CDCE421A集成电路（IC）的时钟发生器PLL频率合成器规格书PDF中文资料

CDCE421A属于集成电路（IC）的时钟发生器PLL频率合成器。由德州仪器制造生产的CDCE421A时钟发生器，PLL，频率合成器时钟发生器、PLL 和频率合成器集成电路 (IC) 可为逻辑器件提供参考信号的稳定定时脉冲，这些器件包括计算机、微控制器、数据通信系统和图形/视频发生器。这些集成电路可能包括缓冲器、驱动器、分频器、倍频器、多路复用器、合成器、扇出分配器和预分频器。

1FEATURES

2· Single Supply at 3.3 V for LVPECL or LVDS

Operation

· High-Performance Clock Multiplier,

Incorporating Crystal Oscillator Circuitry with

Integrated Frequency Synthesizer

· Low Output Jitter: 380 fs RMS typical

(from 10 kHz to 20 MHz)

· Low Phase Noise at High Frequency (708-MHz

LVPECL):

– Typically –109 dBc/Hz at 10 kHz and

–146dBc/Hz at 10 MHz from the carrier

· Supports Crystal or LVCMOS Input

Frequencies from 27.35 MHz to 38.33 MHz

· Output Frequency Ranges from 10.9 MHz to

766.7 MHz and from 875.2 MHz to 1175 MHz

· Low-Voltage Differential Signaling (LVDS)

Output, 100-Ω Differential Off-Chip

Termination, 10.9-MHz to 400-MHz Frequency

Range

· Differential Low-Voltage Positive Emitter

Coupled Logic (LVPECL) Outputs, 10.9-MHz to

1.175-GHz Frequency Range

· Two Fully-Integrated Voltage-Controlled

Oscillators (VCO) Support Wide Output

Frequency Range

· Fully Integrated Programmable Loop Filter

· Typical Power Consumption at 3.3 V:

– 274 mW in LVDS mode

– 250 mW in LVPECL mode

· Chip Enable Control Pin

· Simple Serial Interface Allows Programming

after Manufacturing

· Integrated On-Chip Nonvolatile Memory

(EEPROM) Stores Settings Without Applying

High Voltage

· Available in 4-mm × 4-mm QFN-24 Package

· ESD Protection Exceeds 2 kV (HBM)

· Industrial Temperature Range: –40°C to +85°C

APPLICATIONS

· Low-Cost, High-Frequency Crystal Oscillator