AD1884A

Rev. 0

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Page 11 of 20

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March 2008

POWER AND GROUND

FILTER

1

I/O

CAUTION: DO NOT APPLY 3.3 V TO THIS PIN! Filter connection for internal core

voltage regulator.

1.0

μF, and 0.1μF connected in parallel between Pin 1 and DV

Pin 9 MUST be connected to Pin 1 in this case.

3

I

Link Digital I/O Voltage Reference. 3.3 V

± 10% or 1.5 V ± 5.5%

7

I

Digital Supply Return (Ground).

I

Digital Supply Voltage 3.3 V

± 10%. This is regulated down to DV

supply the internal digital core internal to the AD1884A. Direct, filtered 1.7 V to 1.9 V

connected to Pin 1 in this case.

25, 38

I

CAUTION: DO NOT APPLY 5 V TO THESE PINS! Analog Supply Voltage 3.3 V

± 5%.

audio performance.

26, 42

I

conductive trace under, or close to, the AD1884A.

Table 4. Pin Function Descriptions (Continued)

Mnemonic

Pin No.

I/O

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.