IDT74FCT3807EQI8 vs CDCLVD2104RHDT

Part Number	IDT74FCT3807EQI8	CDCLVD2104RHDT
Category	Clock/Timing - Clock Buffers, Drivers	Clock/Timing - Clock Buffers, Drivers
Manufacturer	Renesas Electronics America Inc	Texas Instruments
Description	IC CLK BUFFER 1:10 166MHZ 20QSOP	IC CLK BUFFER 1:4 800MHZ 28VQFN
Package	Tape & Reel (TR)	Tube
Series	74FCT	-
Type	Fanout Buffer (Distribution)	Fanout Buffer (Distribution)
Voltage - Supply	3V ~ 3.6V	2.375V ~ 2.625V
Operating Temperature	-40°C ~ 85°C	-40°C ~ 85°C
Mounting Type	Surface Mount	Surface Mount
Package / Case	20-SSOP (0.154\", 3.90mm Width)	28-VFQFN Exposed Pad
Supplier Device Package	20-QSOP	28-VQFN (5x5)
Output	CMOS, TTL	LVDS
Frequency - Max	166 MHz	800 MHz
Number of Circuits	1	2
Input	LVTTL	LVCMOS, LVDS, LVPECL
Ratio - Input:Output	1:10	1:4
Differential - Input:Output	No/No	Yes/Yes

1. What are clock buffers and drivers?

Clock buffers and drivers are electronic components used for distributing and enhancing clock signals. The clock buffer is used to replicate clock signals and distribute them to multiple outputs, while the driver enhances the signal strength to drive higher loads or longer transmission distances.
2. What is the difference between a clock buffer and a clock driver?

The main function of a clock buffer is to distribute clock signals, while a clock driver is used to enhance signal strength to drive higher loads. Buffer is usually used for branching and synchronizing multiple clock signals, while driver is used to increase signal transmission distance and load capacity.
3. How can clock buffers reduce jitter?

High quality clock buffers are typically designed with low jitter characteristics to ensure phase consistency of output signals and reduce phase noise during transmission. This is crucial for high-precision clock allocation, such as in communication and data transmission applications.
4. How to evaluate the performance of clock drivers?

When evaluating clock drivers, several key parameters need to be considered:

Driving capability (load capacity)

Output signal integrity

Phase noise and jitter

Power noise suppression

Power supply voltage range and power consumption