- Texas AIP Consumer Audio User's Guide

www.ti.com
5.5.1 Filter Consideration for Speaker Output
SPOLP/
SPORP
SPOLN/
SPORN
B
1
B
2
C
15
C
16
HDTI
V
CC
+
+
HPOL
HPOR
PGND
HPCOM
HP Jack
HDTI
HPOL
HPOR
PGND
HPCOM
HP Jack
ConventionalMode CaplessMode
V
CC
Connection Diagram for Practical Applications
For a practical application such as a portable audio player or cellular phone, a ferrite chip bead will be a
suitable low-pass filter to the speaker output; see Figure 5-16 . Figure 5-17 describes recommended
connections for headphone output and insertion detection.
Refer to the product data sheet for further information on this application circuit. C
15
and C
16
= 1nF, B
1
and B
2
Ferrite
Chip Bead : NEC/Tokin: N2012ZPS121.
Figure 5-16. Recommended Ferrite Bead Filter for Speaker Output
Figure 5-17. Connection for Headphone Output and Insertion Detection
62 Evaluation and Measurements SBAU127 – July 2007
Submit Documentation Feedback