The AD9545BCPZ supports existing and emerging International
Telecommunications Union (ITU) standards for the delivery of
frequency, phase, and time of day over service provider packet
networks, including ITU-G.8262, ITU-T G.812, ITU-T G.813,
ITU-T G.823, ITU-T G.824, ITU-T G.825, and ITU-T G.8273.2.
The AD9545BCPZ is available in a 48-lead LFCSP (7 mm × 7 mm)
package and operates over the −40°C to +85°C temperature range.
AD9545BCPZ pin configuration diagram
Application
Global positioning system (GPS)
PTP (IEEE 1588)
Synchronous Ethernet (SyncE) jitter cleanup and
synchronization
Optical transport networks (OTN)
Synchronous digital
hierarchy (SDH), and macro and small cell base stations
JESD204B support for analog-to-digital converter (ADC) and
digital-to-analog converter (DAC) clocking
Features
Dual DPLL synchronizes 1 Hz to 750 MHz physical layer
clocks, providing frequency translation with jitter
cleaning of noisy references
Complies with ITU-T G.8262 and Telcordia GR-253
Supports Telcordia GR-1244, ITU-T G.812, ITU-T G.813,
ITU-T G.823, ITU-T G.824, ITU-T G.825, and ITU-T G.8273.2
Continuous frequency monitoring and reference validation
for frequency deviation as low as 50 ppb (5 × 10−8)
Both DPLLs feature a 24-bit fractional divider with 24-bit
programmable modulus
Programmable digital loop filter bandwidth: 10−4Hz to 1850Hz
2 differential or 4 single-ended input references
Crosspoint mux interconnects reference inputs to PLLs
Supports embedded (modulated) input/output clock signals
Fast DPLL locking modes