AD1882 Analog Devices, AD1882 Datasheet - Page 10

• Manufacturer Part Number: AD1882
• Description: High Definition Audio SoundMAX Codec
• Manufacturer: Analog Devices

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AD1882
Table 8. AD1882 Pin Descriptions (Continued)
Mnemonic
POWER AND GROUND
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).
MIC_BIAS_IN
DV
DV
DV
AV
AV
DD
SS
I/O
SS
DD
(3.3 V)
(3.3V)
(3.3 V)
Pin No.
3
4, 7
9
25, 38
33
26, 42
Function
I
I
I
I
I
I
Rev. 0 | Page 10 of 16 | July 2007
Description
Connect to the I/O Voltage Used for the HD-Audio Controller Signals.
Digital Supply Return (Ground).
Digital Supply Voltage 3.3 V. This is regulated down to DV
internal digital core internal to the AD1882.
CAUTION: DO NOT APPLY 5.0 V TO THESE PINS!
Analog supply voltage 3.3 V ONLY.
Note: AV
audio performance.
Source Power for Microphone Bias Boost Circuitry.
Analog Supply Return (Ground). AV
conductive trace under, or close to, the AD1882.
DD
supplies should be well regulated and filtered as supply noise degrades
SS
should be connected to DV
CORE
on Pin 1 to supply the
SS
using a