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AD1981A Datasheet(Fiches technique) 4 Page - Analog Devices

Numéro de pièce AD1981A
Description  AC ‘97 SoundMAX Codec
Télécharger  24 Pages
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Fabricant  AD [Analog Devices]
Site Internet  http://www.analog.com
Logo AD - Analog Devices

AD1981A Datasheet(HTML) 4 Page - Analog Devices

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REV. 0
?4?
AD1981A?SPECIFICATIONS
Parameter
Set Bits
DVDD Typ
AVDD Typ
Unit
POWER-DOWN STATES
3
(Fully Active)
(No Bits Value)
47
53
mA
ADC
PR0
39
47
mA
DAC
PR1
32
40
mA
ADC + DAC
PR1, PR0
13
34
mA
Mixer
PR2
47
21
mA
ADC + Mixer
PR2, PR0
39
16
mA
DAC + Mixer
PR2, PR1
32
8
mA
ADC + DAC + Mixer
PR2, PR1, PR0
13
1
mA
Standby
PR5, PR4, PR3, PR2, PR1, PR0
0
0
mA
Headphone Standby
PR6
47
40
mA
Parameter
Symbol
Min
Typ
Max
Unit
TIMING PARAMETERS
(Guaranteed over Operating Temperature Range)
RESET Active Low Pulsewidth
tRST_LOW
1.0
ms
RESET Inactive to BIT_CLK Start-Up Delay
tRST2CLK
162.8
ns
SYNC Active High Pulsewidth
tSYNC_HIGH
1.3
ms
SYNC Low Pulsewidth
tSYNC_LOW
19.5
SYNC Inactive to BIT_CLK Start-Up Delay
tSYNC2CLK
162.8
ns
BIT_CLK Frequency
12.288
MHz
BIT_CLK Period
tCLK_PERIOD
81.4
ns
BIT_CLK Output Jitter
1
750
48.84
ps
BIT_CLK High Pulsewidth
tCLK_HIGH
32.56
42
48.84
ns
BIT_CLK Low Pulsewidth
tCLK_LOW
32.56
38
ns
SYNC Frequency
48.0
kHz
SYNC Period
tSYNC_PERIOD
20.8
ms
Setup to Falling Edge of BIT_CLK
tSETUP
5
2.5
ns
Hold from Falling Edge of BIT_CLK
tHOLD
5ns
BIT_CLK Rise Time
tRISECLK
246
ns
BIT_CLK Fall Time
tFALLCLK
246
ns
SYNC Rise Time
tRISESYNC
246
ns
SYNC Fall Time
tFALLSYNC
246
ns
SDATA_IN Rise Time
tRISEDIN
246
ns
SDATA_IN Fall Time
tFALLDIN
246
ns
SDATA_OUT Rise Time
tRISEDOUT
246
ns
SDATA_OUT Fall Time
tFALLDOUT
246
ns
End of Slot 2 to BIT_CLK, SDATA_IN Low
tS2_PDOWN
0
1.0
ms
Setup to Trailing Edge of RESET
(Applies to SYNC, SDATA_OUT)
tSETUP2RST
15
ns
Rising Edge of RESET to HI-Z Delay
tOFF
25
ns
Propagation Delay
15
ns
RESET Rise Time
50
ns
Output Valid Delay from Rising Edge of BIT_CLK to SDI Valid
15
ns
NOTES
1Guaranteed but not tested.
2Measurement reflects main ADC.
3Values presented with V
REFOUT not loaded.
Specifications subject to change without notice.


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