TDA8920B NXP Semiconductors, TDA8920B Datasheet - Page 11

• Manufacturer Part Number: TDA8920B
• Description: The TDA8920B is a high efficiency class-D audio power amplifier with very lowdissipation
• Manufacturer: NXP Semiconductors

Philips Semiconductors
9. Limiting values
TDA8920B_2
Product data sheet
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
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]
[2]
Symbol
V
I
T
T
T
ORM
Fig 6. Input configuration for mono BTL application
stg
amb
j
P
Overvoltage protection might be activated.
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. 02 — 07 November 2005
IN1M
IN2M
IN1P
IN2P
Section
13.6.
Conditions
operating
non operating
maximum output
current limiting
power stage
2
OUT1
OUT2
mbl466
[1]
[2]
100 W class-D power amplifier
SGND
© Koninklijke Philips Electronics N.V. 2005. All rights reserved.
Min
-
-
8
-
55
40
Figure
TDA8920B
Max
-
+150
+85
150
30
32
6.
Unit
V
V
A
C
C
C
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