概要
説明
The 840N202I is a highly flexible FemtoClock® NG general purpose, low phase noise Frequency Translator / Synthesizer with alarm and monitoring functions suitable for networking and communications applications. It is able to generate any output frequency in the 1MHz - 250MHz range (see Table 3 for details). A wide range of input reference clocks and a range of low- cost fundamental mode crystal frequencies may be used as the source for the output frequency. The 840N202I has three operating modes to support a very broad spectrum of applications: Frequency Synthesizer , High-Bandwidth Frequency Translator and a Low-Bandwidth Frequency Translator.
This device provides two factory-programmed default power-up configurations burned into One-Time Programmable (OTP) memory. The configuration to be used is selected by the CONFIG pin. The two configurations are specified by the customer and are programmed by IDT during the final test phase from an on-hand stock of blank devices. The two configurations may be completely independent of one another.
To see other devices in this product family, visit the Universal Frequency Translators page.
特長
- Fourth generation FemtoClock® NG technology
- Universal Frequency Translator/Frequency Synthesizer
- Two LVCMOS/LVTTL outputs
Both outputs may be set to use 2.5V or 3.3V output levels
Programmable output frequency: 1.0MHz to 250MHz - Two differential inputs support the following input types: LVPECL, LVDS, LVHSTL, HCSL
- Input frequency range: 8kHz - 710MHz
- Crystal input frequency range: 16MHz - 40MHz
- Two factory-set register configurations for power-up default state
Power-up default configuration pin or register selectable
Configurations customized via One-Time Programmable ROM
Settings may be overwritten after power-up via I2C
I2C Serial interface for register programming - RMS phase jitter at 125MHz, using a 40MHz crystal (12kHz - 20MHz): 616fs (typical), Low Bandwidth Mode (FracN)
- Output supply voltage modes:
VDD/VDDA/VDDO
3.3V/3.3V/3.3V
3.3V/3.3V/2.5V
2.5V/2.5V/2.5V - -40°C to 85°C ambient operating temperature
- Lead-free (RoHS 6) packaging
製品比較
アプリケーション
設計・開発
モデル
ECADモデル
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Processing table
| VFQFPN | 40 | I | Yes | Tray | ||
| VFQFPN | 40 | I | Yes | Reel | ||
| VFQFPN | 40 | I | Yes | Tray | ||
| VFQFPN | 40 | I | Yes | Reel |
Tips for Using This Parametric Table:
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- Export button in header: Export the filtered results of the table to an Excel document
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- 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
ビデオ&トレーニング
ニュース＆ブログ
| Benefits of a Point-of-Use Clock for Jitter Optimization | ブログ | 2021年4月27日 |