| Part Number | AD9557BCPZ-REEL7 | AD9559BCPZ-REEL7 | 
|---|---|---|
| Manufacturer | Analog Devices Inc. | Analog Devices Inc. | 
| Category | Clock/Timing - Application Specific | Clock/Timing - Application Specific | 
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| Product Status | Active | Active | 
| PLL | Yes | Yes | 
| Main Purpose | Ethernet, SONET/SDH | Ethernet, SONET/SDH, Stratum | 
| Input | CMOS, LVDS, LVPECL | LVDS, LVPECL | 
| Output | CMOS, HSTL, LVDS | CMOS, HSTL, LVDS | 
| Number of Circuits | 1 | 1 | 
| Ratio - Input:Output | 2:2 | 4:4 | 
| Differential - Input:Output | Yes/Yes | Yes/Yes | 
| Frequency - Max | 1.25GHz | 1.25GHz | 
| Voltage - Supply | 1.71V ~ 3.465V | 1.71V ~ 3.465V | 
| Operating Temperature | -40°C ~ 85°C | -40°C ~ 85°C | 
| Mounting Type | Surface Mount | Surface Mount | 
| Package / Case | 40-VFQFN Exposed Pad, CSP | 72-VFQFN Exposed Pad, CSP | 
| Supplier Device Package | 40-LFCSP-VQ (6x6) | 72-LFCSP-VQ (10x10) |