SNC21120
1-CH H.Q. Speech Controller
5.10
Push-Pull & DA Output
SNC21120 is an advanced chip to be designed having two optimal methods to play
out the voices. One is DAC and the other is Push-Pull. Upon user’s applications,
user can select either DAC or PWM in his design. Please be aware that only one
method can be activated at a time.
Push-Pull: An 8-level volume control Push-Pull Direct Drive circuit is
built-in SNC21120. The maximum resolution of Push-Pull is 12 bits. Two huge output
stage circuits are designed in SNC21120. With this advanced circuit, the chip is
capable of driving speaker directly without external transistors.
Audio in
VON
-
0.5 Vdd
+
VOP
-
0.5 Vdd
+
Push-Pull Output
DAC: A 12-bit current type digital-to-analog converter is built-in SNC21120
VCC
DACO
1K
7
Ver: 1.0
November 08, 2006
SONIX [ SONIX TECHNOLOGY COMPANY ]
