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LM98714BCMT/NOPB

更新时间： 2024-09-25 12:49:43

品牌	Logo	应用领域
德州仪器 - TI		/
页数	文件大小	规格书
114页	6945K
描述
LM98714 Three Channel, 16-Bit, 45 MSPS Analog Front End with LVDS/CMOS Output

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LM98714BCMT/NOPB 数据手册

LM98714

www.ti.com

SNAS254A –OCTOBER 2006–REVISED JANUARY 2014

LM98714 Three Channel, 16-Bit, 45 MSPS Analog Front End with LVDS/CMOS Output and

Integrated CCD/CIS Sensor Timing Generator

Check for Samples: LM98714

FEATURES

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 architecture utilizing

Correlated Double Sampling (CDS), typically

employed with CCD arrays, or Sample and Hold

(S/H) inputs (for Contact Image Sensors and CMOS

•

LVDS/CMOS Outputs

•

LVDS/CMOS Pixel Rate Input Clock or ADC

Input Clock

CDS or S/H Processing for CCD or CIS

Sensors

Independent Gain/Offset Correction for Each

Channel

image sensors). The signal paths utilize

8 bit

Digital Black Level Correction Loop for Each

Channel

Programmable Gain Amplifiers (PGA), a ±9-Bit offset

correction DAC and independently controlled Digital

Black Level correction loops for each input. The PGA

and offset DAC are programmed independently

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.

•

Programmable Input Clamp Voltage

Flexible CCD/CIS Sensor Timing Generator

APPLICATIONS

•

Multi-Function Peripherals

Facsimile Equipment

Flatbed or Handheld Color Scanners

High-Speed Document Scanner

CCD/CIS Sensor

KEY SPECIFICATIONS

Analog Front End

SPI

•

Maximum Input Level: 1.2 or 2.4 Volt Modes

(Both with + or - Polarity Option)

–

Image Processor/ASIC

LM98714

Data Output

•

ADC Resolution: 16-Bit

Motor

Controllers

ADC Sampling Rate: 45 MSPS

INL: ±23 LSB (Typ)

CCD Timing

Generator

Sensor Drivers

Figure 1. System Block Diagram

Channel Sampling Rate: 15/22.5/30 MSPS

PGA Gain Steps: 256 Steps

PGA Gain Range: 0.7 to 7.84x

Analog DAC Resolution: ±9 Bits

Analog DAC Range: ±300mV or ±600mV

Digital DAC Resolution: ±6 Bits

Digital DAC Range: -1024 LSB to + 1008 LSB

SNR: -74dB (@ 0 dB PGA Gain)

Power Dissipation: 505 mW (LVDS) 610 mW

(CMOS)

•

Operating Temp: 0 to 70°C

Supply Voltage: 3.3 V Nominal (3.0 V to 3.6 V

Range)

Please be aware that an important notice concerning availability, standard warranty, and use in critical applications of

Texas Instruments semiconductor products and disclaimers thereto appears at the end of this data sheet.

All trademarks are the property of their respective owners.

PRODUCTION DATA information is current as of publication date.

Products conform to specifications per the terms of the Texas

Instruments standard warranty. Production processing does not

necessarily include testing of all parameters.

12 3 4 5 6 7...114

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与LM98714BCMT/NOPB相关器件

型号	品牌	获取价格	描述	数据表
LM98714BCMTX	TI	获取价格	LM98714 Three Channel, 16-Bit, 45 MSPS Digital Copier Analog Front End with Integrated CCD
LM98714BCMTX/NOPB	TI	获取价格	LM98714 Three Channel, 16-Bit, 45 MSPS Analog Front End with LVDS/CMOS Output
LM98714CCMT	TI	获取价格	LM98714 Three Channel, 16-Bit, 45 MSPS Digital Copier Analog Front End with Integrated CCD
LM98714CCMT/NOPB	TI	获取价格	LM98714 Three Channel, 16-Bit, 45 MSPS Analog Front End with LVDS/CMOS Output
LM98714CCMTX	TI	获取价格	LM98714 Three Channel, 16-Bit, 45 MSPS Analog Front End with LVDS/CMOS Output
LM98714CCMTX/NOPB	TI	获取价格	LM98714 Three Channel, 16-Bit, 45 MSPS Analog Front End with LVDS/CMOS Output
LM98722	NSC	获取价格	3 Channel, 16-Bit, 45 MSPS Analog Front End with LVDS/CMOS Output, Integrated CCD/CIS Sens
LM98722	TI	获取价格	具有 LVDS/CMOS 输出和集成 CCD/CIS 传感器定时发送器的 3 通道 16
LM98722CCMT	NSC	获取价格	IC SPECIALTY ANALOG CIRCUIT, PDSO56, TSSOP-56, Analog IC:Other
LM98722CCMT/NOPB	NSC	获取价格	IC SPECIALTY ANALOG CIRCUIT, PDSO56, ROHS COMPLIANT, TSSOP-56, Analog IC:Other

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