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Texas Instruments CDCE6214Q1TM Ultra-Low Power Clock Generator

Texas Instruments CDCE6214Q1TM Ultra-Low Power Clock Generator is a 4-channel, medium-grade jitter clock generator for automotive applications that can generate five independent clock outputs. These outputs are selectable between various modes of drivers. The input source can be a single-ended or differential input clock source or a crystal. The Texas Instruments CDCE6214Q1TM features a frac-N PLL to synthesize unrelated base frequencies from any input frequency.

Features

AEC-Q100 qualified for automotive applications
- Temperature grade 2 (–40°C to +105°C)
Functional Safety-Capable
- Documentation available to aid functional safety system design
Configurable high-performance, low-power, frac-N PLL with RMS jitter with spurs (12kHz to 20MHz, Fout > 100MHz) as
- Integer mode
  - 350fs typical, 600fs maximum differential output
  - 1.05ps typical, 1.5ps maximum LVCMOS output
- Fractional mode
  - 1.7ps typical, 2.1ps maximum differential output
  - 2.0ps typical, 4.0ps maximum LVCMOS output
Supports PCIe Gen1/2/3/4 with SSC and Gen 1/2/3/4/5 without SSC
2.335GHz to 2.625GHz internal VCO
Typical power consumption of 65mA for 4-output channel, 23mA for 1-output channel
Universal clock input, two reference inputs for redundancy
- 10MHz to 200MHz differential AC-coupled or LVCMOS
- 10MHz to 50MHz crystal
Flexible output clock distribution
- Four-channel dividers of up to five unique output frequencies from 24kHz to 328.125MHz
- Combination of LVDS-like, LP-HCSL, or LVCMOS outputs on OUT0 – OUT4 pins
- Glitchless output divider switching and output channel synchronization
- Individual output enable through active-low GPIO and register

Frequency margining options
- DCO mode with frequency increment/decrement with 10ppb or less step-size
100kHz to 1.6MHz fully-integrated, configurable loop bandwidth
Single or mixed supply for level translation of 1.8V, 2.5V, and 3.3V
Configurable GPIOs and flexible configuration options
- I²C-compatible interface up to 400kHz
- Integrated EEPROM with two pages and an external select pin with In-situ programming allowed
Supports 100Ω systems
Low electromagnetic emissions
24-pin VQFN (4mm × 4mm) small footprint

Applications

PCIe Gen 1 – Gen 5 clocking
Advanced driver assistance systems (ADAS) – sensor fusion
Infotainment and cluster – automotive head unit – eAVB
Data center and enterprise computing

PC and notebooks
Enterprise machine – multifunction printer
Test and measurement – handheld equipment

Texas Instruments CDCE6214Q1TM Ultra-Low Power Clock Generator

Features

Applications

Functional Block Diagram

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