LM98722CCMTX datasheet(1/150 Pages) TI1

tên linh kiện	LM98722CCMTX

Giải thích chi tiết về linh kiện	Channel, 16-Bit, 45 MSPS Analog Front End

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LM98722

CCD Timing

Generator

Analog Front End

CCD/CIS Sensor

Sensor Drivers

Image Processor/

ASIC

Data Output

SPI

Motor

Controllers

CLK

SSCG

Product

Folder

Sample &

Buy

Technical

Documents

Tools &

Software

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Community

LM98722

SNAS487B – SEPTEMBER 2009 – REVISED MARCH 2015

LM98722 3 Channel, 16-Bit, 45 MSPS Analog Front End with LVDS/CMOS Output,

Integrated CCD/CIS Sensor Timing Generator, and Spread Spectrum Clock Generation

1 Features

3 Description

The LM98722 is a fully integrated, high performance

1

•

LVDS/CMOS Outputs

16-Bit, 45 MSPS signal processing solution for digital

•

LVDS/CMOS/Crystal Clock Source with PLL

color copiers, scanners, and other image processing

Multiplication

applications.

High-speed

signal

throughput

is

•

Integrated Flexible Spread Spectrum Clock

achieved with an innovative architecture utilizing

Correlated

Double

Sampling

(CDS),

typically

Generation

employed with CCD arrays, or Sample and Hold

•

CDS or S/H Processing for CCD or CIS sensors

(S/H) inputs (for higher speed CCD or CMOS image

•

Independent Gain/Offset Correction for Each

sensors). The signal paths utilize 8 bit Programmable

Channel

Gain Amplifiers (PGA), a +/-9-Bit offset correction

•

Automatic per-Channel Gain and Offset

DAC and independently controlled Digital Black Level

correction loops for each input. The PGA and offset

Calibration

DAC are programmed independently allowing unique

•

Programmable Input Clamp Voltage

values of gain and offset for each of the three analog

•

Flexible CCD/CIS Sensor Timing Generator

inputs. The signals are then routed to a 45-MHz high

performance analog-to-digital converter (ADC). The

2 Applications

fully

differential

processing

channel

shows

exceptional noise immunity, having a very low noise

•

Multi-Function Peripherals

floor of -74dB. The 16-bit ADC has excellent dynamic

•

High-speed Currency/Check Scanners

performance making the LM98722 transparent in the

•

Flatbed or Handheld Color Scanners

image reproduction chain.

•

High-speed Document Scanners

A very flexible integrated Spread Spectrum Clock

•

Key Specifications:

Generation (SSCG) modulator is included to assist

with EM compliance and reduce system costs.

–

Maximum Input Level:

–

1.2-V or 2.4-V Modes (Both with + or -

Device Information

Polarity Option)

ORDER NUMBER

PACKAGE

BODY SIZE

–

ADC Resolution: 16-Bit

LM98722

TSSOP (56)

14.0 mm x 6.10 mm

–

ADC Sampling Rate: 45 MSPS

–

INL: +18/-25 LSB (typ)

Simplified Schematic

–

Channel Sampling Rate: 22.5/22.5/15 MSPS

(1ch/2ch/3ch)

–

PGA Gain Steps: 256 Steps

–

PGA Gain Range: 0.64 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 (at 0dB PGA Gain)

–

Power Dissipation: 630 mW (LVDS)

–

Operating Temp: 0 to 70°C

–

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.

Số phần tương tự - LM98722CCMTX

nhà sản xuất	tên linh kiện	bảng dữ liệu	Giải thích chi tiết về linh kiện
Texas Instruments	LM98722CCMTX	708Kb / 20P	[Old version datasheet] 3 Channel, 16-Bit, 45 MSPS Analog Front End with LVDS/CMOS Output Integrated CCD/CIS Sensor Timing Generator and Spread Spectrum Clock Generation

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Mô tả tương tự - LM98722CCMTX

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Texas Instruments	LM98725	5Mb / 145P	[Old version datasheet] 3 Channel, 16-Bit, 81 MSPS Analog Front End
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	LM98640	1Mb / 47P	[Old version datasheet] Dual Channel, 14-Bit, 40 MSPS Analog Front End with LVDS Output
	LM98640QML	1Mb / 52P	[Old version datasheet] Dual Channel, 14-Bit, 40 MSPS Analog Front End with LVDS Output
	LM98640QML-SP	573Kb / 54P	[Old version datasheet] Dual Channel, 14-Bit, 40 MSPS Analog Front End with LVDS Output
	LM98640	804Kb / 46P	[Old version datasheet] Dual Channel, 14-Bit, 40 MSPS Analog Front End with LVDS Output
National Semiconductor ...	LM98714	598Kb / 12P	Three Channel, 16-Bit, 45 MSPS Digital Copier Analog Front End with Integrated CCD/CIS Sensor Timing Generator and LVDS Output

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