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| www..com Product Brief CP1306 CP1306_PB_Rev1.0, March,2005 Single Channel PCM / ADPCM Codec OVERVIEW The CP1306 is a single channel PCM / ADPCM codec fabricated in advanced low-power mixed-mode CMOS process. The CP1306 encodes the analog voice band signal to 64 Kbps PCM (G.711) or 32 Kbps ADPCM (G.721) serial data, and decodes 64 Kbps PCM (G.711) or 32 Kbps ADPCM (G.721) serial data to analog voice band signal. Its transmit/receive data mute, gain, side-tone attenuation, 12 dB loss PAD at receive side and power down mode are programmable through a serial microcontroller interface. SSOP30 -40 ~ 85 FEATURES 1 channel PCM / ADPCM codec with Digital Signal Processing(DSP) technique Voice companding algorithm: ITU-T G.711 PCM (-law) @ 64 Kbps ITU-T G.721 ADPCM @ 32 Kbps Transmit/Receive synchronous mode only Sampling frequency: fSYNC = 8 KHz Master clock frequency: fMCLK = fSYNCx1296 Serial PCM/ADPCM transmission data rate from 64 Kbps to 2048 Kbps Programmable digital filters to adapt transmission behaviors: FLW VINN Transmit Path ADC Hardware Filter Tx-SW VREF Tx Gain Side Tone Attenuation PCM Compressor PCMSO VREF ADPCM Rx-SW PCMSI ADPCMSO ADPCMRI PCMRO VOUT DAC Receive Path Rx Gain PCM Expander PCMRI Clock Generator Serial Microcontroller Interface BCLK SYNC MCLK DCLK Copyright (c)2005 Chiphomer Technology Limited DOUT CSN DIN Page 1 of 1 www..com Product Brief CP1306 CP1306_PB_Rev1.0, March,2005 Single Channel PCM / ADPCM Codec Transmit/Receive mute Transmit/Receive gain Side tone path attenuation 12dB loss PAD at receive side Power-down mode On-chip precision reference voltage (Vref=1.4V 50mV) Single 3V power supply (Min=2.7V, Max=3.6V) Low power consumption: In working mode: Idd = 8mA (typ) In power down mode: Idd = 0.01mA (typ) Serial microcontroller interface Operating industrial temperature range: -40 ~ 85 SSOP30 package APPLICATIONS Central office switch and PBXs Digital cordless telephony systems Voice over IP (VoIP ) TYPICAL APPLICATION VDD Input voice signal R1 20K R2 20K 1 2 3 4 5 6 0.1uF 10uF 10uF 7 8 9 10 Output voice signal 11 12 13 14 Power-down / Reset 15 FLW NC VINN NC VREF NC AVDD NC AGND NC VOUT NC NC DGND RESETN CP1306 DVDD BCLK SYNC PCMSO PCMSI ADPCMSO ADPCMRI PCMRO PCMRI NC MCLK CSN DCLK DIN DOUT 30 29 28 27 26 25 24 23 22 21 20 19 18 17 16 PCM Interface ADPCM Data Master Clock MCU Interface Chiphomer Technology Limited Add: 4F, Building D, 1618 Yishan Road, Shanghai, P.R.C. Tel: +86-(0)21-64058488, 64014543 Fax: +86-(0)21-64050030 Email: sales@chiphomer.com Web: www.chiphomer.com Copyright (c)2005 Chiphomer Technology Limited Page 2 of 2 |
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