ADV7800
Data Sheet
TIMING CHARACTERISTICS
AVDD = 3.15 V to 3.45 V, DVDD = 1.75 V to 1.85 V, DVDDIO = 3.0 V to 3.6 V, DVDDIO_SDRAM = 2.35 V to 2.65 V (DDR),
DVDDIO_SDRAM = 3.2 V to 3.4 V (SDR), PVDD = 1.71 V to 1.89 V. T A = 0°C to 85°C, unless otherwise noted.
Table 3.
Parameter 1
Symbol
Test Conditions
Min
Typ
Max
Unit
SYSTEM CLOCK AND CRYSTAL
Crystal Nominal Frequency
Crystal Frequency Stability
28.63636
±50
MHz
ppm
Horizontal Sync Input Frequency
LLC Frequency Range
14.8
12.825
90
150
kHz
MHz
I 2 C PORT
SCLK Frequency
400
kHz
SCLK Minimum Pulse Width High
SCLK Minimum Pulse Width Low
Hold Time (Start Condition)
Setup Time (Start Condition)
SDA Setup Time
SCLK and SDA Rise Time
SCLK and SDA Fall Time
Setup Time (Stop Condition)
t 1
t 2
t 3
t 4
t 5
t 6
t 7
t 8
0.6
1.3
0.6
0.6
100
0.6
300
300
μs
μs
μs
μs
ns
ns
ns
μs
FAST I 2 C PORT 2
SCLK Frequency
3.4
MHz
SCLK Minimum Pulse Width High
SCLK Minimum Pulse Width Low
Hold Time (Start Condition)
Setup Time (Start Condition)
SDA Setup Time
t 1
t 2
t 3
t 4
t 5
60
160
160
160
10
ns
ns
ns
ns
ns
SCLK and SDA Rise Time
SCLK and SDA Fall Time
Setup Time (Stop Condition)
t 6
t 7
t 8
10
10
160
80
80
ns
ns
ns
RESET FEATURE
Reset Pulse Width
CLOCK OUTPUTS
5
ms
LLC Mark Space Ratio
t 9 , t 10
45:55
55:45
% duty cycle
DATA AND CONTROL OUTPUTS 3
Data Output Transition Time, SDR (SD Core)
Data Output Transition Time, SDR (SD Core)
Data Output Transition Time, SDR (CP Core)
Data Output Transition Time, SDR (CP Core)
t 11
t 12
t 13
t 14
Negative clock edge to start of
valid data
End of valid data to negative
clock edge
Negative clock edge to start of
valid data
End of valid data to negative
clock edge
4.5
0
2.5
0.2
ns
ns
ns
ns
DATA AND CONTROL INPUTS 4
Input Setup Time (Digital Input Port)
t 17
HS_IN1, VS_IN1
9.5
ns
HS_IN2, VS_IN2
DE_IN, data inputs
2
ns
Input Hold Time (Digital Input Port)
t 18
HS_IN1, VS_IN1
?4
ns
HS_IN2, VS_IN2
1
2
3
4
DE_IN, data inputs
Guaranteed by characterization.
With a bus line load less than 100 pF.
Timing figures obtained using default drive strength value.
TTL input values are 0 V to 3 V, with rise/fall times ≥ 3 ns, measured between the 10% and 90% points.
Rev. C | Page 6 of 28
0.8
ns
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