P2042A datasheet, PDF - EEWORLD Datasheet

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P2042A: DescriptionLCD Panel EMI Reduction IC; File Size347KB，8 Pages; ManufacturerPulseCore Semiconductor Corporation

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P2042A Overview

LCD Panel EMI Reduction IC

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November 2006

rev 1.4

LCD Panel EMI Reduction IC

Features

•

P2042A

interference (EMI) at the clock source, allowing system

wide reduction of EMI of

down stream clock and data

dependent signals. The P2042A allows significant system

cost savings by reducing the number of circuit board

layers ferrite beads,

regulations.

The P2042A uses the most efficient and optimized

modulation

profile

approved

the

FCC

and

implemented in a proprietary all digital method.

The P2042A modulates the output of a single PLL in

order to “spread” the bandwidth of a synthesized clock,

and more importantly, decreases the peak amplitudes of

its harmonics. This results in significantly lower system

EMI compared to the typical narrow band signal produced

by oscillators and most frequency generators. Lowering

EMI by increasing a signal’s bandwidth is called ‘spread

spectrum clock generation’.

shielding and other passive

components that are traditionally required to pass EMI

FCC approved method of EMI attenuation.

Provides up to 15dB of EMI suppression.

Generates a low EMI spread spectrum clock of

the input frequency.

Input frequency range: 30MHz to 110MHz.

Optimized for 32.5MHz, 54MHz, 65MHz and

108MHz pixel clock frequencies.

Internal loop filter minimizes external components

and board space.

Eight selectable high spread ranges up to ±

1.9%.

SSON# control pin for spread spectrum enable

and disable options.

Low cycle-to-cycle jitter.

3.3V ± 0.3V operating range.

Low power CMOS design.

Supports most mobile graphic accelerator and

LCD timing controller specifications.

Available in 8-pin SOIC and TSSOP Packages.

Product Description

The P2042A is a versatile spread spectrum frequency

modulator designed specifically for digital flat panel

applications.

The

P2042A

reduces

electromagnetic

Applications

The P2042A is targeted towards digital flat panel

applications for notebook PCs, palm-size PCs, office

automation equipments and LCD monitors.

Block Diagram

VDD

SR0 CP1 CP0 SSON#

Modulation

CLKIN

Frequency

Divider

Feedback

Divider

PLL

Phase

Detector

Loop

Filter

VCO

Output

Divider

ModOUT

VSS

PulseCore Semiconductor Corporation

1715 S. Bascom Ave Suite 200, Campbell, CA 95008

•

Tel: 408-879-9077

•

Fax: 408-879-9018

www.pulsecoresemi.com

Notice: The information in this document is subject to change without notice.

