CDCI6214
CDCI6214 is Ultra-Low Power Clock Generator manufactured by Texas Instruments.
Features
- One configurable high performance, low-power PLL with four programmable outputs
- RMS jitter performance
- Supports PCIe Gen1/ Gen2 / Gen3 / Gen4 without SSC
- Typical power consumption: 150m W at 1.8V(2)
- Universal clock input
- Differential AC-coupled or LVCMOS: 1MHz to 250MHz
- Crystal: 8MHz to 50MHz
- Flexible output frequencies
- 44.1k Hz to 350MHz
- Glitchless output divider switching
- Four individually configurable outputs
- LVCMOS, LVDS or HCSL
- Differential AC-coupled with programmable swing (LVDS-, CML-, LVPECL-patible)
- Fully integrated PLL, configurable loop bandwidth:
100k Hz to 3MHz
- Single or mixed supply operation for level translation: 1.8V, 2.5V and 3.3V
- Configurable GPIOs
- Status signals
- Up to four individual output enables
- Output divider synchronization
- Flexible configuration options
- I2C-patible interface: up to 400k Hz
- Integrated EEPROM with two pages and external select pin
- Only supports 100Ω systems
- Industrial temperature range:
- 40°C to 85°C
- Small footprint: 24-pin VQFN (4mm × 4mm)
2 Applications
- PCIe Gen 1/2/3/4 clocking
- 1G / 10G Ethernet switches, NIC, accelerators
- Test & measurement, handheld equipment
- Multi-function printers
- Broadcast infrastructure
3 Description
The CDCI6214 device is an ultra-low power clock generator. The device selects between two independent reference inputs to a phase-locked loop and generates up to four different frequencies on configurable differential output channels and also a copy of the reference clock on a LVCMOS output channel.
Each of the four output channels has a configurable integer divider. Together with the output muxes, this allows up to five different frequencies. Clock distribution dividers are reset in a deterministic way for clean clock gating and glitch-less update capability. Flexible power-down options allow to optimize the device for lowest power consumption in active and standby operation. Typically four 156.25MHz LVDS outputs consume 150m W at...