The 2305B is a high-speed phase-lock loop (PLL) clock buffer, designed to address high-speed clock distribution applications. The zero delay is achieved by aligning the phase between the incoming clock and the output clock, operable within the range of 10 to 133MHz. The 2305B is an 8-pin version of the 2309B. The 2305B accepts one reference input, and drives out five low skew clocks. The -1H version of this device operates, up to 133MHz frequency and has a higher drive than the -1 device. All parts have on-chip PLLs which lock to an input clock on the REF pin. The PLL feedback is on-chip and is obtained from the CLKOUT pad. In the absence of an input clock, the 2305B enters power down. In this mode, the device will draw less than 25μA, the outputs are tri-stated, and the PLL is not running, resulting in a significant reduction of power. The 2305B is characterized for both Industrial and Commercial operation.

Features

  • Phase-Lock Loop Clock Distribution 
  • 10MHz to 133MHz operating frequency
  • Distributes one clock input to one bank of five outputs
  • Zero Input-Output Delay
  • Output Skew < 250ps
  • Low jitter <175 ps cycle-to-cycle
  • 50ps typical cycle-to-cycle jitter (15pF, 66MHz)
  • 2305B-1 for Standard Drive
  • 2305B-1H for High Drive
  • No external RC network required
  • Operates at 3.3V VDD
  • Power down mode
  • Available in SOIC and TSSOP packages

Product Options

下单器件 ID Part Status Pkg. Code Pkg. Type Lead Count (#) Temp. Grade Pb (Lead) Free Carrier Type Buy Sample
2305B-1DCG Active DCG8 SOIC 8 C Yes Tube
Availability
2305B-1DCG8 Active DCG8 SOIC 8 C Yes Reel
Availability
2305B-1DCGI Active DCG8 SOIC 8 I Yes Tube
Availability
2305B-1DCGI8 Active DCG8 SOIC 8 I Yes Reel
Availability
2305B-1HDCG Active DCG8 SOIC 8 C Yes Tube
Availability
2305B-1HDCG8 Active DCG8 SOIC 8 C Yes Reel
Availability
2305B-1HDCGI Active DCG8 SOIC 8 I Yes Tube
Availability
2305B-1HDCGI8 Active DCG8 SOIC 8 I Yes Reel
Availability

技术资料

文档标题 他の言語 文档类型 文档格式 文件大小
数据手册与勘误表
2305B Datasheet Datasheet PDF 188 KB
应用指南 &白皮书
AN-828 Termination - LVPECL Application Note PDF 229 KB
AN-845 Termination - LVCMOS Application Note PDF 62 KB
AN-844 Termination - AC Coupling Clock Receivers Application Note PDF 82 KB
AN-842 Thermal Considerations in Package Design and Selection Application Note PDF 403 KB
AN-840 Jitter Specifications for Timing Signals Application Note PDF 349 KB
AN-834 Hot-Swap Recommendations Application Note PDF 67 KB
AN-827 Application Relevance of Clock Jitter Application Note PDF 1.06 MB
AN-815 Understanding Jitter Units Application Note PDF 476 KB
AN-805 Recommended Ferrite Beads Application Note PDF 38 KB
System Applications and Design Guidelines with IDT’s Zero-Delay Buffers Application Note PDF 245 KB
PCN / PDN
PDN# : CQ-17-04(R1) Product Discontinuance Notice Product Discontinuation Notice PDF 606 KB
PDN# : CQ-17-04 Product Discontinuance Notice Product Discontinuation Notice PDF 599 KB
PCN# : A1602-01(R1) Add Greatek Taiwan as Alternate Assembly Product Change Notice PDF 611 KB
PCN# : A1602-01 Add Greatek Taiwan as Alternate Assembly Product Change Notice PDF 611 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# : A1208-01R1 Gold to Copper Wire Product Change Notice PDF 254 KB
PCN# : A1208-06 Changed of Assembly Location and Crystal Product Change Notice PDF 1.06 MB
PCN# : A-0605-05 AIT as Alternate Assembly Facility for SOIC/QSOP/SSOP/TSSOP/PDIP Product Change Notice PDF 298 KB
PCN#: TB-0504-01, Transfer Test & Backend from IDT-Manila to IDT Product Change Notice PDF 35 KB
其它
Timing Solutions Products Overview Overview PDF 4.11 MB
IDT Clock Generation Overview 日本語 Overview PDF 1.83 MB
IDT Clock Distribution Overview 日本語 Overview PDF 3.79 MB