ADI AD9553BCPZ-REEL7

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.

The device is pin programmable, providing a matrix of standard input/output frequency translations from a list of 15 possible input frequencies to a list of 52 possible output frequency pairs (OUT1 and OUT2). The device also has a 3- wire SPI interface, enabling the user to program custom input- to- output frequency translations.

The output drivers are compatible with LVPECL, LVDS, or single- ended CMOS logic levels, although the device is implemented in a strictly CMOS process.

The device operates over the extended industrial temperature range of - 40°C to +85°C

• Input frequencies from 8 kHz to 710 MHz
• Output frequencies up to 810 MHz LVPECL and LVDS (up to 200 MHz for CMOS output)
• Preset pin- programmable frequency translation ratios cover popular wireline and wireless frequency applications, including xDSL, T1/E1, BITS, SONET, and Ethernet
• 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
• Single supply (3.3 V)
• Very low power: <450 mW (under most conditions)
• Small package size (5 mm × 5 mm)
• Exceeds Telcordia GR- 253- C68E jitter generation, transfer, and tolerance specifications

• Cost effective replacement of high frequency VCXO, OCXO, and SAW resonators
• Extremely flexible frequency translation for SONET/SDH, Ethernet, Fibre Channel, DRFI/DOCSIS, and PON/EPON/GPON
• Wireless infrastructure
• Test and measurement (including handheld devices)