Catalog
Voice Circuit Processing Device - VCP
Key Features
• Software interface using VP API-II
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• Software downloadable, field upgradeable, expandable
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• Provides expanded line and circuit testing in conjunction with the VE790 Series chip sets
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• DTMF detection (Q.24, up to 16 channels simultaneously)
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• Quad tone and howler tone generation
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• Arbitrary single tone detection
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• 15-kHz energy detection
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• SNR tests
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• Dial pulse measurement
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• Aggregated codec/filter control lowers demand on host micro-processor
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• Master MPI port to the SLAC device
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• Slave PCM port can be used as an alternative
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• Internal PLL and timing circuits with programmable dividers
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• Serial and parallel controller interface options
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• 16 I/Os to support controlling up to 32 lines
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• 3.3-V compliant I/O; Internal 3.3-V to 2.5-V linear regulator for the core logic
Description
AI
The Le79112 VCP device, in combination with the VE790 series chipset, supports up to 32 channels of universal telephone line interface with higher-level functionality. The Le79112 VCP device has integrated self-test and line-test, capable of meeting GR844 requirements.