Overview
The CDCLVC1103PW is part of the CDCLVC11xx family, a series of high-performance, low-skew, general-purpose clock buffer devices from Texas Instruments. This family is designed with a modular approach, offering various fan-out configurations from 1:2 to 1:12. The CDCLVC1103PW specifically provides a 1:3 fan-out configuration, making it suitable for a wide range of applications requiring precise clock signal distribution.
The device operates at supply voltages of 3.3 V or 2.5 V and is characterized for operation over a temperature range of –40°C to 85°C. It features very low pin-to-pin skew and additive jitter, ensuring high signal integrity and reliability.
Key Specifications
| Parameter | Test Conditions | Min | Max | Unit | |
|---|---|---|---|---|---|
| Supply Voltage (VDD) | 2.5 | 3.3 | V | ||
| Maximum Clock Frequency (fmax) at 3.3 V | 250 | MHz | |||
| Maximum Clock Frequency (fmax) at 2.5 V | 180 | MHz | |||
| Operating Temperature Range | –40 | 85 | °C | ||
| Pin-to-Pin Skew (tsk(o)) | Equal load of each output | 50 | ps | ||
| Additive Jitter | < 100 | fs | |||
| Propagation Delay (tPLH, tPHL) | CLKIN to Yn | 0.8 | 2.0 | ns | |
| Output Rise and Fall Time (tr/tf) | 20%–80% (VOH - VOL) | 0.3 | 0.8 | ns | |
| Package Type | TSSOP (14) | ||||
| Body Size (Nominal) | 5.00 mm × 4.40 mm |
Key Features
- High-performance 1:3 LVCMOS clock buffer with low skew and low additive jitter.
- Very low pin-to-pin skew (< 50 ps) and very low additive jitter (< 100 fs).
- Operates at supply voltages of 3.3 V or 2.5 V.
- Maximum clock frequency of 250 MHz at 3.3 V and 180 MHz at 2.5 V.
- Operating temperature range of –40°C to 85°C.
- Asynchronous output enable control (1G) to switch outputs into a low state when 1G is low.
- Available in 14-pin TSSOP package.
- Pin-compatible with other devices in the CDCLVC11xx family for easy handling.
Applications
The CDCLVC1103PW is suitable for various general-purpose communication, industrial, and consumer applications where precise clock signal distribution is critical. It can be used in systems requiring low jitter and low skew, such as:
- Backplane applications.
- FPGA and CPU clock distribution.
- PLL (Phase-Locked Loop) systems.
- High-speed data transmission systems.
Q & A
- What is the maximum clock frequency of the CDCLVC1103PW at 3.3 V?
The maximum clock frequency at 3.3 V is 250 MHz.
- What is the operating temperature range of the CDCLVC1103PW?
The operating temperature range is –40°C to 85°C.
- What is the pin-to-pin skew of the CDCLVC1103PW?
The pin-to-pin skew is less than 50 ps.
- How does the asynchronous output enable control work?
The outputs can be disabled by driving the asynchronous output enable pin (1G) low.
- What package type is the CDCLVC1103PW available in?
The CDCLVC1103PW is available in a 14-pin TSSOP package.
- What is the body size of the TSSOP package?
The body size is 5.00 mm × 4.40 mm.
- Can unused outputs be left floating?
Yes, unused outputs can be left floating to reduce overall system component cost.
- What is the typical static device current at 3.3 V?
The typical static device current at 3.3 V is 6 mA.
- How is the power consumption of the device calculated?
The power consumption is the sum of static power and dynamic power, calculated using the formula: Pdev = Pstat + n (Pdyn + PCload).
- What are some typical applications of the CDCLVC1103PW?
Typical applications include backplane applications, FPGA and CPU clock distribution, PLL systems, and high-speed data transmission systems.
