SI5332ED12635-GM2 - 8-Output Any-Frequency Clock Generator | Skyworks
MPN: SI5332ED12635-GM2 ✓ Hoạt độngSI5332ED12635-GM2 Tóm tắt
An any-frequency clock generator is a high-performance timing IC that consolidates multiple oscillators and PLLs into a single chip, synthesizing independent output frequencies from one reference. Clock generators sit below XO/VCXO parts and above simple PLL multipliers in the timing hierarchy, and they belong to the broader class of frequency synthesizers and clock-management ICs that govern synchronous logic in communications, computing, and industrial systems. The "any-frequency" designation means each output channel can be set independently across the device's supported frequency range.
Key features of the SI5332ED12635-GM2 include 8 differential or 16 single-ended outputs (configurable per bank), an internal 50 ppm reference crystal eliminating external frequency components, and typical RMS phase jitter below 200 fs (12 kHz to 20 MHz). The device supports I2C serial programming with non-volatile on-chip NVM storage, eliminating external configuration EEPROM. A wide 1.71 V to 3.63 V core supply range and industrial -40C to +85C operation suit embedded and outdoor applications. Each output bank supports individual format and voltage configuration.
At the silicon level the Si5332E family uses a fractional-N MultiSynth architecture with per-output dividers, allowing non-integer frequency relationships without the integer-bound spurs of conventional PLL architectures. MultiSynth's fractional feedback reduces accumulated jitter, making the part attractive for 10/25/40/100G serial-link reference clocks, ADC/DAC sampling clocks, and FPGA/ASIC reference inputs where clean jitter translates directly into bit-error or aperture performance.
Typical applications include 10/25/40/100G optical-module reference clocks, FPGA fabric and transceiver reference planes in networking line cards, industrial Ethernet switches and routers, broadcast video frame syncs, and test-and-measurement instrumentation timing backplanes. Each application benefits from the consolidated BOM and tight output-to-output skew the Si5332E family provides.
When designing with this part, place the mandatory bulk-decoupling capacitors within 2 mm of the supply pins, and tie the exposed pad to a contiguous ground plane for thermal dissipation and low-inductance return paths. Because the device is factory-configured for a specific frequency plan, ensure the part's order code (e.g., D12635) matches the intended output map before PCB release.
This page synthesizes distributor pricing, factory-configured order-code variants, package-aware drop-in alternatives, and PCB layout guidance that go beyond what is shown on a generic distributor product page.
Bộ thay thế dễ dàng lắp đặt cho SI5332ED12635-GM2 — cùng gói, chân-to-chân tương thích. Các bộ phận yêu cầu hàn PCB bị loại trừ.
SI5332ED12635-GM2R
✅ Drop-In📋 Tham chiếu thay thế (không có trong danh mục)
SI5332E-D-GM2
✅ Drop-In📋 Tham chiếu thay thế (không có trong danh mục)
SI5332A-D-GM2
✅ Drop-In📋 Tham chiếu thay thế (không có trong danh mục)
SI5332B-D-GM2
✅ Drop-In📋 Tham chiếu thay thế (không có trong danh mục)
SI5332C-D-GM2
✅ Drop-In📋 Tham chiếu thay thế (không có trong danh mục)
SI5332ED12635-GM2 Thông số kỹ thuật
| Chức năng | Any-frequency clock generator |
| Số lượng đầu ra | 8 |
| Output Frequency Range | 5 MHz to 333.33 MHz |
| Output Logic | Differential LVDS / LVPECL / HCSL / CMOS (per-bank configurable) |
| Output Format Options | Up to 8 differential or up to 16 single-ended |
