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AP89085 Datasheet(PDF) 11 Page - Aplus Intergrated Circuits |
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AP89085 Datasheet(HTML) 11 Page - Aplus Intergrated Circuits |
11 / 24 page Integrated Circuits Inc. aP89341/170/085 Ver 5.0 10 Aug 23, 2010 Command D7 D6 D5 D4 D3 D2 D1 D0 Description PUP1 (C5h) 1 1 0 0 0 1 0 1 Power up the chip with NO ramp-up (suitable for VOUT direct drive) PUP2 (8Dh) 1 0 0 0 1 1 0 1 Power up the chip WITH ramp-up (suitable for COUT transistor drive) PDN1 (E1h) 1 1 1 0 0 0 0 1 Power down the chip with NO ramp-down (suitable for VOUT direct drive) PDN2 (A9h) 1 0 1 0 1 0 0 1 Power down the chip WITH ramp-down (suitable for COUT transistor drive) 1 1 1 0 0 0 1 1 Set output status for OUT2 pin STATUS (E3h) 0 0 0 1 0 G2 G1 G0 OUT2 = BUSYB (000), 8K (001), 4K, 2K, 1K, 16Hz, 1M, EMPTY (FULLB) PAUSE (39h) 0 0 1 1 1 0 0 1 Pause the playback and hold at current COUT value RESUME (1Dh) 0 0 0 1 1 1 0 1 Resume playback from the previous COUT value 0 1 1 1 0 0 0 1 Pre-load Voice Group address into buffer for next playback PREFETCH (71h) G7 G6 G5 G4 G3 G2 G1 G0 Voice Group address (G7=MSB; G0=LSB) • Power up with RAMP-UP (PU2-C5H) or without RAMP-UP (PU1-8DH) Fig. 11 Power-up command timing 1. PU1 (C5H) will power-up the chip and set the COUT to 80H immediately and stay there. 2. PU2 (8DH) will Ramp-up chip and ramp-up COUT from 00H to 80H and stay there. 3. Power-up will start after 350us (at 6KHz sampling rate). 4. Voice will be playback immediately after PU1 / PU2 completes if the section buffer is filled with the PREFETCH command before power-up. 5. OUT1 (BUSY) will output logic HIGH during Ramp-up operation. 6. PDN2 (Power-down with ramp-down) will be executed correctly only if PU2 is executed before. |
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