CDCLVD1208RHDR vs ZL40219LDF1
| Part Number |
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| Category | Clock/Timing - Clock Buffers, Drivers | Clock/Timing - Clock Buffers, Drivers |
| Manufacturer | Texas Instruments | Microchip Technology |
| Description | IC CLK BUFFER 2:8 800MHZ 28VQFN | IC CLK BUFFER 1:8 750MHZ 32QFN |
| Package | Cut Tape (CT) | Tape & Reel (TR) |
| Series | - | - |
| Type | Fanout Buffer (Distribution), Multiplexer | Fanout Buffer (Distribution) |
| Voltage - Supply | 2.375V ~ 2.625V | 2.375V ~ 3.465V |
| Operating Temperature | -40°C ~ 85°C | -40°C ~ 85°C |
| Mounting Type | Surface Mount | Surface Mount |
| Package / Case | 28-VFQFN Exposed Pad | 32-VFQFN Exposed Pad |
| Supplier Device Package | 28-VQFN (5x5) | 32-QFN (5x5) |
| Output | LVDS | LVDS |
| Frequency - Max | 800 MHz | 750 MHz |
| Number of Circuits | 1 | 1 |
| Input | LVCMOS, LVDS, LVPECL | CML, HCSL, LVCMOS, LVDS, LVPECL |
| Ratio - Input:Output | 2:8 | 1:8 |
| 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 are the main applications of clock buffers?
Clock buffers are widely used in systems that require the distribution of clock signals to multiple devices, such as computer motherboards, servers, communication equipment, data centers, and industrial control systems, to ensure synchronized operation of all devices.
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3. 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 -
4. Does the clock driver support differential signals?
Yes, many clock drivers support differential signaling, such as LVDS, CML, and HCSL, which can provide higher anti-interference capabilities, especially in high-speed signal transmission applications.