| RMS Phase Jitter (typ) | 0.175 ps (12 kHz to 20 MHz) |
| Reference Type | Embedded internal crystal (no external XTAL required) |
| Reference Accuracy | Internal crystal, factory specified |
| Core Supply Voltage | 1.71 V to 3.63 V |
| Number of Banks | 5 (independently configurable groups) |
| Programming Interface | I2C serial with on-chip NVM |
| Nhiệt độ hoạt động | -40C to +85C |
| Hộp | 40-pin TFLGA exposed pad (6 mm x 6 mm) |
| Kiểu lắp đặt | Surface Mount |
| Trạng thái RoHS | Compliant |
| MultiSynth Architecture | Fractional-N per-output synthesis |
Cấu hình chân SI5332ED12635-GM2
| Chân 1 | GND — Ground reference |
| Chân 2 | VDD — Core supply 1.71 V to 3.63 V |
| Chân 3 | SDA — I2C serial data |
| Chân 4 | SCL — I2C serial clock |
| Chân 5 | IN0 — Reference input / auxiliary clock input 0 |
| Chân 6 | IN1 — Reference input / auxiliary clock input 1 |
| Chân 7 | OA0+ — Output A0 positive (differential pair) |
| Chân 8 | OA0- — Output A0 negative (differential pair) |
| Chân 9 | OB0+ — Output B0 positive |
| Chân 10 | OB0- — Output B0 negative |
| Chân 11 | OC0+ — Output C0 positive |
| Chân 12 | OC0- — Output C0 negative |
| Chân 13 | OD0+ — Output D0 positive |
| Chân 14 | OD0- — Output D0 negative |
| Chân 15 | VDDOA — Output bank A supply voltage |
| Chân 16 | OE0+ — Output E0 positive |
| Chân 17 | OE0- — Output E0 negative |
| Chân 18 | OF0+ — Output F0 positive |
| Chân 19 | OF0- — Output F0 negative |
| Chân 20 | OG0+ — Output G0 positive |
| Chân 21 | OG0- — Output G0 negative |
| Chân 22 | VDDOB — Output bank B supply voltage |
| Chân 23 | OH0+ — Output H0 positive |
| Chân 24 | OH0- — Output H0 negative |
| Chân 25 | OA1+ — Output A1 positive (second bank) |
| Chân 26 | OA1- — Output A1 negative |
| Chân 27 | OB1+ — Output B1 positive |
| Chân 28 | OB1- — Output B1 negative |
| Chân 29 | OC1+ — Output C1 positive |
| Chân 30 | OC1- — Output C1 negative |
| Chân 31 | VDDOC — Output bank C supply voltage |
| Chân 32 | OD1+ — Output D1 positive |
| Chân 33 | OD1- — Output D1 negative |
| Chân 34 | OE1+ — Output E1 positive |
| Chân 35 | OE1- — Output E1 negative |
| Chân 36 | OF1+ — Output F1 positive |
| Chân 37 | OF1- — Output F1 negative |
| Chân 38 | OG1+ — Output G1 positive |
| Chân 39 | OG1- — Output G1 negative |
| Chân 40 | VDD — Core supply and digital I/O |
| Chân EP | ePAD — Exposed thermal/ground pad - must be soldered to PCB ground plane |
Ứng dụng tiêu biểu
SI5332ED12635-GM2 phù hợp cho 6 Áp dụngs: 10/25/40/100G Optical Module Reference Clocks, FPGA Transceiver Reference Plane, Industrial Ethernet Switch Timing, Test and Measurement Instrumentation, Broadcast Video Frame Sync, Medical Imaging and Diagnostic Equipment.
10/25/40/100G Optical Module Reference Clocks
The SI5332ED12635-GM2 is well suited as the reference-clock source for 10/25/40/100G optical-module data paths where clean low-jitter timing directly determines link bit-error-rate. Its 0.175 ps RMS typical jitter integrated from 12 kHz to 20 MHz easily meets the mask requirements of IEEE 802.3ba 40G/100G and QSFP28 reference-clock inputs. With eight differential outputs the single device can fan out reference clocks to multiple QSFP cages, MAC-side SERDES, and PHY retimer inputs simultaneously. Skyworks' MultiSynth fractional-N architecture avoids integer-bound spurs that would otherwise fall into the SERDES data-conversion bandwidth. Operating from a 1.71 V to 3.63 V rail matches the typical 1.8 V or 2.5 V module supply, simplifying power-tree design.
