 |
|
| If you can't view the Datasheet, Please click here to try to view without PDF Reader . |
|
|
|
| If you can't view the Datasheet, Please click here to try to view without PDF Reader . |
|
|
| Datasheet File OCR Text: |
| March 2007 rev 1.9 Notebook LCD Panel EMI Reduction IC Features * * * * * * * * * * * * * * * FCC approved method of EMI attenuation. Provides up to 15dB EMI reduction. Generates a low EMI Spread Spectrum clock and a non-spread reference clock of the input frequency. Optimized for Frequency range from 20 to 40MHz. Internal loop filter minimizes external components and board space. Selectable spread options: Down and Center. Low Inherent Cycle-to-Cycle jitter. Eight spread % selections: 0.625% to -3.5%. ModRate is compliant with ATI M7x VGA spec. 3.3V 0.3V Operating Voltage range. Low power CMOS design. Supports notebook VGA and other LCD timing controller applications. Power Down function for mobile application. Available in Commercial temperature range. Available in 8-pin SOIC and TSSOP Packages. P1819 ferrite beads, shielding and other passive components that are traditionally required to pass EMI regulations. The P1819 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'. The P1819 is available in different spread deviation, refer to "Spread Deviation Selection" Table. The P1819 uses the most efficient and optimized modulation profile approved by the FCC and is implemented in a proprietary all digital method. Applications The P1819 is targeted towards EMI management for memory and LVDS interfaces in mobile graphic chipsets and high-speed digital applications such as PC peripheral devices, consumer electronics, and embedded controller systems. Product Description The P1819 is a Versatile Spread Spectrum Frequency Modulator designed specifically for input clock frequencies from 20 to 40MHz. (Refer Input Frequency and Modulation Rate Table). The P1819 reduces electromagnetic interference (EMI) at the clock source, allowing system wide reduction of EMI of down stream clock and data dependent signals. The P1819 allows significant system cost savings by reducing the number of circuit board layers Block Diagram D_C/NC PD# SRS VDD Modulation XIN/CLKIN Crystal Oscillator XOUT Frequency Divider Feedback Divider PLL Phase Detector Loop Filter VCO Output Divider REF 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. March 2007 rev 1.9 Pin Configuration XIN/ CLKIN VSS SRS ModOUT 1 2 3 4 8 7 6 5 XOUT VDD PD# REF XIN / CLKIN VSS D_C / NC ModOUT 1 2 3 4 8 7 6 5 XOUT VDD PD# REF P1819 P1819 A/B/C/D P1819 E/F/G/H/Q Pin Description Pin# 1819A/B/C/D 1 2 3 1819E/F/G/H/Q 1 2 Pin Name Type Description Crystal Connection or external frequency input.This pin has dual functions. It can be connected to either an external crystal or an external reference clock Ground Connection. Connect to system ground. Spread range select. Digital logic input used to select frequency deviation (Refer Spread Deviation Selection Table). This pin has an internal pull-up resistor. Digital logic input used to select Down (LOW) or Center (HIGH) spread options (Refer Spread Deviation Selection Table). This pin has an internal pull-up resistor. Spread spectrum clock output. (Refer Input Frequency and Modulation Rate Table and Spread Deviation Selection Table) Non-modulated Reference clock output of the input frequency. Power down control pin. Pull XIN/CLKIN and PD# LOW to enable Power-Down mode. This pin has an internal pull-up resistor. Power Supply for the entire chip. Crystal Connection. Input connection for an external crystal. If using an external reference, this pin must be left unconnected. XIN / CLKIN VSS SRS I P I 3 3 D_C / NC I 4 5 6 7 8 Note: Pin 3 is NC in P1819Q 4 5 6 7 8 ModOUT REF PD# VDD XOUT O O I P O Input Frequency and Modulation Rate Part Number P1819 Input Frequency Range 20MHz to 40MHz Output Frequency range 20MHz to 40MHz Modulation rate Input Frequency / 896 Note Book LCD Panel EMI Reduction IC Notice: The information in this document is subject to change without notice. 