AD1989B 데이터 시트보기 (PDF) - Analog Devices
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AD1989B Datasheet PDF : 20 Pages
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AD1989B
Table 4. Pin Function Descriptions
Mnemonic
Pin No. Function
Description
DIGITAL INTERFACE
SDATA_OUT
5
BIT_CLK
6
SDATA_IN
8
SYNC
10
RESET
11
DIGITAL I/O
S/PDIF-OUT_2/GPIO_0 2
S/PDIF_IN/GPIO_1
47
S/PDIF-OUT_1/GPIO_2 48
JACK SENSE
SENSE_A/SRC_B
13
SENSE_B/SRC_A
34
SENSE_C
30
ANALOG I/O
PCBEEP
12
Port-E_L
14
Port-E_R
15
Port-F_L
16
Port-F_R
17
CD_L/LINE_IN_L
18
CD_GND
19
CD_R/LINE_IN_R
20
Port-B_L
21
Port-B_R
22
Port-C_L
23
Port-C_R
24
Port-D_L
35
Port-D_R
36
Port-A_L
39
MONO_OUT
40
Port-A_R
41
Port-G_L
43
Port-G_R
44
Port-H_L
45
Port-H_R
46
FILTER/REFERENCE
MIC_BIAS-B/EAPD-B 28
MIC_BIAS-C/EAPD-C 29
MIC_BIAS-E/EAPD-E 31
MIC_BIAS-D/EAPD-D 32
MIC_BIAS-A/EAPD-A 37
I
Link Serial Data Output. Clocked on both edges of BIT_CLK.
I
Link Bit Clock. 24.000 MHz serial data clock.
I/O
Link Serial Data Input. AD1989B output stream clocked only on one edge of BIT_CLK.
I
Link Frame Sync.
I
Link Reset. Master hardware reset.
I/O
S/PDIF Out or GPIO. Supports S/PDIF output as primary function.
I/O
S/PDIF Input/General-Purpose Input/Output Pin. Supports S/PDIF input as primary
function.
I/O
S/PDIF_OUT or GPIO. Supports S/PDIF output as primary function.
I/O
JACK Sense A-D Input/Sense B drive.
I/O
JACK Sense E-H Input/Sense A drive.
I
JACK Sense CD/Line inputs.
LI
Monaural Input From System for Analog PCBeep.
LI, MIC, LO, SWAP Auxiliary Input/Output Left Channel.
LI, MIC, LO, SWAP Auxiliary Input/Output Right Channel.
LO
Auxiliary Input/Surround Rear (5.1) Left Channel.
LO
Auxiliary Input/Surround Rear (5.1) Right Channel.
LI
CD Audio Left Channel.
LI
CD Audio Analog Ground Reference (for Differential CD Input). Must be connected to
AGND via 0.1 μF capacitor if not in use as CD_GND.
LI
CD Audio Right Channel.
LI, MIC, HP, LO Front Panel Stereo MIC/Line-In.
LI, MIC, HP, LO Front Panel Stereo MIC/Line-In.
LI, MIC, LO
Rear Panel Stereo MIC/Line-In.
LI, MIC, LO
Rear Panel Stereo MIC/Line-In.
LI, HP, LO
Rear Panel Headphone/Line-Out.
LI, HP, LO
Rear Panel Headphone/Line-Out.
LI, MIC, HP, LO Front Panel Headphone/Line-Out.
LO
Monaural Output to Internal Speaker or Telephony Subsystem Speakerphone.
LI, MIC, HP, LO Front Panel Headphone/Line-Out.
LO, SWAP
Rear Panel C/LFE Output.
LO, SWAP
Rear Panel C/LFE Output.
LO
Rear Panel Surround Center/Side (7.1).
LO
Rear Panel Surround Center/Side (7.1).
O
Switchable Microphone Bias. For use with Port B (Pins 21, 22).
O
Switchable Microphone Bias. For use with Port C (Pins 23, 24).
O
Switchable Microphone Bias. For use with Port E (Pins 14, 15).
O
Switchable Microphone Bias. For use with Port D (Pins 35, 36)
O
Switchable Microphone Bias. For use with Port A (Pins 39, 41)
All MIC_BIAS pins are capable of:
High-Z, 0 V, 1.65 V, 3.78 V, and 3.95 V (with 5.0 V on Pin 33)
VREF_FILT
DVCORE
27
O
1
O
High-Z, 0 V, 1.65 V, 2.86 V, and 3.00 V (with 3.3 V on Pin 33).
Voltage Reference Filter.
CAUTION: DO NOT APPLY 3.3 V TO THIS PIN!
Filter connection for internal core voltage regulator.
This pin must be connected to filter caps: 10 μF, 1.0 μF, and 0.1 μF connected in
parallel between Pin 1 and DVSS (Pin 4).
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, SWAP = outputs can swap L/R channels (typically used
to support C/LFE or shared C/LFE function).
Rev. 0 | Page 10 of 20 | August 2008
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