AKD4220-A Datasheet, PDF (4/34 Pages) Asahi Kasei Microsystems – various 7:3 audio and 6:3 video switches.

ASAHI KASEI
[AKD4220-A]
„ Set up DIP switches
SW1 Setting for I2C of AK4220
Pin No. Pin Name
ON (“H”,“1”) / OFF (“L”,“0”)
1
I2C
Control mode Select
2
CAD1 Chip Address Select (Note1)
3
CAD0 Chip Address Select (Note1)
Table 2. SW1 Setting for I2C of AK4220
Default
ON (“H”, “1”)
OFF (“L”, “0”)
OFF (“L”, “0”)
(Note1) Chip Address is selected by CAD1, CAD0 pin (CAD10=”00”,”01”,”10”,”11”)
„ The function of the toggle SW
[SW2] (PDN):
Resets the AK4220. Keep “H” during normal operation.
„ Indication for LED
[LE1] (INT):
Monitor INT0 pin of the AK4220. LED turns on when channel dependent audio input detect
circuit and video signal detect circuit of the AK4220.
[LE2 ∼ 6] (Q0 ∼ 4): Monitor Q0 ∼ 4 pin of the AK4220.
<KM083400>
-4-
2006/06