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IDT821034 データシート(PDF) 1 Page - Integrated Device Technology |
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IDT821034 データシート(HTML) 1 Page - Integrated Device Technology |
1 / 19 page 1 MAY 13, 2003 DSC-6032/3 © 2003 Integrated Device Technology, Inc. QUAD PCM CODEC WITH PROGRAMMABLE GAIN IDT821034 The IDT logo is a registered trademark of Integrated Device Technology, Inc INDUSTRIAL TEMPERATURE RANGE FEATURES: • 4 channelCODEC with on-chip digital filters • Software Selectable A-law/ µ-lawcompanding • Programmablegainsetting • Automatic master clock frequency selection: 2.048MHz, 4.096 MHz or 8.192MHz • Flexible PCM interface with up to 128 programmable time slots, data rate from 512 kbits/s to 8.192 Mbits/s • 5 SLIC signaling pins per channel • Flexible Serial Control Interface to microcontroller • Software programmable timing modes • TTL and CMOS compatible digital I/O • Meets or exceeds ITU-T G.711 - G.714 requirements • +5 V single power supply • Low power consumption: 100mW Typ. • Operating temperature range: -40 °C to +85 °C • Packages available: 52 pin PQFP FUNCTIONAL BLOCK DIAGRAM A/D + D/A + +2.5V - Channel 0 SLIC Interface I/O Channel 1 Channel 2 Channel 3 DSP PCM Interface Serial Control Interface Timing DX DR FS BCLK TSX CO CI CS CCLK MCLK GSX0 VFXI0 VFRO0 O_0(4 - 2) I/O_0(1 - 0) DESCRIPTION: The IDT821034 is a single-chip, four channel PCM CODEC with on- chip filters and programmable gain setting. This device provides both µ-Law and A-Law companding digital-to-analog and analog-to-digital conversions based on ITU-T G.711 - G.714 specifications. The digital filters in IDT821034 provides the necessary transmit and receive filtering for voice telephone circuit to interface with time-division multiplexed systems. The IDT821034 has a flexible PCM interface with software selectable timing modes and independently programmable time slot for each transmit and receive channel. It also integrates the SLIC signaling functions through internal registers. The CODEC and SLIC control/status registers are accessed via the Serial Control Interface. The IDT821034 can be used in digital telecommunication applications such as PBX, Central Office Switch, Digital Telephone and Integrated Voice/ Data Access Unit. |
同様の部品番号 - IDT821034 |
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同様の説明 - IDT821034 |
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