Texas Instruments TRF2443 Скачать руководство пользователя страница 23 | Manualshive

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4

Physical Description

4.1

EVM Top Layer Drawing

J16
XPICBBI

J25
XPICBBQ

J1
VCC

J2
GND

J32
XPICIN

J7

RXIN

J6

TXOUT

J5

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

Physical Description

Figure 33. TRF2443 EVM Top Layer

SLWU065 – September 2009

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Содержание TRF2443

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

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

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