SY604JZ - 255-Tap 4-40ns Delay Line IC | Microchip
부품 번호: SY604JZ ✓ 활성SY604JZ 개요
A programmable delay line is a timing integrated circuit that accepts a trigger edge and produces one or more delayed versions of that edge. It belongs to the delay-line and timing-element hierarchy, alongside clock and timer integrated circuits. The SY604JZ is useful where deterministic edge alignment, calibration, pulse-position adjustment, or synchronous timing compensation is required rather than ordinary frequency generation.
The device provides one independent delay path with 255 selectable taps. Verified listings identify a 4 ns delay to the first tap, an available total-delay range of 4 ns to 40 ns, and a tap increment of approximately 15.7 ps. Its differential trigger arrangement can support systems that need controlled edge-to-edge timing, while the 125 MHz retrigger capability addresses high-rate repeated triggering.
The SY604JZ is identified in the verified data as a lead-free surface-mount component supplied in a 28-pin PLCC/J-lead package. The operating voltage is listed as 4.2 V to 5.7 V. These details make the device most suitable for 5 V-class digital timing systems, provided the host circuit observes the supply limits and uses the correct package footprint.
Typical timing applications include digital test equipment, pulse-position calibration, clock-skew compensation, phase alignment, synchronization networks, and embedded timing-generation circuits. The 15 ps resolution can be valuable when fine edge placement is more important than simple propagation delay. Engineers should verify output timing over the complete temperature and supply range using the manufacturer datasheet before treating nominal resolution as a guaranteed system accuracy.
For PCB implementation, preserve the J-lead land pattern, route the differential trigger pair as a matched pair, and keep the delay-line supply and return planes low-impedance. Treat the delay path as a timing-sensitive structure: uncontrolled loading, long stubs, or mismatched routing can disturb intended edge timing. The available distributor records are the basis for the commercial and source links listed here; detailed application guidance should be checked against the official Microchip datasheet.
드롭인 대체품: SY604JZ — 동일 패키지, 핀 호환. PCB 재작업이 필요한 다른 패키지 부품은 제외됩니다.
이 제품에는 사용 가능한 드롭인 대체품이 없습니다.
대체품 요청SY604JZ 사양
| Product Type | Programmable delay line IC |
| Number of Taps | 255 taps |
| Total Delay Range | 4 ns to 40 ns |
| Delay to First Tap | 4 ns |
| Tap Increment | 15.7 ps approximately |
| Retrigger Rate | 125 MHz |
| Independent Delay Paths | 1 |
| Trigger Inputs | Differential trigger inputs |
| 공급 전압 | 4.2 V to 5.7 V |
| 패키지 | 28-LCC (J-Lead) / 28-pin PLCC |
| 실장 유형 | Surface mount |
| Packaging | Tube |
| Lead-Free Status | Lead-free |
| Timing Accuracy | Less than +/-1 LSB timing accuracy |
SY604JZ 28-lcc (j-lead) / 28-pin plcc 핀 구성 가이드
SY604JZ(28-lcc (j-lead) / 28-pin plcc 패키지)의 핀 구성입니다. 핀 번호, 기능, 연결 다이어그램은 제조사 데이터시트에 정의되어 있습니다. 정확한 풋프린트와 솔더링 지침은 해당 문서를 참조하십시오.
다음에 대한 상세 핀아웃 데이터 없음: SY604JZ.
다음을 참조하십시오: 데이터시트 전체 핀 구성은 다음을 참조하십시오.
일반적인 애플리케이션
SY604JZ 적합 용도: 8 애플리케이션s: Digital Test and Measurement Timing, Clock Phase Alignment, Pulse-Position Adjustment, Synchronous Digital Systems, Instrumentation Trigger Alignment, Clock-to-Data Calibration, Embedded Timing Compensation, RF and Communications Timing.
Digital Test and Measurement Timing
The SY604JZ fits digital timing instrumentation where a calibrated trigger path must place an edge at a repeatable position. Its 255 taps and verified 4 ns to 40 ns range provide coarse range, while approximately 15 ps resolution supports fine alignment. Use the device between a trigger source and a measurement or comparison channel, then characterize the complete chain with the intended load and supply. The benefit is adjustable delay without redesigning the timing path; the tradeoff is that actual accuracy still depends on routing, temperature, and trigger slew.
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Clock Phase Alignment
The SY604JZ is useful for phase alignment between clock domains or between a reference clock and a delayed copy. A trigger edge can be delayed through the 255-tap programmable path, allowing a controller to compensate for fixed board and cable skew. The verified 125 MHz retrigger rate supports repeated timing events, while the 4 ns to 40 ns range covers a useful calibration span. In implementation, keep trigger routing symmetric and measure the output against the destination clock rather than relying on nominal tap delay alone.
