CDCLVD2108RGZT集成电路（IC）的时钟缓冲器驱动器规格书PDF中文资料

CDCLVD2108RGZT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CDCLVD2108RGZT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。

1FEATURES

• Dual 1:8 Differential Buffer

• Low Additive Jitter <300 fs RMS in

10 kHz to 20 MHz

• Low Within Bank Output Skew of 50 ps (Max)

• Universal Inputs Accept LVDS, LVPECL,

LVCMOS

• One Input Dedicated for Eight Outputs

• Total of 16 LVDS Outputs, ANSI EIA/TIA-644A

Standard Compatible

• Clock Frequency up to 800 MHz

• 2.375–2.625V Device Power Supply

• LVDS Reference Voltage, V AC_REF, Available for

Capacitive Coupled Inputs

• Industrial Temperature Range –40°C to 85°C

• Packaged in 7mm × 7mm 48-Pin QFN (RGZ)

• ESD Protection Exceeds 3 kV HBM, 1 kV CDM

APPLICATIONS

• Telecommunications/Networking

• Medical Imaging

• Test and Measurement Equipment

• Wireless Communications

• General Purpose Clocking

DESCRIPTION

The CDCLVD2108 clock buffer distributes two clock

inputs (IN0, IN1) to a total of 16 pairs of differential

LVDS clock outputs (OUT0, OUT15). Each buffer

block consists of one input and 8 LVDS outputs. The

inputs can either be LVDS, LVPECL, or LVCMOS.

The CDCLVD2108 is specifically designed for driving

50-Ω transmission lines. In case of driving the inputs

in single ended mode, the appropriate bias voltage

(VAC_REF) should be applied to the unused negative

input pin.

Using the control pin (EN) outputs can be either

disabled or enabled. If the EN pin is left open all

outputs are active, if switched to a logical '0' all

outputs are disabled (static logical 0), if switched to a

logical '1', OUT (8..15) are switched off and OUT

(0..7) are active. The part supports a fail safe

function. It incorporates an input hysteresis, which

prevents random oscillation of the outputs in absence

of an input signal.

The device operates in 2.5V supply environment and

is characterized from –40°C to 85°C (ambient

temperature). The CDCLVD2108 is packaged in

small 48-pin, 7-mm x 7-mm QFN package.