Electronic Components Datasheet Search
  English  ▼

Delete All
ON OFF
ALLDATASHEET.COM

X  

Preview PDF Download HTML

AD1987 Datasheet(PDF) 11 Page - Analog Devices

Part No. AD1987
Description  High Definition Audio SoundMAX Codec
Download  18 Pages
Scroll/Zoom Zoom In 100% Zoom Out
Maker  AD [Analog Devices]
Homepage  http://www.analog.com
Logo AD - Analog Devices

AD1987 Datasheet(HTML) 11 Page - Analog Devices

Back Button AD1987 Datasheet HTML 7Page - Analog Devices AD1987 Datasheet HTML 8Page - Analog Devices AD1987 Datasheet HTML 9Page - Analog Devices AD1987 Datasheet HTML 10Page - Analog Devices AD1987 Datasheet HTML 11Page - Analog Devices AD1987 Datasheet HTML 12Page - Analog Devices AD1987 Datasheet HTML 13Page - Analog Devices AD1987 Datasheet HTML 14Page - Analog Devices AD1987 Datasheet HTML 15Page - Analog Devices Next Button
Zoom Inzoom in Zoom Outzoom out
 11 / 18 page
background image
AD1987
Rev. 0
|
Page 11 of 18
|
May 2007
POWER AND GROUND
DVIO 3.3 V
±10%
3
I
Connect to the I/O voltage used for the HD-audio controller signals.
DVSS
4, 7
I
Digital supply return (ground).
DVDD 3.3 V
±10%
9
I
Digital supply voltage 3.3 V. This is regulated down to Pin 1 to supply the internal
digital core.
AVDD 3.3 V
±5%
25, 38
I
CAUTION: DO NOT APPLY 5.0 V TO THESE PINS!
Analog supply voltage 3.3 V ONLY.
Note: AVDD supplies should be well regulated and filtered as supply noise degrades
audio performance.
MIC_BIAS_IN
33
I
Source for microphone bias boost circuitry.
Connect this pin to 5.0 V via a low-pass filter. When connected this way the AD1987 is
capable of providing +3.95 V as a mic bias to all of the mic bias pins.
If 5 V is not available, connect this pin to +3.3 V (AVDD) via a low-pass filter. The
AD1987 produces a mic bias voltage relative to the AVDD supply
(typically 3.0 V @ AVDD = 3.3 V).
AVSS
26, 42
I
Analog supply return (ground). AVSS should be connected to DVSS using a conductive
trace under, or close to, the AD1987.
Table 5. AD1987 Pin Descriptions (Continued)
Mnemonic
Pin No.
Function
Description
The symbols used in this table are defined as: I = Input, O = Output, LI = Line level input, LO = Line level output, HP = Output capable of driving
headphone load, MIC = Input supports microphones with MIC bias and boost amplifier, SWAP = Outputs can swap L/R channels (typically used
to support C/LFE or shared C/LFE function).


Html Pages

1  2  3  4  5  6  7  8  9  10  11  12  13  14  15  16  17  18 


Datasheet Download

Go To PDF Page


Link URL




Privacy Policy
ALLDATASHEET.COM
Does ALLDATASHEET help your business so far?  [ DONATE ]  

About Alldatasheet   |   Advertisement   |   Datasheet Upload   |   Contact us   |   Privacy Policy   |   Alldatasheet API   |   Link Exchange   |   Manufacturer List
All Rights Reserved© Alldatasheet.com


Mirror Sites
English : Alldatasheet.com  |   English : Alldatasheet.net  |   Chinese : Alldatasheetcn.com  |   German : Alldatasheetde.com  |   Japanese : Alldatasheet.jp
Russian : Alldatasheetru.com  |   Korean : Alldatasheet.co.kr  |   Spanish : Alldatasheet.es  |   French : Alldatasheet.fr  |   Italian : Alldatasheetit.com
Portuguese : Alldatasheetpt.com  |   Polish : Alldatasheet.pl  |   Vietnamese : Alldatasheet.vn