Low Phase Noise Varactor Diode SKYWORKS SMV1801-079LF Suitable for GSM PCS CDMA and Analog Phone VCOs
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Product Description
Product Overview
The Skyworks SMV1801-079LF is a silicon hyperabrupt junction varactor diode designed for battery-operated wireless systems. It features a high capacitance ratio and low series resistance, making it suitable for low phase noise Voltage-Controlled Oscillators (VCOs) operating at frequencies up to and above 2.5 GHz. Key applications include low-noise and wideband UHF and VHF VCOs for GSM, PCS, CDMA, and analog phones. This varactor is provided in an ultra-small SC-79 package and is rated MSL1 at 260 C.
Product Attributes
- Brand: Skyworks Solutions, Inc.
- Product Line: Hyperabrupt Junction Tuning Varactor
- Package Type: SC-79
- Moisture Sensitivity Level: MSL1 (260 C per JEDEC J-STD-020)
- Compliance: RoHS-compliant (Pb-free symbol or LF in part number)
- Cross Reference: NXPs BB182
Technical Specifications
| Parameter | Symbol | Test Condition | Minimum | Typical | Maximum | Units |
|---|---|---|---|---|---|---|
| Reverse voltage | VR | 30 | V | |||
| Forward current | IF | 20 | mA | |||
| Power dissipation | PDIS | 250 | mW | |||
| Operating temperature | TOP | -55 | +125 | C | ||
| Storage temperature | TSTG | -55 | +150 | C | ||
| Reverse current | IR | VR = 30 V | 10 | nA | ||
| Capacitance | CT | f = 1 MHz, VR = 1 V | 54.00 | 62.00 | pF | |
| f = 1 MHz, VR = 28 V | 2.48 | 2.89 | pF | |||
| Capacitance ratio | CTR | CT @ 1 V / CT @ 2 V | 20.6 | |||
| CT @ 1 V / CT @ 28 V | 1.31 | |||||
| CT @ 25 V / CT @ 28 V | 1.05 | |||||
| Series resistance | RS | f = 470 MHz, VR = 3 V | 1.2 | |||
| Breakdown voltage | VBR | IR = 10 A | 32 | V |
SPICE Model Parameters
| Part Number | CJO (pF) | VJ (V) | M | CP (pF) | RS () | LS (nH) |
|---|---|---|---|---|---|---|
| SMV1801-079LF | 85 | 10 | 4.4 | 2.6 | 1.1 | 0.8 |
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