パッケージ情報
| Lead Count (#) | 20 |
| Pkg. Type | QSOP |
| Pkg. Code | PCG20 |
| Pitch (mm) | 0.64 |
| Pkg. Dimensions (mm) | 8.7 x 3.8 x 1.47 |
環境及び輸出分類情報
| Moisture Sensitivity Level (MSL) | 1 |
| Pb (Lead) Free | Yes |
| ECCN (US) | NLR |
| HTS (US) | 8542390001 |
製品スペック
| Pkg. Type | QSOP |
| Lead Count (#) | 20 |
| Carrier Type | Reel |
| Moisture Sensitivity Level (MSL) | 1 |
| Qty. per Reel (#) | 3000 |
| Qty. per Carrier (#) | 0 |
| Pb (Lead) Free | Yes |
| Pb Free Category | e3 Sn |
| Temp. Range | -40 to +85°C |
| Advanced Features | Programmable Clock, Reference Output |
| Core Voltage (V) | 3.3 |
| Family Name | VersaClock |
| Input Freq (MHz) | 0 - 50 |
| Input Type | Crystal, LVCMOS |
| Inputs (#) | 1 |
| Length (mm) | 8.7 |
| MOQ | 3000 |
| Output Banks (#) | 1 |
| Output Freq Range (MHz) | 0.25 - 200 |
| Output Skew (ps) | 250 |
| Output Type | LVCMOS |
| Output Voltage (V) | 3.3 |
| Outputs (#) | 9 |
| Package Area (mm²) | 33.1 |
| Period Jitter Typ P-P (ps) | 200.000 |
| Phase Jitter Typ RMS (fs) | 50000.000 |
| Phase Jitter Typ RMS (ps) | 50.000 |
| Pitch (mm) | 0.64 |
| Pkg. Dimensions (mm) | 8.7 x 3.8 x 1.47 |
| Prog. Clock | Yes |
| Prog. Interface | OTP |
| Reel Size (in) | 13 |
| Reference Output | Yes |
| Requires Terms and Conditions | Does not require acceptance of Terms and Conditions |
| Spread Spectrum | No |
| Tape & Reel | Yes |
| Thickness (mm) | 1.47 |
| Width (mm) | 3.8 |
説明
The 348 field programmable clock synthesizer generates up to 9 high-quality, high-frequency clock outputs including multiple reference clocks from a low frequency crystal or clock input. The 348 has 4 independent on-chip PLLs and is designed to replace crystals and crystal oscillators in most electronic systems. Using IDT's VersaClockTM software to configure PLLs and outputs, the 348 contains a One-Time Programmable (OTP) ROM to allow field programmability. Programming features include eight selectable configuration registers, up to two sets of four low-skew outputs. Using Phase-Locked Loop (PLL) techniques, the device runs from a standard fundamental mode, inexpensive crystal, or clock. It can replace multiple crystals and oscillators, saving board space and cost. The 348 is also available in factory programmed custom versions for high-volume applications.