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The CMX909B is a half-duplex Gaussian Minimum Shift Keyed (GMSK) BT=0.3 modem data pump with on-chip packet data handling. GMSK modulation optimises the data throughput for a given bandwidth RF channel and the on-chip packet data handling relieves the host µC of regular processing tasks, such as maintaining Bit and Frame Synchronisation, Block Formatting, CR.
• GMSK Modulation/Demodulation
• On-chip Packet Detection
• Rx or Tx up to 38.4kbits/sec
• Parallel Host Processor Interface
• Full and Short Data Packet Framing
• Low Power 3.0V/5.0V Operation
• Mobitex Compatible including R14N Short Block Frames
• Flexible Operating and Powersave Modes
1. Brief Description
The CMX909B is a half-duplex Gaussian Minimum Shift Keyed (GMSK) BT=0.3 modem data pump with on-chip packet data handling. GMSK modulation optimises the data throughput for a given bandwidth RF channel and the on-chip packet data handling relieves the host µC of regular processing .
| No. | Partie # | Fabricant | Description | Fiche Technique |
|---|---|---|---|---|
| 1 | CMX901 |
CML |
RF Power Amplifier |
|
| 2 | CMX902 |
CML |
RF Power Amplifier |
|
| 3 | CMX910 |
Consumer Microcircuits Limited |
AIS Baseband Processor |
|
| 4 | CMX970 |
CML |
IF/RF Quadrature Demodulator |
|
| 5 | CMX971 |
Consumer Microcircuits Limited |
Quadrature Modulator |
|
| 6 | CMX972 |
CML |
Quadrature Demodulator |
|
| 7 | CMX973 |
CML |
Quadrature Modulator/Demodulator |
|
| 8 | CMX975 |
CML |
2.7GHz Up/Down converter |
|
| 9 | CMX979 |
CML |
Dual PLL+VCO |
|
| 10 | CMX983 |
Consumer Microcircuits Limited |
Analogue Front End |
|
| 11 | CMX991 |
Consumer Microcircuits Limited |
RF Quadrature Transmitter and RF Quadrature/Low IF Receiver |
|
| 12 | CMX992 |
Consumer Microcircuits Limited |
RF Quadrature Transmitter and RF Quadrature/Low IF Receiver |
|