TFA9815 NXP Semiconductors, TFA9815 Datasheet - Page 17

• Manufacturer Part Number: TFA9815
• Description: The TFA9815 is a 2-channel power comparator for high-efficiency class D audio amplifiersystems
• Manufacturer: NXP Semiconductors

NXP Semiconductors
TFA9815_1
Preliminary data sheet
13.4 Differential input
13.5 Single-ended input
Table 13.
For a high common-mode rejection ratio and a maximum of flexibility in the application,
the audio inputs of the application are fully differential.
The input configuration for a differential-input application is illustrated in
When using an audio source with a single-ended ‘out’, it is important to connect the IN1N
from the application board to the V
Processing (Audio DSP)).
The input configuration for a single-ended ‘in’ application is illustrated in
Configuration
BTL
Fig 7.
Input configuration for a differential input
Filter component values
AUDIO
DSP
V
SS
Rev. 01 — 16 December 2008
Impedance ( )
4
6
8
+
+
SS
of the audio source (e.g. Audio Digital Signal
IN1
LLC ( H)
10
15
22
OUT1N
OUT1P
Audio amplifier 2 x 17 W
CLC (nF)
1500
1000
680
010aaa382
© NXP B.V. 2008. All rights reserved.
TFA9815
Figure
Figure
7.
8.
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