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| Part Number | LTC6946IUFD-2 | LTC6946IUFD-3 | LTC6946IUFD-4 | LTC6948IUFD-2 | LTC6946IUFD-1 |
|---|---|---|---|---|---|
| Manufacturer | Analog Devices Inc. | Analog Devices Inc. | Analog Devices Inc. | Analog Devices Inc. | Analog Devices Inc. |
| Product Status | Obsolete | Obsolete | Obsolete | Obsolete | Obsolete |
| Type | Clock/Frequency Synthesizer (RF/IF), Integer N | Clock/Frequency Synthesizer (RF/IF), Integer N | Clock/Frequency Synthesizer (RF/IF), Integer N | Clock/Frequency Synthesizer (RF/IF), Fractional N | Clock/Frequency Synthesizer (RF/IF), Integer N |
| PLL | Yes | Yes | Yes | Yes | Yes |
| Input | Clock | Clock | Clock | Clock | Clock |
| Output | Clock | Clock | Clock | Clock | Clock |
| Number of Circuits | 1 | 1 | 1 | 1 | 1 |
| Ratio - Input:Output | 1:1 | 1:1 | 1:1 | 1:1 | 1:1 |
| Differential - Input:Output | Yes/Yes | Yes/Yes | Yes/Yes | Yes/Yes | Yes/Yes |
| Frequency - Max | 4.91GHz | 5.79GHz | 6.39GHz | 4.91GHz | 3.74GHz |
| Divider/Multiplier | Yes/Yes | Yes/Yes | Yes/Yes | Yes/No | Yes/Yes |
| Voltage - Supply | 3.15V ~ 5.25V | 3.15V ~ 5.25V | 3.15V ~ 5.25V | 3.15V ~ 5.25V | 3.15V ~ 5.25V |
| Operating Temperature | -40°C ~ 105°C | -40°C ~ 105°C | -40°C ~ 105°C | -40°C ~ 105°C (TJ) | -40°C ~ 105°C |
| Mounting Type | Surface Mount | Surface Mount | Surface Mount | Surface Mount | Surface Mount |
| Package / Case | 28-WFQFN Exposed Pad | 28-WFQFN Exposed Pad | 28-WFQFN Exposed Pad | 28-WFQFN Exposed Pad | 28-WFQFN Exposed Pad |
| Supplier Device Package | 28-QFN (4x5) | 28-QFN (4x5) | 28-QFN (4x5) | 28-QFN (4x5) | 28-QFN (4x5) |
