tda8560q NXP Semiconductors, tda8560q Datasheet - Page 11

• Manufacturer Part Number: tda8560q
• Description: 2 X 40 W/2 Ohm Stereo Btl Car Radio Power Amplifier With Diagnostic Facility
• Manufacturer: NXP Semiconductors

Philips Semiconductors
1996 Jan 08
handbook, halfpage
2 40 W/2
power amplifier with diagnostic facility
(1) f = 10 kHz.
(2) f = 1 Hz.
(3) f = 100 Hz.
THD
10
(%)
10
10
10
1
10
1
2
2
Fig.7 Mode select switch circuitry.
2
V P
Fig.8 Total harmonic distortion as a function of output power; V
47 F
10 k
stereo BTL car radio
10
10 k
100 k
1
MGA708
switch
select
mode
11
1
Diagnostic output
Special care must be taken in the printed-circuit board
layout to separate pin 12 from pin 1 and pin 13, to
minimize the crosstalk between the diagnostic output and
the inputs.
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 pin 1 and pin 13).
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.
(2)
(3)
(1)
P
= 14.4 V; R
10
L
= 2 .
P (W)
o
Product specification
TDA8560Q
MGA904
10
2