Overview
The ADCLK854BCPZ is a low-power clock fanout buffer designed by Analog Devices Inc. This device is optimized for low jitter and low power operation, making it suitable for a variety of high-performance applications. It features two selectable differential inputs and can be configured to provide up to 12 LVDS (1.2 GHz) or 24 CMOS (250 MHz) outputs. The ADCLK854BCPZ is housed in a 48-pin LFCSP package and operates on a 1.8 V power supply.
Key Specifications
| Parameter | Symbol | Min | Typ | Max | Unit | Conditions |
|---|---|---|---|---|---|---|
| Output Rise/Fall Time (LVDS) | tR, tF | 135 | 235 | - | ps | 20% to 80% measured differentially |
| Propagation Delay, Clock-to-LVDS Output | tPD | 1.5 | 2.0 | 2.7 | ns | VICM = VREF, VID = 0.5 V |
| Output Skew (LVDS Outputs in the Same Bank) | - | - | 50 | - | ps | - |
| Integrated Random Jitter (12 kHz to 20 MHz) | - | - | 54 | - | fs rms | - |
| Power Supply Voltage | VS | 1.71 | 1.8 | 1.89 | V | - |
| Power Consumption per Channel (100 MHz operation) | - | - | 12 | - | mW | - |
Key Features
- Two selectable differential inputs accepting various logic levels including LVPECL, LVDS, HSTL, CML, and more.
- Selectable LVDS/CMOS outputs with configurations up to 12 LVDS (1.2 GHz) or 24 CMOS (250 MHz) outputs.
- Low power consumption: up to 12 mW per channel at 100 MHz operation.
- Low jitter performance: 54 fs rms integrated jitter (12 kHz to 20 MHz).
- Sleep mode feature via the SLEEP pin to power down the device.
- Pin programmable control for output configuration.
- 1.8 V power supply with recommended bypass capacitance for stable operation.
- Exposed metal paddle for thermal enhancement and electrical connection.
Applications
- Low jitter clock distribution.
- Clock and data signal restoration.
- Level translation.
- Wireless communications.
- Wired communications.
- Medical and industrial imaging.
- ATE (Automated Test Equipment) and high-performance instrumentation.
Q & A
- What is the maximum frequency for LVDS outputs on the ADCLK854BCPZ?
The ADCLK854BCPZ can support up to 1.2 GHz for LVDS outputs.
- How many output configurations are possible with the ADCLK854BCPZ?
The device can be configured to provide up to 12 LVDS or 24 CMOS outputs, including combinations of both.
- What is the power supply voltage requirement for the ADCLK854BCPZ?
The device operates on a 1.8 V power supply with a tolerance of ±5% (1.71 V to 1.89 V).
- How does the sleep mode feature work on the ADCLK854BCPZ?
The sleep mode is enabled via the SLEEP pin, which powers down the device when activated.
- What is the typical propagation delay for clock-to-LVDS output on the ADCLK854BCPZ?
The typical propagation delay is 2.0 ns.
- What type of package does the ADCLK854BCPZ come in?
The device is housed in a 48-pin LFCSP package.
- How much power does the ADCLK854BCPZ consume per channel at 100 MHz operation?
The device consumes up to 12 mW per channel at 100 MHz operation.
- What is the integrated random jitter performance of the ADCLK854BCPZ?
The integrated random jitter is 54 fs rms over the bandwidth of 12 kHz to 20 MHz.
- What is the purpose of the exposed metal paddle on the ADCLK854BCPZ package?
The exposed metal paddle serves as both an electrical connection and a thermal enhancement, requiring proper attachment to ground for optimal performance.
- In what applications is the ADCLK854BCPZ commonly used?
The ADCLK854BCPZ is commonly used in low jitter clock distribution, clock and data signal restoration, level translation, wireless and wired communications, medical and industrial imaging, and ATE and high-performance instrumentation.
