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参数资料
| 型号： | DS1075M-60 |
| 厂商： | MAXIM INTEGRATED PRODUCTS INC |
| 元件分类： | XO, clock |
| 英文描述： | 60 MHz, OTHER CLOCK GENERATOR, PDIP8 |
| 封装： | 0.300 INCH, DIP-8 |
| 文件页数： | 15/18页 |
| 文件大小： | 251K |
| 代理商： | DS1075M-60 |
DS1075
6 of 18
OPERATION OF OUTPUT ENABLE
Since the output enable, internal master oscillator and/or external master oscillator are likely all
asynchronous there is the possibility of timing difficulties in the application. To minimize these
difficulties the DS1075 features an “enabling sequencer” to produce predictable results when the device is
enabled and disabled. In particular the output gating is configured so that truncated output pulses can
never be produced.
ENABLE TIMING
The output enable function is produced by sampling the OE input with the output from the prescaler mux
(MCLK) and gating this with the output from the programmable divider. The exact behavior of the
device is therefore dependent on the setup time (tSU) from a transition on the OE input to the rising edge
of MCLK. If the actual setup time is less than tSUEM then one more complete cycle of MCLK will be
required to complete the enable or disable operation (see diagrams). This is unlikely to be of any
consequence in most applications, and then only if the value for N is small. In general, the output will
make its first positive transition between approximately one and two clock periods of MCLK after the
rising edge of OE.
FIGURE 4
DISABLE TIMING
If OE goes low while OUT is high, the output will be disabled on the completion of the output pulse. If
OUT is low, the disabling behavior will be dependent on the setup time between the falling edge of OE
and the rising edge of MCLK. If tSU < tSUEM the result will be one additional pulse appearing on the
output before disabling occurs. If the device is in divide-by-one mode, the disabling occurs slightly
differently. In this case if tSU > tSUEM one additional output pulse will appear, if tSU < tSUEM then two
additional output pulses will appear.
The following diagrams illustrate the timing in each of these cases.
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相关代理商/技术参数 |
参数描述 |
|---|---|
| DS1075M-60IND | 制造商:未知厂家 制造商全称:未知厂家 功能描述:Oscillator/Divider |
| DS1075M-60N | 功能描述:可编程振荡器 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: |
| DS1075M-66 | 功能描述:可编程振荡器 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: |
| DS1075M-66IND | 制造商:未知厂家 制造商全称:未知厂家 功能描述:Oscillator/Divider |
| DS1075M-66N | 功能描述:可编程振荡器 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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