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參數(shù)資料
| 型號： | LM1229 |
| 廠商： | National Semiconductor Corporation |
| 英文描述： | I2C Compatible CMOS TV RGB and Deflection Processor |
| 中文描述： | I2C兼容的CMOS電視RGB和偏轉(zhuǎn)處理器 |
| 文件頁數(shù)： | 5/27頁 |
| 文件大?。?/td> | 969K |
| 代理商： | LM1229 |
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OSD Electrical Characteristics
(Continued)
Unless otherwise noted: T
A
= 25C, V
CC
= +5.0V. See (Note 7) for Min and Max parameters and (Note 6) for Typicals.
Symbol
Parameter
BOTH MODES
I
LOW
Low input current (OSD and
Enable).
I
HIGH
High input current (OSD and
Enable).
SEP
10 kHz
Crosstalk from video
@
10 kHz.
See (Note 17).
SEP
10 MHz
Crosstalk from video
@
10 MHz.
See (Note 17).
Conditions
Min
Typ
Max
Units
V
IN
= 0V
3.0
μA
V
IN
= 5V
.001
μA
70
50
dB
dB
DAC Output Electrical Characteristics
Unless otherwise noted: T
A
= 25C, V
CC
= +5.0V, V
IN
= 0.7V, V
ABL
= V
CC
, C
L
= 10 pF, Video Outputs = 2.4 V
P-P
. See (Note 7)
for Min and Max parameters and (Note 6) for Typicals. DAC parameters apply to all 3 DACs.
Symbol
Parameter
Conditions
Min
Typ
0.5
Max
Units
V
V
DAC MIN
V
DAC MAX MODE 0
Minimum DAC output voltage
Maximum DAC output voltage (full
scale)
Maximum DAC output voltage (half
scale)
DAC output voltage variation with
temperature
DAC output voltage variation with
V
CC
Register Value = 0x00
Register Value = 0xFF,
GLOBAL[5] = 0.
Register Value = 0xFF,
GLOBAL[5] = 1.
0C
<
T
<
70C ambient
4.2
V
V
DAC MAX MODE 1
2.1
V
V
DAC TEMP
0.5
mV/C
V
DAC VCC
4.75V
≤
V
CC
≤
5.25V,
DAC register set to mid-range
(0x7F)
50
mV
Linearity
Monotonicity
Linearity of DAC over its range
Monotonicity of the DAC excluding
dead zones
Maximum DAC output load current
5
%
0.5
+0.5
LSB
I
MAX
1.0
mA
Deflection Signal Characteristics
Unless otherwise noted: T
= 25C, V
CC
= +5.0V, V
IN
= 0.7V, V
ABL
= V
CC
, C
L
= 10 pF, See (Note 7) for Min and Max param-
eters and (Note 6) for Typicals.
Symbol
Parameter
Conditions
Min
Typ
12
Max
Units
MHz
f
XTL
V
HFB
Ceramic resonator input frequency
Switching threshold for detecting
horizontal flyback on pin 18.
Flyback Width
DC bias point of VFB input
Switching threshold for detection
X-Ray Threshold Voltage
2.4
V
t
FW
V
VFB-DC
V
VFB-SW
V
X-RAY
1
μs
V
V
1.25
1.75
Above V
X-RAY
the HDRIVE output is
disabled (high)
V
CC
required to reset X-Ray
(ceramic resonator tolerance)
2.5
3.2
V
V
CCforXRAYRESET
f
FR
f
CR
t
HDPHASE
t
PARCOR
t
BOWCOR
X-Ray Reset
Free-run frequency tolerance
PLL capture range
Horizontal phase control range
Maximum parallelogram correction
Maximum pin balance (bow)
correction
HEHT phase shift left (R
EHT
= 20k)
HEHT phase shift right (R
EHT
=
20k)
HDRIVE Max low level output
4
V
%
%
±
1
±
6
±
25
±
1
All scan frequencies
Measured at 31 kHz
Measured at 31 kHz
%T
H
μs
±
0.5
μs
H
EHT
H
EHT+
HEHT[3:0] = 0011b and V
20
= 1.5V
HEHT[3:0] = 0111b and V
20
= 3.5V
2.7
%T
H
2.8
%T
H
V
HDOL
I
OL
= 10 mA
0.7
V
L
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