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LM98725CCMT/NOPB

更新时间： 2024-09-26 11:14:43
品牌 Logo 应用领域
德州仪器 - TI 光电二极管传感器
页数 文件大小 规格书
146页 5508K
描述
具有 LVDS/CMOS 输出和集成 CCD/CIS 传感器定时发送器的 3 通道 16 位 81MSPS AFE | DGG | 56 | 0 to 70

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LM98725CCMT/NOPB 技术参数

是否无铅：不含铅是否Rohs认证：符合
生命周期：Active包装说明：GREEN, PLASTIC, TSSOP-56
Reach Compliance Code：compliantECCN代码：EAR99
HTS代码：8542.39.00.01Factory Lead Time：1 week
风险等级：1.39Is Samacsys：N
模拟集成电路 - 其他类型：ANALOG CIRCUITJESD-30 代码：R-PDSO-G56
JESD-609代码：e3长度：14 mm
湿度敏感等级：2信道数量：3
功能数量：1端子数量：56
最高工作温度：70 °C最低工作温度：
封装主体材料：PLASTIC/EPOXY封装代码：TSSOP
封装形状：RECTANGULAR封装形式：SMALL OUTLINE, THIN PROFILE, SHRINK PITCH
峰值回流温度（摄氏度）：260座面最大高度：1.15 mm
最大供电电压 (Vsup)：3.6 V最小供电电压 (Vsup)：3 V
标称供电电压 (Vsup)：3.3 V表面贴装：YES
温度等级：COMMERCIAL端子面层：Matte Tin (Sn)
端子形式：GULL WING端子节距：0.5 mm
端子位置：DUAL处于峰值回流温度下的最长时间：NOT SPECIFIED
宽度：6.1 mmBase Number Matches：1

LM98725CCMT/NOPB 数据手册

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Sample &  
Buy  
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Community  
Product  
Folder  
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Software  
Technical  
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LM98725  
SNAS474H –APRIL 2009–REVISED MARCH 2015  
LM98725 3 Channel, 16-Bit, 81 MSPS Analog Front End with LVDS/CMOS Output,  
Integrated CCD/CIS Sensor Timing Generator and Spread Spectrum Clock Generation  
1 Features  
3 Description  
The LM98725 is a fully integrated, high performance  
16-Bit, 81 MSPS signal processing solution for digital  
color copiers, scanners, and other image processing  
applications. The LM98725 achieves high-speed  
signal throughput with an innovative architecture  
utilizing Correlated Double Sampling (CDS), typically  
employed with CCD arrays, or Sample and Hold  
(S/H) inputs (for higher speed CCD or CMOS image  
sensors). The signal paths utilize 8 bit Programmable  
Gain Amplifiers (PGA), a ±9-Bit offset correction  
DAC, and independently controlled Digital Black  
Level correction loops for each input. The  
independently programmed PGA and offset DAC  
allow unique values of gain and offset for each of the  
three analog inputs. The signals are then routed to a  
81 MHz high performance analog-to-digital converter  
(ADC). The fully differential processing channel  
shows exceptional noise immunity with a very low  
noise floor of –74 dB. The 16-bit ADC has excellent  
dynamic performance making the LM98725  
transparent in the image reproduction chain.  
1
•
•
LVDS/CMOS Outputs  
LVDS/CMOS/Crystal Clock Source with PLL  
Multiplication  
•
Integrated Flexible Spread Spectrum Clock  
Generation  
•
•
CDS or S/H Processing for CCD or CIS Sensors  
Independent Gain/Offset Correction for Each  
Channel  
•
Automatic per-Channel Gain and Offset  
Calibration  
•
•
Programmable Input Clamp Voltage  
Flexible CCD/CIS Sensor Timing Generator  
2 Applications  
•
•
•
•
•
Multi-Function Peripherals  
High-speed Currency/Check Scanners  
Flatbed or Handheld Color Scanners  
High-speed Document Scanners  
Key Specifications:  
A very flexible integrated Spread Spectrum Clock  
Generation (SSCG) modulator is included to assist  
with EM compliance and reduce system costs.  
–
Maximum Input Level  
–
–
1.2 or 2.4 Volt Modes  
Device Information(1)  
(Both with + or - Polarity Option)  
PART NUMBER  
PACKAGE  
BODY SIZE (NOM)  
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–
–
–
–
–
–
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ADC Resolution: 16-Bit  
LM98725  
TSSOP (56)  
14.0 mm × 6.10 mm  
ADC Sampling Rate: 81 MSPS  
INL: +17/- 28 LSB (typ)  
(1) For all available packages, see the orderable addendum at  
the end of the datasheet.  
Channel Sampling Rate: 30/30/27 MSPS  
PGA Gain Steps: 256 Steps  
System Block Diagram  
CCD/CIS Sensor  
PGA Gain Range: 0.62 to 8.3x  
Analog DAC Resolution: ±9 Bits  
Analog DAC Range: ±307 mV or ±614 mV  
Digital DAC Resolution: ±6 Bits  
Digital DAC Range: -2048 LSB to + 2016 LSB  
SNR: –74dB (@0 dB PGA Gain)  
Power Dissipation: 755 mW (LVDS)  
Operating Temp: 0 to 70°C  
Analog Front End  
SPI  
Image Processor/  
LM98725  
ASIC  
Data Output  
CCD Timing  
Sensor Drivers  
Generator  
Motor  
Controllers  
CLK  
SSCG  
Supply Voltage: 3.3 V Nominal (3.0-V to 3.6-V  
Range)  
1
An IMPORTANT NOTICE at the end of this data sheet addresses availability, warranty, changes, use in safety-critical applications,  
intellectual property matters and other important disclaimers. PRODUCTION DATA.  
 
 
 
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