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công cụ tìm kiếm bảng dữ liệu linh kiện điện tử |
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công cụ tìm kiếm bảng dữ liệu linh kiện điện tử |
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ST75C530 bảng dữ liệu(PDF) 31 Page - STMicroelectronics |
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ST75C530 bảng dữ liệu(HTML) 31 Page - STMicroelectronics |
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31 / 84 page  Parameters CODER and DECODER Modes In the VOCODER Modes, either CODER or DECODER, (CONF_OPER equals 2 or 8) the parameters have the following meaning : Field Byte Pos. Value Definition CONF_OPER 1 3..0 - Define mode : see table above CONF_CODE 3 0 0 1 Low bit rate coded ADPCM coded CONF_VPF 3 1 0 1 Decoder post filter off Decoder post filter on (not in ADPCM) CONF_VASP 3 3..2 00 01 10 11 ADPCM 32000 bps ADPCM 24000 bps ADPCM 16000 bps Reserved CONF_EC 3 4 0 1 Line echo canceller disabled Line echo canceller enabled CONF_SRC 3 5 0 1 Coder source is line input Coder source is audio input CONF_SUPSIL 3 6 0 1 Coder silence supressor disabled Coder silence supressor enabled CONF_ERCOR 3 7 0 1 Low bit rate decoder disable error correction Low bit rate decoder enable error correction Parameters ROOM-MONITOR Mode In the ROOM MONITOR Mode (CONF_OPER equals 9) the parameters have the following meaning : Field Byte Pos. Value Definition CONF_OPER 1 3..0 1001 Define ROOM-MONITOR mode CONF_EC 3 4 0 1 Line echo canceller disabled Line echo canceller enabled Parameters HANDSET/HANDSFREE Mode In the HANDSET/HANDSFREE mode (CONF_OPER equals C), the parameters have the following meaning : Field Byte Pos. Value Definition CONF_OPER 1 3..0 1100 Define HANDSET/HANDSFREE mode CONF_INHINI 3 6 0 1 Init all telephony parameters Disable init of telephony parameters CONF_HFREE 3 7 0 1 Handset mode Handsfree mode CONF_LEC 4 0 0 1 Line echo canceller enabled Line echo canceller disabled CONF_AEC 4 1 0 1 Audio echo canceller enabled Audio echo canceller disabled CONF_FULLD 4 2 0 1 Full duplex mode enabled Half duplex mode enabled CONF_SOFTRx 4 3 0 1 Softclipping enabled on Rx Softclipping disabled on Tx CONF_AGC 4 4 0 1 AGC active AGC frozen CONF_SOFTTx 4 5 0 1 Softclipping enabled on Tx Softclipping disabled on Rx VII - COMMAND SET DESCRIPTION (continued) ST75C530 - ST75C540 31/84 |
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