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2.1

GUI for Synthesizers

GUI Overview

www.ti.com

When an input to the GUI is changed, the GUI should send this new value to the device automatically
once the cursor has clicked on another field besides the field being changed. It is good practice, however,
to reload all registers once changes to inputs have been made. This can be achieved by clicking on the
"OFF" button below "Load All" in the bottom right corner of the GUI (see

Figure 12

).

Figure 12. Load All Registers

If there is ever a doubt as to the integrity of the communications between the GUI and the device, a USB
reset is in order. Press the Reset USB button near the top left corner of the GUI and then reload all
registers again (see

Figure 13

).

Figure 13. Reset USB

An explanation of all the fields within the Quick-set tab is provided by device functionality beginning with
the synthesizers.

The TX and RX synthesizers are controlled using the group of dialog boxes under "Quick-Synth" (see

Figure 14

).

Figure 14. Synthesizer Programming

12

List of Tables

SLWU065 – September 2009

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Summary of Contents for TRF2443

Page 1: ...ansceiver operating at a transmitter IF of 340 MHz or 170 MHz and a receiver IF of 140 MHz or 280MHz The IF transceiver is used to for up conversion of signals from the transmit chain digital to analo...

Page 2: ...TXPWD Header JP1 Schematic 4 3 EVM DC Power J1 J2 and JP1 4 4 EVM Reference Clock J3 and USB Port J5 5 5 TX Baseband Inputs 6 6 J7 RXIN 6 7 RX Baseband Outputs 7 8 SAW Filter Path 8 9 XPIC RX 9 10 TR...

Page 3: ...21 31 XPIC Receiver Max Gain GUI 22 32 XPIC Receiver Min Gain GUI 22 33 TRF2443 EVM Top Layer 23 34 Schematic 1 of 5 26 35 Schematic 2 of 5 27 36 Schematic 3 of 5 28 37 Schematic 4 of 5 29 38 Schemat...

Page 4: ...nnected to header JP1 TXPWD on the EVM When pins 1 and 2 of header JP1 are shorted 3 3V is fed to the TXPWD pin and the transmitter is disabled When pins 2 and 3 of header JP1 are shorted 0V is fed to...

Page 5: ...nications which provide the interface between a computer s USB port and the TRF2443s SPI port via J5 as shown in Figure 4 A CD containing the GUI to control the TRF2443 is provided within the EVM kit...

Page 6: ...5 TX Baseband Inputs The EVM is configured for single ended RX input signal via SMA connector J7 RXIN This input is taken through a 1 1 balun to provide differential inputs to the device The device pr...

Page 7: ...rough balun T5 or from the balanced ports of J13 I and J18 I Likewise the Q output is taken from the unbalanced port J24 RXBBQ through balun T7 or the balanced ports of J21 Q and J26 Q For balanced mo...

Page 8: ...to 1 the IF signal will be routed out of the IC to SMA connector J30 IFOUT see Figure 8 At this point the user has the flexibility to insert a filter of choice outside the TRF2443 EVM The board does...

Page 9: ...rough a 1 1 5 balun to provide differential inputs to the device The device presents 75 so no external termination resistor is required The XPIC baseband I and Q signals can be measured balanced or un...

Page 10: ...t includes a graphical user interface for controlling the device The GUI contains two tabs labeled Quick set and Advanced see Figure 10 and Figure 11 Figure 10 TRF2443 GUI Quick Set Tab 10 List of Tab...

Page 11: ...The Advanced tab is used for debugging and specific optimization of the device if required by an application Using the Advanced tab without an understanding of what is being controlled can result in...

Page 12: ...re 12 Figure 12 Load All Registers If there is ever a doubt as to the integrity of the communications between the GUI and the device a USB reset is in order Press the Reset USB button near the top lef...

Page 13: ...ency can be programmed to a frequency within the RX Synth Range selected previously Entering a value outside of this range is not permitted and will default to the closest value within this range When...

Page 14: ...gling this button invokes a DC offset calibration of the RX baseband circuitry This is recommended after changing the RX BB Gain RX LPF Bypass Specify whether to bypass the internal low pass filter or...

Page 15: ...for detailed explanation SLWS217 Control of the XPIC receiver is located in the second column within the Quick TRX section see Figure 18 Figure 18 XPIC Receiver GUI XPIC BB Gain dB Specifies the gain...

Page 16: ...on between computer with loaded GUI and USB port J5 on the EVM and press the Reset USB button in the upper left corner of the GUI iii Change the GUI inputs as shown in Figure 20 Figure 20 Programmed I...

Page 17: ...0kHz v In this configuration the chip typically shows about 84dB gain Therefore one should typically see 4dBm at the output of the TRF2443 However transformers T5 and T7 at the RX baseband outputs tra...

