Datasheet

May 1992 4
Philips Semiconductors Product specification
2 x 22 W or 4 x 11 W single-ended car
radio power amplifier
TDA1558Q
PINNING
SYMBOL PIN DESCRIPTION
−INV1 1 non-inverting input 1
INV2 2 inverting input 2
GND 3 ground (signal)
SVRR 4 supply voltage ripple rejection
V
P1
5 supply voltage
OUT1 6 output 1
GND1 7 power ground 1
OUT2 8 output 2
n.c. 9 not connected
OUT4 10 output 4
GND2 11 power ground 2
OUT3 12 output 3
V
P2
13 supply voltage
M/SS 14 mute/stand-by switch
V
ref
15 internal reference voltage
INV3 16 inverting input 3
−INV4 17 non-inverting input 4
Fig.2 Pin configuration.
handbook, halfpage
MCD325 - 1
TDA1558Q
SVRR
P1
V
OUT1
GND1
OUT2
OUT4
OUT3
INV3
GND2
M / SS
ref
V
P2
V
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
n.c.
INV2
GND
– INV1
– INV4
FUNCTIONAL DESCRIPTION
The TDA1558Q contains four identical amplifiers with
differential input stages (two inverting and two
non-inverting), and can be used for single-ended or BTL
applications. The gain of each amplifier is fixed at 40 dB
(46 dB in BTL). Special features of this device are:
a. mute/stand-by switch
low stand-by current (< 100 µA)
low mute/stand-by switching current (low cost supply
switch)
mute facility.
b. the harmonic distortion at low frequencies can be
decreased by connecting two diodes at pin 15 to ground or
a zener diode of 1.5 V.