User's Manual

CDU-680 Technical specification
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Not to be distributed or divulged without prior written agreement.
- Wave Type
Cellular: G7W
US-PCS: G7W
- Frequency Scope
Transmit Frequency(MHz) Receiver Frequency(MHz)
Cellular US-PCS Cellular US-PCS
824.82 ~ 848.19 1850 ~ 1910 869.82 ~ 893.19 1930 ~ 1990
- Rated Output Power
Cellular: 0.25W, CLASS 3
US-PCS: 0.25W, CLASS 2
- Voltage and Current value of terminal part power amplifier
Band Part name Maker Typical voltage Max. current RF output power
Cellular FC7113-1 FCI 3.4V 480mA 28dBm
US-PCS SKY77149 FCI 3.4V 470mA 28dBm
- Functions of major semi-conductors
Part name Function
MSM6800 MSM(Mobile Station Modem)
Terminal operation control and digital signal processing
MCP Storing of terminal operation program
NAND Flash memory(1Gb) and SDRAM(256Mb)
RFR6500 Convert Rx RF signal to base-band signal
RFT6150 Convert base-band signal to Tx RF signal
PM6650 Power management