SNC21085 Datasheet, PDF (7/10 Pages) SONiX Technology Company – 1-CH H.Q. Speech Controller

SNC21085
1-CH H.Q. Speech Controller
5.10 Push-Pull Output
An 8-level volume control Push-Pull Direct Drive circuit is built-in SNC21085. The
maximum resolution of Push-Pull is 12 bits. Two huge output stage circuits are
designed in SNC21085. With this advanced circuit, the chip is capable of driving
speaker directly without external transistors.
Audio in
-
0.5 Vdd
+
VON
-
VOP
0.5 Vdd +
Push-Pull Output
5.11 Mark register
If user had insert Mark into wave file. The Mark data will be fetched into this register
during voice playing. The content of this register will be cleared to “0” automatically
once user accesses this register.
5.12 Low Voltage Hold
This function enables chips entering Hold mode when voltage is below 2.1V and will
back to work after voltage rise up to 2.1V. Chip will not entering hold mode before
current Instruction finish. When chip in Hold mod, ROSC will keep running, and all the
content of Latch/Register/SRAM will keep unchanged.
Ver: 1.0
7
November 08, 2006