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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： | 12/18页 |
| 文件大小： | 251K |
| 代理商： | DS1075M-60 |
DS1075
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PIN DESCRIPTIONS
Input/Output Pin (IN/OUT): This pin is the main oscillator output, with a frequency determined by clock
reference, M and N dividers. Except in programming mode this pin is always an output and will be
referred to as “OUT”. In programming mode this pin will be referred to as “IN”.
External Oscillator Input (OSCIN): This pin can be used to supply an external reference frequency to
the device.
Crystal Oscillator Connection (XTAL): A crystal can be connected between this pin and OSCIN to
provide an alternative frequency reference. If a crystal is not used this pin should be left open.
Output Enable Function (OE pin): The DS1075 also features a “synchronous” output enable. When
OE is at a high logic level the oscillator free runs. When this pin is taken low OUT is held low,
immediately if OUT is already low, or at it’s next high-to-low transition if OUT is high. This prevents
any possible truncation of the output pulse width when the enable is used. While the output is disabled
the master oscillator continues to run (producing an output at OUT0, if the EN0 bit = 0) but the internal
counters (/N) are reset. This results in a constant phase relationship between OE’s return to a high level
and the resulting OUT signal. When the enable is released OUT will make its first transition within one
to two clock periods of the master clock.
Power-Down/Select Function ( PDN / SELX PDN/SELX pin): The Power-Down/Select ( PDN / SELX ) pin
has a user-selectable function determined by one bit ( PDN bit) of the user-programmable memory.
According to which function is selected, this pin will be referred to as PDN or SELX .
If the Power-Down function is selected (PDN bit = 1) a low logic level on this pin can be used to make
the device stop oscillating (active low) and go into a reduced power consumption state. The “Enabling
Sequencer” circuitry will first disable OUT in the same way as when OE is used. Next OUT0 will be
disabled in a similar fashion. Finally the oscillator circuitry will be disabled. In this mode both outputs
will go into a high impedance state. The power consumption in the power-down state is much less than if
OE is used because the internal oscillator (if used) is completely powered down. Even if an external
reference or a crystal is used all of the on-chip buffers are powered down to minimize current drain.
Consequently the device will take considerably longer to recover (i.e., achieve stable oscillation) from a
power-down condition than if the OE is used.
If the Select function is chosen (PDN bit = 0) this pin can be used to switch between the internal
oscillator and an external reference (or crystal) on the fly. When this mode is chosen the E/ I select bit is
overridden, a high logic level on SELX will select the internal oscillator, a low logic level will select the
external reference (or crystal oscillator).
Reference Output (OUT0 pin): A reference output, OUT0, is also available from the output of the
reference select mux. This output is especially useful as a buffered output of a crystal defined master
frequency. OUT0 is unaffected by the OE pin, but is disabled in a glitchless fashion if the device is
powered down. If this output is not required it can be permanently disabled by setting the EN0 bit to one,
and there will be a corresponding reduction in overall power consumption.
USER-PROGRAMMABLE REGISTERS
The following registers can be programmed by the user to determine operating frequency and mode of
operation. Details of how these registers are programmed can be found in a later section, in this section
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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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