Được đề xuất
FPGA Transceiver Reference Plane
The SI5332ED12635-GM2 provides multiple independently-programmed reference clocks to an FPGA's GTY/GTX/GTH/GTM transceiver pins from a single chip. Each output bank can drive LVDS, LVPECL, or HCSL to match the FPGA's reference input standard without level shifters. With output frequencies up to 333.33 MHz the part covers common 156.25 MHz and 161.13 MHz transceiver reference rates used in 10G/25G Ethernet and CPRI. The embedded internal crystal removes an external oscillator and load caps from the BOM, reducing board area in dense FPGA carrier cards. I2C programming with on-chip NVM lets the factory-configured order code replace a stack of fixed-frequency oscillators.
Được đề xuất
Industrial Ethernet Switch Timing
The SI5332ED12635-GM2 serves as the consolidated clock tree for industrial Ethernet switches and routers that need deterministic, low-jitter timing for PHY reference inputs, CPU timers, and management-PHY clocks. Eight independently programmable outputs allow one part to replace separate oscillators serving 1G, 10G, and 2.5G PHYs plus a managed switch CPU. Industrial temperature range (-40C to +85C) and a 1.71 V to 3.63 V supply range match the 3.3 V rails common on industrial networking hardware. The exposed thermal pad handles the modest power dissipation of 8-output CMOS/HCSL configurations without a heatsink.
Được đề xuất
Test and Measurement Instrumentation
Test-and-measurement equipment such as oscilloscopes, signal analyzers, and protocol testers requires multiple ultra-low-jitter clocks for ADC sampling, FPGA fabric, and trigger subsystems. The SI5332ED12635-GM2 with its 0.175 ps RMS typical jitter and 333.33 MHz output ceiling provides reference clocks for 12-bit to 16-bit ADC sampling stages where aperture jitter directly limits effective SNR. The five output banks let one device drive ADC sample clocks, FPGA transceivers, and trigger logic from a single time base. Embedded internal crystal simplifies calibration by removing external XTAL aging as a variable. I2C programmability supports per-test-config clock reconfiguration.
Được đề xuất
Broadcast Video Frame Sync
The SI5332ED12635-GM2 generates the multiple pixel clocks, audio clocks, and reference frequencies needed by broadcast video frame synchronizers, multi-viewers, and routing switchers. Eight independently-programmable outputs cover 27 MHz reference, 74.25 MHz 720p/1080i pixel clocks, 148.5 MHz 1080p pixel clocks, and AES audio clocks from a single part. MultiSynth fractional synthesis avoids the integer-bound spurs that can alias into video pixel data and produce visible artifacts. The 40-TFLGA exposed-pad package fits the dense thermal constraints of 1RU broadcast equipment where PCB area is at a premium.
Được đề xuất
Medical Imaging and Diagnostic Equipment
The SI5332ED12635-GM2 provides the multi-rate clock fan-out demanded by ultrasound carts, patient-monitoring systems, and CT/MRI subsystems where multiple ADC/DAC channels and FPGA processing nodes must share a coherent timing reference. Eight independent outputs allow separate clocks for transducer excitation, analog front-end ADC sampling, and FPGA fabric reference without the phase-noise jitter of cascaded PLLs. Embedded crystal and I2C NVM reduce calibration steps in production and minimize long-term drift. The industrial -40C to +85C temperature range meets the environmental envelope of clinical equipment. Compliance with RoHS and Skyworks' quality system supports medical end-product certification pathways.
Được đề xuất
Tóm tắt các sản phẩm được đề xuất
Dữ liệu tham khảo kỹ thuật cho SI5332ED12635-GM2 — so sánh, hướng dẫn thiết kế và thông tin tuân thủ.
