Features
- 4-channel codec with on-chip digital filters
- Software selectable A-law/μ-law companding
- Programmable gain setting
- Automatic master clock frequency selection: 2.048MHz, 4.096MHz, or 8.192MHz
- Flexible PCM interface with up to 128 programmable time slots, data rate from 512kbits/s to 8.192Mbits/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
- +5V single power supply
- Low power consumption: 100mW Typ.
- Operating temperature range: -40 °C to +85 °C
- 52-pin PQFP package
Description
The 821034 is a single-chip, four-channel PCM codec with on-chip filters and a 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 the 821034 provide the necessary transmit and receive filtering for voice telephone circuits to interface with time-division multiplexed systems. The 821034 has a flexible PCM interface with software-selectable timing modes and an 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.
Applications
- PBX systems
- Central office switches
- Digital telephones
- Integrated voice/data access units
| Part Number | Status | Samples | Stock | Package | Budgetary Price (USD) | Lead Count (#) | Carrier Type | Moisture Sensitivity Level (MSL) | Pb (Lead) Free | Pb Free Category | Temp. Range (°C) | Country of Assembly | Country of Wafer Fabrication |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 821034DNG | Obsolete | N/A | Out of Stock | PQFP | 1ku | $7.6 | 52# | Tray | 3 | Yes | e3 Sn | -40 to 85°C | PHILIPPINES | TAIWAN |
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- Product Change NoticePDF 24 KB 7WDXRDKU4E7E-5-41812 Nov 14, 2012
- Product Change NoticePDF 252 KB 7WDXRDKU4E7E-5-41817 Oct 20, 2006
- Product Change NoticePDF 164 KB 7WDXRDKU4E7E-5-41811 May 11, 2006
- Product Change NoticePDF 80 KB 7WDXRDKU4E7E-5-41813 Dec 14, 2004
- Product Change NoticePDF 511 KB 7WDXRDKU4E7E-5-41743 Oct 22, 2004
- Product Change NoticePDF 150 KB 7WDXRDKU4E7E-5-41678 Jun 17, 2002
- Product Change NoticePDF 274 KB 7WDXRDKU4E7E-5-41807 Jun 11, 2001
- Product Change NoticePDF 268 KB 7WDXRDKU4E7E-5-41721 Jul 18, 2001
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- Product Change NoticePDF 24 KB 7WDXRDKU4E7E-5-41812 Nov 14, 2012
- Product Change NoticePDF 252 KB 7WDXRDKU4E7E-5-41817 Oct 20, 2006
- Product Change NoticePDF 164 KB 7WDXRDKU4E7E-5-41811 May 11, 2006
- Product Change NoticePDF 80 KB 7WDXRDKU4E7E-5-41813 Dec 14, 2004
- Product Change NoticePDF 511 KB 7WDXRDKU4E7E-5-41743 Oct 22, 2004View More (10)
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