Texas Instruments LMK03328 Ultra-Low Jitter Clock Generators
Texas Instruments LMK03328 Ultra-Low Jitter Clock Generators include two fractional-N frequency synthesizers with integrated VCOs, flexible clock distribution/fanout, and pin-selectable configuration states. The device can generate multiple clocks for various multi-gigabit serial interfaces and digital devices. This reduces BOM cost and board area and improves reliability by replacing multiple oscillators and clock distribution devices. The ultra-low-jitter reduces Bit Error Rate (BER) in high-speed serial links.
Features
- Ultra-low noise, high performance:
- Jitter: 100fs RMS typical, Fout > 100MHz
- PSRR: -70dBc, robust supply noise immunity
- Flexible device options:
- Up to 8 AC-LVPECL, AC-LVDS, AC-CML, HCSL or LVCMOS outputs or any combination
- Pin mode, I2C mode, and EEPROM mode
- 71-pin selectable pre-programmed default startup options
- Dual inputs with an automatic or manual selection:
- Crystal input: 10 to 52MHz range
- External input: 1 to 300MHz range
- Frequency margining options:
- Fine frequency margining (±50ppm typical) using low-cost pullable crystal reference
- Glitchless coarse frequency margining (%) using output dividers
- Other features:
- Supply: 3.3V core, 1.8/2.5/3.3V output supply
- Industrial temperature range (-40°C to 85°C)
- Package: 7mm x 7mm 48-QFN
Applications
- Switches and routers
- Network and telecom line cards
- Servers and storage systems
- Wireless base station
Associated Tool
Texas Instruments LMK03328EVM Evaluation Module (EVM)
Provides a complete clocking platform to evaluate the performance of the LMK03328.
Videos
LMK03328 Block Diagram
TI Reference Designs Library
Paskelbta: 2015-10-06
| Atnaujinta: 2022-03-11