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參數資料
| 型號： | LM1246AAA/NA |
| 廠商： | NATIONAL SEMICONDUCTOR CORP |
| 元件分類： | 音頻／視頻放大 |
| 英文描述： | 3 CHANNEL, VIDEO PREAMPLIFIER, PDIP24 |
| 封裝： | PLASTIC, DIP-24 |
| 文件頁數： | 45/51頁 |
| 文件大小： | 2794K |
| 代理商： | LM1246AAA/NA |
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DAC Output Electrical Characteristics
Unless otherwise noted: T
for Min and Max parameters and (Note 6) for Typicals. DAC parameters apply to all 4 DACs.
Symbol
Parameter
Conditions
Min
Typ
Max
Units
V
Min DAC
Min Output Voltage of DAC
Register Value = 0x00
0.5
0.7
V
Max DAC
Mode 00
Max Output Voltage of DAC
Register Value = 0xFF,
DCF[1:0] = 00b
3.7
4.2
V
Max DAC
Mode 01
Max Output Voltage of DAC in
DCF Mode 01
Register Value = 0xFF,
DCF[1:0] = 01b
1.85
2.35
V
Max DAC
(Temp)
DAC Output Voltage Variation
with Temperature
0 < T < 70C ambient
±0.5
mV/C
V
Max DAC (VCC)
DAC Output Voltage Variation
with V
CC
V
CC varied from 4.75V to 5.25V, DAC
register set to mid-range (0x7F)
50
mV
Linearity
Linearity of DAC over its Range
5
%
Monotonicity
Monotonicity of the DAC
Excluding Dead Zones
±0.5
LSB
I
MAX
Max Load Current
1.0
mA
System Interface Signal Characteristics
Unless otherwise noted: T
for Min and Max parameters and (Note 6) for Typicals. DAC parameters apply to all 4 DACs.
Symbol
Parameter
Conditions
Min
Typ
Max
Units
V
VTH+
VFLYBACK Positive Switching
Guarantee
Vertical Blanking triggered
2.0
V
SPOT
Spot Killer Voltage
CC Adjusted to
Activate
3.4
3.9
4.3
V
Ref
V
Ref Output Voltage (pin 2)
1.25
1.45
1.65
V
IL (SCL, SDA)
Logic Low Input Voltage
0.5
1.5
V
IH (SCL, SDA)
Logic High Input Voltage
3.0
V
CC +
0.5
V
I
L (SCL, SDA)
Logic Low Input Current
SDA or SCL, Input Voltage = 0.4V
±10
A
I
H (SCL, SDA)
Logic High Input Voltage
SDA or SCL, Input Voltage = 4.5V
±10
A
V
OL (SCL, SDA)
Logic Low Output Voltage
I
O = 3 mA
0.5
V
f
H Min
Minimum Horizontal Frequency
PLL & OSD Functioning; PPL = 0
25
kHz
f
H Max
Maximum Horizontal Frequency
PLL & OSD Functioning; PPL = 4
110
kHz
I
HFB IN Max
Horizontal Flyback Input
Current Absolute Maximum during
Flyback
5mA
I
IN
Peak Current during Flyback
Design Value
4
mA
I
HFB OUT Max
Horizontal Flyback Input Current
Absolute Maximum during Scan
700
A
I
OUT
Peak Current during Scan
Not exact - Duty Cycle Dependent
550
A
I
IN THRESHOLD
I
IN H-Blank Detection Threshold
0
A
t
H-BLANK ON
H-Blank Time Delay - On
+ Zero crossing of I
HFB to 50% of
output blanking start. I
24 = +1.5mA
45
ns
t
H-BLANK OFF
H-Blank Time Delay - Off
Zero crossing of I
HFB to 50% of
output blanking end. I
24 = 100A
85
ns
V
BLANK Max
Maximum Video Blanking Level
Test Setting 4, AC input signal
0
0.25
V
f
FREERUN
Free Run H Frequency, Including
H Blank
42
kHz
t
PW CLAMP
Minimum Clamp Pulse Width
See (Note 15)
200
ns
V
CLAMP MAX
Maximum Low Level Clamp
Pulse Voltage
Video Clamp Functioning
2.0
V
LM1246
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5
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相關代理商/技術參數 |
參數描述 |
|---|---|
| LM1246AAC/NA | 制造商:Rochester Electronics LLC 功能描述: 制造商:Texas Instruments 功能描述:IC 150MHZ RGB PREAMP 1246 DIP24 |
| LM1246AAC/NA/NOPB | 功能描述:IC PREAMP RGB 150MHZ 24-DIP RoHS:是 類別:集成電路 (IC) >> 線性 - 視頻處理 系列:- 產品變化通告:Product Discontinuation 07/Mar/2011 標準包裝:3,000 系列:OMNITUNE™ 類型:調諧器 應用:移動電話，手機，視頻顯示器 安裝類型:表面貼裝 封裝/外殼:65-WFBGA 供應商設備封裝:PG-WFSGA-65 包裝:帶卷 (TR) 其它名稱:SP000365064 |
| LM1246NA | 制造商:NSC 制造商全稱:National Semiconductor 功能描述:150 MHz I2C Compatible RGB Preamplifier with Internal 512 Character OSD ROM, 512 Character RAM and 4 DACs |
| LM1247 | 制造商:NSC 制造商全稱:National Semiconductor 功能描述:150 MHz I2C Compatible RGB Preamplifier with Internal 512 Character OSD ROM, 512 Character RAM and 4 DACs |
| LM1247AAG/NA | 功能描述:IC PREAMP CMOS 150MHZ 24DIP RoHS:否 類別:集成電路 (IC) >> 線性 - 視頻處理 系列:- 產品變化通告:Product Discontinuation 07/Mar/2011 標準包裝:3,000 系列:OMNITUNE™ 類型:調諧器 應用:移動電話，手機，視頻顯示器 安裝類型:表面貼裝 封裝/外殼:65-WFBGA 供應商設備封裝:PG-WFSGA-65 包裝:帶卷 (TR) 其它名稱:SP000365064 |
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