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Pulse-Position Adjustment
The SY604JZ can provide a controlled delay for pulse-position adjustment in synchronization, calibration, and pulse-forming systems. Its single independent delay path and programmable taps make it more specialized than a general delay buffer. Use the differential trigger input arrangement as intended and observe the verified 4.2 V to 5.7 V supply range. The main engineering benefit is fine, digitally selectable edge placement; the main limitation is that the useful accuracy must be established across operating conditions and the complete output load.
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Synchronous Digital Systems
The SY604JZ can support synchronous digital systems that need a deterministic delayed copy of a trigger or clock edge. Its 255 taps and wide verified delay span make it suitable for compensating fixed interconnect or pipeline timing, while differential trigger inputs fit systems designed for controlled edge initiation. Place the delay line close to the receiving timing domain when possible, maintain a continuous return path, and avoid adding uncontrolled fanout. Compared with a passive trace-delay workaround, the device allows calibration after fabrication and assembly.
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Instrumentation Trigger Alignment
The SY604JZ is a practical choice for instrumentation systems that must align a trigger to an acquisition, pulse, or calibration event. The verified 4 ns minimum-to-40 ns maximum range permits a useful adjustment band, and the approximately 15 ps tap increment supports fine positioning. Use it as a controlled delay element rather than as a general logic buffer, and calibrate the final edge position with the connected front end. Supply noise and trigger slew can affect the apparent delay even when the nominal tap step remains unchanged.
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Clock-to-Data Calibration
The SY604JZ can be used to calibrate the relative arrival time of a clock edge and a data-related trigger in a mixed-signal or high-speed digital test setup. Its programmable delay allows a controller to compensate for fixture, cable, and board delays without changing the source timing. The verified 255 taps and 15 ps-class resolution support fine trim, but the calibration must include the actual receiver, cable, and termination. Keep the trigger pair controlled and place the delay line where the intended timing reference is defined.
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Embedded Timing Compensation
The SY604JZ can compensate repeatable timing offsets in embedded instrumentation and synchronization circuits. Because it offers one independently adjustable delay path, it can sit between a system-generated trigger and a downstream counter, converter, or synchronizer. The verified 125 MHz retrigger rate is useful when timing events recur quickly, while the 4 ns to 40 ns span supports calibration travel. Use the control interface and timing limits from the datasheet, and avoid assuming that a nominal 15 ps tap increment equals guaranteed absolute accuracy.
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RF and Communications Timing
The SY604JZ may be used in RF and communications test paths where a trigger must be aligned with a modulation, conversion, or measurement event. The part is not a radio-frequency signal generator; its role is to place a timing edge precisely within a controlled test sequence. The differential trigger inputs and 4 ns to 40 ns delay span can support repeatable synchronization between instruments. Keep the delay-line path isolated from high-energy RF paths and verify that the trigger amplitude, load, and supply conditions satisfy the device specifications.
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추천 제품 요약
엔지니어링 참조 데이터: SY604JZ — 비교, 설계 지침 및 규정 준수 정보.
선택 가이드
주요 차별점
- High tap count in a dedicated delay-line IC (vs A generic fixed-delay buffer)
- Fine nominal timing granularity (vs A conventional logic buffer)
- Differential trigger architecture (vs A single-ended delay buffer)
- 125 MHz retrigger capability (vs A low-frequency one-shot delay element)
설계 노트
Treat the SY604JZ as a timing-sensitive signal path. Route the differential trigger pair as a matched pair, minimize discontinuities and stubs, and keep the delay-line output load within the manufacturer limits. The verified approximately 15 ps tap increment is a nominal control increment; edge slewing, loading, supply noise, and route length can all affect the observed edge position. Validate the final timing with the actual receiver and termination rather than with an unloaded bench probe alone.
Use the official Microchip 28-LCC J-lead land pattern and verify pin numbering against the current datasheet before fabrication. The supplied verified data does not provide the complete pin map, so do not infer a pinout from the package name. Place local supply decoupling at the device according to the manufacturer's recommended layout and provide a continuous ground return. For timing accuracy, avoid routing the delay path through test pads or long branch loads unless their effects are included in calibration.
Operate the SY604JZ within its verified 4.2 V to 5.7 V supply range and check trigger amplitude and slew against the manufacturer limits. Keep the 5 V rail low-impedance and isolate the timing device from switching-node noise where practical. If a nearby converter is used, include its ripple and switching transients in system timing tests rather than assuming a nominal 5 V rail is sufficient for predictable delay behavior.
Do not treat the 125 MHz retrigger rate as a guaranteed output clock frequency or use the part as a general-purpose logic buffer. The verified delay range, tap count, and package must all be preserved when planning a replacement or redesign. Because the exact package drawing and timing definitions were not supplied in the verified data, obtain the official Microchip datasheet before selecting pull-ups, control levels, output loading, or PCB dimensions.
규정 준수 정보
The verified distributor description identifies SY604JZ as lead-free. RoHS, REACH, AEC-Q100, halogen-free, and conflict-minerals status were not supplied and therefore remain unknown.
