Product Overview
The ASSFLP Series is a programmable spread spectrum low EMI clock oscillator designed for a wide range of electronic applications including laptop computers, PDAs, LCDs, digital cameras, wireless LAN devices, mobile phones, printers, and flat TVs. Featuring a compact 5.0 x 3.2 x 1.3mm ceramic package, this oscillator offers tri-state functionality and is suitable for RoHS reflow profiles. Its seam-sealed ceramic package ensures high reliability. The device is available in 2.5V and 3.3Vdc supply voltages and provides EMI reduction through spread spectrum modulation. Quick turn delivery is available for small quantities (under 5 days).
Product Attributes
- Brand: ABRACON
- Series: ASSFLP
- 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
| Parameter | 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) | - | dBc | 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 (Vdd=3.3V)
2.25 (Vdd=2.5V) | 3.3 (Vdd=3.3V)
2.5 (Vdd=2.5V) | 3.63 (Vdd=3.3V)
2.75 (Vdd=2.5V) | Vdc | Standard Vdd = 3.3V, Option 1 Vdd = 2.5V |
| Input Current (Vdd = 2.5V) | 10 (8-49.999MHz)
15 (50-79.999MHz)
20 (80-99.999MHz)
25 (100-160MHz) | 20 (8-49.999MHz)
20 (50-79.999MHz)
25 (80-99.999MHz)
30 (100-160MHz) | - | mA | |
| Input Current (Vdd = 3.3V) | 15 (8-49.999MHz)
20 (50-79.999MHz)
25 (80-99.999MHz)
30 (100-160MHz) | 20 (8-49.999MHz)
25 (50-79.999MHz)
30 (80-99.999MHz)
40 (100-160MHz) | - | mA | |
| Rise and Fall Time (Tr/Tf) (Vdd = 2.5V) | 2.0 (8-49.999MHz)
2.0 (50-79.999MHz)
1.5 (80-99.999MHz)
1.5 (100-160MHz) | 5.0 (8-49.999MHz)
4.0 (50-79.999MHz)
3.0 (80-99.999MHz)
3.0 (100-160MHz) | - | ns | |
| Rise and Fall Time (Tr/Tf) (Vdd = 3.3V) | 3.0 (8-49.999MHz)
2.5 (50-79.999MHz)
2.0 (80-99.999MHz)
1.5 (100-160MHz) | 10.0 (8-49.999MHz)
8.0 (50-79.999MHz)
5.0 (80-99.999MHz)
4.0 (100-160MHz) | - | ns | |
| 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) | 15 | - | 120 | kHz | Programmable dependant |
| Dimensions | - | 5.0 x 3.2 x 1.3 | - | mm | |
Note: Recommend using an approximately 0.01uF bypass capacitor between PIN 2 and 4.
Pin Function:
1: Tri-State
2: GND/Case
3: Output
4: Vdd
Tape and Reel: 1,000pcs/reel
Spread Spectrum Bandwidth Selection Table:
| Spread Spectrum Band Width Options | 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 |
Part Identification Example: ASSFLP - [MHz] - [Overall Freq. Stability] - [Packaging] - [SSBW] - [Supply Voltage]
- Frequency in MHz: Please specify the frequency in MHz. e.g. 14.31818MHz
- Overall Freq. Stability: Blank: 50ppm, R: 25ppm
- Packaging: Blank: Bulk, T: Tape & Reel
- SSBW: C or D (See table above)
- Supply Voltage: Blank: 3.3V5%, 1: 2.5V5%
Contact Abracon for special tighter stability.
2210282330_ABRACON-ASSFLP1-D04_C1323439.pdf
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Low EMI clock oscillator ABRACON ASSFLP1-D04 programmable spread spectrum for electronic applications Images
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