Overview
The ADCLK950BCPZ from Analog Devices Inc. is an ultrafast clock fanout 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 applications where timing accuracy is critical. 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 inputs support various signal types, including dc-coupled LVPECL, CML, 3.3 V CMOS (single-ended), and ac-coupled 1.8 V CMOS, LVDS, and LVPECL. The device includes 10 full-swing emitter coupled logic (ECL) output drivers and operates over a standard industrial temperature range of −40°C to +85°C.
Key Specifications
| Parameter | Symbol | Min | Typ | Max | Unit | Test Conditions/Comments |
|---|---|---|---|---|---|---|
| Supply Voltage Requirement | VCC − VEE | 2.97 | 3.3 | 3.63 | V | VCC − VEE = 3.3 V ± 10% |
| Positive Supply Current | IVCC | 346 | 390 | mA | VCC − VEE = 3.3 V ± 10% | |
| Negative Supply Current | IVEE | 106 | 130 | mA | VCC − VEE = 3.3 V ± 10% | |
| Input Common Mode Voltage | VICM | VEE + 1.5 | VCC − 0.1 | V | ||
| Input Differential Range | VID | 0.4 | 3.4 | V p-p | ±1.7 V between input pins | |
| Maximum Output Frequency | 4800 | MHz | ||||
| Operating Temperature | -40 | +85 | °C | |||
| Package Type | LFCSP-40 |
Key Features
- Ultrafast clock fanout buffer with low jitter performance
- Two selectable differential inputs via the IN_SEL control pin
- Supports dc-coupled LVPECL, CML, 3.3 V CMOS (single-ended), and ac-coupled 1.8 V CMOS, LVDS, and LVPECL inputs
- 10 full-swing emitter coupled logic (ECL) output drivers
- High-reliability clock generation and rapid clock multiplication
- Ultra-low power consumption
- Phase-locked loop technology
Applications
- High-speed data transfer
- Advanced signal processing
- Networking equipment
- Telecommunications systems
- High-speed data processing units
- Digital audio applications
Q & A
- What is the ADCLK950BCPZ used for?
The ADCLK950BCPZ is used as an ultrafast clock fanout buffer for high-speed applications requiring low jitter.
- What types of inputs does the ADCLK950BCPZ support?
The device supports dc-coupled LVPECL, CML, 3.3 V CMOS (single-ended), and ac-coupled 1.8 V CMOS, LVDS, and LVPECL inputs.
- How many output drivers does the ADCLK950BCPZ have?
The ADCLK950BCPZ features 10 full-swing emitter coupled logic (ECL) output drivers.
- What is the maximum output frequency of the ADCLK950BCPZ?
The maximum output frequency is 4800 MHz.
- What is the operating temperature range of the ADCLK950BCPZ?
The device operates over a temperature range of −40°C to +85°C.
- What package type is the ADCLK950BCPZ available in?
The ADCLK950BCPZ is available in a 40-lead LFCSP package.
- What are some common applications of the ADCLK950BCPZ?
Common applications include high-speed data transfer, advanced signal processing, networking equipment, telecommunications systems, and high-speed data processing units.
- How does the IN_SEL control pin function?
The IN_SEL control pin allows for the selection between two differential inputs (CLK0 and CLK1).
- What is the significance of the VREFx pin?
The VREFx pin is used for biasing ac-coupled inputs.
- What are the power supply requirements for the ADCLK950BCPZ?
The device requires a supply voltage of 2.97 V to 3.63 V (VCC − VEE).
