Philips TDA7053 Datasheet
INTEGRATED CIRCUITS
DATA SH EET
TDA7053
2 x 1 W portable/mains-fed stereo
power amplifier
Product specification
File under Integrated Circuits, IC01
February 1994
Philips Semiconductors Product specification
2 x 1 W portable/mains-fed stereo
TDA7053
power amplifier
GENERAL DESCRIPTION
The TDA7053 is an integrated class-B stereo power amplifier in a 16-lead dual-in-line (DIL) plastic package. The device,
consisting of two BTL amplifiers, is primarily developed for portable audio applications but may also be used in mains-fed
applications.
Features
• No external components
• No switch-ON/OFF clicks
• Good overall stability
• Low power consumption
• Short-circuit-proof.
QUICK REFERENCE DATA
PARAMETER CONDITIONS SYMBOL MIN. TYP. MAX. UNIT
Supply voltage range V
Total quiescent current R
Output power R
= ∞ I
L
= 8 Ω;
L
V
= 6 V P
P
Internal voltage gain G
Total harmonic distortion P
= 0.1 W THD − 0.2 1.0 %
O
P
tot
O
v
3 6 18 V
− 916mA
− 1.2 − W
38 39 40 dB
PACKAGE OUTLINE
16-lead DIL; plastic (SOT38); SOT38-1; 1996 July 24.
February 1994 2
Philips Semiconductors Product specification
2 x 1 W portable/mains-fed stereo
power amplifier
TDA7053
Fig.1 Block diagram.
February 1994 3
Philips Semiconductors Product specification
2 x 1 W portable/mains-fed stereo
TDA7053
power amplifier
PINNING
1. SGND1 signal ground 1 9. OUT2A output 2 (positive)
2. IN1 input 1 10. GND2 power ground 2
3. n.c. not connected 11. n.c. not connected
4. n.c. not connected 12. OUT2B output 2 (negative)
5. V
P
6. IN2 input 2 14. GND1 power ground 1
7. SGND2 signal ground 2 15. n.c. not connected
8. n.c. not connected 16. OUT1A output 1 (positive)
Note
The information contained within the parentheses refer to the polarity of the loudspeaker terminal to which the output
must be connected.
FUNCTIONAL DESCRIPTION
The TDA7053 is a stereo output amplifier, with an internal gain of 39 dB, which is primarily for use in portable audio
applications but may also be used in mains-fed applications. The current trends in portable audio application design is
to reduce the number of batteries which results in a reduction of output power when using conventional output stages.
The TDA7053 overcomes this problem by using the Bridge-Tied-Load (BTL) principle and is capable of delivering 1.2 W
into an 8 Ω load (V
supply voltage 13. OUT1B output 1 (negative)
= 6 V). The load can be short-circuited under all input conditions.
P
February 1994 4
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