規格
| 屬性 | 價值 |
| Package / Case | Tape & Reel (TR) |
| Part Status | Active |
概述
Description
SI5345A-D04313-GMR is Silicon Labs’ high-performance, multi-output clock generator/jitter cleaner. It takes a single reference clock (crystal or oscillator) and generates multiple low-jitter output clocks across different frequencies using fractional-N PLLs and programmable dividers. It supports diverse output standards (LVDS/LVPECL/LVTTL/CMOS/CML), spread-spectrum, holdover, and I2C-based control for dynamic frequency programming. The D04313-GMR suffix identifies the specific orderable revision and package variant (GMR). Typical use cases include clocking for CPUs, FPGAs, and networking ASICs where synchronized clocks across multiple domains are required. For exact electrical specs, pinout, and programming details, consult the Si5345A datasheet and application notes.
Features
Here are the key features of SI5345A-D04313-GMR (high-level, concise):
- Flexible jitter-cleaning clock generator with multi-output distribution
- Any-Output, Any-Frequency capability for programmable output clocks
- Internal PLLs/VCO-based frequency synthesis for precise, low-jitter clocks
- I2C (two-wire) control interface for programming frequencies, enables, and drive settings
- Programmable output enables/power-downs and glitch-free frequency switching
- Output clock monitoring and fault detection (loss of signal, out-of-lock indicators)
- Spread-spectrum clocking support to reduce EMI
- Suitable for high-speed SERDES, memory, PCIe, Ethernet, and other timing-critical sources
- RoHS-compliant packaging (GMR) with suitable footprint for dense designs
Note: The D04313-GMR suffix and package code denote lot/date and packaging, not functional differences.
- Flexible jitter-cleaning clock generator with multi-output distribution
- Any-Output, Any-Frequency capability for programmable output clocks
- Internal PLLs/VCO-based frequency synthesis for precise, low-jitter clocks
- I2C (two-wire) control interface for programming frequencies, enables, and drive settings
- Programmable output enables/power-downs and glitch-free frequency switching
- Output clock monitoring and fault detection (loss of signal, out-of-lock indicators)
- Spread-spectrum clocking support to reduce EMI
- Suitable for high-speed SERDES, memory, PCIe, Ethernet, and other timing-critical sources
- RoHS-compliant packaging (GMR) with suitable footprint for dense designs
Note: The D04313-GMR suffix and package code denote lot/date and packaging, not functional differences.
Pinout
- Pin count: 16 pins (GMR package, QFN-style)
- Function: Multi-output clock generator / jitter-cleaning zero-delay buffer (programmable via I2C to synthesize multiple clock outputs from a reference).
- Function: Multi-output clock generator / jitter-cleaning zero-delay buffer (programmable via I2C to synthesize multiple clock outputs from a reference).
Manufacturer
- Manufacturer: Silicon Labs (Silicon Laboratories, Inc.)
- What kind of company: A fabless semiconductor company that designs and sells mixed-signal ICs, including timing devices (clock generators/zero-delay buffers) and related embedded solutions.
- What kind of company: A fabless semiconductor company that designs and sells mixed-signal ICs, including timing devices (clock generators/zero-delay buffers) and related embedded solutions.
Application
Si5345A-D04313-GMR is a high‑precision, multi‑output clock generator and jitter cleaner. Typical applications include:
- High‑speed serial interfaces: PCIe, SATA/SAS, USB 3.x, HDMI/DisplayPort
- Networking/telecom equipment: switches, routers, line cards, PHY timing
- Data‑center/servers: CPU/memory/SoC clocks, PCIe and memory clock distribution
- FPGA/ASIC designs needing multiple synchronized clocks and SERDES references
- Consumer electronics and multimedia: video/audio timing
- Test and measurement gear requiring ultra‑low jitter reference clocks
- High‑speed serial interfaces: PCIe, SATA/SAS, USB 3.x, HDMI/DisplayPort
- Networking/telecom equipment: switches, routers, line cards, PHY timing
- Data‑center/servers: CPU/memory/SoC clocks, PCIe and memory clock distribution
- FPGA/ASIC designs needing multiple synchronized clocks and SERDES references
- Consumer electronics and multimedia: video/audio timing
- Test and measurement gear requiring ultra‑low jitter reference clocks
Package
It uses a 16‑pin QFN package (4×4 mm).
