Maxon Electronics Australia Pty. Ltd. MM-5100P User Manual
FCC Documentation- CM-5100P CDMA 1X Network card
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Maxon Electronics Australia Pty. Ltd. 36A Gibson Avenue, Padstow, N.S.W. Australia
Tel : +61 2 9707-2000 Facsimile : +61 2 9707-3328 URL : http//www.maxon.com.au
Tel : +61 2 9707-2000 Facsimile : +61 2 9707-3328 URL : http//www.maxon.com.au
5.2 Power
interface
part
DC Power is supplied from PCMCIA card slot.
-
LDO: This component is low dropout regulator. Output voltage is about 3.8V DC.
This LDO output voltage is inputted to CDMA Engine power interface.
Each block of CDMA Engine uses low-drop-output linear regulator.
- U500 : voltage regulator for digital circuit ( 2.8 DC )
- U501 : voltage regulator for VC-TCXO and IFR3300 ( 3.0V DC )
-
U502 : voltage regulator for RF Rx part ( 3.0V DC )
-
U503 : voltage regulator for RF Tx part ( 2.85V DC )
-
U505 : voltage regulator for digital part(2.7V DC )
-
And power AMP is directly supplied.
5.3
Digital part
- U400 : MSM(Mobile Station Modem) ASIC is chip responsible for CDMA/FM mobile station’s
base-band digital signal processing. For this chip to function, TCXO(19.2MHz) is required as
basic clocks.
And sleep crystal (32.768KHz) is used as clock source of MSM ASIC.
MSM consists of CDMA core and DFM core. CDMA core is a part for processing CDMA signal
consisting of modulator/demodulator, interleaver/deinterleaver and encoder/decoder in the CDMA
mode.
- U401: Memory part consists of Flash memory and SRAM.
Flash memory: store to main program.
SRAM: performs to read and write data
- U701:UART with integrated PCMCIA bus interface IC. For this chip to function, 14.7456MHz
is required as UART baud rate generator.