CDCE6214-Q1 Ultra-low power clock generator with 1 PLL, 4 differential outputs, 2 inputs, and internal EEPROM | TI.com

CDCE6214-Q1
This product is prototype/experimental and has not been released to the market. Testing and final processes may not be complete. This product may be subject to further changes or possible discontinuation
Ultra-low power clock generator with 1 PLL, 4 differential outputs, 2 inputs, and internal EEPROM

 

Sample availability

Preproduction samples are available (PCDCE6214TWRGETQ1). Request now

Description

The CDCE6214-Q1 is a four-channel, ultra-low power, medium grade jitter, clock generator for automotive applications that can generate five independent clock outputs selectable between various modes of drivers. The input source could be a single-ended or differential input clock source, or a low-frequency crystal. The CDCE6214-Q1 features a frac-N PLL to synthesize unrelated base frequency from any input frequency. The CDCE6214-Q1 can be configured through the I2C interface. In the absence of the serial interface, the GPIO pins can be used in Pin Mode to configure the product into distinctive configurations. On-chip EEPROM (Non-volatile Memory) can be used to change the configuration, which is pre-selectable through the pins.

The device provides frequency margining options with glitch-free operation to support system design verification tests (DVT) and Ethernet Audio-Video Bridging (eAVB). Fine frequency margining is available on any output channel by steering the fractional feedback divider in DCO mode.

Internal power conditioning provides excellent power supply ripple rejection (PSRR), reducing the cost and complexity of the power delivery network. The analog and digital core blocks operate from either a 1.8-V, 2.5-V, or 3.3-V ±5% supply, and output blocks operate from a 1.8-V, 2.5-V, or 3.3-V ±5% supply.

The CDCE6214-Q1 enables high-performance clock trees from a single reference at ultra-low power with a small footprint. The factory- and user-programmable EEPROM features make the CDCE6214-Q1 an easy-to-use, instant-on clocking device with a low power consumption.

Features

  • AEC-Q100 qualified for automotive applications
    • Temperature grade 2: –40°C to +105°C
  • Configurable high performance, low-power, frac-N PLL with RMS jitter with spurs (12 kHz – 20 MHz, Fout > 100 MHz) as:
    • Integer mode:
      • Differential output: 350fs typical, 600fs maximum
      • LVCMOS output: 1.05ps typical, 1.5ps maximum
    • Fractional mode:
      • Differential output: 1.7ps typical, 2.1ps maximum
      • LVCMOS output: 2.0ps typical, 4.0ps maximum
    • Supports PCIe Gen1/2/3 with SSC and Gen 1/2/3/4 without SSC
    • 2.35-GHz to 2.6-GHz internal VCO
  • Typical power consumption: 120 mW at 1.8 V
  • Universal clock input, two reference inputs for redundancy
    • Differential AC-coupled or LVCMOS: 10 MHz to 200 MHz
    • Crystal: 10 MHz to 50 MHz
  • Flexible output clock distribution
    • 4 channel dividers: Up to 5 unique output frequencies from 24 kHz to 350 MHz
    • Combination of LVDS-like, LP-HCSL or LVCMOS outputs on OUT0 – 4 pins
    • Glitch-less output divider switching and output channel synchronization
    • Individual output enable through GPIO and register
  • Frequency margining options
    • DCO mode: frequency increment/decrement with 10ppb or less step-size
  • Fully integrated, configurable loop bandwidth: 100 kHz to 1.6 MHz
  • Single or mixed supply for level translation: 1.8/2.5/3.3 V
  • Configurable GPIOs and flexible configuration options
    • I2C-compatible interface: up to 400 kHz
    • Integrated EEPROM with two pages and external select pin
  • Supports 100-Ω systems
  • Small footprint: 24-pin WQFN (4 mm × 4 mm)

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Parametrics

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Part number Order Function Number of outputs Output frequency (Max) (MHz) VCC core (V) VCC out (V) Input type Output type Operating temperature range (C) Package size: mm2:W x L (PKG) Features Package Group Rating
CDCE6214-Q1 Order now Clock generator     4     350     1.8
2.5
3.3    
1.8
2.5
3.3    
Crystal     LVCMOS
LVDS    
-40 to 105     24VQFN: 16 mm2: 4 x 4 (VQFN | 24)     Pin programmable
EEPROM
Serial interface    
VQFN | 24     Automotive    
CDCI6214 Order now Clock generator     4     350     1.8
2.5
3.3    
1.8
2.5
3.3    
Crystal     LVCMOS
LVDS
LVPECL    
-40 to 85     24VQFN: 16 mm2: 4 x 4 (VQFN | 24)     I2C
Pin programmable
EEPROM
Serial interface    
VQFN | 24     Catalog    
CDCM9102 Order now Clock generator     2     1296     3.3     3.3     LVPECL     LVDS     -40 to 85     32VQFN: 25 mm2: 5 x 5 (VQFN | 32)     3.3-V VCC/VDD
Pin programmable    
VQFN | 32     Catalog