Texas Instruments LMK03318 Ultra-Low-Noise Jitter Clock Generator
Texas Instruments LMK03318 Ultra-Low-Noise PLLatinum™ Clock Generator is a clock generator with one fractional-N frequency synthesizer with integrated VCO. These also have a flexible clock distribution/fanout, and pin-selectable configuration states stored in on-chip EEPROM. The device can generate multiple clocks for various multi-gigabit serial interfaces and digital devices. The multiple clock generation reduces BOM cost and board area and improves reliability by replacing multiple oscillators and clock distribution devices. The ultra-low jitter reduces the Bit-Error-Rate (BER) in high-speed serial links. Typical applications include switches and routers, network and telecom line cards, servers and storage systems, and wireless base stations.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 start-up options
- Dual inputs with automatic or manual selection:
- Crystal input: 10 to 52MHz
- External input: 1 to 300MHz
- Frequency margining options:
- Fine frequency margining using low-cost pullable crystal reference
- Glitchless coarse frequency margining (%) using output dividers
- Other features:
- Supply: 3.3V core, 1.8V, 2.5V, or 3.3V output supply
- Industrial temperature range (-40°C to 85°C)
Applications
- Switches and routers
- Network and telecom line cards
- Servers and storage systems
- Wireless base station
LMK03318 Block Diagram
Publicado: 2016-02-15
| Actualizado: 2022-03-11
