TDA8920BJ View Datasheet(PDF) - Philips Electronics
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Description
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TDA8920BJ Datasheet PDF : 33 Pages
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Philips Semiconductors
TDA8920B
2 × 100 W class-D power amplifier
[2] Only complete shut-down of amplifier if short-circuit impedance is below threshold of 1 Ω. In all other cases
current limiting: resulting in clipping output signal.
[3] Fault condition detected during (every) transition between standby-to-mute and during restart after
activation of OCP (short to one of the supply lines).
8.4 Differential audio inputs
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 Figure 6.
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.
IN1P
IN1M
Vin
IN2P
IN2M
OUT1
SGND
OUT2
power stage
mbl466
Fig 6. Input configuration for mono BTL application.
9. Limiting values
Table 5: Limiting values
In accordance with the Absolute Maximum Rating System (IEC 60134).
Symbol Parameter
Conditions
Min
Max
Unit
VP
IORM
supply voltage
repetitive peak current in
output pin
maximum output
current limiting
-
[1] 8
±30
V
-
A
Tstg
Tamb
Tj
storage temperature
ambient temperature
junction temperature
−55
+150
°C
−40
+85
°C
-
150
°C
[1] Current limiting concept. See also Section 13.6.
9397 750 13356
Preliminary data sheet
Rev. 01 — 1 October 2004
© Koninklijke Philips Electronics N.V. 2004. All rights reserved.
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