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MT91L61AS Datasheet(PDF) 1 Page - Mitel Networks Corporation |
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MT91L61AS Datasheet(HTML) 1 Page - Mitel Networks Corporation |
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1 / 32 page  1 Features • Single 2.7-3.6 volt supply operation • MT91L61 version features a delayed framing pulse in SSI and ST-BUS modes to facilitate cascaded devices • Programmable µ-Law/A-Law Codec and Filters • Programmable ITU-T (G.711)/sign-magnitude coding • Programmable transmit, receive and side-tone gains • Fully differential interface to handset transducers - including 300 ohm receiver driver • Flexible digital interface including ST-BUS/SSI • Serial microport • Low power operation • ITU-T G.714 compliant • Multiple power down modes Applications • Battery operated equipment • Digital telephone sets • Cellular radio sets • Local area communications stations • Pair Gain Systems • Line cards Description The MT91L60/61 3V Multi-featured Codec incorporates a built-in Filter/Codec, gain control and programmable sidetone path as well as on-chip anti-alias filters, reference voltage and bias source. The device supports both ITU-T and sign- magnitude A-Law and µ-Law requirements. The MT91L60/61 is a true 3V device employing a fully differential architecture to ensure wide dynamic range. Complete telephony interfaces are provided for connection to handset transducers. Internal register access is provided through a serial microport compatible with various industry standard micro-controllers. The MT91L60/61 is fabricated in Mitel's ISO2-CMOS technology ensuring low power consumption and high reliability. Ordering Information MT91L61AE 24 Pin Plastic DIP (600 mil) MT91L60AE 24 Pin Plastic DIP (600 mil) MT91L61AS 24 Pin SOIC MT91L60AS 20 Pin SOIC MT91L61AN 24 Pin SSOP MT91L60AN 20 Pin SSOP -40 °C to +85°C Figure 1 - Functional Block Diagram M - M + HSPKR + HSPKR - FILTER/CODEC GAIN ENCODER DECODER 7dB -7dB Transducer Interface Flexible Digital Interface Timing ST-BUS C & D Channels Serial Microport A/ µ/IRQ VSSD VDD VSSA VBias VRef Din Dout STB/F0i CLOCKin PWRST IC CS DATA1 DATA2 SCLK STBd/FOod (MT91L61only) DS5224 ISSUE 3 August 1999 MT91L60/61 3 Volt Multi-Featured Codec (MFC) ISO2-CMOS Advance Information |
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