AD9552BCPZ-REEL7

AD9552 is an oscillator frequency upconverter. It is a fractional-N phase locked loop (PLL) based clock generator designed specifically to replace high frequency crystal oscillators and resonators. The device employs a sigma delta (Σ-Δ) modulator (SDM) to accommodate fractional frequency synthesis. The user supplies an input reference signal by connecting a single-ended clock signal directly to the REF pin or by connecting a crystal resonator across the XTAL pins. It is pin programmable, providing one of 64 standard output frequencies based on one of eight common input frequencies. Application includes cost effective replacement of high frequency VCXO, OCXO, and SAW resonators, extremely flexible frequency translation with low jitter for SONET/SDH (including FEC), 10Gb Ethernet, fibre, channel, and DRFI/DOCSIS, high-definition video frequency translation, wireless infrastructure, test and measurement (including handheld devices).

• Converts a low frequency input reference signal to a high frequency output signal
• Preset pin programmable frequency translation ratios
• Arbitrary frequency translation ratios via SPI port, on-chip VCO
• Accepts a crystal resonator and/or an external oscillator as a reference frequency source
• Secondary output (either integer-related to the primary output or a copy of the reference input)
• SPI-compatible, 3-wire programming interface
• Supply voltage range from 3.135 to 3.465V (VDD = 3.3V, TA = 25°C)
• 149mA typical total current (at max output frequency with both output channels active)
• Duty cycle range from 40 to 60% (VDD = 3.3V, TA = 25°C)
• 32 lead LFCSP-WQ package, operating temperature range from -40°C to +85°C

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ADI products are only authorized (and sold) for use by the customer and are not to be resold or otherwise passed on to any third party