Overview
The ADCLK954BCPZ from Analog Devices Inc. is an ultrafast clock fan-out buffer designed for high-speed applications requiring low jitter. Fabricated on Analog Devices' proprietary XFCB3 silicon germanium (SiGe) bipolar process, this device is ideal for various high-frequency applications. It features two selectable differential inputs via the IN_SEL control pin, each equipped with center-tapped, differential, 100 Ω on-chip termination resistors. The device supports a range of input signals including dc-coupled LVPECL, CML, 3.3V CMOS (single-ended), and ac-coupled 1.8V CMOS, LVDS, and LVPECL inputs.
Key Specifications
| Parameter | Value | Unit |
|---|---|---|
| Operating Frequency | 4.8 | GHz |
| Broadband Random Jitter | 75 | fs rms (typical at VID = 1.6V p-p, 8V/ns, VICM = 2V) |
| Propagation Delay | 210 | ps (typical at VICM = 2V, VID = 1.6V p-p) |
| Input Bias Current | 20 | µA (typical) |
| Absolute Phase Noise | -119 | dBc/Hz (typical at 100Hz offset) |
| Operating Temperature | -40 to +85 | °C |
| Supply Voltage | 3.3 | V |
| Package Style | 40-lead LFCSP | |
| Number of Inputs | 2 | |
| Number of Outputs | 12 |
Key Features
- Two selectable differential inputs via the IN_SEL control pin with center-tapped, differential, 100 Ω on-chip termination resistors.
- Supports dc-coupled LVPECL, CML, 3.3V CMOS (single-ended), and ac-coupled 1.8V CMOS, LVDS, and LVPECL inputs.
- Features 12 full-swing emitter coupled logic (ECL) output drivers.
- Low jitter performance with broadband random jitter of 75 fs rms typical.
- Operating frequency up to 4.8 GHz.
- Propagation delay of 210 ps typical.
- VREFx pin available for biasing ac-coupled inputs.
- Designed for high-speed applications with minimal added random jitter over a wide input slew rate range.
Applications
- Low jitter clock distribution.
- Clock and data signal restoration.
- Level translation.
- Wireless communications.
- Wired communications.
- Medical and industrial imaging.
- Automated Test Equipment (ATE).
- High-performance instrumentation.
Q & A
- What is the operating frequency of the ADCLK954BCPZ?
The operating frequency of the ADCLK954BCPZ is up to 4.8 GHz.
- What type of inputs does the ADCLK954BCPZ support?
The device supports dc-coupled LVPECL, CML, 3.3V CMOS (single-ended), and ac-coupled 1.8V CMOS, LVDS, and LVPECL inputs.
- How many output drivers does the ADCLK954BCPZ have?
The ADCLK954BCPZ features 12 full-swing emitter coupled logic (ECL) output drivers.
- What is the typical broadband random jitter of the ADCLK954BCPZ?
The typical broadband random jitter is 75 fs rms at VID = 1.6V p-p, 8V/ns, VICM = 2V.
- What is the propagation delay of the ADCLK954BCPZ?
The propagation delay is 210 ps typical at VICM = 2V, VID = 1.6V p-p.
- What is the operating temperature range of the ADCLK954BCPZ?
The operating temperature range is -40°C to +85°C.
- What type of package does the ADCLK954BCPZ come in?
The device is available in a 40-lead LFCSP package.
- What is the supply voltage for the ADCLK954BCPZ?
The supply voltage is 3.3 V.
- What are some common applications of the ADCLK954BCPZ?
Common applications include low jitter clock distribution, clock and data signal restoration, level translation, wireless communications, and high-performance instrumentation.
- How many inputs does the ADCLK954BCPZ have?
The device has two selectable differential inputs.
