AD1887 Datasheet, PDF (4/16 Pages) Analog Devices – AC’97 SoundMAX Codec

AD1887–SPECIFICATIONS
CLOCK SPECIFICATIONS*
Parameter
Input Clock Frequency
Recommended Clock Duty Cycle
Min
Typ Max
24.576
40
50
60
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.
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
DV_DD Typ
15.82
15.08
3.79
3.85
17.65
15.70
15.07
3.80
3.85
0.06
0.06
17.66
AV_DD Typ
30.0
26.3
19.9
18.1
17.4
11.1
8.3
2.1
18.1
18.1
0
26.1
TIMING PARAMETERS (GUARANTEED OVER OPERATING TEMPERATURE RANGE)
Parameter
Symbol
Min
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
t_{RST_LOW}
t_RST2CLK
t_{SYNC_HIGH}
t_{SYNC_LOW}
t_SYNC2CLK
t_{CLK_PERIOD}
t_{CLK_HIGH}
t_{CLK_LOW}
t_{SYNC_PERIOD}
t_SETUP
t_HOLD
t_RISECLK
t_FALLCLK
t_RISESYNC
t_FALLSYNC
t_RISEDIN
t_FALLDIN
t_RISEDOUT
t_FALLDOUT
t_{S2_PDOWN}
t_SETUP2RST
t_OFF
162.8
162.8
32.56
32.56
5
5
2
2
2
2
2
2
2
2
0
15
*Output jitter is directly dependent on crystal input jitter.
Specifications subject to change without notice.
Typ Max
1.0
1.3
19.5
12.288
81.4
42
38
48.0
20.8
2.5
750
48.84
48.84
4
6
4
6
4
6
4
6
4
6
4
6
4
6
4
6
1.0
25
15
50
15
Unit
MHz
%
Unit
mA
mA
mA
mA
mA
mA
mA
mA
mA
mA
mA
mA
Unit
µs
ns
µs
µs
ns
MHz
ns
ps
ns
ns
kHz
µs
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
µs
ns
ns
ns
ns
ns
–4–
REV. 0