P2040CG-08SR [PULSECORE]

LCD Panel EMI Reduction IC; 液晶面板降低EMI IC
P2040CG-08SR
型号: P2040CG-08SR
厂家: PulseCore Semiconductor    PulseCore Semiconductor
描述:

LCD Panel EMI Reduction IC
液晶面板降低EMI IC

时钟驱动器 逻辑集成电路 光电二极管 CD
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中文:  中文翻译
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November 2006  
rev 1.6  
P2040C  
LCD Panel EMI Reduction IC  
Features  
system wide reduction of EMI of all clock dependent  
signals. The P2040C allows significant system cost  
savings by reducing the number of circuit board layers and  
shielding that are traditionally required to pass EMI  
regulations.  
FCC approved method of EMI attenuation.  
Provides up to 15dB of EMI suppression  
Generates a low EMI spread spectrum clock of  
the input frequency  
50MHz to 173MHz input frequency range  
Optimized for 54MHz, 65MHz, 81MHz, 140MHz,  
and 162MHz pixel clock frequencies  
Internal loop filter minimizes external components  
and board space  
8 selectable spread ranges, up to ± 2.2%  
SSON# control pin for spread spectrum enable  
and disable options  
2 selectable modulation rates  
Low Cycle-to-cycle jitter  
3.3V Operating Voltage  
Ultra low power CMOS design  
The P2040C uses the most efficient and optimized  
modulation profile approved by the FCC and is  
implemented in a proprietary all-digital method. The  
P2040C 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 result in a 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’.  
Supports most mobile graphic accelerator and  
LCD timing controller specifications  
Available in 8 pin SOIC and TSSOP Packages  
Applications  
Product Description  
The P2040C is targeted towards digital flat panel  
applications for Notebook PCs, Palm-size PCs, Office  
Automation Equipments and LCD Monitors.  
The P2040C is a selectable spread spectrum frequency  
modulator designed specifically for digital flat panel  
applications. The P2040C reduces electromagnetic  
interference (EMI) at the clock source which provides  
Block Diagram  
VDD  
SR0 SR1 MRA  
SSON#  
PLL  
Modulation  
CLKIN  
Frequency  
Divider  
Output  
Divider  
Phase  
Loop  
Filter  
VCO  
Detector  
Feedback  
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.  
November 2006  
rev 1.6  
P2040C  
Pin Configuration  
8
1
CLKIN  
MRA  
SR1  
VDD  
2
7
SR0  
P2040C  
6
3  
ModOUT  
SSON#  
5
4
VSS  
Pin Description  
Pin  
Pin#  
Type  
Description  
Name  
1
2
3
4
CLKIN  
MRA  
SR1  
I
I
External reference frequency input. Connect to externally generated reference signal.  
Digital logic input used to select modulation rate. This pin has an internal pull-up resistor.  
Digital logic input used to select Spreading Range. This pin has an internal pull-up resistor.  
Ground to entire chip. Connect to system ground.  
I
VSS  
P
Digital logic input used to enable Spread Spectrum function (Active LOW). Spread Spectrum  
5
SSON#  
I
function enabled when LOW, disabled when HIGH. This pin has an internal pull-low resistor.  
6
7
8
ModOUT  
SR0  
O
I
Spread spectrum Clock Output.  
Digital logic input used to select Spreading Range. This pin has an internal pull-up resistor.  
Power supply for the entire chip.  
