SY604JC-TR - 255-Tap 4ns-40ns Delay Line | Microchip
Teilenummer: SY604JC-TR ✗ AbgekündigtSY604JC-TR Übersicht
A delay line is a timing IC that creates a controlled propagation delay between an input edge and an available output tap. It belongs to the broader integrated-circuit hierarchy as a clock-and-timing IC, a timing-control IC, and ultimately a semiconductor. Programmable delay lines are useful when a system requires calibration, edge-position adjustment, phase alignment, or a selectable delay without redesigning the physical layout.
The SY604JC-TR offers 255 selectable taps, differential TRIGGER inputs, and timing accuracy described as less than ±1 LSB. Its total programmable span is 4ns to 40ns, while the 15.7ps increment permits fine delay resolution. Compatibility with 10KH ECL logic supports use in high-speed timing environments, and typical power dissipation is listed as 350mW.
Technically, the device combines a retriggerable delay path with a tap-selection mechanism so a system can choose among 255 delay positions. The 125MHz retrigger rate means the delay element can be triggered again at high repetition rates, which is relevant in pulse-generation, synchronization, and instrumentation systems. The trigger arrangement provides two inputs for differential triggering, helping reduce sensitivity to common-mode input effects when the circuit requires repeatable edge detection.
Typical applications include pulse-width calibration, digital timing alignment, phase-shift generation, clock distribution and synchronization, automated test equipment, and laboratory instrumentation. The 4ns-to-40ns span is especially useful for fine timing adjustment in systems operating at sub-nanosecond resolution.
The principal design consideration is that a delay-line IC is not interchangeable with a fixed-delay trace or passive delay network. The PCB must route the differential trigger signals and output taps with controlled impedance, and the power supply must meet the documented 4.2V-to-5.7V range. Designers should also account for 350mW typical power dissipation when placing the 28-LCC package near thermally sensitive circuitry.
This product page combines verified distributor specifications, practical timing-engineering guidance, and a structured comparison framework. It separates documented performance from unavailable information and helps engineers evaluate the SY604JC-TR for precision delay, calibration, and synchronization designs.
Drop-in-Alternativen für SY604JC-TR – gleiches Gehäuse, Pin-kompatibel. Bauteile mit anderem Gehäuse, die eine PCB-Überarbeitung erfordern, sind ausgeschlossen.
Varianten dieser Serie
Modelle derselben Serie, die drop-in-kompatibel sind mit SY604JC-TR (gleiche Bauform und Footprint) – abweichend in Logic Compatibility, Package, Product Type, Retrigger Rate, Typical Power Dissipation.
SY604JC
✅ Drop-InPreis auf Anfrage
Datenblatt ansehen →SY604JC-TR Technische Daten
| Product Type | Programmable delay line IC |
| Number of Taps/Steps | 255 taps |
| Number of Independent Delays | 1 |
| Available Total Delays | 4ns to 40ns |
| Delay to First Tap | 4ns |
| Tap Increment | 15.7ps |
| Delay Resolution | 15ps |
| Timing Accuracy | Less than ±1 LSB |
| Retrigger Rate | 125MHz |
| Trigger Input Type | Differential TRIGGER inputs |
| Logic Compatibility | 10KH ECL logic |
| Supply Voltage Range | 4.2V to 5.7V |
| Betriebstemperaturbereich | 0°C to 85°C |
| Typical Power Dissipation | 350mW |
| Gehäuse | 28-LCC (J-Lead) |
| Montageart | Surface mount |
| Shipping Package | Tape & Reel (TR) |
SY604JC-TR tape & reel (tr) Pinbelegungsleitfaden
Pinbelegung für SY604JC-TR (tape & reel (tr)-Gehäuse). Pin-Nummerierung, Funktionen und Anschlussdiagramme sind im Herstellerdatenblatt definiert. Entnehmen Sie diesem den genauen Footprint und Lötrichtlinien.
Keine detaillierten Pinbelegungsdaten verfügbar für SY604JC-TR.
Siehe die Datenblatt für die vollständige Pin-Konfiguration.
Typische Anwendungen
SY604JC-TR ist geeignet für 6 Anwendungs: Pulse-Width Calibration, Clock Synchronization and Phase Alignment, Instrumentation and Automated Test Equipment, Digital Delay Compensation, High-Speed Pulse Generation, Phase-Shift and Edge-Positioning Circuits.
Pulse-Width Calibration
The SY604JC-TR fits pulse-width calibration because its 255 taps cover a 4ns-to-40ns delay span with a 15.7ps increment. A calibration controller can select a tap, compare the delayed edge with a reference, and correct the measured pulse width without changing the physical delay path. Differential TRIGGER inputs support repeatable edge detection, while timing accuracy of less than ±1 LSB helps limit quantization error. The 125MHz retrigger rate also permits repeated updates in high-speed test sequences. Actual system accuracy remains dependent on comparator offset, receiver threshold behavior, clock accuracy, and the calibration algorithm; these effects must be characterized separately from the delay line's tap resolution.
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Clock Synchronization and Phase Alignment
The SY604JC-TR can align a system clock by adjusting the delay between a trigger edge and an available output tap. Its 255 selectable positions and 15.7ps increment provide fine phase positioning over a total range of 4ns to 40ns. The differential TRIGGER inputs are useful when the source must reject common-mode noise, and the 125MHz retrigger rate supports repetitive clock-recovery operations. The device does not generate a clock by itself; it delays an existing edge. Therefore, loop filtering, output-driver matching, and compensation for board skew remain necessary in a practical synchronization circuit.
