SY69952ZC - 155.52Mbps Clock Recovery IC | Microchip
MPN: SY69952ZC ✗ Tapus ng BuhaySY69952ZC Ulas
A clock-recovering transceiver is a clock-and-timing semiconductor that accepts high-speed serial data, recovers timing from the incoming signal, and supports transmission and reception within optical or network transport systems. In the broader hierarchy, it belongs to clock and timing ICs, interface ICs, and semiconductor signal-path components. Its primary value is integrating functions that otherwise require separate transmitter, receiver, and clock-recovery circuitry.
The verified features include complete ATM-compatible single-chip transmitter and receiver integration, operation at 155.52 Mbps, one recovered-clock output, and compatibility with named ATM processor platforms. The available documentation also indicates seamless operation with PM5345, VNS67200, WAC-013-B/WAC-413-A, and NEC µPD98402 UNI processors. Electrical ratings, supply voltage, recovery thresholds, jitter performance, operating temperature, and package dimensions were not supplied in the retrieved data and therefore must be confirmed from the original manufacturer datasheet.
SY69952ZC is suited to ATM and SONET/SDH equipment, OC-3/STS-3 line-interface assemblies, optical transport modules, network processor interfaces, and legacy synchronous multiplexing systems. Its 28-SOIC construction favors conventional surface-mount assembly, but high-speed signal integrity still depends on controlled impedance routing, solid return paths, and careful power-supply decoupling. The device should be evaluated against the original datasheet and processor-interface requirements before use in a new design.
A key design consideration is that this is a legacy OC-3/STS-3 clock-recovery device rather than a general-purpose Ethernet PHY. Verify signal rates, logic levels, recovered-clock jitter, reference-clock requirements, and processor timing before replacing it with any modern interface. Lifecycle status and a documented drop-in replacement could not be established from the supplied results. This page consolidates the verified source links, procurement data availability, application context, and unresolved engineering information without inventing missing specifications.
Mga alternatibo na pwedeng ilagay na SY69952ZC — parehas na package, pin-to-pin na katugmang. Hindi kasama ang mga bahagi ng iba't-ibang package na nangangailangan ng pagpapaayos ng PCB.
Variante sa Seri na ito
Katulad na modelo sa serye na katugma sa pagpasok SY69952ZC (parehas na form factor at footprint) — pagkakaiba sa Package.
Wala ng magagamit na drop-in alternatibo para sa produkto na ito.
Hilingin ang AlternatiboSY69952ZC Mga Spesipikasyon
| Product Type | OC-3/STS-3 clock-recovering transceiver |
| Rate ng Data | 155.52 Mbps |
| Clock Output Count | 1 output |
| Supported Lower Rate | 51.84 Mbit/s |
| Architecture | ATM-compatible single-chip transmitter and receiver |
| Application | Ethernet, SONET/SDH, and ATM applications |
| Packhaging | 28-SOIC |
| Bilang ng Pin | 28 pins |
| Uri ng Pagpapasok | Surface mount |
| Processor Compatibility | PM5345, VNS67200, WAC-013-B/WAC-413-A, and NEC µPD98402 UNI processors |
Gabay sa Pin Configuration ng SY69952ZC 28-soic
Pin configuration para sa SY69952ZC (28-soic package). Ang pagnunumero ng pin, mga function, at connection diagram ay tinukoy sa datasheet ng manufacturer. Sumangguni dito para sa eksaktong footprint at mga alituntunin sa soldering.
Wala ng detalyadong pinout data na magagamit para sa SY69952ZC.
Sumangguni sa datasheet para sa buong pin configuration.
Tipikal na mga Gamit
SY69952ZC ay nararapat para sa 8 aplikasyons: OC-3/STS-3 Line Interfaces, ATM Network Processor Interfaces, SONET/SDH Transport Equipment, Legacy ATM Access Concentrators, Optical Transport Module Controllers, Network Processor Timing Cards, Test and Measurement Interfaces, Legacy Equipment Spare Parts.
OC-3/STS-3 Line Interfaces
The SY69952ZC fits a legacy 155.52 Mbps OC-3/STS-3 line-interface design because it combines clock recovery with transmitter and receiver functions in one 28-SOIC device. It can reduce the number of separate timing blocks around an ATM-compatible network processor. Engineering verification must confirm supply voltage, logic levels, recovery limits, jitter, and termination values from the manufacturer datasheet before layout release. Controlled-impedance routing and a continuous ground plane are particularly important at this data rate, while bypass components should be placed close to the device supply pins.
Inirekomenda
ATM Network Processor Interfaces
The SY69952ZC is intended for ATM-oriented processor interfaces supporting 155.52 Mbps clock and data recovery. Verified family information names PM5345, VNS67200, WAC-013-B/WAC-413-A, and NEC µPD98402 UNI processors as compatible platforms. When designing around one of these devices, verify clock source selection, serial-data timing, pin levels, reset behavior, and board-level termination against both datasheets. The integrated transmitter and receiver can simplify legacy line-card architecture, but complete electrical specifications must come from the original manufacturer documentation.
Inirekomenda
SONET/SDH Transport Equipment
The SY69952ZC can support a legacy OC-3/STS-3 section of SONET/SDH transport equipment because its verified description identifies 155.52 Mbps clock and data recovery for this application class. It is most appropriate for equipment that already matches the device's OC-3 framing and processor interface rather than for unrestricted new transport architectures. Designers should confirm receive sensitivity, clock jitter, reference requirements, and loss-of-signal behavior from the datasheet. High-speed traces require controlled impedance and minimized stub lengths.
