LFTX/LFRX
From Ettus Knowledge Base
Contents
Device Overview
The LFTX daughterboard utilizes two high-speed operational amplifiers to allow transmission from 0-30 MHz. The LFTX is ideal for applications in the HF band, or for applications using an external front end to up-convert and amplify the intermediate signal. The outputs of the LFTX can be processed independently, or as a single I/Q pair. Example applications include HF communications, radios with external front ends and direct signal generation below 30 MHz.
Key Features
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Hardware Specifications
- Ettus Research recommends to always use the latest stable version of UHD
LFRX
- Current Hardware Revision: 1
- Minimum version of UHD required: 3.8.0
LFTX
- Current Hardware Revision: 1
- Minimum version of UHD required: 3.8.0
Environmental Specifications
Operating Temperature Range
- 0-40 °C
Operating Humidity Range
- 10% to 90% non-condensing
USRP Compatibility
LFRX
- N or X Series
LFTX
- N or X Series
Schematics
LFRX
LFTX
Key Component Datasheets
| Part Number | Description | Schematic ID (Page) |
|---|---|---|
| AD813x | Differential ADC Driver | U2, U3 (1) |
| LT3462 | DC/DC Converter | U3 (1) |
| 24LC025B | EEPROM | U1 (1) |
RF Connectors
- The LFTX / LFRX daughterboard features female SMA connectors for both the TX and RX connectors.
Certifications
RoHS
As of December 1st, 2010 all Ettus Research products are RoHS compliant unless otherwise noted. More information can be found at http://ettus.com/legal/rohs-information
