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AD1981BLJST データシート(PDF) 4 Page - Analog Devices

部品番号 AD1981BLJST
部品情報  AC ??7 SoundMAX짰 Codec
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メーカー  AD [Analog Devices]
ホームページ  http://www.analog.com
Logo AD - Analog Devices

AD1981BLJST データシート(HTML) 4 Page - Analog Devices

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REV. 0
–4–
AD1981BL
Parameter
Set Bits
DVDD Typ
AVDD Typ
Unit
POWER-DOWN STATES
*
(Fully Active)
(No Bits Value)
47.76
38.9
mA
ADC
PR0
40.1
34.39
mA
DAC
PR1
32.8
26.3
mA
ADC + DAC
PR1, PR0
13.2
20.55
mA
Mixer
PR2
47.7
19.39
mA
ADC + Mixer
PR2, PR0
40
14.86
mA
DAC + Mixer
PR2, PR1
32.77
6.39
mA
ADC + DAC + Mixer
PR2, PR1, PR0
13.9
1.15
mA
Standby
PR5, PR4, PR3, PR2, PR1, PR0
0
0
mA
Headphone Standby
PR6
47.7
32
mA
*Values presented with VREFOUT not loaded.
Specifications subject to change without notice.
Parameter
Symbol
Min
Typ
Max
Unit
RESET Active Low Pulse Width
tRST_LOW
1.0
ms
RESET Inactive to BIT_CLK Start-Up Delay
tRST2CLK
162.8
ns
SYNC Active High Pulse Width
tSYNC_HIGH
1.3
µs
SYNC Low Pulse Width
tSYNC_LOW
19.5
µs
SYNC Inactive to BIT_CLK Start-Up Delay
tSYNC2CLK
162.8
ns
BIT_CLK Frequency
12.288
MHz
BIT_CLK Frequency Accuracy
±1
ppm
BIT_CLK Period
tCLK_PERIOD
81.4
ns
BIT_CLK Output Jitter
1, 2, 3
750
2000
ps
BIT_CLK High Pulse Width
tCLK_HIGH
32.56
42
48.84
ns
BIT_CLK Low Pulse Width
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.
2Output jitter is directly dependent on crystal input jitter.
3Maximum jitter specification for noncrystal operation only. Crystal operation maximum is much lower.
Specifications subject to change without notice.
Parameter
Min
Typ
Max
Unit
CLOCK SPECIFICATIONS1
Input Clock Frequency
24.576
MHz
Recommended Clock Duty Cycle
40
50
60
%
NOTES
1Guaranteed but not tested.
2Measurements reflect main ADC.
Specifications subject to change without notice.
TIMING PARAMETERS (Guaranteed over Operating Temperature Range)
SPECIFICATIONS (continued)


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