Inirekomenda
Legacy ATM Access Concentrators
For a legacy ATM access-concentrator design, the SY69952ZC offers an integrated OC-3/STS-3 transmitter, receiver, and clock-recovery path at 155.52 Mbps. This consolidation can reduce board partitioning compared with a design built from discrete clock-recovery and interface blocks. The decisive checks are processor timing compatibility, I/O voltage compatibility, clock architecture, and thermal performance at the system level. Prototype and compliance testing should be completed against the exact OC-3 requirements of the target network before production release.
Inirekomenda
Optical Transport Module Controllers
The SY69952ZC is relevant to legacy optical transport modules that terminate 155.52 Mbps OC-3/STS-3 streams and need deterministic clock recovery. Its integrated single-chip architecture can serve the interface between serialized line data and an ATM-compatible processor. Optical-module designs must additionally coordinate transmitter and optical-device timing, monitor loss-of-signal behavior, and ensure that recovered-clock jitter meets the optical interface budget. The retrieved data does not state those electrical limits, so engineers must obtain the manufacturer datasheet rather than infer them.
Inirekomenda
Network Processor Timing Cards
The SY69952ZC can be evaluated for a legacy network-processor timing card requiring 155.52 Mbps clock and data recovery with one recovered-clock output. Its documented compatibility with several ATM processor platforms makes it more relevant than a generic serializer for boards built around those processors. Design review should compare edge timing, input threshold, output jitter, reference-clock needs, and supply sequencing across both component datasheets. Maintain controlled trace geometry and avoid routing high-speed signals across plane splits.
Inirekomenda
Test and Measurement Interfaces
A legacy telecom test set or line-interface fixture may use the SY69952ZC to exercise OC-3/STS-3 clock-and-data-recovery behavior at 155.52 Mbps. Its integrated transmitter and receiver can create a compact source-and-receive path for processor-interface testing. Instrument designers must account for the unreported supply voltage, jitter, recovery thresholds, and temperature limits. Probe access should preserve signal integrity, use controlled references, and avoid adding long test-point stubs to high-speed nets. Production use also requires confirmed component sourcing.
Inirekomenda
Legacy Equipment Spare Parts
The SY69952ZC is most defensible as a maintenance or spare part for equipment whose original bill of materials specifies this exact MPN. Reproduction of an installed clock-recovery path reduces the risk associated with an undocumented substitute, particularly when processor timing and board layout are already fixed. Before purchasing, compare the replacement's marking, package, pinout, date code requirements, and operating-temperature grade with the failed component. Distributor stock and condition should be confirmed as of the quotation date.
Inirekomenda
Buod ng mga Inirekomendang Produkto
Impormasyon ng Talumpati sa Engineering for SY69952ZC — ikabit, gabay sa disenyo, at impormasyon ng pagsunod sa kautusan.
Paunawang Hanapin
Ikabit sa Mga Alternatibo
| Parametro | Ito ang Producto |
|---|---|
| Brand | Microchip Technology |
| Package | 28-SOIC |
| Data Rate | 155.52 Mbps |
| Clock Output Count | 1 output |
| Architecture | ATM-compatible single-chip transmitter and receiver |
| Primary Application | Ethernet, SONET/SDH, and ATM applications |
| Documented Compatibility | PM5345, VNS67200, WAC-013-B/WAC-413-A, and NEC µPD98402 UNI processors |
| Ordering Variants | SY69952ZC; SY69952ZC-TR tape-and-reel ordering page identified |
Pangunahing mga Pagkakaiba
- Integrated OC-3/STS-3 clock-and-data-recovery function (kumpara saDiscrete transmitter, receiver, and clock-recovery implementation)
- Documented processor-platform interoperability (kumpara saUnspecified generic clock-recovery IC)
- Single recovered-clock output at the legacy transport rate (kumpara saMulti-output modern timing architecture)
Talaan ng Disenyo
At 155.52 Mbps, route serial data and recovered-clock signals over controlled-impedance traces with a continuous reference plane and no unnecessary stubs. Keep the clock away from noisy switching nodes and use only verified terminations from the manufacturer interface circuit. The retrieved snippets do not provide rise time, jitter, threshold, or impedance values, so layout dimensions and termination must be calculated from the original datasheet rather than guessed.
Place supply bypass capacitors close to the relevant device pins and provide a low-impedance return path before tuning logic or clock behavior. Because the SY69952ZC supply voltage and current limits are absent from the verified snippets, do not select a regulator or capacitor rating from inference. Review the manufacturer power-recommendation section for voltage tolerance, sequencing, startup current, and decoupling requirements.
Do not treat SY69952ZC-TR as a different replacement chip; the available evidence identifies it as the tape-and-reel ordering form. Likewise, generic cross-reference search tools do not prove electrical, pin, timing, or lifecycle compatibility. For maintenance work, match the exact installed MPN, package, pinout, processor interface, and documented operating conditions before approving a substitute.
Preserve the reference-design topology around the clock and data paths, especially any resistor networks, termination components, coupling capacitors, or loopback structures shown in the manufacturer documentation. Those values cannot be reconstructed from the retrieved search snippets. During PCB bring-up, monitor power rails, recovered-clock stability, and data errors before marginalizing components or changing trace geometry.
Impormasyon ng Pagsunod sa Kautusan
The supplied results do not state RoHS, REACH, AEC-Q100, lead-free, halogen-free, or conflict-minerals status. No compliance claim should be inferred from the distributor listing.
