MV3508 Zarlink Semiconductor, MV3508 Datasheet
MV3508
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MV3508 Summary of contents
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THIS DOCUMENT IS FOR MAINTENANCE PURPOSES ONLY AND IS NOT RECOMMENDED FOR NEW DESIGNS ...
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... The MV3506 and MV3508 provide the European A-Law companding and the MV3507 provides the North American -Law companding characteristic. The MV3508 has programmable squelch circuitry to reduce idle channel noise. These circuits provide the interface between the analog signals of the subscriber loop and digital signals of the PCM highway in a digital telephone switching system ...
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MV3506/7/8 FUNCTIONAL DESCRLPTION Fig.2 shows the simplified block diagram of the devices. They contain independent circuitry for processing transmit and receive signals. Switched capacitor filters provide the necessary bandwidth limiting of voice signals in both directions. Circuitry for coding and ...
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SYS CLK T STROBE T STROBE T SHIFT PCM OUT SYS CLK R STROBE R STROBE R SHIFT PCM IN TIMING REQUIREMENTS The internal design of the devices paid careful attention to the timing requirements of various systems. In North ...
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... On the MV3506/7 it should be left unconnected or connected to the A GND pin via a capacitor for normal operation. On the MV3508 it should be tied high to enable the squelch feature and it should be left unconnected otherwise. Clock Select (Three Level Input). This pin selects the proper divide ratios for a 256kHz, 1 ...
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PIN DESCRIPTIONS (continued) Symbol Pin No.. 3506/7 GND IN +, IN- 15, PDB 18 FLT OUT 19 OUT OUT Pin name and description Auto Zero Capacitor Ground ...
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MV3506/7/8 ELECTRICAL CHARACTERISTICS Test conditions - Voltages are with respect to digital ground (V Characteristic Digital supply voltage Negative supply voltage Analog ground voltage Ambient temperature Input low voltage - digital inputs Input high voltage - digital inputs System clock ...
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DIGITAL SWITCHING CHARACTERISTICS - SYSTEM CLOCK (SEE FIG.7) Characteristic System clock rise time System clock high period System clock fall time System clock low period 2.0V SYS CLK 0.8V DIGITAL SWITCHING CHARACTERISTICS - RECEIVE STROBE AND CLOCK (SEE FIGS. 8 ...
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MV3506/7/8 2.0V SYS CLK 0.8V 2.0V R STROBE 0.8V 2.0V R STROBE 0.8V t 2.0V R SHIFT 0.8V DIGITAL SWITCHING CHARACTERISTICS - RECEIVE DATA (SEE FIG.10) Characteristic PCM input set-up time PCM input hold time 2.0V R STROBE 0.8V 2.0V ...
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DIGITAL SWITCHING CHARACTERISTICS - TRANSMIT STROBE AND CLOCK (SEE FIGS.11 AND 12) Characteristic Transmit strobe frequency Transmit strobe falling set-up time Transmit strobe early jitter Transmit strobe late jitter Transmit strobe falling hold time Transmit clock frequency Transmit clock rise ...
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MV3506/7/8 DIGITAL SWITCHING CHARACTERISTICS - TRANSMIT DATA (SEE FIG.13) Characteristic PCM output holt time PCM output delay 2.0V T STROBE 0.8V 2.0V T SHIFT 0.8V 2.0V PCM OUT 0.8V ANALOG CHANNEL CHARACTERISTICS - FILTER DELAYS Characteristic Transmit filter delay Receive ...
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... They are not guaranteed and not subject to production testing 2. The typical 0dBm0 level of 58dBm corresponds to an RMS voltage of 1.51V and a maximum coding level of 3.1V 3. The maximum value reduces to -68dBm0p without squelch (MV3508 with TST/SE pin unconnected) ABSOLUTE MAXIMUM RATINGS Exceeding these ratings may cause permanent damage ...
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MV3506/7/8 HEADQUARTERS OPERATIONS GEC PLESSEY SEMICONDUCTORS Cheney Manor, Swindon, Wiltshire SN2 2QW, United Kingdom. Tel: (0793) 518000 Fax: (0793) 518411 GEC PLESSEY SEMICONDUCTORS P.O.Box 660017, 1500 Green Hills Road, Scotts Valley, California 95067-0017, United States of America. Tel (408) 438 ...
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... Fax: +65 333 6192 Information relating to products and services furnished herein by Zarlink Semiconductor Inc. trading as Zarlink Semiconductor or its subsidiaries (collectively “Zarlink”) is believed to be reliable. However, Zarlink assumes no liability for errors that may appear in this publication, or for liability otherwise arising from the application or use of any such information, product or service or for any infringement of patents or other intellectual property rights owned by third parties which may result from such application or use ...