2 of 8 March 2007 rev 1.9 Spread Deviation Selection Part Number P1819A P1819 SRS 0 1 0 1 0 1 0 1 NA D_C NA Spread Deviation -2.50% (DOWN) -3.50% (DOWN) -1.25% (DOWN) -1.75% (DOWN) 1.25% (CENTER) 1.75% (CENTER) 0.625% (CENTER) 0.875% (CENTER) -1.25% (DOWN) 0.625% (CENTER) -2.5% (DOWN) 1.25% (CENTER) -1.75% (DOWN) 0.875% (CENTER) -3.5% (DOWN) 1.75% (CENTER) -2.5% (DOWN) P1819B NA P1819C NA P1819D NA 0 1 0 1 0 1 0 1 NA P1819E P1819F NA P1819G NA P1819H P1819Q NA NA Absolute Maximum Ratings Symbol VDD, VIN TSTG TA Ts TJ TDV Storage temperature Operating temperature Max. Soldering Temperature (10 sec) Junction Temperature Static Discharge Voltage (As per JEDEC STD22- A114-B) Parameter Voltage on any pin with respect to Ground Rating -0.5 to +7.0 -65 to +125 0 to 70 260 150 2 Unit V C C C C KV Note: These are stress ratings only and are not implied for functional use. Exposure to absolute maximum ratings for prolonged periods of time may affect device reliability. Note Book LCD Panel EMI Reduction IC Notice: The information in this document is subject to change without notice. 3 of 8 March 2007 rev 1.9 DC Electrical Characteristics (Test condition: All parameters are measured at room temperature (+25C) unless otherwise stated) P1819 Symbol VIL VIH IIL IIH IXOL IXOH VOL VOH ICC IDD VDD tON ZOUT Input Low voltage Input High voltage Parameter Min VSS - 0.3 2.0 -60.0 Typ Max 0.8 VDD + 0.3 -20.0 1.0 Unit V V A A mA mA V V mA mA Input Low current (inputs D_C, PD#, SRS) Input High current XOUT Output low current @ 0.4V, VDD = 3.3V XOUT Output high current @ 2.5V, VDD = 3.3V Output Low voltage VDD = 3.3V, IOL = 20mA Output High voltage VDD = 3.3V, IOH = 20mA Dynamic supply current normal mode 3.3V and 25pF probe loading Static supply current standby mode Operating Voltage Power up time (first locked clock cycle after power up) Clock Output impedance 2.0 12.0 12.0 0.4 2.5 7.1 fIN - min 4.5 3.0 3.3 0.18 50 26.9 fIN - max 3.6 V mS AC Electrical Characteristics Symbol fIN fOUT tLH* tHL* tJC tLTJ tD Parameter Input Frequency Output Frequency Output Rise time Measured from 0.8V to 2.0V Output Fall time Measured from 2.0V to 0.8V Jitter (cycle to cycle) Long Term Jitter,(1000 cycle) on Refout @ 27MHz Output Duty cycle Min 20 20 Typ Max 40 40 Unit MHz MHz nS nS 0.66 0.65 -200 475 45 50 55 200 pS pS % *tLH and tHL are measured into a capacitive load of 15pF Note Book LCD Panel EMI Reduction IC Notice: The information in this document is subject to change without notice. 4 of 8 March 2007 rev 1.9 P1819 Package Information 8-Pin SOIC Package E H D A2 A e B A 1 C L D Dimensions Symbol Min A1 A A2 B C D E e H L Inches Max 0.010 0.069 0.059 0.020 0.010 0.004 0.053 0.049 0.012 0.007 Millimeters Min Max 0.10 1.35 1.25 0.31 0.18 4.90 BSC 3.91 BSC 1.27 BSC 6.00 BSC 0.41 0 1.27 8 0.25 1.75 1.50 0.51 0.25 0.193 BSC 0.154 BSC 0.050 BSC 0.236 BSC 0.016 0 0.050 8 Note: Controlling dimensions are millimeters SOIC - 0.074 grams unit weight Note Book LCD Panel EMI Reduction IC Notice: The information in this document is subject to change without notice. 5 of 8 March 2007 rev 1.9 P1819 8-Pin TSSOP Package H E D A2 A e B A1 L C Dimensions Symbol Min A A1 A2 B c D E e H L 0.020 0 0.002 0.033 0.008 0.004 0.114 0.169 0.026 BSC 0.252 BSC 0.028 8 0.50 0 Inches Max 0.043 0.006 0.037 0.012 0.008 0.122 0.177 0.05 0.85 0.19 0.09 2.90 4.30 Millimeters Min Max 1.10 0.15 0.95 0.30 0.20 3.10 4.50 0.65 BSC 6.40 BSC 0.70 8 Note: Controlling dimensions are millimeters TSSOP - 0.0325 grams unit weight Note Book LCD Panel EMI Reduction IC Notice: The information in this document is subject to change without notice. 