84330CI700MHz, Low Jitter, Crystal-to-LVPECL Frequency Synthesizer | Integrated Circuits (ICs) | 2 | Obsolete | The 84330CI is a general-purpose, single-output high-frequency synthesizer. The voltage-controlled oscillator (VCO) operates at a frequency range of 250MHz to 720MHz. The VCO and output frequency can be programmed using the serial or parallel interfaces to the configuration logic. The output can be configured to divide the VCO frequency by 1, 2, 4, and 8. Output frequency steps as small as 250kHz to 2MHz can be achieved using a 16MHz crystal depending on the output divider settings. |
843801I-24FemtoClock Crystal-to-3.3V,2.5V LVPECL 400MHz Frequency Synthesizer | Clock Generators, PLLs, Frequency Synthesizers | 1 | Obsolete | The 843801I-24 is a 400MHz frequency synthesizer. The 843801I-24 uses an 18pF parallel resonant crystal over the range of 21.5625MHz - 25.3125MHz. The 843801I-24 has excellent <1ps phase jitter performance, over the 12kHz - 20MHz integration range. The 843801I-24 is packaged in a small 8-pin TSSOP, making it ideal for use in systems with limited board space. |
843N252-45FemtoClock NG Crystal-to-3.3V LVPECL Frequency Synthesizer | Integrated Circuits (ICs) | 2 | Obsolete | The 843N252-45 is a 1 LVPECL and 1 LVCMOS output synthesizer optimized to generate Ethernet reference clock frequencies. The device uses our fourth generation FemtoClock ® NG technology for an optimum of high clock frequency and low phase noise performance, combined with low power consumption and high power supply noise rejection. Using a 25MHz parallel resonant crystal, the following frequencies can be generated: 156.25MHz and 125MHz. With a very low phase noise VCO it is targeted to achieve 0.4ps or lower typical rms phase jitter, easily meeting Ethernet jitter requirements. The 843N252-45 is packaged in a small 16-pin TSSOP package. |
| Clock/Timing | 2 | Active | |
843S06Low Voltage, Low Skew 1.244GHz PLL Clock Synthesizer | Clock/Timing | 1 | Obsolete | The 843S06 is a low voltage, low skew 3.3V LVPECL Clock Synthesizer. The device targets clock distribution in SDH/SONET telecommunication systems but is well suited for a wide range of applications requiring high performance high-speed clock synthesis. The device implements a fully integrated multiplying PLL including: |
| Clock Generators, PLLs, Frequency Synthesizers | 1 | Obsolete | |
844001AFemtoClock Crystal-to-LVDS Clock Generator | Clock/Timing | 1 | Obsolete | The 844001 is a Fibre Channel clock generator that uses an 18pF parallel resonant crystal over the range of 20.4MHz - 28.3MHz. For Fibre Channel applications, a 26.5625MHz crystal is used. The frequency select pin allows the device to generate either 106.25MHz or 212.5MHz from a 26.5625MHz crystal. To generate 187.5MHz for 12Gb Ethernet, a 23.4375MHz crystal is used. The 844001 uses our 3rd generation low phase noise VCO technology and can achieve <1ps typical rms phase jitter, easily meeting Fibre Channel and Ethernet jitter requirements. The 844001 is packaged in a small 8-pin TSSOP, making it ideal for use in systems with limited board space. |
844003I-04FemtoClock Crystal-to-LVDS Frequency Synthesizer | Integrated Circuits (ICs) | 2 | Obsolete | The 844003I-04 is a 3 differential output LVDS synthesizer designed to generate Ethernet reference clock frequencies. Using a 19.44MHz, 20MHz or 25MHz, 18pF parallel resonant crystal, the following frequencies can be generated based on the settings of four frequency select pins (DIV_SELA[1:0], DIV_SELB[1:0]): 625MHz, 622.08MHz, 312.5MHz, 250MHz, 156.25MHz, 125MHz and 100MHz. The 844003I-04 has two output banks, Bank A with one differential LVDS output pair and Bank B with two differential LVDS output pairs. The two banks have their own dedicated frequency select pins and can be independently set for the frequencies mentioned above. The 844003I-04 uses our third generation low phase noise VCO technology and can achieve 1ps or lower typical rms phase jitter, easily meeting Ethernet jitter requirements. The 844003I-04 is packaged in a 32-pin VFQFN package. |
844004I-01FemtoClock® Crystal-to-LVDS Frequency Synthesizer | Clock Generators, PLLs, Frequency Synthesizers | 1 | Obsolete | The 844004I-01 is a 4 output LVDS Synthesizer optimized to generate Ethernet reference clock frequencies. Using a 25MHz 18pF parallel resonant crystal, the following frequencies can be generated based on the 2 frequency select pins (F_SEL[1:0]): 156.25MHz, 125MHz and 62.5MHz. The 844004I-01 uses IDT's 3rd generation low phase noise VCO technology and can achieve <1ps typical rms phase jitter, easily meeting Ethernet jitter requirements. The 844004I-01 is packaged in a small 24-pin TSSOP package. |
844004I-104FemtoClock Crystal-to-LVDS Frequency Synthesizer | Clock Generators, PLLs, Frequency Synthesizers | 2 | Obsolete | The 844004I-104 is a 4 output LVDS synthesizer optimized to generate Fibre Channel reference clock frequencies. Using a 26.5625MHz 18pF parallel resonant crystal, the following frequencies can be generated based on the two frequency select pins (F_SEL[1:0]): 212.5MHz, 187.5MHz, 159.375MHz, 106.25MHz and 53.125MHz. The 844004I-104 uses our third generation low phase noise VCO technology and can achieve <1ps typical rms phase jitter, easily meeting Fibre Channel jitter requirements. The 844004I-104 is packaged in a 32-pin VFQFN package. |
