tda8562q-n1-s420 NXP Semiconductors, tda8562q-n1-s420 Datasheet - Page 4

• Manufacturer Part Number: tda8562q-n1-s420
• Description: 4 X 12 W Single-ended Car Radio Power Amplifier With Dynamic Distortion Detector And Diagnostic Interface
• Manufacturer: NXP Semiconductors

Philips Semiconductors
PINNING
The device is primarily developed for car radio
applications.
FUNCTIONAL DESCRIPTION
The TDA8562Q contains four identical amplifiers and can
be used for single-ended applications. The gain of each
amplifier is fixed at 20 dB. Special features of the device
are:
Mode select switch (pin 14)
To avoid switch-on plops, it is advised to keep the amplifier
in the mute mode during
capacitors at pin 1, 3, 15 and pin 17).
This can be achieved by:
July 1994
IN 1
GND(S)
IN 2
RR
V
OUT 1
GND1
OUT 2
n.c.
OUT 3
GND2
OUT 4
V
MODE
IN 3
V
IN 4
low stand-by current (< 100 A)
low switching current (low cost supply switch)
mute facility
microprocessor control
external timing circuit (see Fig.7)
P1
P2
DIAG
4 x 12 W single-ended car radio power amplifier with
dynamic distortion detector and diagnostic interface
SYMBOL
PIN
10
12
13
14
15
16
17
11
1
2
3
4
5
6
7
8
9
input 1
signal ground
input 2
supply voltage ripple rejection
supply voltage
output 1
power ground 1
output 2
not connected
output 3
power ground 2
output 4
supply voltage
mode select switch input
input 3
diagnostic output
input 4
100 ms (charging of the input
DESCRIPTION
4
Diagnostic output (pin 16)
DYNAMIC DISTORTION DETECTOR
At the onset of clipping of one or more output stages, the
dynamic distortion detector becomes active and pin 16
goes low. This information can be used to drive a sound
processor or DC volume control to attenuate the input
signal and thus limit the distortion. The output level of pin
16 is independent of the number of channels that are
clipping (see Fig.3).
handbook, halfpage
OUTP 2
OUTP 4
GND(S)
V
MODE
OUT 1
OUT 3
GND1
GND2
DIAG
Fig.2 Pin configuration.
V P1
V
IN 1
IN 2
IN 3
IN 4
n.c.
RR
P2
10
11
12
13
14
15
16
17
1
2
3
4
5
6
7
8
9
TDA8562Q
MEA866 - 1
(DDD)
Product specification
TDA8562Q