Datasheet

REV. D
–4–
AD9214–SPECIFICATIONS
SWITCHING SPECIFICATIONS
Test AD9214-65 AD9214-80 AD9214-105
Parameter Temp Level Min Typ Max Min Typ Max Min Typ Max Unit
ENCODE INPUT PARAMETERS*
Maximum Conversion Rate Full VI 65 80 105 MSPS
Minimum Conversion Rate Full IV 20 20 20 MSPS
Encode Pulsewidth High (t
EH
) Full IV 6.0 5.0 3.8 ns
Encode Pulsewidth Low (t
EL
) Full IV 6.0 5.0 3.8 ns
Aperture Delay (t
A
)25°C V 2.0 2.0 2.0 ns
Aperture Uncertainty (Jitter) 25°C V 3 3 3 ps rms
DATA OUTPUT PARAMETERS
Pipeline Delays Full IV 5 5 5 Clock Cycle
Output Valid Time (t
V
)* Full V 3.0 4.5 3.0 4.5 3.0 4.5 ns
Output Propagation Delay* (t
PD
) Full V 4.5 6.0 4.5 6.0 4.5 6.0 ns
TRANSIENT RESPONSE TIME 25°CV555ns
OUT-OF-RANGE RECOVERY TIME 25°CV555ns
* t
V
and t
PD
are measured from the 1.5 V level of the ENCODE input to the 50% levels of the digital output swing. The digital output load during test is not to exceed
an ac load of 5 pF or a dc current of ±40 µA.
Specifications subject to change without notice.
A
IN
ENCODE
D9 – D0
SAMPLE N
SAMPLE N+1
SAMPLE N+2
SAMPLE N+3
SAMPLE N+4
SAMPLE N+5
t
A
t
EH
t
EL
1/F
S
t
PD
t
V
DATA N–5 DATA N–4 DATA N–3 DATA N–2 DATA N–1 DATA N
Figure 1. Timing Diagram
(AV
DD
= 3 V, DrV
DD
= 3 V; ENCODE = Maximum Conversion Rate; T
MIN
= –40ⴗC, T
MAX
= +85ⴗC;
external 1.25 V voltage reference used, unless otherwise noted.)