AD1986A 데이터 시트보기 (PDF) - Analog Devices

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AD1986A

AC ’97 and HD Audio SoundMAX Codec

Analog Devices 

AD1986A

Table 19. Analog Input/Output

Mnemonic

Pin

Number

Input/

Ouput

PCBEEP

12

I

PHONE_IN

13

I

AUX_L

14

I

AUX_R

15

I

CD_L

18

I

CD_GND

19

I

CD_R

20

I

MIC_1

21

I

MIC_2

22

I

LINE_IN_L

23

I

LINE_IN_R

24

I

CENTER_OUT 31

I/O

LFE_OUT

32

I/O

HEADPHONE_L 39

O

HEADPHONE_R 41

O

LINE_OUT_L

43

O

LINE_OUT_R

45

O

MONO_OUT

37

O

SURR_OUT_L 35

I/O

SURR_OUT_R 36

I/O

Description

Analog PC Beep Input. Routed to all output capable pins when RESET is asserted.

Mono Line Level Input.

Auxiliary Left Channel Input.

Auxiliary Right Channel Input.

CD-Audio-Left Channel.

CD-Audio-Analog-Ground-Reference (for Differential CD Input).

CD-Audio-Right Channel.

Microphone 1 or Line-In-Left Input (See LISEL Bits in Register 0x76).

Microphone 2 or Line-In-Right Input (See LISEL Bits in Register 0x76).

Line-In-Left Channel or Microphone 1 Input (See OMS Bits in Register 0x74).

Line-In-Right Channel or Microphone 2 Input (See OMS Bits in Register 0x74).

Center-Channel Output or Microphone 1 Input (See OMS Bits in Register 0x74).

Low-Frequency-Enhanced Output or Microphone 2 Input (See OMS Bits in Register 0x74).

Headphone-Out-Left Channel (See HPSEL Bits in Register 0x76).

Headphone-Out-Right Channel (See HPSEL Bits in Register 0x76).

Line-Out (Front)—Left Channel (See LOSEL Bit in Register 0x76) (HP Drive-Capable).

Line-Out (Front)—Right Channel (See LOSEL Bit in Register 0x76) (HP Drive-Capable).

Mono Output to Telephony Subsystem Speakerphone.

Surround-Left Channel Output or Line-In-Left Input (See LISEL and SOSEL Bits in Register 0x76).

Surround-Right Channel Output or Line-In-Right Input (See LISEL and SOSEL Bits in

Register 0x76).

Table 20. Filter/Reference

Mnemonic

Pin

Number

VREF_FILT

27

VREF_OUT (MIC)

28

VREF_OUT

29

(LINE_IN)

VREF_OUT (C/LFE) 33

Input/

Ouput

O

O

O

Description

Voltage Reference Filter.

Programmable Voltage Reference Output (Intended for MIC Bias on the MIC_1/2 Channels).

Programmable Voltage Reference Output (Intended for MIC Bias on the LINE_IN Channels).

O

Programmable Voltage Reference Output (Intended for MIC Bias on the C/LFE Channels).

Table 21. Power and Ground

Input/

Mnemonic Pin Number Ouput

DVDD

1, 9

N/A

DVSS

4, 7

N/A

AVDD

25, 34, 38, 42, N/A

46

AVSS

26, 30, 40, 44 N/A

Description

Digital Supply Voltage (3.3 V).

Digital Supply Return (Ground).

Analog Supply Voltage (5.0 V). AVDD supplies should be well filtered because supply noise will

degrade performance.

Analog Supply Return (Ground).

Rev. 0 | Page 11 of 56

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