LG KM330 Service Manual page 23

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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, A5/2 and A5/3 ciphering
 
GPRS/EGPRS GEA1, GEA2 and GEA3 ciphering
 
Programmable GSM/GPRS/EGPRS Modem
 
Packet Switched Data with CS1-CS4, MCS1-MCS9 coding schemes with full set IR
 
(Incremental Redundancy) support
GSM Circuit Switch Data
 
GPRS/EGPRS Class 12
 
Voice Interface and Voice Front End
 
Two microphone inputs sharing one low noise amplifier with programmable gain and
automatic gain control (AGC) mechanism
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
 
3.1.4 Multi-Media Features
LCD/NAND Flash Interface
 
Dedicated Parallel Interface supports 3 external devices with 8/16 bit NAND flash interface,
8/9/16/18 bit Parallel Interface, and Serial interface for LCM
Built-in NAND Flash Controller with 1-bit ECC for mass storages
 
Two chip selects available for high-density NAND flash device
 
LCD Controller
Supports simultaneous connection to up to 3 parallel LCD and 2 serial LCD modules
 
Supports LCM format: RGB332, RGB444, RGB565, RGB666, RGB888
 
Supports LCD module with maximum resolution up to 800x600 at 24bpp
 
Per pixel alpha channel
 
True color engine
 
Supports hardware display rotation
 
Capable of combining displaymemories with up to 6 blending layers
 
Three Gamma correction tables
 
-23-

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