TDA8920BJ PHILIPS [NXP Semiconductors], TDA8920BJ Datasheet - Page 11

• Manufacturer Part Number: TDA8920BJ
• Description: 2 X 100 W class-D power amplifier
• Manufacturer: PHILIPS [NXP Semiconductors]

Philips Semiconductors
9. Limiting values
9397 750 13356
Preliminary data sheet
8.4 Differential audio inputs
[2]
[3]
For a high common mode rejection ratio and a maximum of flexibility in the application, the
audio inputs are fully differential. By connecting the inputs anti-parallel the phase of one of
the channels can be inverted, so that a load can be connected between the two output
filters. In this case the system operates as a mono BTL amplifier and with the same
loudspeaker impedance an approximately four times higher output power can be
obtained.
The input configuration for a mono BTL application is illustrated in
In the stereo single-ended configuration it is also recommended to connect the two
differential inputs in anti-phase. This has advantages for the current handling of the power
supply at low signal frequencies.
Table 5:
In accordance with the Absolute Maximum Rating System (IEC 60134).
[1]
Symbol
V
I
T
T
T
ORM
Fig 6. Input configuration for mono BTL application.
stg
amb
j
P
Only complete shut-down of amplifier if short-circuit impedance is below threshold of 1 . In all other cases
current limiting: resulting in clipping output signal.
Fault condition detected during (every) transition between standby-to-mute and during restart after
activation of OCP (short to one of the supply lines).
Current limiting concept. See also
Limiting values
Parameter
supply voltage
repetitive peak current in
output pin
storage temperature
ambient temperature
junction temperature
V
in
Rev. 01 — 1 October 2004
IN1M
IN2M
IN1P
IN2P
Section
13.6.
Conditions
maximum output
current limiting
power stage
2
OUT1
OUT2
mbl466
[1]
100 W class-D power amplifier
SGND
© Koninklijke Philips Electronics N.V. 2004. All rights reserved.
Min
-
8
-
55
40
Figure
TDA8920B
Max
-
+150
+85
150
30
6.
Unit
V
A
C
C
C
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