Timing Specifications; Data Outputs; Serial Interface - Analog Devices AD9843A User Manual

TIMING SPECIFICATIONS

Parameter
SAMPLE CLOCKS
DATACLK, SHP, SHD Clock Period
DATACLK High/Low Pulsewidth
SHP Pulsewidth
SHD Pulsewidth
CLPDM Pulsewidth
1
CLPOB Pulsewidth
SHP Rising Edge to SHD Falling Edge
SHP Rising Edge to SHD Rising Edge
Internal Clock Delay
Inhibited Clock Period

DATA OUTPUTS

Output Delay
Output Hold Time
Pipeline Delay

SERIAL INTERFACE

Maximum SCK Frequency
SL to SCK Setup Time
SCK to SL Hold Time
SDATA Valid to SCK Rising Edge Setup
SCK Falling Edge to SDATA Valid Hold
SCK Falling Edge to SDATA Valid Read
NOTES
1
Minimum CLPOB pulsewidth is for functional operation only. Wider typical pulses are recommended to achieve low noise clamp performance.
Specifications subject to change without notice.
ABSOLUTE MAXIMUM RATINGS
With
Respect
Parameter To
AVDD1, AVDD2 AVSS
DVDD1, DVDD2 DVSS
DRVDD DRVSS
Digital Outputs DRVSS
SHP, SHD, DATACLK DVSS
CLPOB, CLPDM, PBLK DVSS
SCK, SL, SDATA DVSS
VRT, VRB, CMLEVEL AVSS
BYP1-4, CCDIN AVSS
Junction Temperature
Lead Temperature
(10 sec)
CAUTION
ESD (electrostatic discharge) sensitive device. Electrostatic charges as high as 4000 V readily
accumulate on the human body and test equipment and can discharge without detection. Although
the AD9843A features proprietary ESD protection circuitry, permanent damage may occur on
devices subjected to high-energy electrostatic discharges. Therefore, proper ESD precautions are
recommended to avoid performance degradation or loss of functionality.
(C = 20 pF, f = 20 MHz, CCD-Mode Timing in Figures 5 and 6, AUX-Mode Timing in Figure 7.
L SAMP
Serial Timing in Figures 8–10.)
Symbol
t
CONV
t
ADC
t
SHP
t
SHD
t
CDM
t
COB
t
S1
t
S2
t
ID
t
INH
t
OD
t
H
f
SCLK
t
LS
t
LH
t
DS
t
DH
t
DV
Min Max Unit
–0.3 +3.9 V
–0.3 +3.9 V
–0.3 +3.9 V
–0.3 DRVDD + 0.3 V
–0.3 DVDD + 0.3 V
–0.3 DVDD + 0.3 V
–0.3 DVDD + 0.3 V
–0.3 AVDD + 0.3 V
–0.3 AVDD + 0.3 V
°C
150
°C
300
Min Typ
48 50
20 25
7 12.5
7 12.5
4 10
2 20
0 12.5
20 25
3.0
10
14.5
7.0 7.6
9
10
10
10
10
10
10
ORDERING GUIDE
Temperature
Model Range
AD9843AJST –20°C to +85°C
THERMAL CHARACTERISTICS
Thermal Resistance
48-Lead LQFP Package
θ
= 92°C
JA
AD9843A
Max Unit
ns
ns
ns
ns
Pixels
Pixels
ns
ns
ns
ns
16 ns
ns
Cycles
MHz
ns
ns
ns
ns
ns
Package Package
Description Option
Thin Plastic ST-48
Quad Flatpack
(LQFP)
WARNING!
ESD SENSITIVE DEVICE