advised to keep the amplifier
in the mute mode during > 100 ms (charging of the input
capacitors at pins 1, 3, 15 and 17.
The circuit in Fig.7 slowly ramps up the voltage at the
mode select switch pin when switching on and results in
fast muting when switching off.
July 1994
handbook, halfpage
4 x 12 W single-ended car radio power amplifier with
dynamic distortion detector and diagnostic interface
(1) f = 10 kHz.
(2) f = 1 kHz.
(3) f = 100 Hz.
THD
10
10
(%)
10
10
1
10
1
2
2
2
Fig.7 Mode select switch circuitry.
V P
Fig.8 Total harmonic distortion as a function of output power; V
47 F
10 k
10
10 k
100 k
1
(2)
(1)
(3)
MGA708
switch
select
mode
10
1
P
= 14.4 V, R
10
L
P (W)
= 2 .
o
Product specification
TDA8562Q
MGA715
10
2