-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 resister read access with 3-wire or 4-wire
interface
-10-pin baseband Parallel Interface (BSI) with programmable driving strength
Multi-band support
2.3.2 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 multi rate (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
2.3.3 Voice interface and Voice Front End
-Two microphone inputs sharing one low noise amplifier with programmable
- Gain control(AGC) mechanism.
-Voice power amplifier with programmable
-Second 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
2.4 Multi-Media Feature
2.4.1 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.
2.4.2 LCD Controller
-Supports simultaneous connection to up to 3 parallel LCD and 2 Serial LCD module
-Supports LCM format: RGB332, RGB444, RGB565, RGB666, RGB888.
-Supports LCD module with maximum resolution up to 800*600 at 24bpp.
-Per pixel alpha channel.
-True color engine
Содержание SP-770
Страница 1: ...SP 770 AS Manual GSM GPRS Cellular Phone SKYSPRING VITELCOM...
Страница 6: ...SECTION1 SP 770 PRODUCT OVERVIEW...
Страница 27: ...Figure4 Battery Charger Flow chart...
Страница 36: ...SECTION2 SCHEMATIC LAYOUT 1 MAIN PART SCHEMATIC LAYOUT 1 1 BASEBAND PART...
Страница 37: ...1 2 MMI PART...
Страница 38: ...1 3 RF PART...
Страница 39: ...2 MAIN KEY PART SCHEMATIC LAYOUT...
Страница 40: ...3 LCD...
Страница 41: ...SECTION3 PCB LAYOUT 1 MAIN PCB 1 1 Location Map of Main PCB Top...
Страница 42: ...1 2 Location Map of Main PCB Bottom...
Страница 43: ...2 MAIN KEY PCB 2 1 Location Map of Main KEY PCB Top...
Страница 44: ...2 2 Location Map of Main KEY PCB Bottom...
Страница 45: ...3 LCD PCB...
Страница 46: ...SECTION4 MECHANICAL ASSEMBLY...
Страница 48: ...3 LOGIC PART TROUBLESHOOTING...
Страница 50: ...3 2 Troubleshooting 2 LCD Display Backlight error...
Страница 51: ...3 3 Troubleshooting 3 Key push error...
Страница 52: ...3 4 Troubleshooting 4 Vibrator error...
Страница 53: ...3 5 Troubleshooting 5 MP3 Play error...
Страница 54: ...3 6 Troubleshooting 6 Camera Preview error...
Страница 55: ...3 7 Troubleshooting 7 FM Radio Play error...
Страница 57: ...3 9 Troubleshooting 9 Bluetooth error...
Страница 58: ...4 RF PART TROUBLESHOOTING...
Страница 59: ...4 1 Troubleshooting 10 RX path check...
Страница 60: ...4 2 Troubleshooting 11 TX path check...
Страница 64: ...4 Settings 4 1 Flash Tool setting 1 Firstly Check values of the setting in an Options menu...
Страница 66: ...5 SW Downloading 1 Connect LT cable to the PC 2 Press the Download button...
Страница 67: ...3 Connect LT cable to the target mobile phone with power off 4 Completion of downloading...
Страница 74: ...5 4 Save back up NVRAM data as a file Save back up NVRAM data from target as a file...
Страница 77: ...6 4 Download to flash Click download to flash button and then updating parameters is complete...