Overview
The CDCLVP1208RHDT is a highly versatile, low additive jitter buffer produced by Texas Instruments. This device is designed to generate eight copies of LVPECL clock outputs from one of two selectable LVPECL, LVDS, or LVCMOS inputs. It features a maximum clock frequency of up to 2 GHz, making it suitable for a variety of demanding communication applications. The CDCLVP1208 includes an on-chip multiplexer (MUX) that allows easy selection of one of the two inputs through a control terminal. The device is characterized by its low additive jitter performance and minimal output skew, ensuring precise timing and synchronization.
Key Specifications
| Parameter | Value | Unit |
|---|---|---|
| Package | VQFN (RHD) | - |
| Pins | 28 | - |
| Operating Temperature Range | -40 to 85 | °C |
| Maximum Clock Frequency | 2 GHz | - |
| Maximum Core Current Consumption | 73 mA | - |
| Additive RMS Jitter (typical) | < 100 fs, rms | - |
| Output Skew (maximum) | 20 ps | - |
| Device Power Supply | 2.375 V to 3.6 V | - |
| Maximum Propagation Delay | 450 ps | - |
| LVPECL Reference Voltage, V_AC_REF | Available for Capacitive-Coupled Inputs | - |
| ESD Protection | Exceeds 2 kV (HBM) | - |
Key Features
- 2:8 Differential Buffer
- Selectable Clock Inputs Through Control Terminal
- Universal Inputs Accept LVPECL, LVDS, and LVCMOS/LVTTL
- Eight LVPECL Outputs
- Very Low Additive Jitter: <100 fs, rms in 10 kHz to 20 MHz Offset Range
- Maximum Output Skew: 20 ps
- LVPECL Reference Voltage, V_AC_REF, Available for Capacitive-Coupled Inputs
- Industrial Temperature Range: –40°C to 85°C
- Supports 105°C PCB Temperature (Measured with a Thermal Pad)
- ESD Protection Exceeds 2 kV (HBM)
- Available in 5-mm × 5-mm QFN-28 (RHD) Package
Applications
- Telecommunications and Networking
- Medical Imaging
- Test and Measurement Equipment
- Wireless Communications
- General-Purpose Clocking
Q & A
- Q: What is the maximum clock frequency of the CDCLVP1208RHDT?
A: The maximum clock frequency of the CDCLVP1208RHDT is up to 2 GHz.
- Q: What types of inputs can the CDCLVP1208RHDT accept?
A: The CDCLVP1208RHDT can accept LVPECL, LVDS, and LVCMOS/LVTTL inputs.
- Q: How many LVPECL outputs does the CDCLVP1208RHDT provide?
A: The CDCLVP1208RHDT provides eight pairs of differential LVPECL clock outputs.
- Q: What is the typical additive jitter performance of the CDCLVP1208RHDT?
A: The typical additive jitter performance is less than 100 fs, rms in the 10 kHz to 20 MHz offset range.
- Q: What is the maximum output skew of the CDCLVP1208RHDT?
A: The maximum output skew is 20 ps.
- Q: What is the operating temperature range of the CDCLVP1208RHDT?
A: The operating temperature range is –40°C to 85°C.
- Q: Does the CDCLVP1208RHDT have ESD protection?
A: Yes, the CDCLVP1208RHDT has ESD protection that exceeds 2 kV (HBM).
- Q: What package type is the CDCLVP1208RHDT available in?
A: The CDCLVP1208RHDT is available in a 5-mm × 5-mm QFN-28 (RHD) package.
- Q: What is the maximum propagation delay of the CDCLVP1208RHDT?
A: The maximum propagation delay is 450 ps.
- Q: Can the CDCLVP1208RHDT support high-speed data transmission?
A: Yes, the CDCLVP1208RHDT is designed for high-speed data transmission and can handle frequencies up to 2 GHz.
