LM98519 - 10-bit 65 MSPS 6 Channel Imaging Signal Processor

Datasheet	Packaging	Samples & Pricing	Models	Knowledge Base

Features

•	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 Specification

Maximum Input Level	1.19 Vp-p (CDS gain = 1.0)
	0.58 Vp-p (CDS gain = 2.1)
Input Sample Rate	5 to 32.5 MSPS - 6ch mode
	10 to 32.5 MSPS - 3ch mode
PGA Gain Range	1x to 10x (0 to 20 dB)
CDS/SH Gain Settings	1x or 2.1x

Total Channel Gain	1x to 20x (0 to 26 dB)
PGA Gain Resolution	8 bits - Analog
ADC Resolution	10 bits
ADC Sampling Rate	10 to 65 MSPS
SNR	68 dB (Gain = 1x)
Offset DAC Range	±111 mV or ±60 mV- FDAC
	±277 mV - CDAC
Offset DAC Resolution	±10 bits - FDAC
	±4 bits - CDAC
Supply voltage	3.0V to 3.6V
Power Dissipation	1.04 W (typical)

General Description

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. More...

Parameters Values

Input Channels 6

ADC Sampling Rate 65 MSPS

Channel Sampling Rate (MSPS) 5 to 32.5

ADC Resolution 10 bits

Input Signal Polarity Negative

Input Sampler Type Both SH, CDS

Integrated Timing Generator No

Output Type CMOS

Input Voltage Swing (Max) 1.19 Volt

INL (+/-) 0.9 LSB

Noise Floor -67.5 dB

PGA Gain Resolution 9 bits

PGA Gain (Min) 0 dB

PGA Gain (Max) 26 dB

DAC Offset Resolution (+/-) 14 bits

DAC Offset Range (+/-) 337 mV

Supply Voltage 3.3 Volt

Power Dissipation 1.04 Watt

Block Diagram

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Datasheet

RoHS Compliance Information	Size in Kbytes	Date
LM98519 10-bit 65 MSPS 6 Channel Imaging Signal Processor	146 Kbytes	21-Feb-08	Download

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Package Availability, Models, Samples & Pricing

Part Number

Package

Factory Lead Time

Models

Samples &
Electronic
Orders

Budgetary Pricing

Std
Pack
Size

Package
Marking
Format

Type

Pins

Spec.

MSL
Rating

Peak
Reflow

RoHS
Report

CAD
Symbols

Weeks

Qty

$US each

LM98519VHB

TQFP

NOPB
STD

3
3

260
260

RoHS

N/A

Full production

lm98519.ibs

1K+

$19.50

tray
of
119

NSUZXYTTE#
LM98519VHB

6 weeks

N/A

General Description

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 channel 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 amplifier. These correction values can be controlled by an automated Digital Black Level correction loop. The PGA and offset DACs for each channel are programmed independently allowing 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 making the LM98519 transparent in the image reproduction chain.

[Information as of 8-Nov-2009]