Package Information
| CAD Model: | View CAD Model |
| Pkg. Type: | TQFP |
| Pkg. Code: | PRG32 |
| Lead Count (#): | 32 |
| Pkg. Dimensions (mm): | 7.0 x 7.0 x 1.4 |
| Pitch (mm): | 0.8 |
Environmental & Export Classifications
| Moisture Sensitivity Level (MSL) | 3 |
| Pb (Lead) Free | Yes |
| ECCN (US) | EAR99 |
| HTS (US) | 8542.39.0090 |
Product Attributes
| Lead Count (#) | 32 |
| Carrier Type | Tray |
| Moisture Sensitivity Level (MSL) | 3 |
| Prog. Interface | Parallel, Serial |
| Qty. per Reel (#) | 0 |
| Qty. per Carrier (#) | 250 |
| Pb (Lead) Free | Yes |
| Pb Free Category | e3 Sn |
| Temp. Range (°C) | 0 to 70°C |
| C-C Jitter Max P-P (ps) | 45 |
| C-C Jitter Typ P-P (ps) | 27 |
| Core Voltage (V) | 3.3 |
| Diff. Input Signaling | 3.3 |
| Divider Value | 1, 2, 4, 8 |
| Feedback Divider | 1 - 256 |
| Feedback Input | No |
| Function | SerIally programmable SynthesIzers |
| Input Freq (MHz) | 250 - 700 |
| Input Type | LVCMOS, Crystal |
| Inputs (#) | 2 |
| Length (mm) | 7 |
| MOQ | 250 |
| Operating Freq | 700 |
| Output Banks (#) | 1 |
| Output Freq Range (MHz) | 250 - 700 |
| Output Signaling | LVDS |
| Output Skew (ps) | 15 |
| Output Type | LVDS |
| Output Voltage (V) | 3.3 |
| Outputs (#) | 2 |
| Package Area (mm²) | 49 |
| Period Jitter Max P-P (ps) | 7 |
| Period Jitter Typ P-P (ps) | 2.7 |
| Pitch (mm) | 0.8 |
| Pkg. Dimensions (mm) | 7.0 x 7.0 x 1.4 |
| Pkg. Type | TQFP |
| Product Category | General Purpose Clocks |
| Prog. Clock | Yes |
| Reference Output | No |
| Requires Terms and Conditions | Does not require acceptance of Terms and Conditions |
| Spread Spectrum | No |
| Supply Voltage (V) | 3.3 - 3.3 |
| Tape & Reel | No |
| Thickness (mm) | 1.4 |
| VCO Max Freq (MHz) | 700 |
| VCO Min Freq (MHz) | 250 |
| Width (mm) | 7 |
| Xtal Freq (KHz) | 25 |
| Xtal Inputs (#) | 1 |
Resources for 8442
Description
The 8442 is a general purpose, dual output Crystal-to-Differential LVDS High Frequency Synthesizer. The 8442 has a selectable TEST_CLK or crystal input. The TEST_CLK input accepts LVCMOS or LVTTL input levels and translates them to LVDS levels. The VCO operates at a frequency range of 250MHz to 700MHz. The VCO frequency is programmed in steps equal to the value of the input reference or crystal frequency. The VCO and output frequency can be programmed using the serial or parallel interface to the configuration logic. The low phase noise characteristics of the 8442 makes it an ideal clock source for Gigabit Ethernet and Sonet applications.