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參數(shù)資料
| 型號： | P2042AF-08TR |
| 廠商： | ON Semiconductor |
| 文件頁數(shù)： | 3/7頁 |
| 文件大?。?/td> | 0K |
| 描述： | 30-110MHZ 3.3V GP EMI |
| 標準包裝： | 2,500 |
| 類型： | 擴展頻譜調(diào)頻調(diào)制器 |
| 應(yīng)用： | LCD 監(jiān)控器 |
| 安裝類型： | 表面貼裝 |
| 封裝/外殼： | 8-TSSOP（0.173"，4.40mm 寬） |
| 供應(yīng)商設(shè)備封裝： | 8-TSSOP |
| 包裝： | 帶卷 (TR) |
P2042A
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 102.19KHz. Refer to 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 102.19KHz.
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.
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相關(guān)代理商/技術(shù)參數(shù) |
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| P2042AF-08TT | 制造商:PULSECORE 制造商全稱:PulseCore Semiconductor 功能描述:LCD Panel EMI Reduction IC |
| P2042AG-08SR | 制造商:PULSECORE 制造商全稱:PulseCore Semiconductor 功能描述:LCD Panel EMI Reduction IC |
| P2042AG-08ST | 制造商:ALSC 制造商全稱:Alliance Semiconductor Corporation 功能描述:LCD Panel EMI Reduction IC |
| P2042AG-08TR | 制造商:PULSECORE 制造商全稱:PulseCore Semiconductor 功能描述:LCD Panel EMI Reduction IC |
| P2042AG-08TT | 制造商:PULSECORE 制造商全稱:PulseCore Semiconductor 功能描述:LCD Panel EMI Reduction IC |
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