Datasheet > LM98519

LM98519

更新时间： 2024-09-25 03:51:39

品牌	Logo	应用领域
美国国家半导体 - NSC		/
页数	文件大小	规格书
6页	150K
描述
10-bit 65 MSPS 6 Channel Imaging Signal Processor

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中文翻译

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LM98519 数据手册

February 21, 2008

LM98519

10-bit 65 MSPS 6 Channel Imaging Signal Processor

General Description

Features

The LM98519 is a fully integrated, high performance 10-Bit,

65 MSPS signal processing solution for 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 65MHz high performance ADCs. The fully differential

processing channels achieve exceptional noise immunity,

having a very low noise floor of -68dB. The 10-bit analog-to-

digital converters have excellent dynamic performance mak-

ing the LM98519 transparent in the image reproduction chain.

3.3V Single Supply Operation

■

CDS or S/H Processing with Negative Input Signal Polarity

32.5 MHz Channel Rate

Enhanced ESD Protection on Timing and Control Pins

Low Power CMOS Design

4-Wire Serial interface

2 Channel Symmetrical Architecture

Independent Gain & 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

1.19 Vp-p (CDS gain = 1.0)

0.58 Vp-p (CDS gain = 2.1)

5 to 32.5 MSPS - 6ch mode

10 to 32.5 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

1x to 20x (0 to 26 dB)

8 bits - Analog

10 bits

10 to 65 MSPS

68 dB (Gain = 1x)

±111 mV or ±60 mV- FDAC

±277 mV - CDAC

±10 bits - FDAC

Offset DAC Range

Offset DAC Resolution

±4 bits - CDAC

3.0V to 3.6V

1.04 W (typical)

Supply voltage

Power Dissipation

300322

www.national.com

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中文翻译

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与LM98519相关器件

型号	品牌	获取价格	描述	数据表
LM98519VHB	NSC	获取价格	10-bit 65 MSPS 6 Channel Imaging Signal Processor
LM98519VHB/NOPB	TI	获取价格	10 位 65 MSPS 6 通道成像信号处理器 \| PFC \| 80 \| 0 to 70
LM98555	TI	获取价格	LM98555 CCD Driver
LM98555	NSC	获取价格	CCD Driver
LM98555CCMH	TI	获取价格	LM98555 CCD Driver
LM98555CCMH	NSC	获取价格	CCD Driver
LM98555CCMH/NOPB	TI	获取价格	CCD 驱动器 \| DCA \| 64 \| 0 to 70
LM98555CCMHX	TI	获取价格	LM98555 CCD Driver
LM98555CCMHX/NOPB	TI	获取价格	CCD 驱动器 \| DCA \| 64 \| 0 to 70
LM98620	INFINEON	获取价格	10-bit 70 MSPS 6 Channel Imaging Signal Processor with 10-bit 70 MSPS 6 Channel Imaging Si

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