Datasheet Texas Instruments LMX2485
| Manufacturer | Texas Instruments |
| Series | LMX2485 |
Delta-Sigma Low Power Dual PLL for RF Personal Communications
Datasheets
LMX2485x 3-GHz Delta-Sigma Low-Power Dual PLLatinum Frequency Synthesizer datasheet
PDF, 1.3 Mb, Revision: G, File published: Jan 13, 2016
Extract from the document
Status
| LMX2485SQ/NOPB | LMX2485SQX/NOPB | |
|---|---|---|
| Lifecycle Status | Active (Recommended for new designs) | Active (Recommended for new designs) |
| Manufacture's Sample Availability | Yes | No |
Packaging
| LMX2485SQ/NOPB | LMX2485SQX/NOPB | |
|---|---|---|
| N | 1 | 2 |
| Pin | 24 | 24 |
| Package Type | RTW | RTW |
| Industry STD Term | WQFN | WQFN |
| JEDEC Code | S-PQFP-N | S-PQFP-N |
| Package QTY | 1000 | 4500 |
| Carrier | SMALL T&R | LARGE T&R |
| Device Marking | X2485>D | X2485>D |
| Width (mm) | 4 | 4 |
| Length (mm) | 4 | 4 |
| Thickness (mm) | .75 | .75 |
| Pitch (mm) | .5 | .5 |
| Max Height (mm) | .8 | .8 |
| Mechanical Data | Download | Download |
Parametrics
| Parameters / Models | LMX2485SQ/NOPB | LMX2485SQX/NOPB |
|---|---|---|
| 1/f Noise (10 kHz offset at 1 GHz carrier), dBc/Hz | -104 | -104 |
| Current Consumption, mA | 3.3 | 3.3 |
| Integrated VCO | No | No |
| Lock Time(Typ), us | Loop BW dependent | Loop BW dependent |
| Normalized PLL Phase Noise, dBc/Hz | -210 | -210 |
| Operating Temperature Range, C | -40 to 85 | -40 to 85 |
| Output Frequency(Max), MHz | 3000 | 3000 |
| Output Frequency(Min), MHz | 500 | 500 |
| Package Size: mm2:W x L, PKG | 24WQFN: 16 mm2: 4 x 4(WQFN) | 24WQFN: 16 mm2: 4 x 4(WQFN) |
| Rating | Catalog | Catalog |
| VCC, V | 2.5 to 3.6 | 2.5 to 3.6 |
| VCC(Max), V | 3.6 | 3.6 |
| VCC(Min), V | 2.5 | 2.5 |
Eco Plan
| LMX2485SQ/NOPB | LMX2485SQX/NOPB | |
|---|---|---|
| RoHS | Compliant | Compliant |
Application Notes
- AN-1879 Fractional N Frequency Synthesis (Rev. A)PDF, 465 Kb, Revision: A, File published: Apr 26, 2013
The topics included in this application report are: Integer N and Basic PLL Concepts, Traditional Fractional N Concepts, and Delta Sigma Fractional N Concepts.
Model Line
Series: LMX2485 (2)
Manufacturer's Classification
- Semiconductors> Clock and Timing> RF PLLs and Synthesizers