AD9245(RevE) データシートの表示（PDF） - Analog Devices
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AD9245 Datasheet PDF : 32 Pages
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AD9245
Data Sheet
SWITCHING SPECIFICATIONS
AVDD = 3 V, DRVDD = 2.5 V, unless otherwise noted.
Table 6.
Parameter
CLOCK INPUT PARAMETERS
Maximum Conversion Rate
Minimum Conversion Rate
CLK Period
CLK Pulse Width High1
CLK Pulse Width Low1
DATA OUTPUT PARAMETERS
Output Delay2 (tPD)
Pipeline Delay (Latency)
Aperture Delay (tA)
Aperture Uncertainty Jitter (tJ)
Wake-Up Time3
OUT-OF-RANGE RECOVERY TIME
AD9245BCP-20
Min Typ Max
20
1
50.0
15.0
15.0
3.5
7
1.0
0.5
3.0
1
AD9245BCP-40
Min Typ Max
40
1
25.0
8.8
8.8
3.5
7
1.0
0.5
3.0
1
AD9245BCP-65
Min Typ Max
65
1
15.4
6.2
6.2
3.5
7
1.0
0.5
3.0
2
AD9245BCP-80
Min Typ Max
80
1
12.5
4.6
4.6
4.2
7
1.0
0.3
7.0
2
Unit
MSPS
MSPS
ns
ns
ns
ns
Cycles
ns
ps rms
ms
Cycles
1 For the AD9245BCP-65 and AD9245BCP-80 models only, with duty cycle stabilizer enabled. DCS function not applicable for AD9245BCP-20 and AD9245BCP-40
models.
2 Output delay is measured from CLK 50% transition to DATA 50% transition, with 5 pF load on each output.
3 Wake-up time is dependent on value of decoupling capacitors; typical values shown with 0.1 μF and 10 μF capacitors on REFT and REFB.
ANALOG
INPUT
N
N+1
N+2
N+8
N–1
tA
N+3
N+4
N+7
N+5
N+6
CLK
DATA
OUT
N–9
N–8
N–7
N–6
N–5
N–4
N–3
N–2 N–1
N
tPD
=
6.0ns
2.0ns
MAX
MIN
Figure 2. Timing Diagram
Rev. E | Page 8 of 32
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