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| 型号： | DS1083LR-U+ |
| 厂商： | Maxim Integrated Products |
| 文件页数： | 4/5页 |
| 文件大小： | 0K |
| 描述： | IC CLOCK MOD SS 3.3V TSOT23-6 |
| 标准包装： | 313 |
| 类型： | 扩展频谱时钟调制器 |
| PLL： | 是 |
| 主要目的： | LCD 面板 |
| 输入： | 时钟 |
| 输出： | LVCMOS |
| 电路数： | 1 |
| 比率 - 输入:输出： | 1:1 |
| 差分 - 输入:输出： | 无/无 |
| 频率 - 最大： | 134MHz |
| 电源电压： | 3 V ~ 3.6 V |
| 工作温度： | -40°C ~ 125°C |
| 安装类型： | 表面贴装 |
| 封装/外壳： | SOT-23-6 细型，TSOT-23-6 |
| 供应商设备封装： | TSOT-23-6 |
| 包装： | 管件 |
Detailed Description
The DS1083L modulates an input clock to provide a cen-
ter-dithered spread-spectrum output. A 16MHz to
134MHz clock is applied to the CLKIN pin. The PLL
dithers the output clock about its center frequency at a
user-selectable magnitude. The user is required to cycle
power to the device each time there is a change in the
input frequency, for the PLL to lock correctly. This
ensures proper output frequency and dither rate. The
desired spread-spectrum magnitude is selected using
input pins SMSEL1 and SMSEL2 (see the
Pin Description
for details). The DS1083L is capable of generating
spread-spectrum clocks from 16MHz to 134MHz.
Dither-Rate Selection
The output spread-spectrum dither rate is automatically
adjusted depending on the input frequency, to maxi-
mize EMI reduction.
The dither cycle rate is:
fIN/512, if fIN is between 16MHz and 33MHz
fIN/1024, if fIN is between 33MHz and 64MHz
fIN/2048, if fIN is between 64MHz and 134MHz
On power-up, the output clock (SSO) remains three-
stated until it reaches a stable frequency (fSSO). The
dither rate is selected by sampling the input clock at
power-up.
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.
Chip Information
SUBSTRATE CONNECTED TO GROUND
DS1083L
16MHz to 134MHz Spread-Spectrum
Clock Modulator for LCD Panels
4
_______________________________________________________________________________________
Pin Description
PIN
NAME
DESCRIPTION
1
CLKIN
Clock Input. 16MHz to 134MHz clock input (fIN).
2
GND
Ground
3
SSO
Spread-Spectrum Clock Output. Outputs a center-dithered spread-spectrum version of the clock input at
CLKIN.
Spread-Spectrum Magnitude Select Inputs. These digital inputs select the desired spread-spectrum
magnitude as shown in the table below. Both inputs contain pullup resistors (RPU) to VCC.
SMSEL2
SMSEL1
MAGNITUDE SELECTED (%)
4
SMSEL2
0
±2
0
1
±1.5
1
0
±1
5SMSEL1
1
±0.5
6
VCC
Supply Voltage
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相关代理商/技术参数 |
参数描述 |
|---|---|
| DS1083LR-U+ | 功能描述:时钟发生器及支持产品 16-134 MHz Spread Spctrm CLK Mod 4 LCD RoHS:否 制造商:Silicon Labs 类型:Clock Generators 最大输入频率:14.318 MHz 最大输出频率:166 MHz 输出端数量:16 占空比 - 最大:55 % 工作电源电压:3.3 V 工作电源电流:1 mA 最大工作温度:+ 85 C 安装风格:SMD/SMT 封装 / 箱体:QFN-56 |
| DS1085 | 制造商:DALLAS 制造商全称:Dallas Semiconductor 功能描述:EconOscillator Frequency Synthesizer |
| DS1085L | 制造商:MAXIM 制造商全称:Maxim Integrated Products 功能描述:3.3V EconOscillator Frequency Synthesizer |
| DS1085LZ-12 | 功能描述:可编程振荡器 3.3V EconOscillator f Synthesizer RoHS:否 制造商:IDT 封装 / 箱体:5 mm x 7 mm x 1.5 mm 频率:15.476 MHz to 866.67, 975 MHz to 1300 MHz 频率稳定性:+/- 50 PPM 电源电压:3.63 V 负载电容:10 pF 端接类型:SMD/SMT 输出格式:LVPECL 最小工作温度:- 40 C 最大工作温度:+ 85 C 尺寸:7 mm W x 5 mm L x 1.5 mm H 封装: |
| DS1085LZ-12+ | 功能描述:可编程振荡器 3.3V EconOscillator f Synthesizer RoHS:否 制造商:IDT 封装 / 箱体:5 mm x 7 mm x 1.5 mm 频率:15.476 MHz to 866.67, 975 MHz to 1300 MHz 频率稳定性:+/- 50 PPM 电源电压:3.63 V 负载电容:10 pF 端接类型:SMD/SMT 输出格式:LVPECL 最小工作温度:- 40 C 最大工作温度:+ 85 C 尺寸:7 mm W x 5 mm L x 1.5 mm H 封装: |
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