SY89429 MICREL [Micrel Semiconductor], SY89429 Datasheet
SY89429
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SY89429 Summary of contents
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... PROGRAMMABLE FREQUENCY SYNTHESIZER (25MHz to 400MHz) DESCRIPTION The SY89429A is a general purpose, synthesized clock source targeting applications that require both serial and parallel interfaces. Its internal VCO will operate over a range of frequencies from 400MHz to 800MHz. The differential PECL output can be configured to be the VCO frequency divided ...
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... V V CC_QUIET CC1 400-800 MHz V CC_OUT T110 ÷ N (2,4,8,16) 7 FOUT ÷ 4 — LATCH 6 S_ ÷ M — CLOCK LATCH LOW — 5 FOUT — ÷ M — 2 FREF — 1 HIGH — 2-BIT SR 3-BIT SR 0 19,22 17,18 2 N[1:0] ClockWorks™ SY89429A +5. FOUT 23 FOUT 20 TEST ...
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... These pins are the negative supply for the chip and are normally all connected to ground. for proper operation. OTHER LOOP_FILTER . LOAD This is an analog I/O pin that provides the loop filter for the PLL. LOOP_REF This is an analog I/O pin that provides a reference voltage for the PLL ClockWorks™ SY89429A . VCC1 ...
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... LOW until sometime after LOAD held LOW, on the LOW- LOAD , the parallel inputs are captured. LOAD must meet set-up and DATA held HIGH, the configuration latches will LOAD input. See the programming section for more SY89429A • • • 1 ...
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... M register with the final eight bits of the data stream on the S_ the most significant bit is loaded first (T2, N1 and M8). When T[2:0] is set to 100 the SY89429A is placed in PLL bypass mode. In this mode the S_ into the M and N dividers. The N divider drives the FOUT differential pair and the M counter drives the TEST output pin ...
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... ClockWorks™ SY89429A –2V –2V Condition — — 2. 0. –12mA –2.0mA 8mA OUT — Condition Fundamental Cyrstal ...
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... Micrel TIMING DIAGRAM S_ DATA S_ CLOCK S_ LOAD M[8:0] N[1:0] P_ LOAD PRODUCT ORDERING CODE Ordering Package Code Type SY89429AJC J28-1 SY89429AJCTR J28-1 SY89429AZC Z28-1 SY89429AZCTR Z28-1 t HOLD t SET-UP t SET-UP t HOLD t SET-UP Operating Range Commercial Commercial Commercial Commercial 7 ClockWorks™ SY89429A ...
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... Micrel 28 LEAD SOIC .300" WIDE (Z28-1) 8 ClockWorks™ SY89429A Rev. 02 ...
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... This information is believed to be accurate and reliable, however no responsibility is assumed by Micrel for its use nor for any infringement of patents or other rights of third parties resulting from its use. No license is granted by implication or otherwise under any patent or patent right of Micrel Inc (408) 914-7878 http://www.micrel.com FAX WEB © 2000 Micrel Incorporated 9 ClockWorks™ SY89429A Rev. 03 ...