LMK1C1108集成电路（IC）的时钟缓冲器驱动器规格书PDF中文资料

LMK1C1108属于集成电路（IC）的时钟缓冲器驱动器。由德州仪器制造生产的LMK1C1108时钟缓冲器，驱动器时钟缓冲器和驱动器集成电路产品族中的产品用于帮助信号在系统中传输，常用作频率/时间参考信号，以同步系统内的活动。尽管这些器件最常用到的功能就是缓冲（即，为使信号不受驱动负载的影响而从某个信号源复制信号），但是该产品族中的某些器件还能执行其他功能，例如选择性改变缓冲信号路径、按某个整数值分割信号频率，或进行所用电信号格式转换。

1 Features

• High-performance 1:2, 1:3, 1:4, 1:6 and 1:8

LVCMOS clock buffer

• Very low output skew:

– LMK1C1102A, LMK1C1103A and

LMK1C1104A < 50ps

– LMK1C1106 and LMK1C1108 < 55ps

• Extremely low additive jitter:

– LMK1C1102A, LMK1C1103A and

LMK1C1104A

• 7.5fs typical at VDD = 3.3V

• 10fs typical at VDD = 2.5V

• 19.2fs typical at VDD = 1.8V

– LMK1C1106A and LMK1C1108A

• 12fs typical at VDD = 3.3V

• 15fs typical at VDD = 2.5V

• 28fs typical at VDD = 1.8V

• Very low propagation delay < 3ns

• Asynchronous output enable

• Supply voltage: 3.3V, 2.5V, or 1.8V

– Fail-safe inputs: 3.3V tolerant input at all supply

voltages

• fmax = 250MHz for 3.3V

fmax = 200MHz for 2.5V or 1.8V

• Operating temperature range: –40°C to 125°C

2 Applications

• Factory automation & control

• Telecommunications equipment

• Data center & enterprise computing

• Grid infrastructure

• 1PPS Applications

• Motor drives

• Medical imaging

3 Description

The LMK1C110xA is a modular, high-performance,

low-skew, general-purpose clock buffer family from

Texas Instruments. The entire family is designed with

a modular approach in mind. Five different fan-out

variations, 1:2, 1:3, 1:4, 1:6 and 1:8 are available.

All of the devices within this family are pin-compatible

to each other and backwards compatible to the

CDCLVC110x family for easy handling.

The LMK1C110xA supports a asynchronous output

enable control (1G) which switches the outputs into a

low state when 1G is low. Asynchronous enable and

disable is helpful for 1PPS applications and DC inputs

operations. These devices have a fail-safe input that

prevents oscillation at the outputs in the absence of

an input signal and allows for input signals before

VDD is supplied.