AD1885JST 데이터 시트보기 (PDF) - Analog Devices
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AD1885JST Datasheet PDF : 27 Pages
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AD1885–SPECIFICATIONS
Digital I/O
Pin Name
XTL_IN
XTL_OUT
SDATA_OUT
BIT_ CLK
SDATA_IN
SYNC
RESET
LQFP
2
3
5
6
8
10
11
CHIP SELECTS
Pin Name
ID0
ID1
LQFP
45
46
PIN FUNCTION DESCRIPTIONS
I/O Description
I
Crystal (or Clock) Input, 24.576 MHz.
O
Crystal Output.
I
AC-Link Serial Data Output, AD1885 Input Stream.
O/I AC-Link Bit Clock. 12.288 MHz Serial Data Clock. Daisy Chain Input Clock.
O
AC-Link Serial Data Input. AD1885 Output Stream.
I
AC-Link Frame Sync.
I
AC-Link Reset. AD1885 Master H/W Reset.
Type
I
I
Description
Chip Select Input 0 (Active Low).
Chip Select Input 1 (Active Low).
JACK SENSES/EAPD/GENERAL-PURPOSE DIGITAL OUTPUTS
These signals can sense the presence of audio jacks in the line-out or headphones outputs, and automatically mute the other audio
outputs. JS0 can also be programmed for EAPD control. Alternatively, both pins can be programmed as general-purpose digital outputs.
Pin Name
JS0
JS1
LQFP
47
48
Type
I/O
I/O
Description
JACK Sense Input 0 (Mutes Mono Output).
JACK Sense Input 1 (Mutes Line_Out and Mono Outputs, or Line_Out Only).
Analog I/O
These signals connect the AD1885 component to analog sources and sinks, including microphones and speakers.
Pin Name
PC_BEEP
PHONE_IN
AUX_L
AUX_R
VIDEO_L
VIDEO_R
CD_L
CD_GND_REF
CD_ R
MIC1
MIC2
LINE_IN_L
LINE_IN_R
LINE_OUT_L
LINE_OUT_R
MONO_OUT
HP_OUT_L
HP_OUT_R
LQFP
12
13
14
15
16
17
18
19
20
21
22
23
24
35
36
37
39
41
I/O Description
I
PC Beep. PC speaker beep passthrough.
I
Phone Input. From telephony subsystem speakerphone or handset.
I
Auxiliary Input Left Channel.
I
Auxiliary Input Right Channel.
I
Video Audio Left Channel.
I
Video Audio Right Channel.
I
CD Audio Left Channel.
I
CD Audio Analog Ground Reference for Differential CD Input.
I
CD Audio Right Channel.
I
Microphone 1. Desktop microphone input.
I
Microphone 2. Second microphone input.
I
Line In Left Channel.
I
Line In Right Channel.
O
Line Out Left Channel.
O
Line Out Right Channel.
O
Monaural Output to Telephony Subsystem Speakerphone.
O
Headphones Out Left Channel.
O
Headphones Out Right Channel.
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