IDT9170B CLOCK SYNCHRONIZER AND MULTIPLIER
●The IDT9170B generates an output clock which is synchronized to a given continuous input clock with zero delay (±1ns at 5 V VDD). Using IDT’s proprietary phase-locked loop (PLL) analog CMOS technology, the IDT9170B is useful for regenerating clocks in high speed systems where skew is a major concern. By the use of the two select pins, multiples or divisions of the input clock can be generated with zero delay (see Tables 2 and 3). The standard versions produce two outputs, where CLK2 is always a divide by two version of CLK1.
●The IDT9170B is also useful to recover poor duty cycle clocks. A 50 MHz signal with a 20/80% duty cycle, for example, can be regenerated to the 48/52% typical of the part.
●The IDT9170B allows the user to control the PLL feedback, making it possible, with an additional 74F240 octal buffer (or other such device that offers controlled skew outputs), to synchronize up to 8 output clocks with zero delay compared to the input (see Figure 1).
■FEATURES
●On-chip Phase-Locked Loop for clocks synchronization.
●Synchronizes frequencies up to 107 MHz (output) @ 5.0 V
●±1ns skew (max) between input & output clocks @ 5.0 V
●Can recover poor duty cycle clocks
●CLK1 to CLK2 skew controlled to within ±1ns @ 5.0 V
●3.0 - 5.5 V supply range
●Low power CMOS technology
●Small 8-pin DIP or SOIC package
●On chip loop filter
●IDT9170B-01 for output clocks 20-107 MHz @ 5.0 V, 20 - 66.7 MHz @ 3.3 V
●IDT9170B-02 for output clocks 5-26.75 MHz @ 5.0 V, 5 - 16.7 MHz @ 3.3 V
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IDT9170B 、 9170B-02CS08LFT 、 9170B-02CS08LF 、 9170B-01CS08LFT 、 9170B-01CS08LF 、 IDT9170B-01 、 IDT9170B-02 |
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Datasheet |
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Please see the document for details |
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SOIC |
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English Chinese Chinese and English Japanese |
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052609 |
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REV B |
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