Datasheet

AD9640
Rev. B | Page 11 of 52
Parameter Temp
AD9640ABCPZ-80
AD9640BCPZ-80
AD9640ABCPZ-105/
AD9640BCPZ-105
Unit
Min Typ Max Min Typ Max
CMOS Mode Pipeline Delay (Latency) Full 12 12 Cycles
LVDS Mode Pipeline Delay (Latency)
Channel A/Channel B
12/12.5 12/12.5 Cycles
Aperture Delay (t
A
) Full 1.0 1.0 ns
Aperture Uncertainty (Jitter, t
J
) Full 0.1 0.1 ps rms
Wake-Up Time
3
Full 350 350 μs
OUT-OF-RANGE RECOVERY TIME Full 2 2 Cycles
1
Conversion rate is the clock rate after the divider.
2
Output propagation delay is measured from CLK 50% transition to DATA 50% transition, with 5 pF load.
3
Wake-up time is dependent on the value of the decoupling capacitors.
SWITCHING SPECIFICATIONS—AD9640ABCPZ-125, AD9640BCPZ-125, AD9640ABCPZ-150, AND
AD9640BCPZ-150
AVDD = 1.8 V, DVDD = 1.8V, DRVDD = 3.3 V, maximum sample rate, VIN = −1.0 dBFS differential input, 1.0 V internal reference, DCS
enabled, unless otherwise noted.
Table 7.
Parameter Temperature
AD9640ABCPZ-125/
AD9640BCPZ-125
AD9640ABCPZ-150/
AD9640BCPZ-150
Unit
Min Typ Max Min Typ Max
CLOCK INPUT PARAMETERS
Input Clock Rate Full 625 625 MHz
Conversion Rate
DCS Enabled
1
Full 20 125 20 150 MSPS
DCS Disabled
1
Full 10 125 10 150 MSPS
CLK Period—Divide by 1 Mode (t
CLK
) Full 8 6.66 ns
CLK Pulse Width High
Divide by 1 Mode, DCS Enabled Full 2.4 4 5.6 2.0 3.33 4.66 ns
Divide by 1 Mode, DCS Disabled Full 3.6 4 4.4 3.0 3.33 3.66 ns
Divide by 2 Mode, DCS Enabled Full 1.6 1.6 ns
Divide by 3 Through 8, DCS Enabled Full 0.8 0.8 ns
DATA OUTPUT PARAMETERS (DATA, FD)
CMOS Mode—DRVDD = 3.3 V
Data Propagation Delay (t
PD
)
2
Full 2.2 4.5 6.4 2.2 4.5 6.4 ns
DCO Propagation Delay (t
DCO
) Full 3.8 5.0 6.8 3.8 5.0 6.8 ns
Setup Time (t
S
) Full 4.5 3.83 ns
Hold Time (t
H
) Full 3.5 2.83 ns
CMOS Mode—DRVDD = 1.8 V
Data Propagation Delay (t
PD
)
2
Full 2.4 5.2 6.9 2.4 5.2 6.9 ns
DCO Propagation Delay (t
DCO
) Full 4.0 5.6 7.3 4.0 5.6 7.3 ns
LVDS Mode—DRVDD = 1.8 V
Data Propagation Delay (t
PD
)
2
Full 3.0 3.8 4.5 3.0 3.8 4.5 ns
DCO Propagation Delay (t
DCO
) Full 5.0 6.2 7.4 4.8 5.9 7.3 ns
CMOS Mode Pipeline Delay (Latency) Full 12 12 Cycles
LVDS Mode Pipeline Delay (Latency)
Channel A/Channel B
12/12.5 12/12.5 Cycles
Aperture Delay (t
A
) Full 1.0 1.0 ns
Aperture Uncertainty (Jitter, t
J
) Full 0.1 0.1 ps rms
Wake-Up Time
3
Full 350 350 μs
OUT-OF-RANGE RECOVERY TIME Full 3 3 Cycles
1
Conversion rate is the clock rate after the divider.
2
Output propagation delay is measured from CLK 50% transition to DATA 50% transition, with 5 pF load.
3
Wake-up time is dependent on the value of the decoupling capacitors.