P2042A Related Products

	P2042A	I2042AG-08TR	I2042AG-08SR	I2042AF-08TR	P2042AF-08SR	P2042AF-08TR	P2042AF-08ST	P2042AG-08SR	P2042AF-08TT
Description	LCD Panel EMI Reduction IC	LCD Panel EMI Reduction IC	LCD Panel EMI Reduction IC	LCD Panel EMI Reduction IC	LCD Panel EMI Reduction IC	LCD Panel EMI Reduction IC	LCD Panel EMI Reduction IC	LCD Panel EMI Reduction IC	LCD Panel EMI Reduction IC
Is it Rohs certified?	-	conform to	conform to	conform to	conform to	conform to	conform to	conform to	conform to
Maker	-	PulseCore Semiconductor Corporation	PulseCore Semiconductor Corporation	PulseCore Semiconductor Corporation	PulseCore Semiconductor Corporation	PulseCore Semiconductor Corporation	PulseCore Semiconductor Corporation	PulseCore Semiconductor Corporation	PulseCore Semiconductor Corporation
package instruction	-	GREEN, TSSOP-8	GREEN, SOIC-8	ROHS COMPLIANT, TSSOP-8	ROHS COMPLIANT, SOIC-8	ROHS COMPLIANT, TSSOP-8	ROHS COMPLIANT, SOIC-8	GREEN, SOIC-8	ROHS COMPLIANT, TSSOP-8
Reach Compliance Code	-	unknow	unknow	unknow	unknow	unknow	unknow	unknow	unknow
series	-	2042	2042	2042	2042	2042	2042	2042	2042
Input adjustment	-	STANDARD	STANDARD	STANDARD	STANDARD	STANDARD	STANDARD	STANDARD	STANDARD
JESD-30 code	-	R-PDSO-G8	R-PDSO-G8	R-PDSO-G8	R-PDSO-G8	R-PDSO-G8	R-PDSO-G8	R-PDSO-G8	R-PDSO-G8
length	-	4.4 mm	4.9 mm	4.4 mm	4.9 mm	4.4 mm	4.9 mm	4.9 mm	4.4 mm
Logic integrated circuit type	-	PLL BASED CLOCK DRIVER	PLL BASED CLOCK DRIVER	PLL BASED CLOCK DRIVER	PLL BASED CLOCK DRIVER	PLL BASED CLOCK DRIVER	PLL BASED CLOCK DRIVER	PLL BASED CLOCK DRIVER	PLL BASED CLOCK DRIVER
Number of functions	-	1	1	1	1	1	1	1	1
Number of terminals	-	8	8	8	8	8	8	8	8
Actual output times	-	1	1	1	1	1	1	1	1
Maximum operating temperature	-	85 °C	85 °C	85 °C	70 °C	70 °C	70 °C	70 °C	70 °C
Package body material	-	PLASTIC/EPOXY	PLASTIC/EPOXY	PLASTIC/EPOXY	PLASTIC/EPOXY	PLASTIC/EPOXY	PLASTIC/EPOXY	PLASTIC/EPOXY	PLASTIC/EPOXY
encapsulated code	-	TSSOP	SOP	TSSOP	SOP	TSSOP	SOP	SOP	TSSOP
Package shape	-	RECTANGULAR	RECTANGULAR	RECTANGULAR	RECTANGULAR	RECTANGULAR	RECTANGULAR	RECTANGULAR	RECTANGULAR
Package form	-	SMALL OUTLINE, THIN PROFILE, SHRINK PITCH	SMALL OUTLINE	SMALL OUTLINE, THIN PROFILE, SHRINK PITCH	SMALL OUTLINE	SMALL OUTLINE, THIN PROFILE, SHRINK PITCH	SMALL OUTLINE	SMALL OUTLINE	SMALL OUTLINE, THIN PROFILE, SHRINK PITCH
Peak Reflow Temperature (Celsius)	-	NOT SPECIFIED	NOT SPECIFIED	NOT SPECIFIED	NOT SPECIFIED	NOT SPECIFIED	NOT SPECIFIED	NOT SPECIFIED	NOT SPECIFIED
Certification status	-	Not Qualified	Not Qualified	Not Qualified	Not Qualified	Not Qualified	Not Qualified	Not Qualified	Not Qualified
Maximum seat height	-	1.1 mm	1.75 mm	1.1 mm	1.75 mm	1.1 mm	1.75 mm	1.75 mm	1.1 mm
Maximum supply voltage (Vsup)	-	3.6 V	3.6 V	3.6 V	3.6 V	3.6 V	3.6 V	3.6 V	3.6 V
Minimum supply voltage (Vsup)	-	3 V	3 V	3 V	3 V	3 V	3 V	3 V	3 V
Nominal supply voltage (Vsup)	-	3.3 V	3.3 V	3.3 V	3.3 V	3.3 V	3.3 V	3.3 V	3.3 V
surface mount	-	YES	YES	YES	YES	YES	YES	YES	YES
technology	-	CMOS	CMOS	CMOS	CMOS	CMOS	CMOS	CMOS	CMOS
Temperature level	-	INDUSTRIAL	INDUSTRIAL	INDUSTRIAL	COMMERCIAL	COMMERCIAL	COMMERCIAL	COMMERCIAL	COMMERCIAL
Terminal form	-	GULL WING	GULL WING	GULL WING	GULL WING	GULL WING	GULL WING	GULL WING	GULL WING
Terminal pitch	-	0.65 mm	1.27 mm	0.65 mm	1.27 mm	0.65 mm	1.27 mm	1.27 mm	0.65 mm
Terminal location	-	DUAL	DUAL	DUAL	DUAL	DUAL	DUAL	DUAL	DUAL
Maximum time at peak reflow temperature	-	NOT SPECIFIED	NOT SPECIFIED	NOT SPECIFIED	NOT SPECIFIED	NOT SPECIFIED	NOT SPECIFIED	NOT SPECIFIED	NOT SPECIFIED
width	-	3 mm	3.9 mm	3 mm	3.91 mm	3 mm	3.91 mm	3.91 mm	3 mm
minfmax	-	110 MHz	110 MHz	110 MHz	110 MHz	110 MHz	110 MHz	110 MHz	110 MHz

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