TDA8574 Philips Semiconductors, TDA8574 Datasheet - Page 2

• Manufacturer Part Number: TDA8574
• Description: Class-H high-output voltage level line driver
• Manufacturer: Philips Semiconductors

Philips Semiconductors
FEATURES
GENERAL DESCRIPTION
The TDA8574(T) is a two channel class-H high-output
voltage line driver for use in car audio applications.
The line driver behaves as a non-inverting amplifier with a
gain of 8 dB and a single-ended output. Due to the class-H
voltage lifting principle the voltage swing over the load is
more than the supply voltage. With a supply voltage of 9 V
the output voltage swing over the load will be
14 V (peak-to-peak).
QUICK REFERENCE DATA
ORDERING INFORMATION
1998 Oct 16
V
I
G
V
SVRR
THD
V
TDA8574T
TDA8574
CC
Z
NUMBER
SYMBOL
Output voltage swing larger than supply voltage
High supply voltage ripple rejection
Low distortion
Low noise
ESD protected on all pins.
CC
o(rms)
no
Class-H high-output voltage level line
driver
v
o
TYPE
supply voltage
supply current
voltage gain
maximal output voltage (RMS value)
supply voltage ripple rejection
total harmonic distortion
noise output voltage
output impedance
NAME
DIP16
SO16
PARAMETER
plastic small outline package; 16 leads; body width 7.5 mm
plastic dual in-line package; 16 leads (300 mil)
V
THD = 0.1%
V
CC
o(rms)
DESCRIPTION
2
= 9 V
CONDITIONS
PACKAGE
The TDA8574 is available in a DIP16 package and the
TDA8574T in a SO16 package.
Line drivers are necessary in car audio systems in which
the power amplifiers are driven by long cables.
The signal-to-noise ratio of these car audio systems is
improved by using the TDA8574(T) class-H high-output
level line driver. The high-output level of TDA8574(T)
enables a reduction of the gain of the power amplifier
resulting in an improvement of the power amplifier
performance.
= 3 V; f = 1 kHz
6
7.5
5.0
50
MIN.
9
8
8
5.2
65
0.003
5
TYP.
Product specification
12
13
8.5
10
MAX.
TDA8574
SOT162-1
VERSION
SOT38-4
V
mA
dB
V
dB
%
V
UNIT