Overview
The CDCLVP1204RGTT, produced by Texas Instruments, is a highly versatile, low additive jitter buffer designed for various communication applications. It can generate four copies of LVPECL clock outputs from one of two selectable LVPECL, LVDS, or LVCMOS/LVTTL inputs. The device features an on-chip multiplexer (MUX) for input selection, which can be configured through a control terminal. With a maximum clock frequency of up to 2 GHz, the CDCLVP1204RGTT is ideal for demanding applications requiring low jitter and minimal output skew.
Key Specifications
| Parameter | Value | Unit |
|---|---|---|
| Package | QFN (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 V to 3.6 V | V |
| Maximum Propagation Delay | 450 | ps |
| Maximum Output Skew | 15 | ps |
| 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
- LVPECL Reference Voltage, VAC_REF, Available for Capacitive-Coupled Inputs
- Industrial Temperature Range: –40°C to +85°C
- Supports 105°C PCB Temperature (Measured at Thermal Pad)
Applications
- Wireless Communications
- Telecommunications/Networking
- Medical Imaging
- Test and Measurement Equipment
Q & A
- What is the maximum clock frequency supported by the CDCLVP1204RGTT?
The CDCLVP1204RGTT supports a maximum clock frequency of up to 2 GHz.
- What types of clock inputs can the CDCLVP1204RGTT accept?
The device can accept LVPECL, LVDS, and LVCMOS/LVTTL clock inputs.
- How many LVPECL outputs does the CDCLVP1204RGTT provide?
The device generates four pairs of differential LVPECL clock outputs.
- What is the typical additive jitter performance of the CDCLVP1204RGTT?
The additive jitter is less than 100 fs, RMS in the 10 kHz to 20 MHz offset range.
- What is the operating temperature range of the CDCLVP1204RGTT?
The device operates from –40°C to +85°C.
- Does the CDCLVP1204RGTT support single-ended or differential mode operation?
While it can operate in single-ended mode, differential mode is strongly recommended for high-speed performance up to 2 GHz.
- What is the maximum propagation delay of the CDCLVP1204RGTT?
The maximum propagation delay is 450 ps.
- What is the maximum output skew of the CDCLVP1204RGTT?
The maximum output skew is 15 ps.
- Does the CDCLVP1204RGTT have ESD protection?
Yes, it exceeds 2 kV (HBM) ESD protection.
- What is the recommended power supply voltage range for the CDCLVP1204RGTT?
The device power supply voltage range is 2.375 V to 3.6 V.
