AD1986A 데이터 시트보기 (PDF) - Analog Devices

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AD1986A

AC ’97 and HD Audio SoundMAX Codec

Analog Devices 

AD1986A

PIN CONFIGURATION AND FUNCTION DESCRIPTION

48 47 46 45 44 43 42 41 40 39 38 37

DVDD 1

AC97CK 2

GPO 3

DVSS 4

SDATA_OUT 5

BIT_CLK 6

DVSS 7

SDATA_IN 8

DVDD 9

SYNC 10

RESET 11

PCBEEP 12

PIN 1

IDENTIFIER

AD1986A

TOP VIEW

(Not to Scale)

36 SURR_OUT_R

35 SURR_OUT_L

34 AVDD

33 VREF_OUT (C/LFE)

32 LFE_OUT

31 CENTER_OUT

30 AVSS

29 VREF_OUT (LINE_IN)

28 VREF_OUT (MIC_1/2)

27 VREF_FILT

26 AVSS

25 AVDD

13 14 15 16 17 18 19 20 21 22 23 24

Table 16. Pin Function Descriptions

Mnemonic

Pin Number

AC ’97CK

2

SDATA_OUT

5

BIT_CLK

6

SDATA_IN

8

SYNC

10

RESET

11

Figure 2. Pin Configuration

Input/Ouput

I

I

I/O

I/O

I

I

Description

External Clock In (14.31818 MHz) for AC ’97 Operation. Clock or DVSS

must be stable before reset deasserts.

Tied to digital ground for HD audio operation.

Link Serial Data Output. Input Stream.

Link Bit Clock, 12.288 MHz Serial Data Clock Output for AC ‘97, 24

MHz Input for HD Audio.

Link Serial Data Input. Output stream.

Link Frame Sync.

Link Reset, Master Hardware Reset.

Table 17. Digital Input/Output

Pin

Mnemonic Number

Input/

Output

S/PDIF_OUT 48

O

EAPD

47

O

GPO

3

O

Description

S/PDIF Output.

External Amplifier Power-Down Output. In HD audio mode this is part of LINE_OUT widget.

General-Purpose Output Pin. A digital signal that can be used to control external circuitry.

Table 18. Jack Sense

Mnemonic

JACK_SENSE_A

JACK_SENSE_B

Pin Number

16

17

Input/Ouput Description

I

JackSense 0–3 Input.

I

Jack Sense 4–7 Input.

Rev. 0 | Page 10 of 56

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