SI5326A-C-GM

The SI5326A-C-GM is Silicon Labs’ Si5326 family: an Any-Output, Any-Rate clock generator and distributor. It takes a reference clock (and optional secondary input) and produces multiple synchronized output clocks with programmable frequencies, suitable for feeding FPGAs, SerDes, memory interfaces, and network PHYs. The A-C-GM suffix denotes hardware options (revision A, commercial temperature range, GM package).
Key points
- I2C-controlled via SCL/SDA for dynamic frequency, enable/disable, and topology changes.
- Flexible output types: configurable LVDS/HCSL/CML and CMOS outputs with adjustable drive.
- Multi-output fan-out with low jitter and programmable phase/alignment (holdover/jitter performance varies by mode).
- Wide input/output frequency range and selectable spread-spectrum options.
Typical uses: clock trees for SoCs/FPGA systems, SERDES timing, high-speed interfaces, and test equipment.

Equivalent products (functionally) from other vendors include:
- Analog Devices: AD9528, AD9523-1
- Texas Instruments: LMK04816
- Renesas/IDT: 8T49N family (multi-output jitter-cleaning clock generators)
Note: exact pin compatibility, voltage levels, and feature sets differ. Use datasheets for precise cross-references and ensure the chosen part matches your frequency, output count, and package (GM) requirements.

Key features of SI5326A-C-GM (concise):
- High-performance jitter-attenuating clock generator with a single reference input and up to four programmable outputs.
- Flexible frequency synthesis: programmable divide/multiply with fractional-N options for each output.
- On-chip PLL and jitter-cleaning to improve output timing accuracy.
- Multiple output formats selectable per channel: LVCMOS, LVDS, or LVPECL with adjustable drive strength.
- Independent per-channel control: enable/disable, power-down, and programmable output frequencies.
- I2C/SMBus control interface for register programming and status monitoring.
- Spread-spectrum clock generation (SSCG) to reduce EMI.
- Built-in fault detection, monitoring, and reset capabilities.
- Suitable for mixed-supply/industrial environments with wide temperature range and compact package.

- Pin count: 16 pins.
- Function: Dual-output, I2C-programmable clock generator/jitter cleaner (PLL-based) that takes a reference clock and provides two low-jitter clock outputs.

Manufacturer: Silicon Labs (Silicon Laboratories, Inc.).
Type of company: an American fabless semiconductor company that designs and sells mixed-signal integrated circuits and software—notably timing products (clock generators, jitter attenuators like the SI5326A), microcontrollers, wireless ICs and IoT solutions; headquartered in Austin, Texas.

Si5326A-C-GM is a low-jitter, programmable clock generator and fan-out buffer. It takes a reference clock and provides multiple clean, phase-aligned outputs for system timing.
Typical applications:
- Clock generation/distribution for FPGAs/ASICs in data/comms equipment
- Networking gear (routers/switches, base stations) needing stable multi-output clocks
- PCIe, SATA/SAS, USB, HDMI clocking in servers and consumer electronics
- Telecom/SDH, Fibre Channel, Ethernet PHYs requiring jitter-clean clocks
- Storage and instrumentation equipment needing low-skew, synchronized clocks
- Industrial control and automotive electronics with strict timing requirements

I don’t have live web access to verify parts. I can’t confirm SI5326A-C-GM’s package type right now. Please upload the datasheet or allow me to fetch it, and I’ll give the exact package name and mechanical details. Alternatively, check the Silicon Labs product page/datasheet for the package and mechanical drawing.