AD1986 Просмотр технического описания (PDF) - Analog Devices
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AD1986 Datasheet PDF : 52 Pages
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AD1986
Table 26. 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.
Monaural 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).
Monaural 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 27. 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 28. Power and Ground
Input/
Mnemonic Pin Number Ouput
DVDD
1
9
DVSS
4
7
AVDD
25
34
38
I
42
46
AVSS
26
30
40
44
Description
Digital Supply Voltage (3.3 V).
Digital Supply Return (Ground).
Analog Supply Voltage (5.0 V or 3.3 V). AVDD supplies should be well filtered because supply
noise will degrade audio performance.
Analog Supply Return (Ground).
Rev. 0 | Page 14 of 52
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