Hướng dẫn chọn lựa
So sánh với các sản phẩm thay thế
| Tham số | Sản phẩm này | SI5332ED12635-GM2R | SI5332E-D-GM2 | SI5332A-D-GM2 | SI5332B-D-GM2 | SI5332C-D-GM2 |
|---|---|---|---|---|---|---|
| Brand | Skyworks | Skyworks | Skyworks | Skyworks | Skyworks | Skyworks |
| Package | 40-TFLGA exposed pad | 40-TFLGA exposed pad (same) | 40-TFLGA exposed pad (same) | 40-TFLGA exposed pad (same) | 40-TFLGA exposed pad (same) | 40-TFLGA exposed pad (same) |
| Internal Crystal | Yes (embedded) | Yes (embedded) | Yes (embedded) | No (external XTAL required) | Yes (embedded) | Yes (embedded) |
| Core Supply Voltage | 1.71 V to 3.63 V | 1.71 V to 3.63 V | 1.71 V to 3.63 V | 1.71 V to 3.63 V | 1.71 V to 3.63 V | 1.71 V to 3.63 V |
| RMS Phase Jitter (typ) | 0.175 ps | 0.175 ps | 0.175 ps | 0.175 ps | 0.175 ps | 0.175 ps |
| Operating Temperature | -40C to +85C | -40C to +85C | -40C to +85C | -40C to +85C | -40C to +85C | -40C to +85C |
| RoHS | Compliant | Compliant | Compliant | Compliant | Compliant | Compliant |
Bảo phân biệt quan trọng
- Embedded internal crystal eliminates external oscillator BOM (vsSI5332A-D-GM2)
- Factory-configured NVM frequency plan (vsSI5332E-D-GM2 (blank NVM))
- Eight outputs vs typical 3-4 in cross-brand clock generators (vsGeneric 3-output PLL)
Ghi chú thiết kế
Place a 1 uF X7R ceramic decoupling capacitor within 2 mm of each VDD pin and 100 nF X7R within 1 mm of each VDDO bank supply pin. The Si5332E's 1.71 V to 3.63 V core supply must be sequenced such that VDD rises before VDDO banks to avoid latch-up; a simple RC delay on the bank enables can achieve this. Estimated: at full 8-output CMOS drive into 50 ohm AC-coupled loads, total supply current stays below 250 mA on VDD.
The 40-TFLGA exposed pad is the primary heat-dissipation path. Connect it to a contiguous ground plane with at least 8 thermal vias (0.3 mm drill, 0.5 mm pitch) directly under the pad to spread heat into inner PCB copper layers. Estimated: with all eight outputs driving 333.33 MHz LVDS into 100 ohm differential loads, total device dissipation is approximately 0.7 W; thermal resistance theta_JA on a 4-layer JEDEC test board is around 28 C/W, so junction rise above ambient is roughly 20C - well within the -40C to +85C operating range without a heatsink.
Differential output traces must be length-matched within 150 mils (3.8 mm) within a pair and within 500 mils (12.7 mm) across outputs of the same bank to preserve timing alignment at 333.33 MHz. Use 100 ohm differential impedance with 8 mil/4 mil trace/space stack-up on 4-layer FR4. Keep output traces away from switching power inductors and route guard ground on both sides of each pair. Place series AC-coupling capacitors (typically 0.1 uF X7R) close to the driver end of the trace.
Do not confuse SI5332E with SI5332A/B/C variants - the A variant requires an external crystal on XA/XB pins and lacks the embedded crystal of the SI5332ED12635-GM2. Confirm the part number before PCB release: an SI5332E-D-GM2 cannot be populated into a SI5332A footprint that lacks an external oscillator. I2C address conflicts on shared buses - the Si5332E ships at 7-bit address 0x70; if another part on the same bus uses this address, the bus must be split.
Thông tin tuân thủ
RoHS and REACH compliance per Skyworks Si5332 product page. Not AEC-Q100 qualified - for automotive timing trees consider Si5332Q automotive variants. Halogen-free status not explicitly stated in retrieved data.
