MeshConnect. Voice over

Transcription

1 MeshConnect Voice over

2 CEL Profile Founded in 1959 Headquaters: Silicone Valley, California 120 Employees Employee-Owned Extensive Engineering Facilities Product Development Centers Global Footprint Reps / Distributors / Partners Americas and Asia-based Fulfillment ISO9001 Certified NEC Compound Semiconductor Devices Exclusive Agent in the Americas, NEC RF, Microwave, Optoelectronic and Fiberoptic Semiconductors

3 MeshConnect Single Chip / ZigBee Tx/Rx Integrated MCU w/ rich peripheral mix Single Chip Transceiver! Available In A Module 1 Mbps High Data Rate 3

4 ZIC 2410 MCU Features High Performance 8051 Extensive On chip Memory 96KB Embedded Flash Memory 8KB Data Memory 128-byte CPU dedicated Memory Serial Communications I 2 S/PCM Interface Two High-Speed UARTs SPI Master/Slave Interface I 2 S/2 UART/2 SPI WDT GPIO/24 Timer/4 ADPCM a-law µ-law Voice FIFO DMA MAC AES Engine MODEM DATA 8KB RF TX RF RX PLL Temp. Sensor General 22 / 24 GPIO Internal RC oscillator(rtc) 10-bit ADC (4 channel) PWM/2 Quad Key Scan MCU (8051) FLASH 96KB ROM Bat Monitor ADC (4CH) On-chip Temp Sensor On Board System Clock Digital Regulator RC Oscillator Clock PLL POR 3V Circuitry Analog Regulator Sleep Timer

5 ZIC 2410 RF Radio Features 2.4 GHz RF Transceiver Single Volt Operation 1.5V I 2 S/2 ADPCM Voice FIFO MAC RF TX Support for High Speed Networks 250kbps ZigBee 500kbps and 1Mbps - Proprietary UART/2 SPI a-law µ-law DMA AES Engine MODEM RF RX Integrated RSSI for Location WDT PLL High Integration No External Switch or Filter needed On-chip VCO, LNA, and PA T/RX Switching: 44uS Internal control for external switch GPIO/24 Timer/4 PWM/2 MCU (8051) FLASH 96KB DATA 8KB Temp. Sensor Bat Monitor DSSS / O-QPSK Modulation AES Encrypt / Decrypt Engine Quad Key Scan ROM ADC (4CH) 128 bit Digital Regulator RC Oscillator Clock PLL POR 3V Circuitry Analog Regulator

6 ZIC2410 Voice Features I 2 S interface Enables seamless connection to analog CODEC I 2 S/2 UART/2 ADPCM Voice FIFO MAC MODEM RF TX RF RX Multiple compression algorithm support SPI WDT a-law µ-law DMA AES Engine PLL a-law, µ-law, and ADPCM Voice FIFOs 128 byte Tx and Rx GPIO/24 Timer/4 PWM/2 MCU (8051) FLASH 96KB DATA 8KB Temp. Sensor Bat Monitor DMA off loads CPU DMA reduces CPU overhead of data movement Quad Key Scan Digital Regulator RC Oscillator Clock PLL POR ROM 3V Circuitry ADC (4CH) Analog Regulator 6

7 Voice Block Diagram Power Supply Microphone VCC EXT_CLK XTAL EXT_CLK VCC MIC ANT ZIC2410 MCLK SPI I 2 S 1 line 3 lines 4 lines MCLK (PLLin) Control I 2 S Analog Codec WM8974 Voice Compression UART1 SPK GPIO Key (4) PC Programming & Debugging Interface Speaker

8 Voice Data Flow Analog Input ADC I 2 S / SPI / UART VOICE FIFO WM8974 Analog Output DAC I2S / SPI / UART VOICE FIFO Voice Compression PCM / µ-a-law /ADPCM DMA MAC FIFO ZIC2410 Voice Decompression PCM / µ-a-law /ADPCM DMA MAC FIFO PHY RF ~ Air ~ RF PHY

9 Voice Quality Performance Sampling Rate 8 khz 16 khz 24 khz 32 khz 44.1 khz 48 khz Compression Algorithm A/U law ADPCM A/U law ADPCM A/U law ADPCM A/U law ADPCM A/U law ADPCM A/U law ADPCM Data Rate (bps) 64 K 32 K 128 K 64 K 192 K 96 K 256 K 128 K 353 K 176 K 384 K 192 K 250 kbps Full Duplex? Yes Yes Yes Yes No Yes No Yes No No No No 500 kbps Full Duplex? Yes Yes Yes Yes Yes Yes Yes Yes No Yes No Yes 1M bps Full Duplex? Yes Yes Yes Yes Yes Yes Yes Yes Yes Yes Yes Yes A/U law compression ratio is 2:1 ADPCM compression ratio is 4:1 but this method is prone to data loss ADC resolution is 16 bit Data rate = sampling rate x ADC resolution (16 bit/sample) x compression ratio

10 ZIC2410 Voice Markets / Applications Markets Security Industrial Automation Home Automation Consumer Electronics Applications Wireless Microphone Telephonic Applications Walkie-Talkie Wireless Intercoms Low Cost Audio Applications

11 / ZigBee Modules ZICM2410P0 FREESTAR MATRIX 10mW APEX ZICM2410P2 FREESTAR PRO MATRIX 100mW APEX LT 11

12 Come See The Voice Demo Please Visit Booth B46/2-9 See CEL s Voice Demo 12