MT9126AS Zarlink Semiconductor, MT9126AS Datasheet
MT9126AS
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MT9126AS Summary of contents
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... 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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Data Sheet 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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Data Sheet Functional Description The Quad-channel ADPCM Transcoder is a low power, CMOS device capable of four encode and four decode operations per frame. Four 64 kbit/s channels (PCM octets) are compressed into four 32 kbit/s ADPCM ...
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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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Data Sheet 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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Data Sheet 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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Data Sheet MCLK (C4) F0i ENB2/F0od C2o (output) EN1 (output) EN2 (output) PCMi1 PCMo1 PCMi2 PCMo2 0 1 ADPCMi 0 1 ADPCMo outputs=High impedance inputs = don’t care X = undetermined logic level output; don’t care ...
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MT9126 MCLK (C4i) F0i C2o EN1 (output) F0od/ENB2 SSS PCMi/o1 B1 PCMi/o2 ADPCMi/o (32/24 kb/s) bit kbit/s ADPCMi/o (16 kb/s) outputs = ...
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Data Sheet MCLK F0i ENB2/F0od C2o EN1 (output) EN2 (output PCMi1 PCMo1 PCMi2 PCMo2 ADPCMi ADPCMo PCMi/o1 PCMi/ ...
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MT9126 Processing Delay Through the Device In order to accommodate variable rate PCM and ADPCM interfaces, the serial input and output streams require a complete frame to load internal shift registers. Internal frame alignment of the encoding/decoding functions are taken ...
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Data Sheet MT9126 PCMi1 PCMo1 PCMi2 PCMo2 C4i F0i F0i F0od F0od 2 1 Figure 11 - ISDN Line Card with 32 kbit/s ADPCM F0i LIN+ LIN- F0i F0b LOUT- MCLK C4b LOUT+ ADPCMi DSTo ADPCMo DSTi ...
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MT9126 8-104 Data Sheet ...
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Data Sheet 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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Data Sheet 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 BCLK S t SSS S ENB1 I or ENB2 PCMi/ADPCMi t SD PCMo/ADPCMo S MCLK F0iH U S F0i t F0iS F0od AC Electrical Characteristics Voltages are with respect to ground (V ) ...
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Data Sheet 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: 8-110 Data Sheet ...
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