Datasheet > LM98620

LM98620

更新时间： 2024-11-13 11:50:51

品牌	Logo	应用领域
英飞凌 - INFINEON		/
页数	文件大小	规格书
6页	154K
描述
10-bit 70 MSPS 6 Channel Imaging Signal Processor with 10-bit 70 MSPS 6 Channel Imaging Signal Processor with

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LM98620 数据手册

February 21, 2008

LM98620

10-bit 70 MSPS 6 Channel Imaging Signal Processor with

LVDS Output

General Description

The LM98620 is a fully integrated, 10-Bit, 70 MSPS signal

4-Wire Serial interface

Low Power CMOS Design

■

12 pin to 16 pin (selectable) LVDS serialized data output

■

processing solution for high performance digital color copiers,

scanners, and other image processing applications. High-

speed signal throughput is achieved with an innovative six

channel architecture utilizing Correlated Double Sampling

(CDS), or Sample and Hold (SH) type sampling. 1x or 2x gain

settings are available in the CDS/SH input stage. Each chan-

nel has a dedicated 1x to 10x (8 bit) PGA that allows accurate

gain adjustment of each channel. The Digital White Level auto

calibration loop can automatically set the PGA value to

achieve a selected white target level. Each channel also has

a ±4 bit coarse and ±10-bit fine analog offset correction DAC

that allows offset correction before the sample-and-hold am-

plifier. These correction values can be controlled by an auto-

mated Digital Black Level correction loop. The PGA and offset

DACs for each channel are programmed independently al-

lowing unique values of gain and offset for each of the six

channels. A 2-to-1 multiplexing scheme routes the signals to

three 70MHz high performance ADCs. The fully differential

processing channels achieve exceptional noise immunity,

having a very low noise floor of -68.5dB. The 10-bit analog-

to-digital converters have excellent dynamic performance

making the LM98620 transparent in the image reproduction

chain.

2 Channel Symmetrical Architecture

Independent Gain and Offset Correction for each Channel

Digital Black Level Calibration for each Channel

Digital White Level Calibration for each Channel

Programmable Input Clamp

Key Specifications

Maximum Input Level

1.2 Vp-p (CDS gain = 1.0)

0.58 Vp-p (CDS gain = 2.0)

5 to 35 MSPS - 6ch mode

10 to 35 MSPS - 3ch mode

1x to 10x (0 to 20 dB)

1x or 2.1x

■

Input Sample Rate

■

PGA Gain Range

CDS/SH Gain Settings

Total Channel Gain

PGA Gain Resolution

ADC Resolution

ADC Sampling Rate

SNR

Offset DAC Range

■

1x to 21x (0 to 26 dB)

8 bits - Analog

■

10 bits

10 to 70 MSPS

68.5 dB (Gain = 1x)

±111 mV or ±59.5 mV- FDAC

±281 mV - CDAC

±10 bits - FDAC

■

Offset DAC Resolution

■

Features

±4 bits - CDAC

3.0V to 3.6V

1.02 W (typical)

■

Supply voltage

Power Dissipation

3.3V Single Supply Operation

■

CDS or S/H Processing

35 MHz Channel Rate

Enhanced ESD Protection on Timing, Control and LVDS

Pins

System Block Diagram

30032304

300323

www.national.com

12 3 4 5 6

中文翻译

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与LM98620相关器件

型号	品牌	获取价格	描述	数据表
LM98620VHB	INFINEON	获取价格	10-bit 70 MSPS 6 Channel Imaging Signal Processor with 10-bit 70 MSPS 6 Channel Imaging Si
LM98620VHB/NOPB	TI	获取价格	具有 LVDS 输出的 10 位 70 MSPS 6 通道图像信号处理器 \| PFC \|
LM98640	TI	获取价格	Dual Channel, 14-Bit, 40 MSPS Analog Front End with LVDS Output
LM98640CILQ	TI	获取价格	Dual Channel, 14-Bit, 40 MSPS Analog Front End with LVDS Output
LM98640CVAL	TI	获取价格	Dual Channel, 14-Bit, 40 MSPS Analog Front End with LVDS Output
LM98640QML	TI	获取价格	Dual Channel, 14-Bit, 40 MSPS Analog Front End with LVDS Output
LM98640QML-SP	TI	获取价格	具有 LVDS 输出的双通道、14 位、40MSPS 模拟前端
LM98640W-MLS	TI	获取价格	Dual Channel, 14-Bit, 40 MSPS Analog Front End with LVDS Output
LM98640W-MPR	TI	获取价格	Dual Channel, 14-Bit, 40 MSPS Analog Front End with LVDS Output
LM98714	NSC	获取价格	Three Channel, 16-Bit, 45 MSPS Digital Copier Analog Front End with Integrated CCD/CIS Sen

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