AD1981BLJST Analog Devices Inc, AD1981BLJST Datasheet - Page 31

IC CODEC STEREO MICPREAMP 48LQFP

AD1981BLJST

Manufacturer Part Number
AD1981BLJST
Description
IC CODEC STEREO MICPREAMP 48LQFP
Manufacturer
Analog Devices Inc
Series
SoundMAX®r
Type
Audio Codec '97r
Datasheet

Specifications of AD1981BLJST

Data Interface
Serial
Resolution (bits)
16, 20 b
Number Of Adcs / Dacs
4 / 2
Sigma Delta
No
Dynamic Range, Adcs / Dacs (db) Typ
85 / 90
Voltage - Supply, Analog
4.5 V ~ 5.5 V
Voltage - Supply, Digital
3 V ~ 3.47 V
Operating Temperature
0°C ~ 70°C
Mounting Type
Surface Mount
Package / Case
48-LQFP
Lead Free Status / RoHS Status
Contains lead / RoHS non-compliant

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VENDOR ID REGISTERS
Index 0x7C–0x7E
Reg No.
0x7C
S[7:0] This register is ASCII encoded to A.
F[7:0] This register is ASCII encoded to D.
Reg No.
0x7E
T[7:0] This register is ASCII encoded to S.
REV[7:0] Vendor-specific revision number: The AD1981BL assigns 0x74 to this field.
Table 44. Codec ID and External Clock Selection
ID1
1
1
0
0
Internally, the ID pins have weak pull-ups and are inverted.
Name
Vendor ID2
Name
Vendor ID1
ID0
1
0
1
0
Codec ID
(00) Primary
(01) Secondary
(00) Primary
(00) Primary
D15
T7
D15
F7
D14
T6
D14
F6
D13
T5
D13
F5
D12
T4
D12
F4
D11
T3
D11
F3
Codec Clocking Source
24.576 MHz
12.288 MHz
48.000 MHz
14.31818 MHz
D10
T2
Rev. A | Page 31 of 32
D10
F2
D9
T1
D8
T0
D9
F1
D7
REV7
D8
F0
Local crystal or external into XTL_IN.
External into BIT_CLK.
External into XTL_IN.
External into XTL_IN.
D6
REV6
D7
S7
D6
S6
D5
REV5
D5
S5
D4
REV4
D4
S4
D3
REV3
D3
S3
D2
REV2
D2
S2
D1
REV1
D1
S1
AD1981BL
D0
REV0
S0
D0
Default
0x4144
Default
0x5374

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