Eurotech BRI ISDN Manuel d'utilisateur télécharger pdf (Page 34)

Am186™CC Microcontroller Router Reference Design User’s Manual

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–24 V @ 50 mA and –70 V @ 60 mA

NOTE: See sheet 11 in the schematics for power supply circuits.

A switching flyback circuit from the 12-V source generates the –24 V and the

–70 V. These outputs are routed to the Am186CC microcontroller router reference

design and are used in the POTS interface.

–5 V @ 200 mA

NOTE: See sheet 11 in the schematics for power supply circuits.

A 5-V buck-boost switching circuit from the 12-V source generates the –5 V. This

power supply provides power to the Am79C031 DSLAC.

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Eurotech BRI ISDN Manuel d'utilisateur Page 34