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TI LMX2485SQ/NOPB
Frequency Synthesizer (RF) IC 3GHz 1 24-WFQFN Exposed Pad
Brands: TI
Mfr.Part #: LMX2485SQ/NOPB
Datasheet: LMX2485SQ/NOPB Datasheet (PDF)
Package/Case: WQFN-24
Product Type: Phase Locked Loops - PLL
RoHS Status:
Stock Condition: 1000 pcs, New Original
Warranty: 1 Year Ovaga Warranty - Find Out More
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Add To BomLMX2485SQ/NOPB General Description
The LMX2485 device is a low power, high performance delta-sigma fractional-N PLL with an auxiliary integer-N PLL. The device is fabricated using Texas Instruments advanced process.
With delta-sigma architecture, fractional spurs at lower offset frequencies are pushed to higher frequencies outside the loop bandwidth. The ability to push close in spur and phase noise energy to higher frequencies is a direct function of the modulator order. Unlike analog compensation, the digital feedback technique used in the LMX2485 is highly resistant to changes in temperature and variations in wafer processing. The LMX2485 delta-sigma modulator is programmable up to fourth order, which allows the designer to select the optimum modulator order to fit the phase noise, spur, and lock time requirements of the system.
Serial data for programming the LMX2485 is transferred through a three-line, high-speed (20-MHz) MICROWIRE interface. The LMX2485 offers fine frequency resolution, low spurs, fast programming speed, and a single-word write to change the frequency. This makes it ideal for direct digital modulation applications, where the N-counter is directly modulated with information. The LMX2485 is available in a 24-lead 4.0 × 4.0 × 0.8 mm WQFN package.
Features
- Quadruple Modulus Prescaler for Lower Divides
- RF PLL: 8/9/12/13 or 16/17/20/21
- IF PLL: 8/9 or 16/17
- Advanced Delta-Sigma Fractional Compensation
- 12-Bit or 22-Bit Selectable Fractional Modulus
- Up to 4th Order Programmable Delta-Sigma
Modulator
- Features for Improved Lock Time
- Fastlock / Cycle Slip Reduction With Integrated
Time-Out Counter Which Requires Only a
Single-Word Write
- Fastlock / Cycle Slip Reduction With Integrated
- Wide Operating Range
- LMX2485 RF PLL: 500 MHz to 3.0 GHz
- LMX2485E RF PLL: 50 MHz to 3.0 GHz
- Useful Features
- Digital Lock Detect Output
- Hardware and Software Power-Down Control
- On-Chip Input Frequency Doubler.
- RF Phase Detector Frequency up to 50 MHz
- 2.5 to 3.6 V Operation With ICC = 5.0 mA
Specifications
| Parameter | Value | Parameter | Value |
|---|---|---|---|
| Integrated VCO | No | Output frequency (min) (MHz) | 500 |
| Output frequency (max) (MHz) | 3000 | Normalized PLL phase noise (dBc/Hz) | -210 |
| Current consumption (mA) | 3.3 | Features | Advanced delta-sigma fractional compensation, Cycle slip reduction, Dual PLL, Fastlock, Integrated timeout counter, On-chip input frequency doubler |
| 1/f noise (10-kHz offset at 1-GHz carrier) (dBc/Hz) | -104 | Rating | Catalog |
| Operating temperature range (°C) | -40 to 85 |
Shipping
| Shipping Type | Ship Fee | Lead Time | |
|---|---|---|---|
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DHL | $20.00-$40.00 (0.50 KG) | 2-5 days |
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Fedex | $20.00-$40.00 (0.50 KG) | 2-5 days |
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UPS | $20.00-$40.00 (0.50 KG) | 2-5 days |
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TNT | $20.00-$40.00 (0.50 KG) | 2-5 days |
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EMS | $20.00-$40.00 (0.50 KG) | 2-5 days |
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REGISTERED AIR MAIL | $20.00-$40.00 (0.50 KG) | 2-5 days |
Processing Time：Shipping fee depend on different zone and country.
Payment
| Terms of payment | Hand Fee | |
|---|---|---|
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Wire Transfer | charge US$30.00 banking fee. |
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Paypal | charge 4.0% service fee. |
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Credit Card | charge 3.5% service fee. |
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Western Union | charge US.00 banking fee. |
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Money Gram | charge US$0.00 banking fee. |
Guarantees
1.The electronic components you purchase include 365 Days Warranty, We guarantee product quality.
2.If some of the items you received aren't of perfect quality, we would resiponsibly arrange your refund or replacement. But the items must remain their orginal condition.
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All the products will packing in anti-staticbag. Ship with ESD antistatic protection.
Outside ESD packing’s lable will use ourcompany’s information: Part Mumber, Brand and Quantity.
We will inspect all the goods before shipment,ensure all the products at good condition and ensure the parts are new originalmatch datasheet.
After all the goods are ensure no problems afterpacking, we will packing safely and send by global express. It exhibitsexcellent puncture and tear resistance along with good seal integrity.
We provide high quality products, thoughtful service and after sale guarantee
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