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P1819GF-08SR
P1819GF-08SR - Brand New onsemi Clock Generators / Frequency Synthesizers / PLL
Credit Card - One-month free return and one year warranty.
- Full or Partial Refund, if the item is not as described
- Full Refund if you don't receive your order
Product Description
The P1819 is a Versatile Spread Spectrum Frequency Modulator designed
specifically for input clock frequencies from 20 to 40MHz. (Refer Input
Frequency and Modulation Rate Table). The P1819 reduces electromagnetic
interference (EMI) at the clock source, allowing system wide reduction of EMI
of down stream clock and data dependent signals. The P1819 allows significant
system cost savings by reducing the number of circuit board layers ferrite
beads, shielding and other passive components that are traditionally required
to pass EMI regulations. The P1819 modulates the output of a single PLL in
order to “spread” the bandwidth of a synthesized clock, and more importantly,
decreases the peak amplitudes of its harmonics. This results in significantly
lower system EMI compared to the typical narrow band signal produced by
oscillators and most frequency generators. Lowering EMI by increasing a
signal’s bandwidth is called ‘Spread Spectrum Clock Generation’.
The P1819 uses the most efficient and optimized modulation profile approved by
the FCC and is implemented in a proprietary all digital method.
Features
▪ FCC approved method of EMI attenuation.
▪ Provides up to 15dB EMI reduction.
▪ Generates a low EMI Spread Spectrum clock and a non-spread reference clock
of the input frequency.
▪ Optimized for Frequency range from 20 to 40MHz.
▪ Internal loop filter minimizes external components and board space.
▪ Selectable spread options: Down and Center.
▪ Low Inherent Cycle-to-Cycle jitter.
▪ Eight spread % selections: ±0.625% to –3.5%.
▪ 3.3V ± 0.3V Operating Voltage range.
▪ Low power CMOS design.
▪ Supports notebook VGA and other LCD timing controller applications.
▪ Power Down function for mobile application.
▪ Available in Commercial temperature range.
▪ Available in 8-pin SOIC and TSSOP Packages.
Applications
The P1819 is targeted towards EMI management for memory and LVDS interfaces in mobile graphic chipsets and high-speed digital applications such as PC peripheral devices, consumer electronics, and embedded controller systems.
Shipping
| First item | Additional item | Service | Description |
|---|---|---|---|
| $0.00 | Free | Free Shipping | Estimated 15-30 business days via Registered Air Mail or others |
| $27.50 | Free | Expedited Shipping | Estimated delivery time is 3-5 business days, with some areas possibly taking 6-9 business days depending on the shipping address. The main courier companies include but are not limited to UPS, DHL, and FedEx. |
| $0.00 | Free | Buyer cooperating carrier | Using buyer's cooperating carrier. Buyer should create a shipping label and share it to us. And then we will call carrier for pickup |
| $38.00 | Free | Expedited Shipping | Estimated delivery time is 3-5 business days, with some areas possibly taking 6-9 business days depending on the shipping address. The main courier companies include but are not limited to UPS, DHL, and FedEx. |
Delivery
- The transportation time may be delayed due to customs clearance, local holidays or abnormal events.
- The estimated time is based on the fastest speed provided by commercial couriers (DHL, FedEx, UPS etc).
- The estimated time does not include the lead time of the item. The lead time of most items is 2–5 business days. If more than 5 working days are needed, we will manually confirm with you.
| Flag | Country | Express Delivery | Standard Delivery |
|---|---|---|---|
 | United States | 3 - 5 days | 10-15 days |
 | Canada | 3 - 5 days | 10-20 days |
 | Mexico | 3 - 5 days | 10-17 days |
 | Germany | 3 - 5 days | 10-12 days |
 | Italy | 3 - 5 days | 10-15 days |
 | United Kingdom | 3 - 5 days | 10-12 days |
Estimated Delivery
This item requires 2-5 business days for processing before shipping after payment is confirmed. And depending on the destination and shipping method.
Return Policy
| Return window | Refund type | Return shipping |
|---|---|---|
| 60 days after receiving item | Money Back or Replacement | Buyer pays for return shipping |
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