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PDF MT6235 Data sheet ( Hoja de datos )
| Número de pieza | MT6235 | |
| Descripción | GSM/GPRS Baseband Processor | |
| Fabricantes | MediaTek | |
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Hay una vista previa y un enlace de descarga de MT6235 (archivo pdf) en la parte inferior de esta página. Total 30 Páginas | ||
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MT6235 GSM/GPRS Baseband
Processor Data Sheet
Revision 1.02
Apr 07, 2008
1 page  
MT6235 GSM/GPRS Baseband Processor Data Sheet Revision 1.02
Preface
Acronym for Register Type
R/W
RO
RC
WO
W1S
W1C
Capable of both read and write access
Read only
Read only. After reading the register bank, each bit which is HIGH(1) will be cleared to LOW(0 )
automatically.
Write only
Write only. When writing data bits to register bank, each bit which is HIGH(1) will cause the
corresponding bit to be set to 1. Data bits which are LOW(0) has no effect on the corresponding bit.
Write only. When writing data bits to register bank, each bit which is HIGH(1) will cause the
corresponding bit to be cleared to 0. Data bits which are LOW(0) has no effect on the corresponding bit.
5/599
MediaTek Inc. Confidential
5 Page 
MT6235 GSM/GPRS Baseband Processor Data Sheet Revision 1.02
1.1 MODEM Features
Radio Interface and Baseband Front End
z GMSK modulator with analog I and Q channel
outputs
z 10-bit D/A Converter for uplink baseband I and Q
signals
z 14-bit high resolution A/D Converter for downlink
baseband I and Q signals
z Calibration mechanism of offset and gain
mismatch for baseband A/D Converter and D/A
Converter
z 10-bit D/A Converter for Automatic Power
Control
z 13-bit high resolution D/A Converter for
Automatic Frequency Control
z Programmable Radio RX filter
z 2 channels Baseband Serial Interface (BSI) with
3-wire control
z Bi-directional BSI interface. RF chip register
read access with 3-wire or 4-wire interface.
z 10-Pin Baseband Parallel Interface (BPI) with
programmable driving strength
z Multi-band support
Voice and Modem CODEC
z Dial tone generation
z Voice memo
z Noise reduction
z Echo suppression
z Advanced sidetone Oscillation Reduction
z Digital sidetone generator with programmable
gain
z Two programmable acoustic compensation filters
z GSM/GPRS quad vocoders for adaptive multirate
(AMR), enhanced full rate (EFR), full rate (FR)
and half rate (HR)
z GSM channel coding, equalization and A5/1, A5/2
and A5/3 ciphering
z GPRS GEA1, GEA2 and GEA3 ciphering
z Programmable GSM/GPRS/EDGE modem
z Packet Switched Data with CS1/CS2/CS3/CS4
coding schemes
z GSM Circuit Switch Data
z GPRS/EDGE Class 12
Voice Interface and Voice Front End
z Two microphone inputs sharing one low noise
amplifier with programmable gain and automatic
gain control (AGC) mechanisms
z Voice power amplifier with programmable gain
z 2nd order Sigma-Delta A/D Converter for voice
uplink path
z D/A Converter for voice downlink path
z Supports half-duplex hands-free operation
z Compliant with GSM 03.50
11/599
MediaTek Inc. Confidential
11 Page | ||
| Páginas | Total 30 Páginas | |
| PDF Descargar | [ Datasheet MT6235.PDF ] | |
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