The 810N322I-02 device uses IDT's fourth generation FemtoClock® NG technology for optimal high clock frequency and low phase noise performance, combined with a low power consumption and high power supply noise rejection. The 810N322I-02 is a PLL based synchronous multiplier that is optimized for Ethernet to SONET/PDH clock jitter attenuation and frequency translation. The 810N322I-02 is a fully integrated Phase Locked loop utilizing a FemtoClock NG Digital VCXO that provides the low jitter, high frequency SONET/PDH output clock that easily meets OC-48 jitter requirements. This VCXO technology simplifies PLL design by replacing the pullable crystal requirement of analog VCXOs with a fixed 27MHz generator crystal. Jitter attenuation down to 9Hz is provided by an external loop filter. Pre-divider and output divider multiplication ratios are selected using device selection control pins. The multiplication ratios are optimized to support most common clock rates used in PDH, SONET and Ethernet applications. The device requires the use of an external, inexpensive fundamental mode 27MHz crystal. The device is packaged in a space-saving 32-VFQFN package and supports commercial temperature range.

特長

  • Fourth generation FemtoClock® NG technology
  • Two LVCMOS outputs
  • Each output supports independent frequency selection at 19.44MHz, 77.76MHz, 155.52MHz and 622.08MHz
  • Two differential inputs support the following input types: LVPECL, LVDS, LVHSTL, HCSL
  • Accepts input frequencies from 8kHz to 156.25MHz including 8kHz,19.44MHz, 25MHz, 62.5MHz, 77.76MHz, 125MHz, 155.52MHz and 156.25MHz
  • Crystal interface designed for a 27MHz, 10pF crystal
  • Attenuates the phase jitter of the input clock by using a low-cost fundamental mode crystal
  • Customized settings for jitter attenuation and reference tracking using an external loop filter connection
  • FemtoClock NG frequency multiplier provides low jitter, high frequency output
  • Absolute pull range: ±50ppm
  • Power supply noise rejection (PSNR): -55 (typical)
  • FemtoClock NG VCXO frequency: 2488.32MHz
  • RMS phase jitter @ 155.52MHz, using a 27MHz crystal (12kHz '- 20MHz):0.624ps (typical)
  • 3.3V supply voltage
  • -40°C to 85°C ambient operating temperature
  • Available in lead-free (RoHS 6) package

製品選択

発注型名 Part Status Pkg. Type Lead Count (#) Temp. Grade Pb (Lead) Free Carrier Type パッケージ 購入/サンプル
810N322BKI-02LF Obsolete VFQFPN 32 I はい Tray Package Info
Availability
810N322BKI-02LFT Obsolete VFQFPN 32 I はい Reel Package Info
Availability

ドキュメント&ダウンロード

タイトル 他の言語 分類 形式 サイズ 日付
データシート
810N322I-02 Final Data Sheet Datasheet PDF 573 KB
アプリケーションノート、ホワイトペーパー
AN-828 Termination - LVPECL Application Note PDF 322 KB
AN-831 The Crystal Load curve Application Note PDF 395 KB
AN-842 Thermal Considerations in Package Design and Selection Application Note PDF 495 KB
AN-840 Jitter Specifications for Timing Signals Application Note PDF 442 KB
AN-838 Peak-to-Peak Jitter Calculations Application Note PDF 115 KB
AN-839 RMS Phase Jitter Application Note PDF 233 KB
AN-836 Differential Input to Accept Single-ended Levels Application Note PDF 120 KB
AN-835 Differential Input with VCMR being VIH Referenced Application Note PDF 160 KB
AN-830 Quartz Crystal Drive Level Application Note PDF 143 KB
AN-827 Application Relevance of Clock Jitter Application Note PDF 1.15 MB
AN-815 Understanding Jitter Units Application Note PDF 565 KB
AN-802 Crystal-Measuring Oscillator Negative Resistance Application Note PDF 136 KB
AN-801 Crystal-High Drive Level Application Note PDF 202 KB
AN-806 Power Supply Noise Rejection Application Note PDF 438 KB
AN-805 Recommended Ferrite Beads Application Note PDF 121 KB
PCN / PDN
PCN# : A1904-01 Add Greatek, Taiwan as an Alternate Assembly Facility Product Change Notice PDF 983 KB
PDN# : TP-19-06 Manufacturing Discontinuance Notice Product Discontinuation Notice PDF 1016 KB
PCN# : A1611-02 Add JCET China as Alternate Assembly and Change of Material Set at Alternate Assembly Location Product Change Notice PDF 583 KB
PCN# : A1511-01(R1) Add SPEL India as Alternate Assembly Location Product Change Notice PDF 596 KB
PCN# : A1511-01 Add SPEL India as Alternate Assembly Location Product Change Notice PDF 544 KB
PCN# : W1308-01 Change of Passivation Thickness Product Change Notice PDF 941 KB
その他資料
Timing Solutions Products Overview Overview PDF 4.11 MB
IDT Clock Generation Overview (Japanese) English Overview PDF 2.19 MB
IDT Clock Distribution Overview (Japanese) English Overview PDF 7.79 MB
IDT Clock Generation Overview (Japanese) English Overview PDF 2.19 MB
IDT Clock Distribution Overview (Japanese) English Overview PDF 7.79 MB