SY87700VZC - 175Mbps AnyRate CDR | Microchip Technology
MPN： SY87700VZC ✓ 啟用中SY87700VZC 概覽
A clock and data recovery IC is a timing IC that extracts a coherent clock from a serial data stream and reconstructs data whose timing has degraded due to noise, jitter, or transmission losses. CDR devices belong to the clock and timing IC hierarchy and ultimately support synchronization in networking, optical transport, and digital communications systems. The SY87700VZC is an application-specific timing solution rather than a general-purpose fixed-frequency oscillator.
The verified operating envelope includes data rates from 32 Mbps to 175 Mbps and operation from a 3.3 V or 5 V supply. Its AnyRate architecture supports a broad range of line rates, making it useful when one board design must accommodate multiple standardized transmission rates. The recovered clock and data outputs reduce the external circuitry needed to implement a compliant telecom or network interface.
The SY87700VZC includes a phase-locked loop, as identified in the published specification data, and provides one recovered output. It is intended for SONET/SDH, ATM, and Ethernet systems where incoming serial data must be clocked and recovered before downstream processing. Input signaling is identified as PECL, which requires appropriate interface termination and level translation where the surrounding system uses another logic family.
Typical deployments include SONET/SDH line cards, ATM switching equipment, optical transport modules, Ethernet backplane links, and telecommunications aggregation systems. A design can place the CDR between a high-speed serial receiver and the system's parallel processing or forwarding circuitry. Its 175 Mbps maximum rate supports legacy and intermediate-rate telecom links while its 28-pin SOIC package simplifies assembly on conventional surface-mount boards.
The primary design consideration is verifying the complete signal environment. Board designers must accommodate the device's PECL input interface, provide suitable termination, maintain controlled routing for high-speed signals, and observe all supply and decoupling requirements in the manufacturer datasheet. Because the verified search data does not provide the complete electrical table or pin assignment, engineers should confirm those details before schematic capture or layout release.
This page consolidates the verified distributor inventory information, AnyRate operating range, package details, and same-package family references into an engineering-focused comparison. It also distinguishes confirmed specifications from values that still require direct confirmation from the manufacturer datasheet.
直接替換替代品，適用於 SY87700VZC — 相同封裝，腳位對腳位相容。需重新設計 PCB 的不同封裝零件不列入。
SY87700ALZG-TR
✅ 直接替換📋 參考替代品（不在目錄中）
SY87700LZG
✅ 直接替換📋 參考替代品（不在目錄中）
SY87700VZC 規格
| Product Type | Clock and Data Recovery IC with multiplexer |
| AnyRate Data Rate Range | 32 Mbps to 175 Mbps |
| Maximum Data Rate | 175 Mbps |
| Supply Voltage Options | 3.3 V or 5 V |
| Input Signal Type | PECL |
| Output Count | 1 output |
| PLL | Yes |
| Primary Applications | Ethernet, SONET/SDH, and ATM equipment |
| 封裝 | 28-pin SOIC |
| Package Width | 7.50 mm |
| Package Body Length | 0.295 inch |
| 安裝類型 | Surface Mount |
| Maximum Supply Voltage | 3.45 V from family comparison data |
| Minimum Supply Voltage | 3.15 V from family comparison data |
SY87700VZC 0.295 inch 腳位配置指南
SY87700VZC（0.295 inch 封裝）的腳位配置。 腳位編號、功能與連接圖定義於製造商資料手冊中。請參閱該手冊以取得確切的封裝尺寸與焊接指引。
無詳細腳位定義資料： SY87700VZC.
請參閱 資料表 以查看完整腳位配置。
典型應用
SY87700VZC 適用於 6 應用s: SONET and SDH Line Cards, ATM Switching Equipment, Ethernet Backplane Interfaces, Optical Transport Modules, Telecommunications Aggregation Systems, Industrial Network Gateways.
SONET and SDH Line Cards
The SY87700VZC fits SONET/SDH line-card receive paths that operate between 32 Mbps and 175 Mbps and require recovered timing from a degraded serial stream. Its 175 Mbps maximum rate, PECL input, PLL capability, and one recovered output place it between the high-speed receive stage and downstream digital logic. The 28-pin SOIC package also provides a conventional surface-mount implementation for multilayer telecom boards. A complete design must still verify protocol-specific jitter tolerance, latency, reference requirements, termination, and pin assignments against the manufacturer datasheet.
推薦
ATM Switching Equipment
ATM network interfaces benefit from a dedicated device that can recover both clock and data from a 32 Mbps to 175 Mbps serial stream. The SY87700VZC provides this recovery function with PECL input, an integrated PLL, and one output, allowing recovered timing and data to feed the switch fabric or forwarding logic. Its AnyRate positioning provides useful flexibility across supported ATM and related network rates. Before schematic approval, engineers should confirm the required line rate, clock topology, bypass behavior, and whether the PECL interface matches the selected optical or copper transceiver.
