853S54AKI-01LFT vs 8SLVP1212ANLGI
| Part Number |
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| Category | Clock/Timing - Clock Buffers, Drivers | Clock/Timing - Clock Buffers, Drivers |
| Manufacturer | Renesas Electronics America Inc | Renesas Electronics America Inc |
| Description | VFQFPN 3.00X3.00X1.00 MM, 0.50MM | IC FANOUT BUFFER LVPECL 40VFQFPN |
| Package | Tape & Reel (TR) | Tray |
| Series | - | - |
| Type | Multiplexer | Fanout Buffer (Distribution), Multiplexer |
| Voltage - Supply | 2.375V ~ 2.625V, 3.135V ~ 3.465V | 2.375V ~ 2.625V, 3.135V ~ 3.465V |
| Operating Temperature | -40°C ~ 85°C (TA) | -40°C ~ 85°C (TA) |
| Mounting Type | Surface Mount | Surface Mount |
| Package / Case | 16-VFQFN Exposed Pad | 40-VFQFN Exposed Pad |
| Supplier Device Package | 16-VFQFPN (3x3) | 40-VFQFPN (6x6) |
| Output | LVPECL | LVPECL |
| Frequency - Max | 2.5 GHz | 2 GHz |
| Number of Circuits | 2 | 1 |
| Input | CML, LVDS, LVPECL | CML, LVCMOS, LVDS, LVPECL |
| Ratio - Input:Output | 2:1, 1:2 | 2:12 |
| 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. 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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3. 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.
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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
