ADV7128
TIMING CHARACTERISTICS
Parameter
f
MAX
t
1
t
2
t
3
t
4
t
5
t
6
t
7
t
83
80 MHz Version
80
3
2
12.5
4
4
30
20
3
12
1
(V
AA
= +5 V
5%; V
REF
= +1.235 V; R
L
= 37.5 , C
L
= 10 pF; R
SET
= 560
All specifications T
MIN
to T
MAX2
unless otherwise noted.)
30 MHz Version
30
8
2
33.3
9
9
30
20
3
15
Units
MHz max
ns min
ns min
ns min
ns min
ns min
ns max
ns typ
ns max
ns typ
.
50 MHz Version
50
6
2
20
7
7
30
20
3
15
Conditions/Comments
Clock Rate
Data & Control Setup Time
Data & Control Hold Time
Clock Cycle Time
Clock Pulse Width High Time
Clock Pulse Width Low Time
Analog Output Delay
Analog Output Rise/Fall Time
Analog Output Transition Time
NOTES
1
TTL input values are 0 to 3 volts, with input rise/fall times
≤3
ns, measured between the 10% and 90% points. Timing reference points at 50% for inputs
and outputs. See timing notes in Figure 1.
2
Temperature range (T
MIN
to T
MAX
): 0°C to +70°C
3
Sample tested at +25°C to ensure compliance.
Specifications subject to change without notice.
t
4
t
5
CLOCK
t
3
t
1
DIGITAL INPUTS
D0–D9
DATA
t
2
t
6
t
8
ANALOG OUTPUTS
(I
OUT
)
NOTES
t
7
1. OUTPUT DELAY (
t
6
) MEASURED FROM THE 50% POINT OF THE RISING EDGE OF THE CLOCK TO THE 50%
POINT OF FULL-SCALE TRANSITION.
2. TRANSITION TIME (
t
8
) MEASURED FROM THE 50% POINT OF FULL-SCALE TRANSITION TO WITHIN 2% OF THE
FINAL OUTPUT VALUE.
3. OUTPUT RISE/FALL TIME (
t
7
) MEASURED BETWEEN THE 10% AND 90% POINTS OF FULL-SCALE TRANSITION.
Figure 1. Video Input/Output Timing
RECOMMENDED OPERATING CONDITIONS
Parameter
Power Supply
Ambient Operating
Temperature
Output Load
Reference Voltage
Symbol
V
AA
T
A
R
L
V
REF
Min
4.75
0
1.14
37.5
1.235
Typ
5.00
Max
5.25
+70
1.26
Units
Volts
°C
Ω
Volts
Model
Speed
ORDERING GUIDE
Accuracy Temperature
DNL INL Range
±
1
±
1
±
1
0°C to +70°C
0°C to +70°C
0°C to +70°C
Package
Option*
R-28
R-28
R-28
ADV7128KR80 80 MHz
±
1
ADV7128KR50 50 MHz
±
1
ADV7128KR30 30 MHz
±
1
*R = SOIC.
REV. 0
–3–
AD [ ANALOG DEVICES ]