VDD  
P
Modulation Selection (Commercial) – Table 1  
Spreading Range  
MRA SR1 SR0  
Modulation Rate  
54MHz  
±1.4%  
±2.0%  
±1.1%  
±1.8%  
±1.3%  
±2.2%  
±1.4%  
±2.1%  
65MHz  
±1.2%  
±1.9%  
±0.9%  
±1.5%  
±1.3%  
±2.1%  
±1.3%  
±2.1%  
81MHz  
±1.0%  
±1.6%  
±0.5%  
±1.0%  
±1.3%  
±2.1%  
±1.4%  
±2.1%  
140MHz  
±0.6%  
±1.0%  
±0.3%  
±0.54%  
±1.25%  
±2.0%  
±1.2%  
±1.9%  
162MHz  
±0.4%  
±0.8%  
±0.3%  
±0.4%  
±1.1%  
±1.8%  
±0.9%  
±1.4%  
0
0
0
0
1
1
1
1
0
0
1
1
0
0
1
1
0
1
0
1
0
1
0
1
(Fin/80) * 62.49KHz  
(Fin/80) * 62.49KHz  
(Fin/80) * 62.49KHz  
(Fin/80) * 62.49KHz  
(Fin/80) * 20.83KHz  
(Fin/80) * 20.83KHz  
(Fin/80) * 20.83KHz  
(Fin/80) * 20.83KHz  
LCD Panel EMI Reduction IC  
2 of 9  
Notice: The information in this document is subject to change without notice.  
November 2006  
rev 1.6  
P2040C  
Spread Spectrum Selection  
Table 1 illustrates the possible spread spectrum options. The optimal setting should minimize system EMI to the fullest  
without affecting system performance. The spreading is described as a percentage deviation of the center frequency  
(Note: The center frequency is the frequency of the external reference input on CLKIN, Pin 1).  
Example: P2040C is designed for high resolution flat panel applications and is able to support panel frequencies from  
50MHz to 173MHz. For a 65MHz pixel clock frequency, a spreading selection of MRA=0, SR1=1 and SR0 =1 provides a  
percentage deviation of ±1.50% (see Table 1). This result in frequency on ModOUT being swept from 64.03MHz to  
65.98MHz at a modulation rate of 50.77KHz (see Table 1). This particular example (see Figure below) given here is a  
common EMI reduction method for notebook LCD panel and has already been implemented by most of the leading OEM  
and mobile graphic accelerator manufacturers.  
Application Schematic for Mobile LCD Graphics Controllers  
+3.3V  
Modulated 65MHz signal with  
65MHz from graphics accelerator  
±1.5 % deviation and modulation  
rate of 50.77KHz. This signal is  
connected back to the spread  
spectrum input pin (SSIN) of the  
graphics accelerator.  
CLKIN  
1
2
3
4
VDD  
SR0  
8
7
MRA  
SR1  
VSS  
0.1µF  
ModOUT  
SSON#  
6
5
Digital control for the SS enable  
or disable  
P2040C  
LCD Panel EMI Reduction IC  
3 of 9  
Notice: The information in this document is subject to change without notice.  
November 2006  
rev 1.6  
P2040C  
Absolute Maximum Ratings  
Symbol  
Parameter  
Rating  
-0.5 to +4.6  
-65 to +125  
-40 to +125  
260  
Unit  
V
°C  
°C  
°C  
VDD, VIN  
TSTG  
TA  
Voltage on any pin with respect to Ground  
Storage temperature  
Operating temperature  
Ts  
Max. Soldering Temperature (10 sec)  
Thermal Resistance from Junction For SOIC Package  
156.5  
ө
°C/W  
°C  
JA  
to Ambient ( No Air Flow)  
Junction Temperature  
For TSSOP Package  
124  
TJ  
150  
2
Static Discharge Voltage  
TDV  
KV  
(As per JEDEC STD22- A114-B)  
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.  
