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HMP9701ACN Datasheet

  • HMP9701ACN

  • AC’97 Audio Codec

  • 20頁

  • INTERSIL   INTERSIL

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Semiconductor
November 1998
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HMP9701A
AC鈥?7 Audio Codec
Features
鈥?Compliant with the Audio Codec 鈥?7 Standard
Description
The HMP9701A is the next generation PC based audio codec
solution. The HMP9701A is compliant to the new AC鈥?7 stan-
鈥?High Fidelity 16-Bit
危鈭?/div>
Converters
dard and, as such, interfaces to any AC鈥?7 compliant digital
[ /Title (HMP9701A)
- DAC SNR 87dB
controller. The HMP9701A offers the designer a solution to sat-
/Subject
SNR 85dB
Audio Codec)
- ADC
(AC鈥?7
isfy the demand for 鏗俥xibility and improved High Fidelity sound
/Author ()
A/D for Microphone Pass-Through
in a PC environment. As part of the AC鈥?7 PC audio standard
鈥?Additional
architecture, the HMP9701A helps pave the way for PC鈥?7
/Keywords (Harris Semiconductor, Audio Codecs, PC
鈥?AC Link Serial Interface Compatible with AC鈥?7 Digital
Audio, PC鈥?8, PC98, PC 98, PC鈥?9, PC 99, PC99,
compliant desktop, portable and entertainment PCs with a cost
Controllers
effective high-quality audio solution.
THD, PCI Audio, AC97, AC鈥?7, AC 97, AC鈥?8, AC 98,
鈥?Fixed 48kHz Sampling Rate
As the analog front end of the AC鈥?7 chipset, the HMP9701A
鈥?6 Channel Input Mixer
AC98, SNR, AC Link, PC鈥?7, PC 97, PC97, GAM
accepts line level audio inputs from seven different sources and
PCI Sound, Total Harmonic Distortion, Signal to Noise
converts the analog audio to 16-bit digital streams of either ste-
鈥?Programmable Powerdown Modes
Ratio, Record Gain
reo or mono data. The 48 kss data is transmitted to the control-
ler via the AC鈥?7 standard 鏗乿e wire interface. The controller
)
鈥?48 Lead TQFP Package
sends digital audio data to the HMP9701A to be converted to
/Creator ()
鈥?Single +5V Supply
analog stereo or monaural line output using two DACs.
/DOCINFO pdfmark
We include an additional ADC to be used for Acoustic Echo
Applications
Canceling needed for video conferencing applications. This
[ /PageMode /UseOutlines
ADC has a dedicated microphone input. It has the same high
鈥?Multimedia PC Applications
quality performance as the stereo ADCs. The small 48 lead
/DOCVIEW
PCs
- Desk Top
pdfmark
- Notebook PCs
- PCI Sound Cards
- Motherboards
鈥?Video Conferencing
鈥?Speaker Phones
TQFP (Thin 1.5mm and 7mm x 7mm footprint Quad Flat Pack-
age) makes it easy to locate the analog codec close to the ana-
log sources. Thus, reducing noise and lowering the cost of
implementation.
Ordering Information
Page
PART NUMBER
HMP9701ACN
HMP9701EVAL2
TEMP.
RANGE (
o
C)
0 to 70
PACKAGE
48 Ld TQFP
鈥?/div>
PKG. NO.
Q48.7x7A
Table of Contents
Functional Block Diagram . . . . . . . . . . . . . . . . . . . . . . . . . . 2
Functional Description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2
Serial Digital Interface . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3
Control Register Description . . . . . . . . . . . . . . . . . . . . . . . . 8
Pinout . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11
Pin Descriptions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11
AC and DC Electrical Speci鏗乧ations . . . . . . . . . . . . . . . . . 13
ADC/DAC Filter Response Curves . . . . . . . . . . . . . . . . . . 17
AC Timing Waveforms . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18
Schematic Diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19
Package Dimensions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21
PCI Bus Evaluation Board (Includes codec)
鈥?/div>
TQFP is also known as PQFP and MQFP.
CAUTION: These devices are sensitive to electrostatic discharge. Users should follow proper IC Handling Procedures.
Copyright
漏
Harris Corporation 1998
File Number
4473.1
1

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