STAC9751XXTAEC1X IDT, Integrated Device Technology Inc, STAC9751XXTAEC1X Datasheet - Page 72

• Manufacturer Part Number: STAC9751XXTAEC1X
• Manufacturer: IDT, Integrated Device Technology Inc

Specifications of STAC9751XXTAEC1X

• Single Supply Voltage (typ): 3.3/5V
• Single Supply Voltage (min): 3.135V
• Single Supply Voltage (max): 3.465/5.25V
• Package Type: TQFP
• Lead Free Status / RoHS Status: Compliant

16. REVISION HISTORY
IDT™
VALUE-LINE TWO-CHANNEL AC’97 CODECS
Revision
STAC9750/9751
VALUE-LINE TWO-CHANNEL AC’97 CODECS
5.2
5.3
5.4
5.5
5.6
5.7
5.8
30 October 2006
December 2005
February 2005
October 2003
January 2005
March 2005
June 2004
Date
Corrected error on page 26: Slot 1 Status Address Port, bit D2 is a SLot Request not Reserved as
stated in rev 5.1
Added CD_GND elaboration note on connection diagram, pin list and pin out diagrams:
The CD_GND signal is an AC signal return for the two CD input channels. It is normally biased at
about 2.5V. The name of the pin in the AC97 specification is CD_GND, and this has confused many
designers. It should not have any DC path to GND. Connecting the CD_GND signal directly to
ground will change the internal bias of the entire CODEC, and cause significant distortion. If there is
no analog CD input, then this pin can be No-Connect.
Corrected Note 4 in performance characteristics, was missing the text “Ratio of Full Scale signal to
THD+N output with -3dB signal, measured “A weighted” over a”. Complete note now reads “Ratio of
Full Scale signal to THD+N output with -3dB signal, measured “A weighted” over a 20 Hz to a 20
KHz bandwidth. 48 KHz Sample Frequency”.
Added updated 48-pin package drawing. Added reflow profile information.
Revised reflow profile information
Revised TQFP to say LQFP.
Updated with new logo template
Added Part order information for RoHS package, with EOL information to Pb-bearing
Removed references to older revisions (CA3) and their relationship to CC1, as CA3 is EOL and CC1
is the only production revision.
Initial release in IDT format.
72
Description of Change
STAC9750/9751
PC AUDIO
V 5.8 103106