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I5216E Datasheet(PDF) 8 Page - Winbond |
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I5216E Datasheet(HTML) 8 Page - Winbond |
8 / 83 page I5216 SERIES Advanced Information PRELIMINARY Publication Release Date: November 30, 2001 -8 Revision A1 FUNCTIONAL DESCRIPTION The I5216 ChipCorder Product provides high quality, fully integrated, single-chip Record/Playback solutions for 8- to 16-minute messaging applications that are ideal for use in PBX systems, cellular phones, automotive communications, GPS/navigation systems, and other portable products. The I5216 product is an enhancement to the ISD5116 architecture, providing: 1) A full duplex Voice CODEC with µ-Law and A-Law compander, with I2S and PCM interface ports; 2) A 2.2V microphone bias supply for reduced noise coupling. This supply can also be used to power down the external microphone with the system. Analog functions and audio gating have also been integrated into the I5216 product to allow for easy interfacing with integrated chip sets on the market. Audio paths have been designed to enable full duplex conversation record, voice memo and answering machine (including outgoing message playback). Logic Interface Options of 2.0V and 3.0V are supported by the I5216 to accommodate both portable communication (2.0- and 3.0-volt required) and automotive product customers (5.0-volt required). Like other ChipCorder products, the I5216 integrates the sampling clock, anti-aliasing and smoothing filters, and multi-level storage array on a single chip. For enhanced voice features, the I5216 eliminates external circuitry by integrating automatic gain control (AGC), a power amplifier/speaker driver, volume control, summing amplifiers, analog switches, and a Voice CODEC. Input level adjustable amplifiers are also included, providing a flexible interface for multiple applications. Recordings are stored in on-chip nonvolatile memory cells, providing zero-power message storage. This unique, single-chip solution is made possible through Winbond’s patented multilevel storage technology. Voice and audio signals are stored directly into solid-state memory in their natural, uncompressed form, providing superior quality voice and music reproduction. SPEECH/SOUND QUALITY The I5216 ChipCorder product can be configured, via software, to operate at 4.0, 5.3, 6.4, and 8.0 kHz sampling frequencies, allowing the user a choice of speech quality options. Increasing the duration decreases the sampling frequency and bandwidth, which affects sound quality. The "Input Sample Duration" table below compares filter pass band and product durations. DURATION To meet end-system requirements, the I5216 device is a single-chip solution, which provides 8 to 16 minutes of voice record and playback, depending on the sample rates defined by the customer's software. INPUT SAMPLE RATE TO DURATION INPUT SAMPLE Rate (kHz) Duration 1 (Minutes) Typical Filter Pass Band (kHz) 8.0 8 min 3 sec 3.7 6.4 10 min 4 sec 2.9 5.3 12 min 9 sec 2.5 4.0 16 min 6 sec 1.8 1. Minus any pages selected for digital storage O |
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