DC Electrical Characteristics  
(Test condition: All parameters are measured at room temperature (+25°C) unless otherwise stated)  
Symbol  
VIL  
Parameter  
Min  
VSS - 0.3  
Typ  
-
-
Max  
0.8  
VDD + 0.3  
Unit  
V
V
Input low voltage  
Input high voltage  
VIH  
2.0  
IIL  
IIH  
VOL  
VOH  
IDD  
ICC  
VDD  
tON  
Input low current (pull-up resistor on inputs SR0, SR1 and MRA)  
Input high current (pull-down resistor on input SSON#)  
Output low voltage (VDD = 3.3V, IOL = 20mA)  
Output high voltage (VDD = 3.3V, IOL = 20mA)  
Static supply current standby mode  
Dynamic supply current (3.3V and 10pF loading)  
Operating Voltage  
Power-up time (first locked cycle after power up)  
Clock output impedance  
-
-
-
-
-
-
-
-40  
40  
0.4  
-
µA  
µA  
V
2.5  
-
9
3.0  
-
-
V
0.7  
16  
3.3  
0.18  
50  
-
mA  
mA  
V
mS  
22  
3.6  
-
ZOUT  
-
AC Electrical Characteristics  
Symbol  
Parameter  
Min  
50  
0.3  
0.3  
-
Typ  
Max  
173  
1.0  
Unit  
fIN  
tLH*  
tHL*  
tJC  
Input frequency  
MHz  
nS  
nS  
pS  
%
Output rise time (measured at 0.8V to 2.0V)  
Output fall time (measured at 2.0V to 0.8V)  
Jitter (cycle to cycle)  
0.7  
0.7  
-
1.0  
360  
55  
tD  
Output duty cycle  
45  
50  
*tLH and tHL are measured into a capacitive load of 15pF  
LCD Panel EMI Reduction IC  
4 of 9  
Notice: The information in this document is subject to change without notice.  
November 2006  
rev 1.6  
P2040C  
Package Information  
8-lead (150-mil) SOIC Package  
H
E
D
A2  
A
C
θ
e
A1  
L
B
Dimensions  
Symbol  
Inches  
Millimeters  
Min  
Max  
0.010  
0.069  
0.059  
0.020  
0.010  
Min  
0.10  
1.35  
1.25  
0.31  
0.18  
Max  
0.25  
1.75  
1.50  
0.51  
0.25  
A1  
A
0.004  
0.053  
0.049  
0.012  
0.007  
A2  
B
C
D
E
0.193 BSC  
0.154 BSC  
0.050 BSC  
0.236 BSC  
4.90 BSC  
3.91 BSC  
1.27 BSC  
6.00 BSC  
e
H
L
0.016  
0°  
0.050  
8°  
0.41  
0°  
1.27  
8°  
θ
LCD Panel EMI Reduction IC  
5 of 9  
Notice: The information in this document is subject to change without notice.  
November 2006  
rev 1.6  
P2040C  
8-lead TSSOP (4.40-MM Body)  
H
E
D
A2  
A
C
θ
e
A1  
L
B
Dimensions  
Symbol  
Inches  
Millimeters  
Min  
Max  
Min  
Max  
A
A1  
A2  
B
0.043  
0.006  
0.037  
0.012  
0.008  
0.122  
0.177  
1.10  
0.002  
0.033  
0.008  
0.004  
0.114  
0.169  
0.05  
0.85  
0.19  
0.09  
2.90  
4.30  
0.15  
0.95  
0.30  
0.20  
3.10  
4.50  
c
D
E
e
0.026 BSC  
0.252 BSC  
0.65 BSC  
6.40 BSC  
H
L
0.020  
0°  
0.028  
8°  
0.50  
0°  
0.70  
8°  
θ
LCD Panel EMI Reduction IC  
6 of 9  
Notice: The information in this document is subject to change without notice.  
