Overview
The CDCLVP1204RGTR is a highly versatile, low additive jitter clock buffer produced by Texas Instruments. This device is designed to generate four copies of LVPECL clock outputs from one of two selectable LVPECL, LVDS, or LVCMOS/LVTTL inputs. It is particularly suited for various communication applications due to its high performance and low jitter characteristics. The CDCLVP1204 features a maximum clock frequency of up to 2 GHz and is characterized for operation over an industrial temperature range of –40°C to +85°C.
Key Specifications
| Parameter | Value | Unit |
|---|---|---|
| Package | VQFN (RGT) | - |
| Pins | 16 | - |
| Operating Temperature Range | –40 to 85 | °C |
| Maximum Clock Frequency | 2 | GHz |
| Maximum Core Current Consumption | 45 | mA |
| Additive Jitter (RMS) | <100 fs (10 kHz to 20 MHz) | fs |
| Device Power Supply | 2.375 to 3.6 | V |
| Maximum Propagation Delay | 450 | ps |
| Maximum Output Skew | 15 | ps |
| LVPECL Reference Voltage (VAC_REF) | Available for capacitive-coupled inputs | - |
| ESD Protection | Exceeds 2 kV (HBM) | - |
Key Features
- 2:4 Differential Buffer
- Selectable Clock Inputs Through Control Terminal
- Universal Inputs Accept LVPECL, LVDS, and LVCMOS/LVTTL
- Four LVPECL Outputs
- Very Low Additive Jitter: <100 fs, RMS in 10-kHz to 20-MHz Offset Range
- Industrial Temperature Range: –40°C to +85°C
- Supports 105°C PCB Temperature (Measured at Thermal Pad)
- Specifically designed for driving 50-Ω transmission lines
- ESD Protection Exceeds 2 kV (HBM)
Applications
- Wireless Communications
- Telecommunications/Networking
- Medical Imaging
- Test and Measurement Equipment
Q & A
- What is the maximum clock frequency supported by the CDCLVP1204?
The CDCLVP1204 supports a maximum clock frequency of up to 2 GHz.
- What types of input signals can the CDCLVP1204 accept?
The CDCLVP1204 can accept LVPECL, LVDS, and LVCMOS/LVTTL input signals.
- How many LVPECL outputs does the CDCLVP1204 provide?
The CDCLVP1204 provides four pairs of differential LVPECL clock outputs.
- What is the typical additive jitter of the CDCLVP1204 at 156.25 MHz?
The typical additive jitter at 156.25 MHz is 48 fs, RMS.
- What is the operating temperature range of the CDCLVP1204?
The operating temperature range is –40°C to +85°C.
- Does the CDCLVP1204 support single-ended mode operation?
Yes, but for high-speed performance up to 2 GHz, differential mode is strongly recommended.
- What is the maximum propagation delay of the CDCLVP1204?
The maximum propagation delay is 450 ps.
- What is the maximum output skew of the CDCLVP1204?
The maximum output skew is 15 ps.
- Does the CDCLVP1204 have ESD protection?
Yes, the CDCLVP1204 has ESD protection that exceeds 2 kV (HBM).
- What is the recommended power supply voltage range for the CDCLVP1204?
The recommended power supply voltage range is 2.375 V to 3.6 V.
