參數(shù)資料
型號: LC74798
廠商: Sanyo Electric Co.,Ltd.
英文描述: On-Screen Display Controller IC(屏幕顯示控制器芯片)
中文描述: 屏幕顯示控制器IC(屏幕顯示控制器芯片)
文件頁數(shù): 5/32頁
文件大?。?/td> 271K
代理商: LC74798
No. 5833-5/32
LC74798, 74798M
Continued from preceding page.
Notes: (1): When the sync level = 0.8 V
(2): When the sync level = 1.0 V
(3): When the sync level = 1.4 V
The values in parentheses for the background high and low levels are for blue background mode.
Note: The OSD timing applies when the CMOS output circuit type is used.
Parameter
Symbol
Conditions
Ratings
Unit
min
typ
max
CV
OUT
: V
DD
1 = 5.0 V,
V
DD
2 = 5.0 V
(1)
1.23 (1.16)
V
Background color low level
V
RSL
(2)
1.43 (1.36)
V
(3)
1.83 (1.76)
V
CV
OUT
: V
DD
1 = 5.0 V,
V
DD
2 = 5.0 V
(1)
2.37 (2.01)
V
Background color high level
V
RSH
(2)
2.57 (2.21)
V
(3)
2.97 (2.61)
V
CV
OUT
: V
DD
1 = 5.0 V,
V
DD
2 = 5.0 V
(1)
1.50
V
Frame level 0
V
BK
0
(2)
1.70
V
(3)
2.10
V
CV
OUT
: V
DD
1 = 5.0 V,
V
DD
2 = 5.0 V
(1)
2.08
V
Frame level 1
V
BK
1
(2)
2.28
V
(3)
2.68
V
CV
OUT
: V
DD
1 = 5.0 V,
V
DD
2 = 5.0 V
(1)
2.65
V
Character level
V
CHA
(2)
2.85
V
(3)
3.25
V
Parameter
Symbol
Conditions
Ratings
Unit
min
typ
max
OSD write (See figure 1.)
Minimum input pulse width
t
W (SCLK)
t
W (CS1)
t
SU (CS1)
t
SU (SIN)
t
h (CS1)
t
h (SIN)
t
word
t
wt
SCLK1
200
ns
CS1 (The period when CS1 is high)
1
μs
Data setup time
CS1
200
ns
SIN1
200
ns
Data hold time
CS1
2
μs
SIN1
200
ns
One word write time
The 8-bit data write time
4.2
μs
The RAM data write time
1
μs
PDC/VPS write (For the n-channel open-drain output circuit type. See figure 2)
t
CKCY
t
CKL
t
CKH
t
ICK
t
CKO
SCLK2
2
μs
Minimum input pulse width
SCLK2
1
μs
SCLK2
1
μs
Setup time
SCLK2
10
μs
Output delay time
DOUT
0.5
μs
Timing Characteristics
at Ta = –30 to +70°C, V
DD
1 = 5 ±0.5 V
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