Product Overview
The ASSFLP Series is a programmable spread spectrum, low EMI clock oscillator designed for applications requiring reduced electromagnetic interference. Housed in a compact 5.0 x 3.2 x 1.3mm ceramic package, this oscillator features a tri-state function and is suitable for RoHS reflow profiles. Its seam-sealed ceramic package ensures high reliability. Applications include laptop computers, PDAs, LCDs, digital cameras, wireless LANs, mobile phones, printers, and flat TVs. Quick turn delivery is available for small quantities.
Product Attributes
- Brand: ABRACON
- Certifications: ISO9001:2008 Certified, RoHS / RoHS II Compliant
- Package: Ceramic, Seam sealed
- Moisture Sensitivity Level (MSL): N/A (Hermetically Sealed)
- ESD Sensitive: Yes
Technical Specifications
| Specification | Minimum | Typical | Maximum | Units | Notes |
| Frequency Range | 8 | - | 160 | MHz | |
| Spread Spectrum Type | Center Spread 0.25 ~ 2.0 %; Down Spread -0.5 ~ -4.0 % | See table 3 for options |
| EMI Reduction (at 100MHz) | -7 dBc (C02), -9 dBc (C04) | Refer to dB level when no modulation |
| Operating Temperature | -40 | - | +85 | C | |
| Overall Frequency Stability* | -50 | - | +50 | ppm | See options |
| Supply Voltage (Vdd) | 2.97 (3.3V) / 2.25 (2.5V) | 3.3 / 2.5 | 3.63 (3.3V) / 2.75 (2.5V) | Vdc | Standard Vdd = 3.3V; Option 1 Vdd = 2.5V |
| Input Current (Vdd = 2.5V) | 10 | - | 20 | mA | 8.000 to 49.999MHz |
| 15 | - | 20 | mA | 50.000 to 79.999MHz |
| Input Current (Vdd = 3.3V) | 15 | - | 20 | mA | 8.000 to 49.999MHz |
| 20 | - | 25 | mA | 50.000 to 79.999MHz |
| Rise and Fall Time (Tr/Tf)** (Vdd = 2.5V) | 2.0 | - | 5.0 | ns | 8.000 to 49.999MHz |
| 2.0 | - | 4.0 | ns | 50.000 to 79.999MHz |
| Rise and Fall Time (Tr/Tf)** (Vdd = 3.3V) | 3.0 | - | 10.0 | ns | 8.000 to 49.999MHz |
| 2.5 | - | 8.0 | ns | 50.000 to 79.999MHz |
| Output Voltage (VOH) | 0.9*Vdd | V | |
| Output Voltage (VOL) | 0.1*Vdd | V | |
| Tri-state function (Stand-by) | "1" (VIH0.7*Vdd) or Open: Oscillation; "0" (VIH<0.3*Vdd) : Hi Z |
| Modulation carrier frequency (Dither rate) | Programmable dependant (15kHz to 120kHz) |
| Dimensions | 5.0 x 3.2 x 1.3 mm | |
Part Identification Example: ASSFLP - [MHz] - [Overall Freq. Stability] - [Packaging] - [SSBW] - [Supply Voltage]
Spread Spectrum Bandwidth Selection Table:
| Spread Spectrum Type | Center Spread (%) | Down Spread (%) |
| C02 | 0.250 | D02 -0.50 |
| C04 | 0.50 | D03 -0.75 |
| C08 | 1.000 | D04 -1.00 |
| C12 | 1.500 | D06 -1.50 |
| C16 | 2.000 | D08 -2.00 |
| | D12 -3.00 |
| | D16 -4.00 |
Overall Frequency Stability Options: Blank: 50ppm, R: 25ppm
Packaging Options: Blank: Bulk, T: Tape & Reel (1,000pcs/reel)
Supply Voltage Options: Blank: 3.3V5%, 1: 2.5V5%
Pin Function: 1: Tri-State, 2: GND/Case, 3: Output, 4: Vdd
Note: Recommend using an approximately 0.01uF bypass capacitor between PIN 2 and 4.
2210282300_ABRACON-ASSFLP1-C12_C1327551.pdf
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Low EMI clock oscillator ABRACON ASSFLP1-C12 programmable spread spectrum with ceramic package Images
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