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參數(shù)資料
DS1181L
20MHz to 134MHz Spread-Spectrum
Clock Modulator for LCD Panels
Spread-Spectrum Enable
On power-up, the output clock (SSO) remains three-stat-
ed until the internal PLL reaches a stable frequency. The
SSEN input can be used to disable the spread-spec-
trum modulation and to three-state the SSO output. If the
SSEN pin is pulled high, the spread-spectrum modula-
tion is turned off, but the device still uses the internal
PLL to generate the clock signal at SSO. If the SSEN pin
is floated, the output is three-stated.
Applications Information
Power-Supply Decoupling
To achieve best results, it is highly recommended that a
decoupling capacitor is used on the IC power-supply
pins. Typical values of decoupling capacitors are 0.01F
and 0.1F. Use a high-quality, ceramic, surface-mount
capacitor, and mount it as close as possible to the VCC
and GND pins of the IC to minimize lead inductance.
fIN + (0.5%, 1.0%, 1.5%, OR 2.0% OF fIN)
fIN
fIN - (0.5%, 1.0%, 1.5%, OR 2.0% OF fIN)
fSSO
TIME
1
DITHER CYCLE
RATE
DITHER AMOUNT
(
±0.5%, ±1.0%, ±1.5%, OR ±2.0%)
CLKIN RANGE (MHz)
DITHER RATE
20 TO 134
fIN/832
IF SSEN = 1
Figure 1. DS1181L Spread-Spectrum Frequency Modulation
CLKIN
SMSEL1
SMSEL2
GND
CRSEL
VCC
DECOUPLING
CAPACITOR
VCC
SSO
fIN = 20MHz TO
134MHz
NOTE: IN THE ABOVE CONFIGURATION WITH SMSEL1, SMSEL2, AND SSEN CONNECTED TO GND AS WELL AS
CRSEL CONNECTED TO VCC, THE DEVICE IS CONFIGURED WITH A SPREAD-SPECTRUM MAGNITUDE OF
±2.0%,
AND ALLOWS A CLKIN BETWEEN 20MHz and 38MHz.
fSSO
DITHERED
SSEN
DS1181L
Typical Operating Circuit
PACKAGE TYPE
PACKAGE CODE
DOCUMENT NO.
8 TSSOP
H8+3
Package Information
For the latest package outline information and land patterns, go to www.maxim-ic.com/packages.
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參數(shù)描述 |
|---|---|
| DS1181LE+ | 功能描述:時鐘發(fā)生器及支持產(chǎn)品 Spread-Spectrum CLK Mod for LCD Panels RoHS:否 制造商:Silicon Labs 類型:Clock Generators 最大輸入頻率:14.318 MHz 最大輸出頻率:166 MHz 輸出端數(shù)量:16 占空比 - 最大:55 % 工作電源電壓:3.3 V 工作電源電流:1 mA 最大工作溫度:+ 85 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:QFN-56 |
| DS1181LE+T | 功能描述:時鐘發(fā)生器及支持產(chǎn)品 Spread-Spectrum CLK Mod for LCD Panels RoHS:否 制造商:Silicon Labs 類型:Clock Generators 最大輸入頻率:14.318 MHz 最大輸出頻率:166 MHz 輸出端數(shù)量:16 占空比 - 最大:55 % 工作電源電壓:3.3 V 工作電源電流:1 mA 最大工作溫度:+ 85 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:QFN-56 |
| DS1182 | 制造商:OSRAM 功能描述:LAMP DULUX WARM 11W |
| DS1184 | 制造商:OSRAM 功能描述:LAMP DULUX S COOL 11W 制造商:OSRAM 功能描述:LAMP, DULUX, S, COOL, 11W 制造商:OSRAM 功能描述:LAMP, DULUX, S, COOL, 11W; Supply Voltage:91V; Lamp Base Type:2 Pin; Power Rating:11W; Luminous Flux:900lm; Length:237mm; Bulb Diameter:19.5mm; Colour Temperature Typ:4000K; SVHC:No SVHC (19-Dec-2012); Average Bulb Life:8000h; ;RoHS Compliant: Yes 制造商:OSRAM 功能描述:LAMP, DULUX, S, COOL, 11W ;ROHS COMPLIANT: YES |
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