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參數(shù)資料
| 型號(hào)： | LM98714 |
| 廠商： | National Semiconductor Corporation |
| 英文描述： | Three Channel, 16-Bit, 45 MSPS Digital Copier Analog Front End with Integrated CCD/CIS Sensor Timing Generator and LVDS Output |
| 中文描述： | 三通道，16位，45 MSPS的數(shù)碼復(fù)印機(jī)模擬前端與綜合防治荒漠化公約/獨(dú)聯(lián)體傳感器時(shí)序發(fā)生器和LVDS輸出 |
| 文件頁(yè)數(shù)： | 1/12頁(yè) |
| 文件大?。?/td> | 604K |
| 代理商： | LM98714 |
LM98714
Three Channel, 16-Bit, 45 MSPS Digital Copier Analog
Front End with Integrated CCD/CIS Sensor Timing
Generator and LVDS Output
General Description
The LM98714 is a fully integrated, high performance 16-Bit,
45 MSPS signal processing solution for digital color copiers,
scanners, and other image processing applications. High-
speed signal throughput is achieved with an innovative ar-
chitecture utilizing Correlated Double Sampling (CDS), typi-
cally employed with CCD arrays, or Sample and Hold (S/H)
inputs (for Contact Image Sensors and CMOS image sen-
sors). The signal paths utilize 8 bit Programmable Gain
Amplifiers (PGA), a +/-9-Bit offset correction DAC and inde-
pendently controlled Digital Black Level correction loops for
each input. The PGA and offset DAC are programmed inde-
pendently allowing unique values of gain and offset for each
of the three inputs. The signals are then routed to a 45MHz
high performance analog-to-digital converter (ADC). The
fully differential processing channel shows exceptional noise
immunity, having a very low noise floor of -74dB. The 16-bit
ADC has excellent dynamic performance making the
LM98714 transparent in the image reproduction chain.
Applications
n
Multi-Function Peripherals
n
Facsimile Equipment
n
Flatbed or Handheld Color Scanners
n
High-speed Document Scanner
Features
n
LVDS/CMOS Outputs
n
LVDS/CMOS Pixel Rate Input Clock or ADC Input Clock
n
CDS or S/H Processing for CCD or CIS sensors
n
Independent Gain/Offset Correction for Each Channel
n
Digital Black Level Correction Loop for Each Channel
n
Programmable Input Clamp Voltage
n
Flexible CCD/CIS Sensor Timing Generator
Key Specifications
n
Maximum Input Level
n
n
ADC Resolution
n
ADC Sampling Rate
n
INL
n
Channel Sampling Rate
n
PGA Gain Steps
n
PGA Gain Range
n
Analog DAC Resolution
n
Analog DAC Range
n
Digital DAC Resolution
n
Digital DAC Range
n
SNR
n
Power Dissipation
n
Operating Temp
n
Supply Voltage
1.2 or 2.4 Volt Modes
(both with + or - polarity option)
16-Bit
45 MSPS
+/- 23 LSB (typ)
15/22.5/30 MSPS
256 Steps
0.7 to 7.84x
+/-9 Bits
+/-300mV or +/-600mV
+/-6 Bits
-1024 LSB to + 1008 LSB
-74dB (
@
0dB PGA Gain)
505mW (LVDS) 610mW (CMOS)
0 to 70C
3.3V Nominal (3.0V to 3.6V range)
System Block Diagram
20105370
October 2006
L
C
2006 National Semiconductor Corporation
DS201053
www.national.com
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| LM98714BCMT | 制造商:Texas Instruments 功能描述:AFE Video 1ADC 16-Bit 3.3V 48-Pin TSSOP Rail |
| LM98714BCMT/NOPB | 功能描述:ADC / DAC多通道 16B,45MSPS Digital Copier AFE RoHS:否 制造商:Texas Instruments 轉(zhuǎn)換速率: 分辨率:8 bit 接口類型:SPI 電壓參考: 電源電壓-最大:3.6 V 電源電壓-最小:2 V 最大工作溫度:+ 85 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:VQFN-40 |
| LM98714BCMTX/NOPB | 功能描述:模數(shù)轉(zhuǎn)換器 - ADC RoHS:否 制造商:Texas Instruments 通道數(shù)量:2 結(jié)構(gòu):Sigma-Delta 轉(zhuǎn)換速率:125 SPs to 8 KSPs 分辨率:24 bit 輸入類型:Differential 信噪比:107 dB 接口類型:SPI 工作電源電壓:1.7 V to 3.6 V, 2.7 V to 5.25 V 最大工作溫度:+ 85 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:VQFN-32 |
| LM98714CCMT | 功能描述:模數(shù)轉(zhuǎn)換器 - ADC RoHS:否 制造商:Texas Instruments 通道數(shù)量:2 結(jié)構(gòu):Sigma-Delta 轉(zhuǎn)換速率:125 SPs to 8 KSPs 分辨率:24 bit 輸入類型:Differential 信噪比:107 dB 接口類型:SPI 工作電源電壓:1.7 V to 3.6 V, 2.7 V to 5.25 V 最大工作溫度:+ 85 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:VQFN-32 |
| LM98714CCMT/NOPB | 功能描述:模數(shù)轉(zhuǎn)換器 - ADC RoHS:否 制造商:Texas Instruments 通道數(shù)量:2 結(jié)構(gòu):Sigma-Delta 轉(zhuǎn)換速率:125 SPs to 8 KSPs 分辨率:24 bit 輸入類型:Differential 信噪比:107 dB 接口類型:SPI 工作電源電壓:1.7 V to 3.6 V, 2.7 V to 5.25 V 最大工作溫度:+ 85 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:VQFN-32 |
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