特長
- Provides a total of 12 outputs: 11 differential (LVPECL or LVDS) and 1 LVCMOS on 3 integer and 1 integer or FracN divider
- Supports programmable output swing – 350mV, 500mV and 750mV
- Output skew less than 45ps
- Low phase jitter:
- Integer divider (156.25MHz) : 80fs RMS phase jitter, 12kHz to 20MHz (typical)
- Fractional divider (212.5MHz) : 133fs RMS phase jitter, 12kHz to 20MHz (typical)
- Output frequencies from 10.91MHz up to 2.5GHz differential, 250MHz LVCMOS
- Flexible input options: 10MHz to 50MHz fundamental-mode crystal
- Reference input from 5MHz to 1GHz
- Programmable loop filter is 200kHz; can be setup by external capacitor
- Supports external I²C EEPROM non-volatile memory for configuration
- Select configurations may be controlled via the use of control input pins without the need for serial port access
- LVCMOS compatible I²C serial interface gives access to additional configurations either alone or in combination with the control input pins
- -40°C to +85°C ambient operating temperature
- Packaged in 64-VFQFN, lead-free RoHS (6)
- Supported by Timing Commander Software
説明
8V49NS0412は、3つの整数分周器と、整数または分数のいずれか1つの分周器、合計4つの出力分周器を備えたフレキシブルクロックジェネレータです。 8V49NS0412は、外部水晶振動子との併用により、通信、データ通信、データセンタ市場および、高性能タイミングを生成します。 このデバイスは鉛フリーの64-VFQFNパッケージで全産業用温度範囲にて動作するよう設計されています。
8V49NS0412は、多様な周波数構成と出力形式を提供し、優れた位相ノイズ性能を実現するために最適化されています。 このデバイスは、高クロック周波数と高電源ノイズ除去による低位相ノイズの最適な組み合わせを実現しています。 柔軟性とプログラムの容易性により、これらのデバイスを様々なクロックツリーに使用することができ、エンジニアリングの労力を軽減ます。 このデバイスは、I²Cインタフェースを通じてプログラム可能であり、またI²Cマスター機能をサポートしているので、外部EEPROMからレジスタ構成を読み取ることができます。 ルネサスのソフトウェアツールTiming Commander™は、デバイスの再構成を迅速かつ容易に行うことができます。
パラメータ
| 属性 | 値 |
|---|---|
| Diff. Outputs | 11 |
| Outputs (#) | 12 |
| Output Type | LVPECL, LVDS |
| Output Freq Range (MHz) | 10.91 - 2500 |
| Input Freq (MHz) | 5 - 1000 |
| Inputs (#) | 2 |
| Input Type | Crystal, HCSL, HSTL, LVDS, LVPECL, LVHSTL, LVCMOS |
| Output Banks (#) | 4 |
| Core Voltage (V) | 3.3 |
| Output Voltage (V) | 3.3 |
| Feedback Input | No |
パッケージオプション
| Pkg. Type | Pkg. Dimensions (mm) | Lead Count (#) | Pitch (mm) |
|---|---|---|---|
| VFQFPN | 9.0 x 9.0 x 0.9 | 64 | 0.5 |
適用されたフィルター
読込中
フィルター
ソフトウェア/ツール
サンプルコード
シミュレーションモデル
Description
Overview of IDT's third generation Universal Frequency Translator (UFT) family of timing devices for high-performance optical networks, wireless base stations, and 100 Gigabit Ethernet (GbE) interface applications. The new UFT devices are the industry's only single-chip programmable solutions capable of generating eight different output frequencies with less than 300 femtoseconds RMS phase jitter over the standard 12 kHz to 20 MHz integration range.
The IDT 8T49N28x UFT family of timing devices offers eight independently programmable clocking outputs with the flexibility to apply virtually any input frequency and select virtually any output frequency. The devices' high level of integration and low jitter eliminates the need for separate frequency translation, redundancy management, and jitter attenuation devices -- empowering system designers to save cost and board area by consolidating those functions into a single device. In addition, the device offers significant flexibility in configuration and ease of programmability with IDT's Timing Commander software, making it useful in a variety of sockets and modes of operation with minimal design effort.
Presented by Ian Dobson, Director of System Architecture at IDT. Visit the Universal Frequency Translators page for information.
IDT's innovative support tool, Timing Commander™, expedites development cycles by empowering customers to program sophisticated timing devices with an intuitive and flexible Graphical User Interface. IDT's Timing Commander is a Windows™-based platform designed to serve user-friendly configuration interfaces, known as personalities, for various IDT products and product families. With a few simple clicks, the user is presented with a comprehensive, interactive block diagram offering the ability to modify desired input values, output values, and other configuration settings. The software automatically makes calculations, reports status monitors, and prepares register settings without the need to reference a datasheet. The tool also automatically loads the configuration settings over USB to an IDT evaluation board for immediate application in the circuit. Once the device has been configured and tuned for optimal system performance, the configuration file can be saved for factory-level programming prior to shipment. Presented by Steven Gutierrez, Senior Product Application Engineer at IDT.