Datasheet

Data Sheet AD9237
Rev. B | Page 5 of 24
AD9237BCP-20 AD9237BCP-40 AD9237BCP-65
Parameter Min Typ Max Min Typ Max Min Typ Max Unit
SPURIOUS-FREE DYNAMIC RANGE (SFDR)
f
INPUT
= 2.4 MHz 88.0 83.5 85.5 dBc
f
INPUT
= 9.7 MHz 72.4 87.5 dBc
f
INPUT
= 19.6 MHz 72.2 82.4 dBc
f
INPUT
= 34.2 MHz 69.4 80.1 dBc
f
INPUT
= 70 MHz 80.5 77.9 74.9 dBc
WORST HARMONIC (SECOND OR THIRD)
f
INPUT
= 2.4 MHz −88.0 −83.5 −85.5 dBc
f
INPUT
= 9.7 MHz −72.4 −87.5 dBc
f
INPUT
= 19.6 MHz −72.2 −82.4 dBc
f
INPUT
= 34.2 MHz −69.4 −80.1 dBc
f
INPUT
= 70 MHz
−80.5
−77.9
−74.9
dBc
WORST OTHER SPUR
f
INPUT
= 2.4 MHz −90 −90 −90 dBc
f
INPUT
= 9.7 MHz −73.4 −90 dBc
f
INPUT
= 19.6 MHz −73.1 −90 dBc
f
INPUT
= 34.2 MHz −72.0 −90 dBc
f
INPUT
= 70 MHz −90 −90 −90 dBc
SWITCHING SPECIFICATIONS
Table 4.
AD9237BCP-20 AD9237BCP-40 AD9237BCP-65
Parameter Min Typ Max Min Typ Max Min Typ Max Unit
CLK INPUT PARAMETERS
Maximum Conversion Rate 20 40 65 MSPS
Minimum Conversion Rate 1 1 1 MSPS
CLK Period 50.0 25.0 15.4 ns
CLK Pulse Width High
1
15.0 8.8 6.2 ns
CLK Pulse Width Low
1
15.0 8.8 6.2 ns
DATA OUTPUT PARAMETERS
Output Delay (t
PD
)
2
3.5 3.5 3.5 ns
Pipeline Delay (Latency) 9 9 9 Cycles
Output Enable Time 6 6 6 ns
Output Disable Time 3 3 3 ns
Aperture Delay (t
A
) 1.0 1.0 1.0 ns
Aperture Uncertainty (Jitter, t
J
) 0.5 0.5 0.5 ps rms
Wake-Up Time (Sleep Mode)
3
3.0 3.0 3.0 ms
Wake-Up Time (Standby Mode)
3
3.0 3.0 3.0 µs
OUT-OF-RANGE RECOVERY TIME 1 1 2 Cycles
1
With duty cycle stabilizer enabled.
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.