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Product Detailed Parameters
- Description：IC CLK BUFFER 1:8 250MHZ 48VQFN
- Series：-
- Package：Tape & Reel (TR),Cut Tape (CT)
- Mfr：Texas Instruments
- Type：Clock Buffer
- Number of Circuits：1
- Ratio - Input:Output：1:08
- Differential - Input:Output：Yes/Yes
- Input：Clock, HCSL
- Output：Clock, HCSL
- Frequency - Max：250 MHz
- Voltage - Supply：3V ~ 3.6V
- Operating Temperature：-40°C ~ 105°C (TA)
- Mounting Type：Surface Mount
- Package / Case：48-VFQFN Exposed Pad
- Supplier Device Package：48-VQFN (6x6)
- Grade：-
- Qualification：-
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Overview
The CDCDB800RSLR is an eight-output clock buffer manufactured by Texas Instruments, designed for high-speed interface applications. It operates with a maximum frequency of 250 MHz and accepts LP-HCSL differential inputs to drive eight LP-HCSL outputs. The device functions within a supply voltage range of 3 V to 3.6 V and supports an extended industrial temperature range from -40°C to +105°C. Key electrical specifications include a maximum propagation delay of 3 ns and a duty cycle capability of up to 60%. Packaged in a 48-pin VQFN (6x6 mm) format, it consumes approximately 7.8 mA during operation.
Feature Summary
- Eight LP-HCSL outputs driven by a single LP-HCSL input
- Maximum operating frequency of 250 MHz
- Low propagation delay of 3 ns maximum
- Operates on 3 V to 3.6 V supply voltage
Applications
- PCIe Gen reference clock distribution
- Server and storage system clocking
- High-speed interface synchronization
Procurement Notes
Verify the specific suffix 'LR' against the manufacturer datasheet to confirm tape and reel packaging details and moisture sensitivity level. Ensure the 48-VQFN footprint matches the target PCB design. Confirm RoHS compliance status through official documentation before procurement.
Selection Notes
Select this component when an eight-channel LP-HCSL buffer is required for frequencies up to 250 MHz. It is suitable for designs needing low skew and minimal propagation delay. Verify that the 3.3 V nominal supply voltage aligns with the 3 V to 3.6 V operational range specified for this part.
Part Context
This device belongs to the CDCDB800 series of clock buffers from Texas Instruments. It serves as a solution for distributing reference clocks in systems requiring multiple synchronized outputs. The VQFN-48 package allows for compact board layouts in dense electronic assemblies.
Replacement Considerations
Check for direct pin-to-pin replacements within the same family, such as other CDCDB800 variants, ensuring output types and frequency limits match the application requirements.
