Package Information
| Lead Count (#) | 20 |
| Pkg. Code | PCG20 |
| Pitch (mm) | 0.64 |
| Pkg. Type | QSOP |
| Pkg. Dimensions (mm) | 8.7 x 3.8 x 1.47 |
Environmental & Export Classifications
| Moisture Sensitivity Level (MSL) | 1 |
| Pb (Lead) Free | Yes |
| ECCN (US) | NLR |
| HTS (US) | 8542390001 |
Product Attributes
| Lead Count (#) | 20 |
| Carrier Type | Tube |
| Moisture Sensitivity Level (MSL) | 1 |
| Qty. per Reel (#) | 0 |
| Qty. per Carrier (#) | 55 |
| Pb (Lead) Free | Yes |
| Pb Free Category | e3 Sn |
| Temp. Range | 0 to 70°C |
| Advanced Features | Programmable Clock, Spread Spectrum, 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 | 165 |
| 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 |
| Pkg. Type | QSOP |
| Prog. Clock | Yes |
| Prog. Interface | OTP |
| Reference Output | Yes |
| Requires Terms and Conditions | Does not require acceptance of Terms and Conditions |
| Spread Spectrum | Yes |
| Tape & Reel | No |
| Thickness (mm) | 1.47 |
| Width (mm) | 3.8 |
Description
The 345 field programmable clock synthesizer generates up to nine high-quality, high-frequency clock outputs including multiple reference clocks from a low-frequency crystal or clock input. It is designed to replace crystals and crystal oscillators in most electronic systems. Using IDT's VersaClockTM software to configure PLLs and outputs, the 345 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, and optional Spread Spectrum 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 345 is also available in factory programmed custom versions for high-volume applications.