RFMD2080 45MHz to 2700MHz IQ Modulator with Synthesizer/VCO and Baseband Interface
The RFMD2080 is a low power, highly integrated, IQ modulator with integrated fractional-N synthesizer and voltage controlled oscillator (VCO). The RFMD2080 can generate output frequencies of between 45MHz and 2700MHz, making it suitable for a wide range of applications.The fractional-N synthesizer takes advantage of an advanced sigma-delta architecture that delivers ultra-fine step sizes and low spurious products. The synthesizer/VCO combined with an external loop filter allows the user to generate an oscillator signal covering 90MHz to 5400MHz. The signal is buffered and routed to a high accuracy quadrature divider (/2) that drives the balanced I and Q mixers. The output of the mixers are summed and applied to a differential RF output stage. The device also features a differential input for an external VCO or LO source.The baseband I and Q stages are highly integrated; featuring variable gain and filtering as well as generation of DC offset voltages. The programmable DC offsets enable improved carrier suppression. The baseband input 3dB bandwidth can be tuned from 1.5MHz to 10MHz, and the total gain control range is 38dB with 2dB resolution.Device programming is achieved via a simple 3-wire serial interface. In addition, a unique programming mode allows up to four devices to be controlled from a common serial bus. This eliminates the need for separate chip-select control lines between each device and the host controller. Up to six general purpose outputs are provided, which can be used to access internal signals (the LOCK signal, for example) or to control front end components. The device is optimized for low power operation, consuming typically only 155mA from a 3V supply.
技术特性 Features
- RF Output Frequency Range 45MHz to 2700MHz
- Fractional-N Synthesizer with Very Low Spurious Levels
- Typical Step Size 1.5Hz
- Fully Integrated Wideband VCOs and LO Buffers
- Integrated Phase Noise <0.2° rms at 1GHz
- Integrated Baseband Amplification Stage with Variable Gain and Filtering
- Tunable Baseband Filters Input 3dB Bandwidth from 1.5MHz to 10MHz
- -45dBc Unadjusted Carrier Suppression
- -40dBc Unadjusted Sideband Suppression
- Very Low Noise Floor -150dBm/Hz Typical
- Output P1dB +4dBm
- Output IP3 +18dBm
- 3.0V to 3.3V Power Supply
- 155mA Typical Current Consumption
- Serial Programming Interface
应用领域 Applications
- Satellite Communications
- QPSK/QAM Modulators
- SSB Modulators
- Software Defined Radios
订购信息 Ordering Information
- RFMD2080SB 32-Pin QFN 5-Piece sample bag
- RFMD2080SQ 32-Pin QFN 25-Piece sample bag
- RFMD2080SR 32-Pin QFN 100-Piece reel
- RFMD2080TR7 32-Pin QFN 750-Piece reel
- RFMD2080TR13 32-Pin QFN 2500-Piece reel
- DKMD2080 Complete Design Kit 1 Bo
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技术指标
| Local Oscillator Frequency (Min) (MHz): |
90 |
| Local Oscillator Frequency (Max) (MHz): |
5400 |
| OIP3 (dBm): |
18 |
| Broadband Noise Floor (dBm/Hz): |
-150 |
| Carrier Suppression (dBc): |
-45 |
| Sideband Suppression (dBc): |
-40 |
| VSUPPLY (V): |
3 |
| ISUPPLY (mA): |
155 |
| Package: |
QFN 5mm x 5mm |
功能框图 Functional Block Diagram
RFMD2080 产品实物图
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订购信息 Ordering Information
| 订购型号 |
MOQ* |
INC* |
Packaging and Shipping Details |
QTY |
Per 1 EA |
| RFMD2080SR |
100 EA |
100 EA |
Standard 100 Piece 7" Short Reel Shipping From Greensboro |
1+ |
$19.82 |
| RFMD2080TR7 |
750 EA |
750 EA |
Standard 750 Piece 7" Reel Shipping From Greensboro |
100+ |
$15.06 |
| RFMD2080TR13 |
2500 EA |
2500 EA |
Standard 2500 Piece Reel Shipping From Greensboro |
750+ |
$9.91 |
