Catalog
Precision 1:5 Low Skew/Low Jitter Buffer
Key Features
• * 3 to 1 input Multiplexer: Two inputs accept any differential (LVPECL, HCSL, LVDS, SSTL, CML, LVCMOS) or a single ended signal and the third input accepts a crystal or a single ended signal
• * Five differential LVPECL/LVDS/HCSL outputs and one LVCMOS output
• * Ultra-low additive jitter: 24fs (integration band 12kHz to 20MHz at 625MHz)
• * Supports clock frequencies from 0 to 1.6GHz
• * Supports 2.5V or 3.3V power supplies for LVPECL, LVDS or HCSL outputs
• * Supports 1.5V, 1,8V, 2.5V or 3.3V power supplies for LVCMOS output
• * Embedded Low Drop Out (LDO) Voltage regulator provides superior Power Supply Noise Rejection
• * Maximum output to output skew of 40ps
• * Device controlled via SPI or hardware pins
Description
AI
The ZL40235 is a programmable or hardware pin controlled low additive jitter, low power 3 x 5 LVPECL/HCSL/LVDS fanout buffer.
Two inputs can accept signal in differential (LVPECL, SSTL, LVDS, HSTL, CML) or single ended (LVPECL or LVCMOS) format and the third input can accept a single ended signal or it can be used to build a crystal oscillator by connecting an external crystal resonator between its XIN and XOUT pins. All the other components for building crystal oscillator are built in device such as load capacitance, series and shunt resistors.
The ZL40235 has five LVPECL/HCSL/LVDS outputs which can be powered from 3.3V or 2.5V supply. Each output can be independently enabled/disabled via SPI bus. The type of each output driver can be programmed to be LVPECL, HCSL or LVDS. Hence, the device can be configured to support application where different signal formats are needed.
The device operates from 2.5V+/-5% or 3.3V+/-5% supply. Its operation is guaranteed over the industrial temperature range -40°C to +85°C.