AD9553BCPZ

AD9553 is a flexible clock translator for GPON, base station, SONET/SDH, T1/E1, and Ethernet. It is a phase-locked loop (PLL) based clock translator designed to address the needs of passive optical networks (PON) and base stations. The device employs an integer-N PLL to accommodate the applicable frequency translation requirements. The user supplies up to two single-ended input reference signals or one differential input reference signal via the REFA and REFB inputs. The device supports holdover applications by allowing the user to connect a 25 MHz crystal resonator to the XTAL input. Application includes cost effective replacement of high frequency VCXO, OCXO, and SAW resonators, extremely flexible frequency translation for SONET/SDH, Ethernet, Fiber Channel, DRFI/DOCSIS, and PON/EPON/GPON, wireless infrastructure, test and measurement (including handheld devices).

• Arbitrary frequency translation ratios via SPI port
• On-chip VCO, accepts a crystal resonator for holdover applications
• Two single-ended (or one differential) reference input(s)
• Two output clocks (independently programmable as LVDS, LVPECL, or CMOS)
• SPI-compatible, 3-wire programming interface
• Exceeds Telcordia GR-253-CORE jitter generation, transfer, and tolerance specifications
• Supply voltage range from 3.135 to 3.465V (Pin 18, Pin 21, and Pin 28, TA = 25°C)
• Total current is 162mA (VDD = 3.3V, TA = 25°C)
• LVDS configured output is 35mA (typ, VDD = 3.3V, TA = 25°C)
• 32-lead LFCSP-WQ package, temperature range from -40°C to +85°C

Notes

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