- 您现在的位置：买卖IC网 > PDF目录67108 > I2042A-08ST 2042 SERIES, PLL BASED CLOCK DRIVER, 1 TRUE OUTPUT(S), 0 INVERTED OUTPUT(S), PDSO8 PDF资料下载
参数资料
| 型号： | I2042A-08ST |
| 元件分类： | 时钟及定时 |
| 英文描述： | 2042 SERIES, PLL BASED CLOCK DRIVER, 1 TRUE OUTPUT(S), 0 INVERTED OUTPUT(S), PDSO8 |
| 封装： | SOIC-8 |
| 文件页数： | 3/8页 |
| 文件大小： | 354K |
| 代理商： | I2042A-08ST |
August 2005
P2042A
rev 1.3
Notice: The information in this document is subject to change without notice.
LCD Panel EMI Reduction IC
3 of 8
Spread Spectrum Selection
The Modulation Selection Table defines 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, pin1).
For example, P2042A is designed for high-resolution, flat panel applications and is able to support an XGA (1024 x 768) flat
panel operating at 65MHz (FIN) clock speed. A spreading selection of CP0=0, CP1=1 and SR0=0 provides a percentage
deviation of ±1.00% from FIN. This results in the frequency on ModOUT being swept from 65.65 to 64.35MHz at a modulation
rate of 101.54KHz. Refer Modulation Selection Table. The example in the following illustration is a common EMI reduction
method for a 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
Modulated 65MHz signal with
±1.00% deviation and
modulation rate of 101.54KHz.
This signal is connected back to
the spread spectrum input pin
(SSIN) of the graphics
accelerator.
1
2
3
4
CLKIN
CP0
CP1
VSS
SR0
5
6
7
8
SSON#
ModOUT
VDD
65MHz from graphics accelerator
+3.3V
0.1F
P2042A
Digital control for the SS enable
or disable
相关PDF资料 |
PDF描述 |
|---|---|
| I2042AG-08TT | 2042 SERIES, PLL BASED CLOCK DRIVER, 1 TRUE OUTPUT(S), 0 INVERTED OUTPUT(S), PDSO8 |
| I2560B-08TR | 32 MHz, OTHER CLOCK GENERATOR, PDSO8 |
| I2560BG-08TT | 32 MHz, OTHER CLOCK GENERATOR, PDSO8 |
| I2560BG-08ST | 32 MHz, OTHER CLOCK GENERATOR, PDSO8 |
| I74F244D-T | F/FAST SERIES, DUAL 4-BIT DRIVER, TRUE OUTPUT, PDSO20 |
相关代理商/技术参数 |
参数描述 |
|---|---|
| I2042AF-08SR | 制造商:PULSECORE 制造商全称:PulseCore Semiconductor 功能描述:LCD Panel EMI Reduction IC |
| I2042AF-08ST | 制造商:PULSECORE 制造商全称:PulseCore Semiconductor 功能描述:LCD Panel EMI Reduction IC |
| I2042AF-08TR | 制造商:PULSECORE 制造商全称:PulseCore Semiconductor 功能描述:LCD Panel EMI Reduction IC |
| I2042AF-08TT | 制造商:PULSECORE 制造商全称:PulseCore Semiconductor 功能描述:LCD Panel EMI Reduction IC |
| I2042AG-08SR | 制造商:PULSECORE 制造商全称:PulseCore Semiconductor 功能描述:LCD Panel EMI Reduction IC |
发布紧急采购，3分钟左右您将得到回复。