552A-01Oscillator, Multiplier And Buffer With 8 Outputs | Integrated Circuits (ICs) | 3 | Active | The 552A-01 produces 8 low-skew copies of the multiple input clock or fundamental, parallel-mode crystal. Unlike other clock drivers, these parts do not require a separate oscillator for the input. Using IDT's patented Phase-Locked Loop (PLL) to multiply the input frequency, it is ideal for generating and distributing multiple high-frequency clocks. This is a single chip used for 3 different applications: 1) 552A-01 (A mode) — an Oscillator mutiplier 2) 552A-01 (B mode) — a Dual 1:4 buffer 3) 552A-01 (C mode) — a 1:8 Oscillator buffer |
| Clock Generators, PLLs, Frequency Synthesizers | 3 | Obsolete | |
553MLow Skew 1 to 4 Clock Buffer | Clock/Timing | 3 | Active | The 553 is a low skew, single input to four output, clock buffer. Part of Renesas' ClockBlocks™ family, this is our lowest skew, small clock buffer. See the 552-02 for a 1 to 8 low skew buffer. For more than eight outputs, see the MK74CBxxx Buffalo™ series of clock drivers. Renesas makes many non-PLL and PLL based low skew output devices as well as Zero Delay Buffers to synchronize clocks. Contact us for all of your clocking needs. |
| Clock/Timing | 1 | Active | |
557-01PCI Express GEN1 Clock Source | Clock/Timing | 1 | Obsolete | The 557-01 is a clock chip designed for use in PCI Express®cards as a clock source. It provides a pair of differential outputs at 100MHz in a small 8-pin SOIC package. Using Renesas' patented Phase-Locked Loop (PLL) techniques, the device takes a 25MHz crystal input and produces HCSL (Host Clock Signal Level) differential outputs at 100MHz clock frequency. LVDS signal levels can also be supported via an alternative termination scheme. |
557-05AQuad Differential PCI-Express GEN1 Clock Source | Application Specific | 4 | Active | The 557-03 is a spread spectrum clock generator that supports PCI-Express Gen 1 and Ethernet requirements. The device is used for PC or embedded systems to substantially reduce electromagnetic interference (EMI). The device provides two differential (HCSL) spread spectrum outputs. The spread type and amount are configured via select pin. Using IDT's patented Phase-Locked Loop (PLL) techniques, the device takes a 25 MHz crystal input and produces two pairs of differential outputs at 25 MHz, 100 MHz, 125 MHz or 200 MHz clock frequencies for HCSL, and 25 MHz or 100 MHz for LVDS. |
558-01PECL/CMOS to CMOS Clock Driver | Integrated Circuits (ICs) | 1 | Obsolete | The 558-01 accepts a high speed input of either PECL or CMOS, integrates a divider of 1, 2, 3, or 4, and provides four CMOS low skew outputs. The chip also has output enables so that one, three, or all four outputs can be tri-stated. The 558-01 is a member of the IDT Clock Blocks™ family of clock generation, synchronization, and distribution devices. |
570AMultiplier and Zero Delay Buffer | Integrated Circuits (ICs) | 2 | Active | The IDT570 is a high-performance Zero Delay Buffer (ZDB) which integrates IDT's proprietary analog/digital Phase Locked Loop (PLL) techniques. The A version is recommended for 5 V designs and the B version for 3.3 V designs. The chip is part of IDT's ClockBlocks™ family, and was designed as a performance upgrade to meet today's higher speed and lower voltage requirements. The zero delay feature means that the rising edge of the input clock aligns with the rising edges of both output clocks, giving the appearance of no delay through the device. There are two outputs on the chip, one being a low-skew divide by two of the other output. The device incorporates an all-chip power down/tri-state mode that stops the internal PLL and puts both outputs into a high impedance state. The IDT570 is ideal for synchronizing outputs in a large variety of systems, from personal computers to data communications to graphIDT/video. By allowing off-chip feedback paths, the device can eliminate the delay through other devices. |
571MLow Phase Noise Zero Delay Buffer | Integrated Circuits (ICs) | 1 | Obsolete | The 571 is a high speed, high output drive, low phase noise Zero Delay Buffer (ZDB) which integrates IDT's proprietary analog/digital Phase Locked Loop (PLL) techniques. IDT introduced the world standard for these devices in 1992 with the debut of the AV9170, and updated that with the 570. The 571, part of IDT's ClockBlocks™ family, was designed to operate at higher frequencies, with faster rise and fall times, and with lower phase noise. The zero delay feature means that the rising edge of the input clock aligns with the rising edges of both outputs, giving the appearance of no delay through the device. There are two outputs on the chip, one being a low-skew divide by two of the other. The chip is ideal for synchronizing outputs in a large variety of systems, from personal computers to data communications to video. By allowing offchip feedback paths, the 571 can eliminate the delay through other devices. The use of dividers in the feedback path will enable the part to multiply by more than two. |
574MZero Delay, Low Skew Buffer | Clock Generators, PLLs, Frequency Synthesizers | 2 | Obsolete | The 574 is a low jitter, low-skew, high performance PLL-based zero delay buffer for high speed applications. Based on IDT's proprietary low jitter Phase Locked Loop (PLL) techniques, the device provides four low skew outputs at speeds up to 160 MHz at 3.3 V. When one of the outputs is connected directly to FBIN, the rising edge of each output is aligned with the rising edge of the input clock. External delay elements connected in the feedback loops will cause the outputs to occur before the inputs by the amount of propagation delay of the external element. |
