AD1885JST Analog Devices Inc, AD1885JST Datasheet - Page 8

• Manufacturer Part Number: AD1885JST
• Description: IC AUDIO CODEC AC'97 48-LQFP
• Manufacturer: Analog Devices Inc
• Series: SoundMAX®r
• Type: Audio Codec '97r

Specifications of AD1885JST

• Rohs Status: RoHS non-compliant
• Data Interface: Serial
• Resolution (bits): 16 b
• Number Of Adcs / Dacs: 2 / 2
• Sigma Delta: Yes
• Dynamic Range, Adcs / Dacs (db) Typ: 87 / 90
• Voltage - Supply, Analog: 4.75 V ~ 5.25 V
• Voltage - Supply, Digital: 3.15 V ~ 3.45 V
• Operating Temperature: 0°C ~ 70°C
• Mounting Type: Surface Mount
• Package / Case: 48-LQFP

AD1885–SPECIFICATIONS
Digital I/O
Pin Name
XTL_IN
XTL_OUT
SDATA_OUT
BIT_ CLK
SDATA_IN
SYNC
RESET
CHIP SELECTS
Pin Name
ID0
ID1
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
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
2
3
5
8
10
47
48
12
13
14
15
16
17
18
19
21
22
23
24
35
36
37
39
41
LQFP
6
11
LQFP
45
46
LQFP
LQFP
20
I/O
I
O
I
O/I
O
I
I
Type
I
I
Type
I/O
I/O
I/O
I
I
I
I
I
I
I
I
I
I
I
I
I
O
O
O
O
O
PIN FUNCTION DESCRIPTIONS
Description
Crystal (or Clock) Input, 24.576 MHz.
Crystal Output.
AC-Link Serial Data Output, AD1885 Input Stream.
AC-Link Bit Clock. 12.288 MHz Serial Data Clock. Daisy Chain Input Clock.
AC-Link Serial Data Input. AD1885 Output Stream.
AC-Link Frame Sync.
AC-Link Reset. AD1885 Master H/W Reset.
Description
Chip Select Input 0 (Active Low).
Chip Select Input 1 (Active Low).
Description
JACK Sense Input 0 (Mutes Mono Output).
JACK Sense Input 1 (Mutes Line_Out and Mono Outputs, or Line_Out Only).
Description
PC Beep. PC speaker beep passthrough.
Phone Input. From telephony subsystem speakerphone or handset.
Auxiliary Input Left Channel.
Auxiliary Input Right Channel.
Video Audio Left Channel.
Video Audio Right Channel.
CD Audio Left Channel.
CD Audio Analog Ground Reference for Differential CD Input.
CD Audio Right Channel.
Microphone 1. Desktop microphone input.
Microphone 2. Second microphone input.
Line In Left Channel.
Line In Right Channel.
Line Out Left Channel.
Line Out Right Channel.
Monaural Output to Telephony Subsystem Speakerphone.
Headphones Out Left Channel.
Headphones Out Right Channel.