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TBA820M-TBA820M#
1.2W AUDIO AMPLIFIER
TBA820M1.2W AUDIO AMPLIFIER
DESCRIPTIONThe TBA820M is a monolithic integrated audio
amplifier in a 8 lead dual in-line plastic package. It
is intended for use as low frequency class B power
amplifier with wide range of supply voltage: 3 to
16V , in portable radios, cassette recorders and
players etc. Main features are: minimum working
supply voltage of 3V, low quiescent current, low
number of external components, good ripple rejec-
tion, no cross-over distortion, low power dissipa-
tion.
Output power: Po = 2W at 12V/8Ω, 1.6W at 9V/4Ω
and 1.2W at 9V/8Ω.
June 1988
ABSOLUTE MAXIMUM RATINGS
TEST AND APPLICATION CIRCUITS
Figure 1. Circuit diagram with load connected to the
supply voltage
Figure 2. Circuit diagram with load connected
to ground* Capacitor C6 must be used when high rip-
ple rejection is requested.
1/6
THERMAL DATA
PIN CONNECTION (top view)
SCHEMATIC DIAGRAM
TBA820M
ELECTRICAL CHARACTERISTICS (Refer to the test circuits Vs = 9V, Tamb = 25 °C unless otherwise
specified)
(*) B = 22 Hz to 22 KHz
TBA820M
Figure 3. Output power vs.
supply voltage
Figure 4. Harmonic distortion
vs. output power
Figure 5. Power dissipation
and efficiency vs. output
Figure 6. Maximum power
dissipation (sine wave
operation)
Figure 7. Suggested value of
CB vs. Rf
Figure 8. Frequency res-
ponse
Figure 9. Harmonic distortion
vs. frequency
Figure 10. Supply voltage
rejection (Fig. 2 circuit)
Figure 11. Quiescent current
vs. supply voltage
TBA820M
MINIDIP PACKAGE MECHANICAL DATA
TBA820M
. However, SGS-THOMSON Microelectronics assumes no responsibility for the
or other rights of third parties which may result from its use. No
license is granted by implication or otherwise under any patent or patent rights of SGS-THOMSON Microelectronics. Specifications mentioned
in this publication are subject to change without notice. This publication supersedes and replaces all information previously supplied.
SGS-THOMSON Microelectronics products are not authorized for use as critical components in life support devices or systems without express
written approval of SGS-THOMSON Microelectronics.
© 1994 SGS-THOMSON Microelectronics - All Rights Reserved
SGS-THOMSON Microelectronics GROUP OF COMPANIES
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TBA820M
