MT9126AE Mitel, MT9126AE Datasheet
MT9126AE
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MT9126AE Summary of contents
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... F0i MCLK Timing C2o EN1 EN2 VDD VSS PWRDN IC MT9126AE MT9126AS Description The Quad ADPCM Transcoder is a low power, CMOS device capable of four encode and four decode functions per frame. Four 64 kbit/s PCM octets are compressed into four 32 kbit/s ADPCM words, and four 32 kbit/s ADPCM words are expanded into four 64 kbit/s PCM octets ...
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MT9126 Pin Description Pin # Name 1 EN1 Enable Strobe 1 (Output). This 8 bit wide, active high strobe is active during the B1 PCM channel in ST-BUS mode. Becomes a single bit, high true pulse when LINEAR=1. In SSI ...
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Preliminary Information Pin Description Pin # Name 10 ENB2/F0od PCM B-Channel Enable Strobe 2 (Input) / Delayed Frame Pulse (Output). SSI operation: ENB2 (Input). An 8-bit wide enable strobe input defining B2 channel (AD)PCM data. A valid 8-bit strobe must ...
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MT9126 Pin Description Pin # Name 19 MS1 Mode Selects 1, 2 and 3 (Inputs). Mode selects for all four encoders. 20 MS2 MS3 MS2 21 MS3 ...
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... ST-BUS and Synchronous Serial Interface (SSI) operation. This allows serial data clock rates from 128 kHz to 4096 kHz, as well as compatibility with Mitel’s standard Serial Telecom BUS (ST-BUS). For ST-BUS operation, on chip channel counters provide channel enable outputs as well as a 2048 kHz bit clock output which may be used by down-stream devices utilizing the SSI bus interface ...
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MT9126 three of the serial I/O ports. BCLK can be any frequency between 128 kHz synchronized to the input strobes. BCLK may be discontinuous outside of the strobe boundaries except when LINEAR=1. In LINEAR mode, BCLK must be 2048 kHz ...
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Preliminary Information mode. Similarily, the four 2-bit ADPCM words on ADPCMi are transparently bypassed, with a two frame delay, to PCMo1 and PCMo2 during the ENB1 or B1 timeslot. Bits 3-8 are don’t care. (See Figures 6 & 9.) When ...
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MT9126 from ADPCMi are expanded into four 16-bit uniform PCM dual-octets on PCMo1 and PCMo2. 16-bit uniform PCM are received and transmitted most significant bit first starting with b15 and ending with b0. ADPCM data are transferred most significant bit ...
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Preliminary Information BCLK ENB1 ENB2/F0od PCMi/o1 PCMi/o2 32 kb/s ADPCM i/o 24 kb/s ADPCM i undetermined logic level output; don’t care input Outputs high impedance outside of channel strobe boundaries Two frame delay from data input ...
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MT9126 BCLK ENB1 ENB2/F0od PCMi/o1 ADPCMo/i PCMi/o2 PCMi/o1 ADPCMo/i PCMi/o2 PCMi/o1 ADPCM o/i PCMi/ undetermined logic level output; don’t care input Outputs high impedance outside of channel strobe boundaries Two frame delay from data input to data output ...
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Preliminary Information MCLK (C4 F0i ENB2/F0od C2o (output EN1 (output) ...
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MT9126 MCLK (C4i F0i C2o ...
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Preliminary Information MCLK F0i ENB2/F0od C2o EN1 (output) ...
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... MT8910 ’U’ interface transciever and MT9126 ADPCM transcoder. This central office application implements the network end of a Pair-Gain system. Figure 12 shows Mitel devices used to construct the remote Pair-Gain loop terminator. Figure 13 depicts an ADPCM to linear PCM converter for applications where further, value added, functions are being performed via digital signal processor ...
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Preliminary Information AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA MT9126 PCMi1 AA PCMo1 PCMi2 AA AA PCMo2 ...
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MT9126 8-48 Preliminary Information ...
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Preliminary Information MT8920 DSP P A 2nd serial port STPA if available ST-BUS port System Frame pulse CLKR CLKX DR DX Figure 13 - ST-BUS to DSP Platform MT9126 System 4.096MHz MT9126 C2o F0i MCLK (C4i) PCMo1 ...
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MT9126 Absolute Maximum Ratings* Parameter 1 Supply Voltage 2 Voltage on any I/O pin 3 Continuous Current on any I/O pin 4 Storage Temperature 5 Package Power Dissipation * Exceeding these values may cause permanent damage. Functional operation under these ...
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Preliminary Information AC Electrical Characteristics Voltages are with respect to ground (V ) unless otherwise stated. SS Characteristics 1 BCLK Clock High 2 BCLK Clock Low 3 BCLK Period 4 Data Output Delay (excluding first bit) 5 Output Active to ...
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MT9126 t BCP A AAAA AAAA AAAA AAAA AAAA AAAA AAAA A AAAA AAAA AAAA AAAA AAAA AAAA AAAA BCLK A AAAA AAAA AAAA AAAA AAAA AAAA AAAA AAAA A AAAA AAAA AAAA AAAA AAAA AAAA S t SSS S ...
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Preliminary Information AC Electrical Characteristics Voltages are with respect to ground (V ) unless otherwise stated. SS Characteristics 1 Mode Select Setup 2 Mode Select Hold † Timing is over recommended temperature & power supply voltages. ‡ Typical figures are ...
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MT9126 Notes: 8-54 Preliminary Information ...