推薦
Ethernet Backplane Interfaces
The SY87700VZC can support legacy or intermediate-rate Ethernet links that fall within its confirmed 32 Mbps to 175 Mbps operating range. It receives a PECL-based serial signal and recovers the associated clock and data, reducing the burden on downstream timing recovery circuitry. The single recovered output and 28-pin SOIC format are suitable for compact network-interface sections on multilayer boards. Integration requires careful high-speed routing, suitable logic-level interfacing, verified termination, and confirmation that the selected Ethernet rate remains inside the complete electrical-characteristics specification.
推薦
Optical Transport Modules
Optical transport modules can use the SY87700VZC when a recovered 32 Mbps to 175 Mbps serial stream must be converted into a stable clock and data pair for a framer, mapper, or packet-processing block. Its PECL input is convenient for high-speed optical-link environments, while the PLL and recovered output support synchronization after the optical receiver. The 28-pin SOIC package permits assembly without a fine-pitch BGA, although high-speed signal integrity remains critical. Designers should verify input sensitivity, jitter requirements, reference configuration, and exact output timing in the manufacturer documentation.
推薦
Telecommunications Aggregation Systems
Aggregation equipment handling multiple legacy transport rates can benefit from the SY87700VZC's AnyRate range of 32 Mbps to 175 Mbps. Instead of relying on a fixed-frequency recovery circuit, the design can use one device family across supported line rates while maintaining a consistent 28-pin SOIC layout. The one-output architecture and PLL support clock recovery within telecom interface cards. The practical benefit is reduced board-family variation, but engineers must validate protocol-specific margins, synchronization behavior, supply sequencing, and temperature limits for each deployed rate.
推薦
Industrial Network Gateways
Industrial gateways can use the SY87700VZC to recover clock and data from supported serial network links before passing information to an FPGA, microcontroller, or network processor. Its confirmed 32 Mbps to 175 Mbps range, PECL input, and single recovered output suit interface blocks operating below the device maximum. The SOIC-28 package is straightforward to inspect, assemble, and support with conventional test access. Production implementation still requires an exact pinout, timing-budget analysis, EMC-aware layout, and verification that the industrial environmental requirements fall within the part's unverified temperature specification.
推薦
推薦產品摘要
工程參考資料，適用於 SY87700VZC — 比較、設計指引及合規資訊。
選型指南
與替代品比較
| 參數 | 本產品 | SY87700ALZG-TR | SY87700LZG |
|---|---|---|---|
| Brand | Microchip Technology | Microchip Technology | Microchip Technology |
| Package | 28-SOIC, 7.50 mm width | 28-SOIC, same package | 28-SOIC, same package |
| Product Type | AnyRate clock and data recovery IC with multiplexer | SY87700 CDR family | SY87700 CDR family |
| Minimum Data Rate | 32 Mbps | 32 Mbps | 32 Mbps |
| Maximum Data Rate | 175 Mbps | 175 Mbps | 175 Mbps |
| Supply Voltage | 3.3 V or 5 V | 3.3 V or 5 V | 3.3 V or 5 V |
| Primary Applications | Ethernet, SONET/SDH, and ATM | SONET/SDH/ATM | SONET/SDH/ATM |
主要差異化特點
- Confirmed maximum operating data rate (對比SY87700ALZG-TR)
- Same-package AnyRate family alignment (對比SY87700LZG)
- Documented network transport positioning (對比SY87700ALZG-TR)
設計說明
Route the PECL input and recovered high-speed outputs as controlled-impedance nets, with the exact topology and reference plane confirmed from the manufacturer datasheet. Keep the input path short, minimize stubs, provide access for high-speed probing, and keep return paths continuous. Because the supplied evidence does not include the complete pin table or recommended layout, these constraints are preliminary and must be reconciled with the official application guidance before release.
Provide a low-impedance 3.3 V or 5 V supply with local high-frequency decoupling placed close to the device's supply and ground pins. Follow the manufacturer-prescribed capacitor values, voltage tolerances, and reference or crystal requirements rather than substituting generic network values. Validate startup, supply sensitivity, and clock jitter on hardware because the supplied search excerpt omits the complete electrical-characteristics table and application circuit.
Treat clock, data, and PECL connections as high-speed interfaces rather than ordinary digital signals. Use suitable terminations derived from the actual input and output configuration, maintain consistent impedance through connectors and package transitions, and confirm eye opening and jitter with representative test equipment. The AnyRate operation range of 32 Mbps to 175 Mbps does not by itself guarantee compliance with a specific SONET, SDH, ATM, or Ethernet mask.
Do not treat a shared package and shared family description as proof of a drop-in replacement. Before substituting SY87700ALZG-TR or SY87700LZG, compare every pin, temperature grade, ordering suffix, packing method, production status, and electrical limit. Also do not infer pricing or a firm lead time from the captured pages, because the verified results contain inventory statements and quotation links but no complete price table.
合規資訊
The supplied verified results do not contain explicit RoHS, REACH, AEC-Q100, lead-free, halogen-free, or conflict-minerals statements. These fields remain unknown rather than being inferred from the distributor listings.