Description:The 8442I-90 is a general purpose, dual output Crystal-to-Differential LVDS High Frequency Synthesizer. The 8442I-90 has a selectable REF_CLK or crystal input. The REF_CLK input accepts LVCMOS or LVTTL input levels and translates them to LVDS levels. The VCO operates at a frequency range of 250MHz to 700MHz. The VCO frequency is programmed in steps equal to the value of the input reference or crystal frequency. The VCO and output frequency can be programmed using the serial or parallel interface to the conf
Renesas provides a recommended PCB layout guide in their application note (R01AN3601EU0100) which includes thermal design considerations, such as thermal vias, copper pours, and component placement.
Renesas recommends following their thermal design guidelines, using a heat sink if necessary, and ensuring proper airflow around the device. Additionally, the device's thermal protection feature can be enabled to prevent overheating.
Renesas recommends using a low-ESR ceramic capacitor (CIN) with a value between 1uF to 10uF, and a high-quality, low-ESR electrolytic capacitor (COUT) with a value between 10uF to 100uF, depending on the specific application requirements.
Renesas recommends checking the EN pin's voltage level, ensuring it is within the specified range, and verifying that the pin is not being driven by multiple sources. Additionally, checking the device's status pins (e.g., PG) can help identify the root cause of the issue.
Operating the device outside of its recommended operating conditions can lead to reduced performance, decreased reliability, and potentially even damage to the device. Renesas recommends adhering to the specified operating conditions to ensure optimal performance and reliability.
Trust Checks
This model has been built in collaboration with the manufacturer.
Manufacturer Collaborated
This model has been verified by system checks.
System Verified
This model has been reviewed by community users.
Community Approved
Sponsored
8442AKI-90LF Overview
Use the download button to access the 8442AKI-90LF schematic symbol, PCB footprint, and 3D model.
To find more CAD model downloads similar to this part, try a partial part number search, like 8442A,
or try a keyword search, such as Clock Generators
