AD1985JST Analog Devices Inc, AD1985JST Datasheet - Page 12

• Manufacturer Part Number: AD1985JST
• Description: IC CODEC STEREO 6-DAC 20B 48LQFP
• Manufacturer: Analog Devices Inc
• Series: SoundMAX®r
• Type: Audio Codec '97r

Specifications of AD1985JST

• Rohs Status: RoHS non-compliant
• Data Interface: Serial
• Resolution (bits): 16, 20 b
• Number Of Adcs / Dacs: 2 / 6
• Sigma Delta: No
• Dynamic Range, Adcs / Dacs (db) Typ: 84 / 90
• Voltage - Supply, Analog: 4.5 V ~ 5.5 V
• Voltage - Supply, Digital: 2.97 V ~ 3.63 V
• Operating Temperature: 0°C ~ 70°C
• Mounting Type: Surface Mount
• Package / Case: 48-LQFP

AD1985
Table 20. Analog I/O
Mnemonic
PHONE_IN
AUX_L
AUX_R
CD_L
CD_GND_REF
CD_R
MIC1
MIC2
LINE_IN_L
LINE_IN_R
CENTER_OUT
LFE_OUT
LINE_OUT_L/SURR_L
LINE_OUT_R/SURR_R
MONO_OUT
SURR_OUT_L/HP_OUT_L
SURR_OUT_R/HP_OUT_R
Table 21. Filter/Reference
Mnemonic
V
V
AFILT1
AFLIT2
Table 22. Power and Ground Signals
Mnemonic
DV
DV
DV
DV
AV
AV
AV
AV
AV
AV
AV
Table 23. No Connects
Mnemonic
NC
REF
REFOUT
DD1
SS1
DD4
DD2
SS2
DD3
SS3
DD1
SS1
SS2
DD2
Pin No.
27
28
29
30
Pin No.
13
14
15
18
19
20
21
22
23
24
31
32
35
36
37
39
41
Pin No.
1
4
7
9
25
26
34
38
40
43
44
Pin No.
42
I
I
I
I
I
I
I
I
I
I
I/O
I/O
O
O
O
O
N/A
I/O
O
O
O
I/O
O
O
Type
I
I
I
I
I
I
I
I
I
I
I
Type
Description
Monaural Line-Level Input.
Auxiliary Input, Left Channel.
Auxiliary Input, Right Channel.
CD Audio Left Channel.
CD Audio Analog Ground Reference for Differential CD Input.
CD Audio Right Channel.
Microphone 1 Input.
Microphone 2 Input.
Line In Left Channel.
Line In Right Channel.
Center Channel Output or Input to Recorder (depending on OMS bit in Reg 0x74).
Low Frequency Enhanced Output or Input to Recorder (depending on OMS bit in Reg 0x74).
Line Out (Front) Left Channel or Surround Left Channel (depending on LOSEL bit in Reg 0x76).
Line Out (Front) Right Channel or Surround Right Channel (depending on LOSEL bit in Reg 0x76).
Monaural Output to Telephony Subsystem Speakerphone.
Surround or Front Headphone Left Channel Output (depending on HPSEL bit in Reg 0x76).
Surround or Front Headphone Right Channel Output (depending on HPSEL bit in Reg 0x76).
Description
Voltage Reference Filter.
Voltage Reference Output (Intended for Mic Bias).
Antialiasing Filter Capacitor—ADC Right Channel.
Antialiasing Filter Capacitor—ADC Left Channel.
Description
Digital V
Digital Ground.
Digital Ground.
Digital V
Analog V
Analog Ground.
Analog V
Analog V
Analog Ground.
Analog V
Analog Ground.
Description
No Connect.
DD
DD
DD
DD
DD
DD
: 3.3 V.
: 3.3 V.
: 5.0 V.
: 5.0 V.
: 5.0 V.
: 5.0 V.
Rev. A | Page 12 of 48