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Instrumentation and Automated Test Equipment
The SY604JC-TR is useful in instrumentation and automated test equipment when adjustable timing is required for stimulus alignment or sampling-window placement. Its 4ns-to-40ns range and 15.7ps tap increment allow a controller to position an edge around a critical measurement boundary, while 255 taps provide practical calibration granularity. The differential trigger interface can simplify connection to complementary source drivers. Because the device is obsolete, a new instrument design should also evaluate supply availability, long-term maintenance, and any redesign required around a current timing component rather than treating the obsolete status as merely a purchasing inconvenience.
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Digital Delay Compensation
The SY604JC-TR can compensate for fixed propagation delay in a digital timing path by adding a controlled, selectable delay. Its 255 taps permit compensation across 4ns to 40ns, making it applicable to receiver, comparator, or logic-chain timing skew. The 15.7ps increment provides more resolution than a coarse delay element, and the less-than-±1-LSB timing-accuracy statement supports fine calibration. Board-level delays still vary with temperature, supply, and routing, so a production design should verify the delay across its full operating range and preserve a mechanism for trimming the selected tap.
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High-Speed Pulse Generation
The SY604JC-TR can serve as the adjustable timing element in a high-speed pulse-generation path where trigger events require programmable latency. Its true 125MHz retrigger rate allows repeated trigger operations at high repetition rates, while differential TRIGGER inputs support rapid edge detection. The delay window from 4ns to 40ns lets the system place output transitions relative to trigger events without redesigning fixed delay networks. Designers should account for the documented 350mW typical power dissipation and ensure the 4.2V-to-5.7V supply remains within specification under high trigger repetition rates.
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Phase-Shift and Edge-Positioning Circuits
The SY604JC-TR supports phase-shift and edge-positioning circuits by offering 255 independently selectable delay taps in a 4ns-to-40ns range. A digital controller can alter the relative position of a delayed edge in 15.7ps increments, enabling fine timing adjustment in sampling, correlation, and delay-compensation circuits. Differential triggering helps define the edge-reference event, while the 125MHz retrigger rate supports repetitive operation. The IC adjusts timing rather than logic level or frequency, so downstream receivers, output terminations, and clock distribution must still meet the signal-integrity requirements of the complete system.
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Zusammenfassung der empfohlenen Produkte
Technische Referenzdaten für SY604JC-TR – Vergleich, Designhinweise und Compliance-Informationen.
Auswahlhilfe
Vergleich mit Alternativen
| Parameter | Dieses Produkt | SY604JC |
|---|---|---|
| Brand | Microchip Technology | Microchip Technology |
| Package | 28-LCC (J-Lead) | 28-LCC (J-Lead) |
| Number of Taps/Steps | 255 taps | 255 taps |
| Available Total Delays | 4ns to 40ns | 4ns to 40ns |
| Delay to First Tap | 4ns | 4ns |
| Tap Increment | 15.7ps | 15.7ps |
| Retrigger Rate | 125MHz | 125MHz |
| Supply Voltage Range | 4.2V to 5.7V | 4.2V to 5.7V |
| Operating Temperature Range | 0°C to 85°C | 0°C to 85°C |
| Typical Power Dissipation | 350mW | 350mW |
| Lifecycle Status | Obsolete; discontinued at DigiKey | Obsolete; discontinued at DigiKey |
Wichtigste Unterscheidungsmerkmale
- Fine programmable timing resolution (vs. SY604JC)
- Wide selectable delay range (vs. SY604JC)
- High retrigger capability (vs. SY604JC)
Designhinweise
Route the two TRIGGER inputs as a controlled-impedance differential pair and terminate them according to the manufacturer's recommended ECL interface. Keep the SY604JC-TR away from unrelated switching nodes because even a 15.7ps tap increment leaves little margin for uncontrolled edge skew. Validate timing at the receiving device rather than relying only on the nominal tap value, since package, connector, and trace delays are added to the selected internal delay.
Place the SY604JC-TR close to the trigger source and destination circuitry to minimize uncontrolled trace delay. Provide a continuous ground reference beneath the 28-LCC J-lead package and follow the manufacturer layout guidance for bypass capacitors and output routing. Because the device supports differential triggering and 10KH ECL logic, its supply and interface networks should be planned with the same short-path discipline used for high-speed ECL circuits.
The verified datasheet listing specifies 350mW typical power dissipation. Use that figure as the starting operating condition and confirm worst-case dissipation from the manufacturer datasheet before defining copper area or airflow. Keep the J-lead package separated from temperature-sensitive analog and timing circuits. No verified junction-temperature limit or package thermal resistance was supplied, so a final thermal margin calculation requires those datasheet values.
Do not interpret the 15.7ps tap increment as guaranteed end-to-end system accuracy. Comparator threshold offsets, receiver jitter, propagation-delay variation, and calibration quantization can dominate the useful resolution. Also avoid confusing SY604JC with SY604JC-TR as different electrical devices: the verified evidence supports the same core function and package, while TR specifically denotes tape-and-reel presentation.
Compliance-Informationen
The supplied verified sources do not state RoHS, REACH, AEC-Q100, lead-free, halogen-free, or conflict-minerals compliance. The part is an obsolete commercial timing IC; no automotive qualification was provided.