diff options
Diffstat (limited to 'host/docs')
| -rw-r--r-- | host/docs/dboards.dox | 47 | ||||
| -rw-r--r-- | host/docs/usrp_e3x0.dox | 89 |
2 files changed, 133 insertions, 3 deletions
diff --git a/host/docs/dboards.dox b/host/docs/dboards.dox index b38fa5ae1..812a3a09e 100644 --- a/host/docs/dboards.dox +++ b/host/docs/dboards.dox @@ -179,7 +179,7 @@ Features: - 2 quadrature frontends (1 transmit, 1 receive) - Defaults to direct conversion - Can be used in low IF mode through lo_offset with uhd::tune_request_t -- Independent recieve and transmit LO's and synthesizers +- Independent receive and transmit LO's and synthesizers - Allows for full-duplex operation on different transmit and receive frequencies - Can be set to use Integer-N tuning for better spur performance with uhd::tune_request_t @@ -214,7 +214,7 @@ Features: - 2 quadrature frontends (1 transmit, 1 receive) - Defaults to direct conversion - Can be used in low IF mode through lo_offset with uhd::tune_request_t -- Independent recieve and transmit LO's and synthesizers +- Independent receive and transmit LO's and synthesizers - Allows for full-duplex operation on different transmit and receive frequencies - Can be set to use Integer-N tuning for better spur performance with uhd::tune_request_t @@ -256,7 +256,7 @@ Features: - 2 quadrature frontends (1 transmit, 1 receive) - Defaults to direct conversion - Can be used in low IF mode through lo_offset with uhd::tune_request_t -- Independent recieve and transmit LO's and synthesizers +- Independent receive and transmit LO's and synthesizers - Allows for full-duplex operation on different transmit and receive frequencies - Can be set to use Integer-N tuning for better spur performance with uhd::tune_request_t @@ -292,6 +292,47 @@ LEDs: - **RX LD**: Receive Synthesizer Lock Detect - **RX1/RX2**: Receiver on RX2 antenna port +\subsection dboards_ubx UBX Series + +Features: +- 2 quadrature frontends (1 transmit, 1 receive) + - Defaults to direct conversion + - Can be used in low IF mode through lo_offset with uhd::tune_request_t +- Independent receive and transmit LO's and synthesizers + - Allows for full-duplex operation on different transmit and + receive frequencies + - Can be set to use Integer-N tuning for better spur performance with uhd::tune_request_t + +Transmit Antennas: **TX/RX** + +Receive Antennas: **TX/RX** or **RX2** + +- **Frontend 0:** Complex baseband signal for selected antenna + +- **Note:** The user may set the receive antenna to be TX/RX or RX2. + However, when using a UBX board in full-duplex mode, the receive + antenna will always be set to RX2, regardless of the settings. + +Transmit Gains: **PGA0**, Range: 0-31.5dB + +Receive Gains: **PGA0**, Range: 0-31.5dB + +Bandwidths: + +- **UBX**: 40 MHz, RX & TX +- **UBX-160**: 160 MHz, RX & TX + +Sensors: + +- **lo_locked**: boolean for LO lock state + +LEDs: + +- **LOCK**: Synthesizer Lock Detect +- **TX/RX TXD**: Transmitting on TX/RX antenna port +- **TX/RX RXD**: Receiving on TX/RX antenna port +- **RX2 RXD**: Receiving on RX2 antenna port + \subsection dboards_tvrx TVRX The TVRX board has 1 real-mode frontend. It is operated at a low IF. diff --git a/host/docs/usrp_e3x0.dox b/host/docs/usrp_e3x0.dox index 41f4d6451..c01a0b74f 100644 --- a/host/docs/usrp_e3x0.dox +++ b/host/docs/usrp_e3x0.dox @@ -371,6 +371,95 @@ usrp->get_rx_sensor("lo-locked"); usrp->get_tx_sensor("lo-locked"); ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ +\subsubsection e3x0_dboard_e310_band_select Frontend Filter and Antenna Switches + +The transmit and receive filter banks uses switches to select between the available filters. These paths are +also dependent on the antenna switch settings. Incorrectly setting the switches generally results +in attenuated input / output power. Receive filters are band pass (series high & low pass filters), +transmit filters are low pass. + +Source code related to controlling the filter band and antenna switches resides in e300_impl.c. Specifically, refer to methods +`e300_impl::_update_bandsel`, `e300_impl::_update_atrs`, `e300_impl::_update_gpio`, and `e300_impl::_update_enables`. Generally, these +methods set the switches depending on the state of transmit and receive streams. + +The following sections provide switch setting tables for antenna and filter selection for frontends A & B receive and transmit paths. +For futher details refer to the schematics. + +\subsubsection e3x0_dboard_e310_frontend_a_switches Frontend Side A Filter and Antenna Switches + +_Note: X = don't care, T = If full duplex, set bits according to transmit table, otherwise don't care. +Filter range A – B will be selected if A <= freq < B._ + +__Receive__ +RX Port | RX Filter (MHz) | VCTXRX2_V1,V2 | VCRX2_V1,V2 | RX2_BANDSEL[2:0] | RX2B_BANDSEL[1:0] | RX2C_BANDSEL[1:0] +:-----: | :-------------: | :-----------: | :---------: | :--------------: | :---------------: | :---------------: +TRX-A | < 450 | 01 | 10 | 101 | XX | 01 +TRX-A | 450 – 700 | 01 | 10 | 011 | XX | 11 +TRX-A | 700 – 1200 | 01 | 10 | 001 | XX | 10 +TRX-A | 1200 – 1800 | 01 | 10 | 000 | 01 | XX +TRX-A | 1800 – 2350 | 01 | 10 | 010 | 11 | XX +TRX-A | 2350 – 2600 | 01 | 10 | 100 | 10 | XX +TRX-A | 2600 – 6000 | 01 | 01 | XXX | XX | XX +RX2-A | 70 – 450 | TT | 01 | 101 | XX | 01 +RX2-A | 450 – 700 | TT | 01 | 011 | XX | 11 +RX2-A | 700 – 1200 | TT | 01 | 001 | XX | 10 +RX2-A | 1200 – 1800 | TT | 01 | 000 | 01 | XX +RX2-A | 1800 – 2350 | TT | 01 | 010 | 11 | XX +RX2-A | 2350 – 2600 | TT | 01 | 100 | 10 | XX +RX2-A | >= 2600 | TT | 10 | XXX | XX | XX + +__Transmit__ +TX Port | TX Filter (MHz) | VCTXRX2_V1,V2 | TX_ENABLE2A,2B | TX_BANDSEL[2:0] +:-----: | :-------------: | :-----------: | :------------: | :-------------: +TRX-A | < 117.7 | 10 | 01 | 111 +TRX-A | 117.7 – 178.2 | 10 | 01 | 110 +TRX-A | 178.2 – 284.3 | 10 | 01 | 101 +TRX-A | 284.3 – 453.7 | 10 | 01 | 100 +TRX-A | 453.7 – 723.8 | 10 | 01 | 011 +TRX-A | 723.8 – 1154.9 | 10 | 01 | 010 +TRX-A | 1154.9 – 1842.6 | 10 | 01 | 001 +TRX-A | 1842.6 – 2940.0 | 10 | 01 | 000 +TRX-A | >= 2940.0 | 11 | 10 | XXX +_Note: Although the transmit filters are low pass, this table describes UHD's tuning range for selecting each filter path. +The table also includes the required transmit enable state._ + +\subsubsection e3x0_dboard_e310_frontend_b_switches Frontend Side B Filter and Antenna Switches + +_Note: X = don't care, T = If full duplex, set bits according to transmit table, otherwise don't care. +Filter range A – B will be selected if A <= freq < B._ + +__Receive__ +RX Port | RX Filter (MHz) | VCTXRX1_V1,V2 | VCRX1_V1,V2 | RX1_BANDSEL[2:0] | RX1B_BANDSEL[1:0] | RX1C_BANDSEL[1:0] +:-----: | :-------------: | :-----------: | :---------: | :--------------: | :---------------: | :---------------: +TRX-B | < 450 | 10 | 01 | 100 | XX | 10 +TRX-B | 450 – 700 | 10 | 01 | 010 | XX | 11 +TRX-B | 700 – 1200 | 10 | 01 | 000 | XX | 01 +TRX-B | 1200 – 1800 | 10 | 01 | 001 | 10 | XX +TRX-B | 1800 – 2350 | 10 | 01 | 011 | 11 | XX +TRX-B | 2350 – 2600 | 10 | 01 | 101 | 01 | XX +TRX-B | 2600 – 6000 | 10 | 10 | XXX | XX | XX +RX2-B | 70 – 450 | TT | 10 | 100 | XX | 10 +RX2-B | 450 – 700 | TT | 10 | 010 | XX | 11 +RX2-B | 700 – 1200 | TT | 10 | 000 | XX | 01 +RX2-B | 1200 – 1800 | TT | 10 | 001 | 10 | XX +RX2-B | 1800 – 2350 | TT | 10 | 011 | 11 | XX +RX2-B | 2350 – 2600 | TT | 10 | 101 | 01 | XX +RX2-B | >= 2600 | TT | 01 | XXX | XX | XX + +__Transmit__ +TX Port | TX Filter (MHz) | VCTXRX1_V1,V2 | TX_ENABLE1A,1B | TX1_BANDSEL[2:0] +:-----: | :-------------: | :-----------: | :------------: | :--------------: +TRX-B | < 117.7 | 00 | 01 | 111 +TRX-B | 117.7 – 178.2 | 00 | 01 | 110 +TRX-B | 178.2 – 284.3 | 00 | 01 | 101 +TRX-B | 284.3 – 453.7 | 00 | 01 | 100 +TRX-B | 453.7 – 723.8 | 00 | 01 | 011 +TRX-B | 723.8 – 1154.9 | 00 | 01 | 010 +TRX-B | 1154.9 – 1842.6 | 00 | 01 | 001 +TRX-B | 1842.6 – 2940.0 | 00 | 01 | 000 +TRX-B | >= 2940.0 | 11 | 10 | XXX +_Note: Although the transmit filters are low pass, the following table describes UHD's tuning range for selecting each filter path. +The table also includes the required transmit enable states._ \section e3x0_misc Miscellaneous |