November 2006  
rev 1.6  
P2040C  
Ordering Information  
Part Number  
P2040CF-08ST  
P2040CF-08SR  
P2040CF-08TT  
P2040CF-08TR  
I2040CF-08ST  
I2040CF-08SR  
I2040CF-08TT  
I2040CF-08TR  
X2040CF-08ST  
X2040CF-08SR  
X2040CF-08TT  
X2040CF-08TR  
P2040CG-08ST  
P2040CG-08SR  
P2040CG-08TT  
P2040CG-08TR  
I2040CG-08ST  
I2040CG-08SR  
I2040CG-08TT  
I2040CG-08TR  
X2040CG-08ST  
X2040CG-08SR  
X2040CG-08TT  
X2040CG-08TR  
Marking  
P2040CF  
P2040CF  
P2040CF  
P2040CF  
I2040CF  
I2040CF  
I2040CF  
I2040CF  
X2040CF  
X2040CF  
X2040CF  
X2040CF  
P2040CG  
P2040CG  
P2040CG  
P2040CG  
I2040CG  
I2040CG  
I2040CG  
I2040CG  
X2040CG  
X2040CG  
X2040CG  
X2040CG  
Package Type  
8-Pin SOIC, TUBE, Pb Free  
Temperature  
Commercial  
Commercial  
Commercial  
Commercial  
8-Pin SOIC, TAPE & REEL, Pb Free  
8-Pin TSSOP, TUBE, Pb Free  
8-Pin TSSOP, TAPE & REEL, Pb Free  
8-Pin SOIC, TUBE, Pb Free  
8-Pin SOIC, TAPE & REEL, Pb Free  
8-Pin TSSOP, TUBE, Pb Free  
8-Pin TSSOP, TAPE & REEL, Pb Free  
8-Pin SOIC, TUBE, Pb Free  
8-Pin SOIC, TAPE & REEL, Pb Free  
8-Pin TSSOP, TUBE, Pb Free  
8-Pin TSSOP, TAPE & REEL, Pb Free  
8-Pin SOIC, TUBE, Green  
8-Pin SOIC, TAPE & REEL, Green  
8-Pin TSSOP, TUBE, Green  
8-Pin TSSOP, TAPE & REEL, Green  
8-Pin SOIC, TUBE, Green  
8-Pin SOIC, TAPE & REEL, Green  
8-Pin TSSOP, TUBE, Green  
8-Pin TSSOP, TAPE & REEL, Green  
8-Pin SOIC, TUBE, Green  
8-Pin SOIC, TAPE & REEL, Green  
8-Pin TSSOP, TUBE, Green  
Industrial  
Industrial  
Industrial  
Industrial  
Automotive  
Automotive  
Automotive  
Automotive  
Commercial  
Commercial  
Commercial  
Commercial  
Industrial  
Industrial  
Industrial  
Industrial  
Automotive  
Automotive  
Automotive  
Automotive  
8-Pin TSSOP, TAPE & REEL, Green  
LCD Panel EMI Reduction IC  
7 of 9  
Notice: The information in this document is subject to change without notice.  
November 2006  
rev 1.6  
P2040C  
Device Ordering Information  
P 2 0 4 0 C F - 0 8 S T  
Package:  
ST – SOIC, TUBE  
SR - SOIC, T/R  
TT – TSSOP, TUBE  
TR - TSSOP, T/R  
PIN COUNT  
F = Pb FREE and RoHS COMPLIANT PART  
G = GREEN PACKAGE, LEAD FREE, and RoHS  
DEVICE NUMBER  
P = Commercial Temperature Range (0°C to 70°C)  
I = Industrial Temperature Range (-40°C to 85°C)  
X = Automotive Temperature Range (-40°C to 125°C)  
Licensed under U.S Patent Nos 5,488,627 and 5,631,921  
LCD Panel EMI Reduction IC  
8 of 9  
Notice: The information in this document is subject to change without notice.  
November 2006  
rev 1.6  
P2040C  
PulseCore Semiconductor Corporation  
1715 S. Bascom Ave Suite 200  
Campbell, CA 95008  
Copyright © PulseCore Semiconductor  
All Rights Reserved  
Preliminary Information  
Part Number: P2040C  
Document Version: v1.6  
Tel: 408-879-9077  
Fax: 408-879-9018  
www.pulsecoresemi.com  
Note: This product utilizes US Patent # 6,646,463 Impedance Emulator Patent issued to PulseCore Semiconductor, dated 11-11-2003  
© Copyright 2006 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.  
LCD Panel EMI Reduction IC  
9 of 9  
Notice: The information in this document is subject to change without notice.  

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