AD1986A Analog Devices, AD1986A Datasheet - Page 11

• Manufacturer Part Number: AD1986A
• Description: HD Audio SoundMAX Codec
• Manufacturer: Analog Devices

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Table 19. Analog Input/Output
Mnemonic
PCBEEP
PHONE_IN
AUX_L
AUX_R
CD_L
CD_GND
CD_R
MIC_1
MIC_2
LINE_IN_L
LINE_IN_R
CENTER_OUT
LFE_OUT
HEADPHONE_L
HEADPHONE_R
LINE_OUT_L
LINE_OUT_R
MONO_OUT
SURR_OUT_L
SURR_OUT_R
Table 20. Filter/Reference
Mnemonic
VREF_FILT
VREF_OUT (MIC)
VREF_OUT
(LINE_IN)
VREF_OUT (C/LFE)
Table 21. Power and Ground
Mnemonic
DV
DV
AV
AV
DD
SS
DD
SS
Pin Number
1, 9
4, 7
25, 34, 38, 42,
46
26, 30, 40, 44
Pin
Number
12
13
14
15
18
19
20
21
22
23
24
31
32
39
41
43
45
37
35
36
27
28
33
Pin
Number
29
Input/
Ouput
N/A
N/A
N/A
N/A
I
I
I/O
O
O
Input/
Ouput
I
I
I
I
I
I
I
I
I
I/O
O
O
O
I/O
I/O
Input/
Ouput
O
O
O
O
Description
Digital Supply Voltage (3.3 V).
Digital Supply Return (Ground).
Analog Supply Voltage (5.0 V). AV
degrade performance.
Analog Supply Return (Ground).
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).
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).
Programmable Voltage Reference Output (Intended for MIC Bias on the C/LFE Channels).
Rev. 0 | Page 11 of 56
DD
supplies should be well filtered because supply noise will
AD1986A