CDCE6214LTWRGERQ1中文资料德州仪器数据手册PDF规格书

1 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 (12 kHz – 20 MHz,

Fout > 100 MHz) as:

– Integer mode:

• Differential output: 350 fs typical, 600 fs

maximum

• LVCMOS output: 1.05 ps typical, 1.5 ps

maximum

– Fractional mode:

• Differential output: 1.7 ps typical, 2.1 ps

maximum

• LVCMOS output: 2.0 ps typical, 4.0 ps

maximum

• Supports PCIe Gen1/2/3/4 with SSC and Gen

1/2/3/4/5 without SSC

• Internal VCO: 2.335 GHz to 2.625 GHz

• Typical power consumption: 65 mA for 4-output

channel, 23 mA for 1-output channel.

• 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

– Four channel dividers: Up to five unique output

frequencies from 24 kHz to 328.125 MHz

– 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: 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 V,

2.5 V, 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. In-situ programming

allowed.

• Supports 100-Ω systems

• Low electromagnetic emissions

• Small footprint: 24-pin VQFN (4 mm × 4 mm)

2 Applications

• PCIe Gen 1 - Gen 5 clocking

• Advanced driver assistance systems (ADAS) -

sensor fusion

• Infotainment & cluster - automotive head unit -

eAVB

• Data center & enterprise computing

• PC & notebooks

• Enterprise machine - multifunction printer

• Test & measurement - handheld equipment

3 Description

The CDCE6214Q1TM is a 4-channel, ultra-low power,

medium grade jitter, clock generator for automotive

application that can generate five independent clock

outputs selectable between various modes of drivers.

The input source can be a single-ended or differential

input clock source, or a crystal. The CDCE6214Q1TM

features a frac-N PLL to synthesize unrelated base

frequency from any input frequency.