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PDF MT6228 Data sheet ( Hoja de datos )
| Número de pieza | MT6228 | |
| Descripción | GSM/GPRS Baseband | |
| Fabricantes | MediaTek | |
| Logotipo |  |
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Hay una vista previa y un enlace de descarga de MT6228 (archivo pdf) en la parte inferior de esta página. Total 70 Páginas | ||
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MT6228 GSM/GPRS Baseband
Processor Data Sheet
Revision 1.02
September 09, 2005
Datasheet pdf - http://www.DataSheet4U.net/
1 page  
www.DataSheet.co.kr
Preface
MT6228 GSM/GPRS Baseband Processor Data Sheet Revision 1.0
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.
5/616
MediaTek Inc. Confidential
Datasheet pdf - http://www.DataSheet4U.net/
5 Page 
www.DataSheet.co.kr
MT6228 GSM/GPRS Baseband Processor Data Sheet Revision 1.0
1.2 MODEM Features
Radio Interface and Baseband Front End
GMSK modulator with analog I and Q channel
outputs
10-bit D/A Converter for uplink baseband I and Q
signals
14-bit high resolution A/D Converter for downlink
baseband I and Q signals
Calibration mechanism of offset and gain
mismatch for baseband A/D Converter and D/A
Converter
10-bit D/A Converter for Automatic Power
Control
13-bit high resolution D/A Converter for
Automatic Frequency Control
Programmable Radio RX filter
2 channels Baseband Serial Interface (BSI) with
3-wire control
Bi-directional BSI interface. RF chip register
read access with 3-wire or 4-wire interface.
10-Pin Baseband Parallel Interface (BPI) with
programmable driving strength
Multi-band support
Voice and Modem CODEC
Dial tone generation
Voice memo
Noise reduction
Echo suppression
Advanced sidetone Oscillation Reduction
Digital sidetone generator with programmable
gain
Two programmable acoustic compensation filters
GSM/GPRS quad vocoders for adaptive multirate
(AMR), enhanced full rate (EFR), full rate (FR)
and half rate (HR)
GSM channel coding, equalization and A5/1 and
A5/2 ciphering
GPRS GEA1 and GEA2 ciphering
Programmable GSM/GPRS modem
Packet Switched Data with CS1/CS2/CS3/CS4
coding schemes
GSM Circuit Switch Data
GPRS Class 12
Voice Interface and Voice Front End
Two microphone inputs sharing one low noise
amplifier with programmable gain and automatic
gain control (AGC) mechanisms
Voice power amplifier with programmable gain
2nd order Sigma-Delta A/D Converter for voice
uplink path
D/A Converter for voice downlink path
Supports half-duplex hands-free operation
Compliant with GSM 03.50
11/616
MediaTek Inc. Confidential
Datasheet pdf - http://www.DataSheet4U.net/
11 Page | ||
| Páginas | Total 70 Páginas | |
| PDF Descargar | [ Datasheet MT6228.PDF ] | |
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