LMH2190TMX-38/NOPB vs MC100ES6220AER2

Part Number	LMH2190TMX-38/NOPB	MC100ES6220AER2
Category	Clock/Timing - Clock Buffers, Drivers	Clock/Timing - Clock Buffers, Drivers
Manufacturer	Texas Instruments	Renesas Electronics America Inc
Description	IC CLK BUFFER 1:4 27MHZ 16DSBGA	IC CLK BUFFER 1:10 1GHZ 52PTQFP
Package	Cut Tape (CT)	Tray
Series	-	100ES
Type	Fanout Buffer (Distribution)	Fanout Buffer (Distribution)
Voltage - Supply	2.5V ~ 5.5V	2.375V ~ 3.465V
Operating Temperature	-20°C ~ 85°C	0°C ~ 70°C
Mounting Type	Surface Mount	Surface Mount
Package / Case	16-WFBGA, DSBGA	52-LQFP Exposed Pad
Supplier Device Package	16-DSBGA	52-PTQFP (10x10)
Output	Clock	LVPECL
Frequency - Max	27 MHz	1 GHz
Number of Circuits	1	2
Input	Clock	ECL, PECL
Ratio - Input:Output	1:4	1:10
Differential - Input:Output	No/No	Yes/Yes

1. 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.
2. How to choose a suitable clock buffer?

When choosing a clock buffer, the following factors need to be considered:

frequency range

Number of output channels

Signal type (differential signal or single ended signal)

Phase noise and jitter performance

Power supply voltage and power consumption
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. What output configurations does the clock buffer support?

Clock buffers typically support multiple output configurations, including single ended output, differential output, programmable delay, or selectable output frequency, to accommodate different system requirements.