Overview
Description
The 8402I is a general purpose, Crystal-to-LVCMOS/LVTTL High Frequency Synthesizer. The 8402I has a selectable TEST_CLK or crystal inputs. 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 interfaces to the configuration logic. The low phase noise characteristics of the 8402I make it an ideal clock source for Gigabit Ethernet and SONET applications.
Features
- Two LVCMOS/LVTTL outputs
- Selectable crystal oscillator interface
- or LVCMOS/LVTTL TEST_CLK
- Output frequency range: 15.625MHz to 350MHz
- Crystal input frequency range: 12MHz to 40MHz
- VCO range: 250MHz to 700MHz
- Parallel or serial interface for programming counter and output dividers
- RMS period jitter: 30ps (maximum)
- Cycle-to-cycle jitter: 100ps (maximum)
- Full 3.3V or mixed 3.3V core/2.5V output supply voltage
- -40°C to 85°C ambient operating temperature
- Available in lead-free RoHS-compliant package
- For replacement device us 840N202CKI-dddLF
Comparison
Applications
Design & Development
Models
ECAD Models
Schematic symbols, PCB footprints, and 3D CAD models from SamacSys can be found by clicking on products in the Product Options table. If a symbol or model isn't available, it can be requested directly from the website.
Processing table
| VFQFPN | 32 | I | Yes | Tray | ||
| TQFP | 32 | I | Yes | Tray |
Tips for Using This Parametric Table:
- Hide Filters button in header: Collapse or expands filters
- Column sort buttons in header: Sort Column alphabetically / numerically descending or ascending
- Reset button in header: Reset all filters to the page default
- Full Screen button in header: Expand the table to full screen view (user must close out of full screen before they can interact with rest of page)
- Export button in header: Export the filtered results of the table to an Excel document
- Filter parts search bar in header: Type to filter table results by part number
- Hide column button in column headers: Select to hide columns in table
- AND / OR toggle switches in header: Toggles the logic of this particular filter to be “AND” or “OR” logic for filtering results
- Multiselect checkboxes at beginning of each row in table: Select these checkboxes to compare products against each other
- Document icon next to product name in row: View the featured document for this product
- Chip icon next to the right of the document icon in row: View the block diagram for this product
- Cart icon to the right of the chip icon: Indicates that samples are available for this product