CDCE6214Q1TM数据手册TI中文资料规格书

描述 Description

CDCE6214Q1TM 是一款 适合汽车应用的 4 通道、超低功耗、中级抖动时钟发生器，可生成五个在各种驱动器模式之间可选的独立时钟输出。输入源可以是单端或差分输入时钟源，也可以是晶体。 CDCE6214Q1TM 具有一个分数 N PLL，可在任何输入频率下合成不相关的基础频率。

特性 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, F out > 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
• I 2C-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)