SA3229 Datasheet, PDF (13/16 Pages) ON Semiconductor – Preconfigured DSP System

RHYTHM SA3229
standard programming boxes. I²C mode is a two−wire
interface which uses the SDA pin for bidirectional data and
CLK as the interface clock input. I²C programming support
is available on the HiPro (serial or USB versions) and
ON Semiconductor’s DSP Programmer 3.0.
Input Connection and Layout Considerations
It is recommended to connect unused audio input pins
directly to MGND to minimize the possibility of noise
pickup. Inputs are internally AC coupled, so there is no
additional leakage current when inputs are connected
directly to ground.
In order to further minimize noise at the inputs the following
guidelines are recommended:
• MGND is used as reference ground plane for input
signals. All input components should be grounded to
MGND. This ground plane should be isolated from all
other ground connections in the system.
• Keep the input traces as short as possible and avoid
routing traces near high noise sources such as the
OUT+ and OUT− pins
• Star ground input component grounds to the MGND
connection.
Unused trimmer inputs should also be connected to GND.
ORDERING INFORMATION
Device
SA3229−E1
Package
25 Pad Hybrid
Case 127DZ
Shipping^†
25 Units / Bubble Pack
SA3229−E1−T
25 Pad Hybrid
Case 127DZ
250 Units / Tape & Reel
†For information on tape and reel specifications, including part orientation and tape sizes, please refer to our Tape and Reel Packaging
Specifications Brochure, BRD8011/D.
Hybrid Jig Ordering Information
To order a Hybrid Jig Evaluation Board for SA3229 contact your Sales Account Manager or FAE and use part number
SA3404GEVB.
www.onsemi.com
13