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author | Josh Blum <josh@joshknows.com> | 2010-04-22 12:04:00 -0700 |
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committer | Josh Blum <josh@joshknows.com> | 2010-04-22 12:04:00 -0700 |
commit | 70b6144543596816e5df19009777294ce5e500ae (patch) | |
tree | 4a06167164806d8dfbcb22d2605da94f7ce196d2 /host/docs/dboards.rst | |
parent | d73db2cc560f975512db7748f0e82865285c76e8 (diff) | |
download | uhd-70b6144543596816e5df19009777294ce5e500ae.tar.gz uhd-70b6144543596816e5df19009777294ce5e500ae.tar.bz2 uhd-70b6144543596816e5df19009777294ce5e500ae.zip |
added dboard app notes
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-rw-r--r-- | host/docs/dboards.rst | 64 |
1 files changed, 64 insertions, 0 deletions
diff --git a/host/docs/dboards.rst b/host/docs/dboards.rst new file mode 100644 index 000000000..d08b752a6 --- /dev/null +++ b/host/docs/dboards.rst @@ -0,0 +1,64 @@ +======================================================================== +UHD - Daughterboard Application Notes +======================================================================== + +.. contents:: Table of Contents + +------------------------------------------------------------------------ +Daughterboard Properties +------------------------------------------------------------------------ + +The following contains interesting notes about each daughterboard. +Eventually, this page will be expanded to list out the full +properties of each board as well. + +^^^^^^^^^^^^^^^^^^^^^^^^^^^ +Basic RX and and LFRX +^^^^^^^^^^^^^^^^^^^^^^^^^^^ +The Basic RX and LFRX boards have 3 subdevices: + +* **Subdevice A:** real signal on antenna RXA +* **Subdevice B:** real signal on antenna RXB +* **Subdevice AB:** quadrature subdevice using both antennas + +The boards have no tunable elements or programmable gains. +Though the magic of aliasing, you can down-convert signals +greater than the nyquist rate of the ADC. + +^^^^^^^^^^^^^^^^^^^^^^^^^^^ +Basic TX and and LFTX +^^^^^^^^^^^^^^^^^^^^^^^^^^^ +The Basic TX and LFTX boards have 1 quadrature subdevice using both antennas. + +The boards have no tunable elements or programmable gains. +Though the magic of aliasing, you can up-convert signals +greater than the nyquist rate of the DAC. + +^^^^^^^^^^^^^^^^^^^^^^^^^^^ +RFX Series +^^^^^^^^^^^^^^^^^^^^^^^^^^^ +Transmit Antennas: **TX/RX** + +Receive Antennas: **TX/RX** or **RX2** + +The user may set the receive antenna to be TX/RX or RX2. +However, when using an RFX board in full-duplex mode, +the receive antenna will always be set to RX2, regardless of the settings. + +^^^^^^^^^^^^^^^^^^^^^^^^^^^ +XCVR 2450 +^^^^^^^^^^^^^^^^^^^^^^^^^^^ +The XCVR2450 has a non-contiguous tuning range consiting of a high band and a low band. +The high band consists of frequencies between...TODO + +Transmit Antennas: **J1** or **J2** + +Receive Antennas: **J1** or **J2** + +When using the XCVR2450 in full-duplex mode, +the user must set the receive antenna and the transmit antenna to be different; +not doing so will yeild undefined results. + +The XCVR2450 uses a common LO for both receive and transmit. +Even though the API allows the RX and TX LOs to be individually set, +a change of one LO setting will be reflected in the other LO setting. |