Overview
The CDCP1803RGET, produced by Texas Instruments, is a 1:3 LVPECL clock buffer with a programmable divider. This component is designed to distribute one pair of differential clock inputs to three pairs of LVPECL differential clock outputs, ensuring minimal skew for efficient clock distribution. It is specifically tailored for driving 50-Ω transmission lines and operates within a temperature range of –40°C to 85°C. The CDCP1803RGET is packaged in a 24-terminal QFN package (4 mm × 4 mm) and supports various differential and single-ended signaling standards, including LVDS, HSTL, CML, VML, SSTL-2, LVTTL, and LVCMOS.
Key Specifications
| Parameter | Value | Unit |
|---|---|---|
| Package Type | VQFN (RGE) | - |
| Number of Pins | 24 | - |
| Operating Temperature Range | –40 to 85 | °C |
| Supply Voltage Range | 3 V – 3.6 V | V |
| Signaling Rate | Up to 800 MHz | - |
| Output Skew (Typical) | 15 ps | ps |
| Input Threshold | ±75 mV | mV |
| Input Signal Types | LVDs, HSTL, CML, VML, SSTL-2, LVTTL/LVCMOS | - |
Key Features
- Distributes one differential clock input to three LVPECL differential clock outputs.
- Programmable output divider for two LVPECL outputs.
- Low-output skew of 15 ps (typical).
- Supports signaling rates up to 800 MHz LVPECL.
- Differential input stage for wide common-mode range.
- Provides VBB bias voltage output for single-ended input signals.
- Accepts various differential and single-ended signaling standards.
Applications
The CDCP1803RGET is suitable for a variety of applications requiring precise clock distribution and signal integrity. These include:
- Clock distribution in high-speed data acquisition systems.
- Telecommunication equipment where synchronized clock signals are crucial.
- High-performance computing and server systems requiring low-skew clock signals.
- Test and measurement equipment where accurate timing is essential.
Q & A
- What is the primary function of the CDCP1803RGET?
The CDCP1803RGET is a 1:3 LVPECL clock buffer with a programmable divider, designed to distribute one differential clock input to three LVPECL differential clock outputs.
- What is the operating temperature range of the CDCP1803RGET?
The CDCP1803RGET operates within a temperature range of –40°C to 85°C.
- What is the typical output skew of the CDCP1803RGET?
The typical output skew is 15 ps.
- What signaling standards does the CDCP1803RGET support?
The CDCP1803RGET supports various differential and single-ended signaling standards, including LVDS, HSTL, CML, VML, SSTL-2, LVTTL, and LVCMOS.
- How many output dividers does the CDCP1803RGET have?
The CDCP1803RGET has programmable output dividers for two LVPECL outputs.
- What is the purpose of the VBB bias voltage output?
The VBB bias voltage output is provided for single-ended input signals, serving as a common-mode voltage reference.
- What is the maximum signaling rate supported by the CDCP1803RGET?
The CDCP1803RGET supports signaling rates up to 800 MHz LVPECL.
- What type of package does the CDCP1803RGET come in?
The CDCP1803RGET is packaged in a 24-terminal QFN package (4 mm × 4 mm).
- Can the CDCP1803RGET be used in single-ended driver applications?
- What are some common applications for the CDCP1803RGET?
