BU9969KN_09 Datasheet, PDF (3/14 Pages) Rohm – Video bus interface

BU9969KN
Technical Note
●Recommended Operating Conditions
Table.3 Recommended Operating Conditions
(Unless otherwise specified Ta=25C, DVDD=PVDD=1.8V, IOVDD=AVDD=3.0V, GND=0V)
Item
Symbol
Min Typ Max
Unit
Condition
<Image data interface>
SYSCLK frequency 1
fsysclk1
-
27
-
MHz
656 input mode
SYSCLK frequency 2
fsysclk2
-
13.5
-
MHz
601 input mode
SYSCLK frequency deviation 1 dfsysclk1 -100
-
100
ppm
27MHz at 656 input mode
SYSCLK frequency deviation 2 dfsysclk2 -100
-
100
ppm
13.5MHz at 601 input mode
SYSCLK rise time
t2r
-
-
5
ns
*1
SYSCLK fall time
t2f
-
-
5
ns
*1
SYSCLK duty
dutysclk
45
-
55
%
*1
<Serial interface>
SCLK frequency
f_SCLK
-
-
400
kHz
SCLK rise time
t1sr
-
-
300
ns
*1
SCLK fall time
t1sf
-
-
300
ns
*1
SDI rise time
t1dr
-
-
300
ns
*1
SDI fall time
t1df
-
-
300
ns
*1
SCLK ”L” pulse width
t1wl
1.3
-
-
ｕs
*1
SCLK ”H” pulse width
t1wh
0.6
-
-
ｕs
*1
*1 Refer to Fig.5 the serial interface-timing chart on page 9.
●Electric Characteristics 1
Table 4.1 Electric Characteristics 1
(Unless otherwise specified Ta=25C, DVDD=PVDD=1.8V, IOVDD=AVDD=3.0V, GND=0V)
Item
Symbol
Min
<Image data interface>
Data setup time
t2sd
5
Data hold time
t2hd
8
HS, VS setup time
t2sc
5
HS, VS hold time
t2hc
8
<Serial interface>
Data hold time
ｔ1ｈ
0
Data setup time
t1s
100
Hold time (START)
t1hSTA
0.6
Setup time (STOP)
t1sSTO
0.6
Setup time (START)
t1sSTA
0.6
Bus free time
tBUF
1.3
Between "STOP" condition
and "START" condition
Typ
Max Unit
-
-
ns
-
-
ns
-
-
ns
-
-
ns
-
0.9
ｕs
-
-
ns
-
-
ｕs
-
-
ｕs
-
-
ｕs
-
-
ｕs
*1 Refer to Fig.3., the image data and synchronous signal-timing chart on page 8.
*2 Refer to Fig.5., the serial interface timing chart on page 9.
Condition
*1
*1
*1
*1
*2
*2
*2
*2
*2
*2
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2009.05 - Rev.A