SY89465UMG TR vs LMK00308SQ/NOPB
| Part Number |
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| Category | Clock/Timing - Clock Buffers, Drivers | Clock/Timing - Clock Buffers, Drivers |
| Manufacturer | Microchip Technology | Texas Instruments |
| Description | IC CLK MULTIPLXR 2:10 2GHZ 44MLF | IC CLK BUFFER 3:9 3.1GHZ 40WQFN |
| Package | -Reel® | Cut Tape (CT) |
| Series | Precision Edge® | - |
| Type | Multiplexer | Fanout Buffer (Distribution), Multiplexer, Translator |
| Voltage - Supply | 2.375V ~ 2.625V | 3.15V ~ 3.45V |
| Operating Temperature | -40°C ~ 85°C | -40°C ~ 85°C |
| Mounting Type | Surface Mount | Surface Mount |
| Package / Case | 44-VFQFN Exposed Pad, 44-MLF® | 40-WFQFN Exposed Pad |
| Supplier Device Package | 44-MLF® (7x7) | 40-WQFN (6x6) |
| Output | LVDS | HCSL, LVCMOS, LVDS, LVPECL |
| Frequency - Max | 2 GHz | 3.1 GHz |
| Number of Circuits | 1 | 1 |
| Input | CML, LVDS, PECL | CML, HCSL, HSTL, LVDS, LVPECL, SSTL, Crystal |
| Ratio - Input:Output | 2:10 | 3:9 |
| Differential - Input:Output | Yes/Yes | Yes/Yes |
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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.
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2. What is the function of a clock driver?
The function of a clock driver is to enhance the driving capability of the clock signal, ensuring that the signal can be transmitted further or drive more loads without causing signal attenuation or distortion. It is particularly important in high-frequency and high load applications.
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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.
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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
