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AD1887–SPECIFICATIONS
CLOCK SPECIFICATIONS*
Parameter
Input Clock Frequency
Recommended Clock Duty Cycle
POWER-DOWN STATES
Parameter
ADC
DAC
ADC + DAC
ADC + DAC + Mixer (Analog CD On)
Mixer
ADC + Mixer
DAC + Mixer
ADC + DAC + Mixer
Analog CD Only (AC-Link On)
Analog CD Only (AC-Link Off)
Standby
Headphone Standby
*Guaranteed but not tested.
Specifications subject to change without notice.
TIMING PARAMETERS (GUARANTEED OVER OPERATING TEMPERATURE RANGE)
Parameter
RESET Active Low Pulsewidth
RESET Inactive to BIT_CLK Startup Delay
SYNC Active High Pulsewidth
SYNC Low Pulsewidth
SYNC Inactive to BIT_CLK Startup Delay
BIT_CLK Frequency
BIT_CLK Period
BIT_CLK Output Jitter*
BIT_CLK High Pulsewidth
BIT_CLK Low Pulsewidth
SYNC Frequency
SYNC Period
Setup to Falling Edge of BIT_CLK
Hold from Falling Edge of BIT_CLK
BIT_CLK Rise Time
BIT_CLK Fall Time
SYNC Rise Time
SYNC Fall Time
SDATA_IN Rise Time
SDATA_IN Fall Time
SDATA_OUT Rise Time
SDATA_OUT Fall Time
End of Slot 2 to BIT_CLK, SDATA_IN Low
Setup to Trailing Edge of RESET (Applies to SYNC, SDATA_OUT)
Rising Edge of RESET to HI-Z Delay
Propagation Delay
RESET Rise Time
Output Valid Delay from Rising Edge of BIT_CLK to SDI Valid
*Output jitter is directly dependent on crystal input jitter.
Specifications subject to change without notice.
Set Bits
PR0
PR1
PR1, PR0
LPMIX, PR1, PR0
PR2
PR2, PR0
PR2, PR1
PR2, PR1, PR0
LPMIX, PR5, PR1, PR0
LPMIX, PR1, PR0, PR4, PR5
PR5, PR4, PR3, PR2, PR1, PR0
PR6
–4–
Min
Typ
24.576
40
50
DV
Typ
DD
15.82
15.08
3.79
3.85
17.65
15.70
15.07
3.80
3.85
0.06
0.06
17.66
Symbol
Min
t
RST_LOW
t
162.8
RST2CLK
t
SYNC_HIGH
t
SYNC_LOW
t
162.8
SYNC2CLK
t
CLK_PERIOD
t
32.56
CLK_HIGH
t
32.56
CLK_LOW
t
SYNC_PERIOD
t
5
SETUP
t
5
HOLD
t
2
RISECLK
t
2
FALLCLK
t
2
RISESYNC
t
2
FALLSYNC
t
2
RISEDIN
t
2
FALLDIN
t
2
RISEDOUT
t
2
FALLDOUT
t
0
S2_PDOWN
t
15
SETUP2RST
t
OFF
Max
Unit
MHz
60
%
AV
Typ
Unit
DD
30.0
mA
26.3
mA
19.9
mA
18.1
mA
17.4
mA
11.1
mA
8.3
mA
2.1
mA
18.1
mA
18.1
mA
0
mA
26.1
mA
Typ
Max
Unit
µs
1.0
ns
µs
1.3
µs
19.5
ns
12.288
MHz
81.4
ns
750
ps
42
48.84
ns
38
48.84
ns
48.0
kHz
µs
20.8
2.5
ns
ns
4
6
ns
4
6
ns
4
6
ns
4
6
ns
4
6
ns
4
6
ns
4
6
ns
4
6
ns
µs
1.0
ns
25
ns
15
ns
50
ns
15
ns
REV. 0
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