Basic Test Procedure with TSW1400
19
SLAU374B – December 2011 – Revised May 2016
Copyright © 2011–2016, Texas Instruments Incorporated
TSW308x Evaluation Module
5. Provide 10-dBm maximum, 300-MHz to 4-GHz LO source to connectors J19 and/or J22. The J19 or
the J22 connector routes the LO source to the respective TRF3705 modulator TX path. Optionally, the
EVM can be configured to share the LO source between the two TX paths through an on-board 3 dB
splitter. The source should be connected to J22 in this case. See the
TX Path Optional Configuration
section for details.
6. Connect the RF output port of J7 and/or J9 to the spectrum analyzer.
7. If an external reference is to be used with LMK04806B in single PLL mode, provide a 3.3-Vpp
maximum, 140-MHz maximum clock to J11. Change SJP5 solder jumper to position 2-3 to route the
external reference source to the LMK04806B OSCIN input.
8. If the LMK04806B is configured in clock distribution mode, provide a 2.4-Vpp maximum, 3.1-GHz
maximum clock to J12. The external clock source will route to the LMK04806B CLKIN1 input.
TSW3084/TSW30H84 EVM Jumpers: (make sure the following jumpers are at their default setting)
Reference Designator
Setting
Function
JP2
1-2
DAC3484/DAC34H84 TXENABLE
JP3
2-3
DAC3484/DAC34H84 SLEEP
JP4
1-2
10-MHz TCXO Enable
JP12, JP13
2-3
TRF3705 Power Down
JP14, JP15
2-3
TRF3705 Gain Control
SJP2
2-3
CPLD EEPROM W/P
SJP3
1-2
USB Bus Power
SJP4
1-2
CPLD Clock Select
SJP5
1-2
Internal/External Reference Select for LMK04806B OSCIN
SJP9, SJP10, SJP11, SJP12
2-3
DAC3484/DAC34H84 DATACLK delay. Default is zero trace
delay.
TSW3085 EVM
1. Connect J13 connector of TSW3085 EVM to J4 connector of TSW1400 EVM.
2. Connect the EVM-supplied 18-AWG wires to the DC plug cable (Tensility 10-01776) to a qualified lab
bench power supply. The 18-AWG red wire is the 6-V wire while the 18-AWG black wire is the ground
wire.
3. Connect the 6-V power supply cable to the J4,
Power In
jack of the TSW3085 EVM.
4. Connect PC’s USB port to J14 USB port of the TSW3085 EVM. The cable should be a standard A to
mini-B connector cable.
5. Provide 10 dBm maximum, 300-MHz to 4-GHz LO source to connectors J1. The J1 connector routes
the LO source to the respective TRF3705 modulator TX path.
6. Connect the RF output port of J7 to the spectrum analyzer.
7. If an external reference is to be used with LMK04806B in single PLL mode, provide a 3.3-Vpp
maximum, 140 MHz maximum clock to J11. Change SJP5 solder jumper to position 2-3 to route the
external reference source to the LMK04806B OSCIN input.
8. If the LMK04806B is configured in clock distribution mode, provide a 2.4-Vpp maximum, 3.1-GHz
maximum clock to J12. The external clock source will route to the LMK04806B CLKIN1 input.