Page 18: ...or J24 RXBBQ at 100kHz vi In this configuration the chip typically shows about 86dB gain Therefore one should typically see 4dBm at the output of the TRF2443 However transformers T5 and T7 at the RX...

Page 19: ...etween 10dBm and 14dBm a GAIN i Program GUI as shown in Figure 25 ii Toggle the T Rx Cal Enable button to lock the synthesizers Figure 25 TX Max Gain GUI Settings iii Using a DAC or Arbitrary Waveform...

Page 20: ...n in Figure 26 Figure 26 GUI Settings for TX Carrier Leakage ii At bottom of GUI on Quick set page click on Show Readback Button as shown in Figure 27 Figure 27 GUI Show Readback iii Set the RdBk Reg...

Page 21: ...iii Click the Advanced tab at the top of the GUI The second subsection of the first column contains two fields called TX DC OFFSET I and TX DC OFFSET Q Set these two fields to the corresponding values...

Page 22: ...Gain Pout at spectrum analyzer 13 Pin Typical gain value should be greater than 25dB b MIN GAIN i Change XPIC AGC voltage from 700mV to 0mV as shown in Figure 32 Figure 32 XPIC Receiver Min Gain GUI i...

Page 23: ...5 USB J28 TXLOTEST J3 REFIN J23 TXBBQN J20 TXBBQP J17 TXBBIN J12 TXBBIP J29 RXLOTEST J31 IFIN J33 XPICOUT J15 RXBBI J24 RXBBQ J30 IFOUT ASSEMBLY TOP TRF2443 REV C COMPONENT SIDE S01 www ti com Physica...

Page 24: ...DNI 18 2 C102 C103 150 0402 PANASONIC ERJ 2RKF1500X_DNI DNI 19 1 C104 47 F TANT_D NIC COMPONENTS NTC T476K10TRD CORPS 20 1 D1 BLUE LED_0805 PANASONIC LNJ906W5BUX 21 2 D2 D3 GREEN LED_1206 LITE ON LTST...

Page 25: ...57 1 T1 ADT1 1 TRANS_SMVT_CD542_6 MINI CIRCUITS ADT1 1 58 2 T2 T4 TC1 1 XFMR_5_150X150_50 MINI CIRCUITS TC1 1 59 1 T3 ADT4 1T TRANS_SMVT_CD542_6 MINI CIRCUITS ADT4 1T 60 4 T5 T6 T7 T8 TTWB 16 BL TRANS...

Page 26: ...56 0 OHM 1 2 C11 1uF C11 1uF R1 1 0K R1 1 0K 1 2 TP1 BLK GND TP1 BLK GND C63 4 7pF C63 4 7pF 1 2 R53 12K R53 12K R3 4 02K R3 4 02K 1 2 TP2 BLK GND TP2 BLK GND C9 56pF C9 56pF 1 2 TP3 BLK GND TP3 BLK G...

Page 27: ...1 1 T2 TC1 1 5 1 4 3 C54 220pF C54 220pF C66 0 1uF C66 0 1uF 1 2 R73 0 OHM R73 0 OHM 1 2 C68 220pF C68 220pF C53 220pF C53 220pF R67 0 OHM R67 0 OHM M S A D E N J3 SMA_END_LAUNCH EXT_REF M S A D E N J...

Page 28: ...WR 14 D1 5 D7 6 D5 9 D6 10 TXE 22 D4 2 D3 11 RXF 23 D0 1 RD 13 VCC 20 D2 3 SCREW PANHEAD 4 40 x 3 8 SCREW PANHEAD 4 40 x 3 8 J5 USB_B_S_F_B_TH USB_CONN J5 USB_B_S_F_B_TH USB_CONN VCC 1 DATA 2 DATA 3 G...

Page 29: ...68 RXINN 69 GNDRX 70 GNDRX 71 CLKSPI 73 DATASPI 74 VCCSPI 75 VCCTX 76 TXOUTP 77 TXOUTN 78 GNDTX 79 TXPWD 1 MIXINDN 2 MIXINDP 3 PWRDET 4 LOCKDET 5 TXLOTEST 6 VCCVCOTX 7 VTUNETX 9 CPOUTTX 10 VCCPLLTX 1...

Page 30: ...XBBQ M S A D E N J24 SMA_END_LAUNCH RXBBQ 1 5 2 3 4 M S A D E N J18 SMA_THVT M S A D E N J18 SMA_THVT 1 5 2 3 4 TP13 RED TP13 RED M S A D E N J16 SMA_END_LAUNCH XPICI M S A D E N J16 SMA_END_LAUNCH XP...

Page 31: ...ce TI is not responsible or liable for any such statements TI products are not authorized for use in safety critical applications such as life support where a failure of the TI product would reasonabl...

Page 32: ...Mouser Electronics Authorized Distributor Click to View Pricing Inventory Delivery Lifecycle Information Texas Instruments TRF2443EVM...

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