RF2056 High Performance VHF/UHF PLL and VCO with Integrated Mixers
The RF2056 is a low power, high performance, VHF/UHF frequency conversion chip with integrated local oscillator (LO) generation and a pair of mixers. The synthesizer includes an integrated fractional-N phase locked loop that can control the VCO to produce a low phase noise and low spurious LO signal with very fine frequency resolution. The VCO output can then be divided by one, two, or four in the LO divider, the output of which drives the mixer, which converts the signal into the required frequency band. The mixer bias current can be programmed dependent on the required performance and available supply current. The LO generation block has been designed to operate with the VCO covering the frequency range from 200 MHz to 500 MHz, dependant on the value of the external inductor used. With the LO dividers, the LO range achievable is within the range of 50 MHz to 500 MHz. The mixer is broadband and can operate from 30 MHz to 500 MHz at the input and output, enabling both up and down conversion. An external crystal of between 10 MHz and 26 MHz, or an external reference source of between 10 MHz and 104 MHz, can be used with the RF2056 to accommodate a variety of reference frequency options.All on-chip registers are controlled through a simple three-wire serial interface. The RF2056 is designed for 2.7 V to 3.6 V operation. It is available in a plastic 32-pin, 5 mm x 5 mm QFN package.
技术特性 Features
- Fractional-N Synthesizer
- Very Fine Frequency Resolution 1.5 Hz for 26 MHz Reference
- LO Frequency Range Between 50 MHz and 500 MHz
- Low Phase Noise VCO
- VCO Range 200 MHz to 500 MHz
- Dependent on External Inductor
- Integrated LO Buffers and LO Dividers
- On-Chip Crystal-Sustaining Circuit With Programmable Loading Capacitors
- Two High-Linearity RF Mixers
- Mixer Frequency Range 30 MHz to 500 MHz
- Mixer Input IP3 +25 dBm
- Mixer Bias Adjustable for Low Power Operation
- 2.7 V to 3.6 V Power Supply
- Low Current Consumption 45 mA to 65 mA at 3 V
- 3-Wire Serial Interface
功能框图 Functional Block Diagram
|
技术指标
| Mixer RF/IF Frequency (Min) (MHz): |
30 |
| Mixer RF/IF Frequency (Max) (MHz): |
500 |
| Local Oscillator Frequency (Min) (MHz): |
50 |
| Local Oscillator Frequency (Max) (MHz): |
500 |
| Mixer Conversion Gain (dB): |
-2 |
| Mixer IIP3 (dBm): |
25 |
| ISUPPLY (mA): |
55 |
| Package: |
QFN-32 |
应用领域 Applications
- VHF/UHF Radios
- Super-Heterodyne Radios
- Diversity Receivers
- Wireless Telemetry
- PMR
- Marine Radios
产品实物图
订购信息 Ordering Information
- RF2056 32-Pin QFN 25pcs sample bag
- RF2056SB 32-Pin QFN 5pcs sample bag
- RF2056SR 32-Pin QFN 100pcs reel
- RF2056TR7 32-Pin QFN 750pcs reel
- RF2056TR13 32-Pin QFN 2500pcs reel
- DK2056 Complete Design Kit Note: Set-up for 400MHz to 500MHz VCO range.1 box
|
订购信息 Ordering Information
| 订购型号 |
MOQ* |
INC* |
Packaging and Shipping Details |
QTY |
Per 1 EA |
| RF2056 |
25 EA |
25 EA |
Standard 25 Piece Bag Shipping From Greensboro |
1+ |
$8.17 |
| RF2056SR |
100 EA |
100 EA |
Standard 100 Piece 7" Short Reel Shipping From Greensboro |
100+ |
$6.21 |
| RF2056TR7 |
750 EA |
750 EA |
Standard 750 Piece 7" Reel Shipping From Hsin-Chu |
750+ |
$4.44 |
| RF2056TR13 |
2500 EA |
2500 EA |
Standard 2500 Piece 13" Reel Shipping From Hsin-Chu |
|
|
| DK2056 |
1 EA |
1 EA |
Standard 1 Shipping From Greensboro |
1+ |
$190.00 |
