Multi-Tech Systems 92U04A22750 ユーザーズマニュアル
Chapter 4 – Interfaces
Wireless ModemModule MTMMC-C Developer's Guide
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Chapter 4 – Interfaces
This chapter describes the ModemModule interfaces.
·
External antenna
·
RF Interface
RF Interface
The impedance is 50 Ohms nominal.
RF Connector
The RF connector is MMCX standard type. An antenna can be directly connected through the mating connector
or using a small adapter.
or using a small adapter.
Transmitter Specifications
Transmitter performance test specification is CDMA2000 mobile station minimum requirement standard, 3GPP2
TSG C0011-A.
TSG C0011-A.
Operating Frequency
824MHz ~ 849MHz (Cellular Band)
1850MHz ~ 1910MHz (PCS Band)
Modulation
QPSK
Conversion Method
Heterodyne
Oscillation Method
VCTCXO & PLL Synthesizer
RF Output Power
Maximum
Minimum
Minimum
0.2W
10nW (-50dBm)
10nW (-50dBm)
Frequency Stability
+/- 300Hz
Open Loop Power Control Output
Power
Power
RX= -25dBm
RX= -65dBm
RX= -104dBm
RX= -65dBm
RX= -104dBm
TX= -57.5 ~ -38.5dBm
TX= -17.5 ~ +1.5dBm
TX= +18 ~ +30dBm
TX= -17.5 ~ +1.5dBm
TX= +18 ~ +30dBm
Spurious Emission
RX Band
TX Band
Other Frequency
TX Band
Other Frequency
-80dBm at 1MHz RBW
-61dBm at 1MHz RBW
-47dBm at 30KHz RBW
-61dBm at 1MHz RBW
-47dBm at 30KHz RBW