6 of 8 March 2007 rev 1.9 Ordering Codes Part Number P1819XF-08ST P1819XF-08SR P1819XF-08TT P1819XF-08TR P1819XG-08ST P1819XG-08SR P1819XG-08TT P1819XG-08TR P1819 Marking P1819XF P1819XF P1819XF P1819XF P1819XG P1819XG P1819XG P1819XG Package Type 8-pin SOIC, tube 8-pin SOIC, tape & reel 8-pin TSSOP, tube 8-pin TSSOP, tape & reel 8-pin SOIC, tube 8-pin SOIC, tape & reel 8-pin TSSOP, tube 8-pin TSSOP, tape & reel Temperature Commercial Commercial Commercial Commercial Commercial Commercial Commercial Commercial Products are available for industrial temperature range operation. Please contact factory for more information. Note: X=A/B/C/D/E/F/G/H/Q Device Ordering Information P1819X G-08TR SR - SOIC, T/R TT - TSSOP, TUBE TR - TSSOP, T/R ST - SOIC, TUBE Pin Count F =Lead Free and and RoHS compliant part G = GREEN PACKAGE, LEAD FREE, and RoHS Deviation (%) and Spread option Identifier DEVICE NUMBER Flow: P = Commercial Temperature Range (0C to 70C) I = Industrial Temperature Range (-40C to 85C) Note: X=A/B/C/D/E/F/G/H/Q Licensed under US patent #5,488,627, #6,646,463 and #5,631,920. Note Book LCD Panel EMI Reduction IC Notice: The information in this document is subject to change without notice. 7 of 8 March 2007 rev 1.9 P1819 PulseCore Semiconductor Corporation 1715 S. Bascom Ave Suite 200 Campbell, CA 95008 Tel: 408-879-9077 Fax: 408-879-9018 www.pulsecoresemi.com Copyright (c) PulseCore Semiconductor All Rights Reserved Part Number: P1819 Document Version: v1.9 Note: This product utilizes US Patent # 6,646,463 Impedance Emulator Patent issued to PulseCore Semiconductor, dated 11-11-2003 (c) Copyright 2007 PulseCore Semiconductor Corporation. All rights reserved. Our logo and name are trademarks or registered trademarks of PulseCore Semiconductor. All other brand and product names may be the trademarks of their respective companies. PulseCore reserves the right to make changes to this document and its products at any time without notice. PulseCore assumes no responsibility for any errors that may appear in this document. The data contained herein represents PulseCore's best data and/or estimates at the time of issuance. PulseCore reserves the right to change or correct this data at any time, without notice. If the product described herein is under development, significant changes to these specifications are possible. The information in this product data sheet is intended to be general descriptive information for potential customers and users, and is not intended to operate as, or provide, any guarantee or warrantee to any user or customer. PulseCore does not assume any responsibility or liability arising out of the application or use of any product described herein, and disclaims any express or implied warranties related to the sale and/or use of PulseCore products including liability or warranties related to fitness for a particular purpose, merchantability, or infringement of any intellectual property rights, except as express agreed to in PulseCore's Terms and Conditions of Sale (which are available from PulseCore). All sales of PulseCore products are made exclusively according to PulseCore's Terms and Conditions of Sale. The purchase of products from PulseCore does not convey a license under any patent rights, copyrights; mask works rights, trademarks, or any other intellectual property rights of PulseCore or third parties. PulseCore does not authorize its products for use as critical components in life-supporting systems where a malfunction or failure may reasonably be expected to result in significant injury to the user, and the inclusion of PulseCore products in such life-supporting systems implies that the manufacturer assumes all risk of such use and agrees to indemnify PulseCore against all claims arising from such use. Note Book LCD Panel EMI Reduction IC Notice: The information in this document is subject to change without notice. 8 of 8 |
Price & Availability of P1819XF-08SR
 |
|
|
|
|
All Rights Reserved © IC-ON-LINE 2003 - 2022 |
| [Add Bookmark] [Contact Us] [Link exchange] [Privacy policy] |
|
Mirror Sites : [www.datasheet.hk]
[www.maxim4u.com] [www.ic-on-line.cn]
[www.ic-on-line.com] [www.ic-on-line.net]
[www.alldatasheet.com.cn]
[www.gdcy.com]
[www.gdcy.net] |