IS31AP4913 Stereo Headphone Driver Evaluation Board Guide
Integrated Silicon Solution, Inc. –
www.issi.com
R1.1, 3/7/2012
1
Description
The IS31AP4913 evaluation board is a fully assembled
and tested PCB. The IS31AP4913 is a high quality
stereo headphone driver with 3D-surround and bass
enhancement capability. It also features removal of the
output DC-blocking capacitors for a reduction in
system component count and end cost. 3D-surround
and bass-enhancement are controlled via RC network.
Features
Supply voltage range from 2.7V to 5.5V
Low output noise (8µV)
High SNR (102dB)
-92dB
PSRR
No output DC-blocking capacitors
Pulse Count Control serial interface
Available in QFN-20(3mm × 3mm) package
Quick start
Figure 1 Photo of IS31AP4913 Evaluation Board
Recommended Equipment
5.0V, 2A power supply
Audio source (i.e. MP3 player, Notebook PC, etc.)
Headphone
(32
Ω
)
Absolute Maximum Ratings
≤
5.5V power supply
Caution: Do not exceed the conditions listed above; otherwise, the
board risks permanent damage.
Procedure
The evaluation board allows verification of
IS31AP4913 device operation.
Caution: Do not turn on the power supply until all connections are
completed.
1. Connect headphone (32
Ω
) to the connector
(headphone input jack).
2. Connect the ground terminal of the power supply
to the GND and the positive terminal to the VCC.
3. Alternatively, connect DC power to connector (DC
IN).
4. Connect the audio sources to the INR terminal
(right channel) and INL terminal (left channel); or
connect audio source directly to connector
(AUDIO- IN).
5. Turn on the power supply, and pay attention to the
supply current. Be cautious: currents above
200mA are large enough to cause board damage.
6. Turn on the audio source.
Ordering Information
Part No.
Temperature Range
IC Package
IS31AP4913-QFLS2-EB -40
°
C to +85
°
C (Industrial)
QFN-20, Lead-free
Table 1. Ordering Information
For pricing, delivery, and ordering information, please contact ISSI at
or (408) 969-6600
