After Sales
Technical Documentation
RAE/RAK–1N
Baseband
Page 2–16
Original, 08/96
Connectors out of Transceiver Unit
Table 18. Battery connector
Signal Name Pin Notes
BGND 1 Battery ground
TBAT 2 Battery temperature
BTYPE 3 Battery type
VB 4 Battery voltage
Internal Signals and Connections
Table 19. Signals Between RF and D2CA ASIC (MCM2)
Signal Name Function Notes
SCLK Synthesizer clock From ASIC to RF
SDATA Synthesizer data From ASIC to RF
SENA1 UHF and VHF PLL enable From ASIC to RF
RXPWR RX supply voltage ON/OFF From ASIC to RF
SYNTHPWR Supply voltage ON/OFF From ASIC to RF
TXPWR TX supply voltage ON/OFF From ASIC to RF
TXP Transmitter power control enable From ASIC to RF
RFC 26 MHz clock from RF to baseband From RF to ASIC
Table 20. Signals Between RF and RFI (MCM2)
Signal Name Function Notes
AFC Automatic frequency control voltage From RFI to RF
TXC TX transmit power control voltage and RX
automatic gain control voltage
From RFI to RF
TXQP,TXQN differential TX quadrature signal From RFI to RF
TXIP,TXIN differential TX in–phase signal From RFI to RF
PDATA0 LNA gain control From RFI to RF
RXQ RX quadrature signal (13 MHz) From RF to RFI
RXI RX inphase signal (13 MHz) From RF to RFI
RFIREF 4.096 V reference voltage From RFI to RF
Table 21. Signals Between RF and CTRLU (MCM1)
Signal Name Function Notes
TRF RF temperature sensor From RF to CTRLU
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