ACS422A68TAGZBX8 IDT, ACS422A68TAGZBX8 Datasheet - Page 44

• Manufacturer Part Number: ACS422A68TAGZBX8
• Description: Interface - CODECs
• Manufacturer: IDT

Specifications of ACS422A68TAGZBX8

• Rohs: yes
• Part # Aliases: IDTACS422A68TAGZBX8

ACS422x68
LOW-POWER, HIGH-FIDELITY, INTEGRATED CODEC
©2011 INTEGRATED DEVICE TECHNOLOGY, INC.
3.16.3. Temperature Limit State Diagram:
3.16.4. Instant Cut Mode
This mode can be used to make our algorithm react faster to reduce thermal output but will cause
more pronounced volume changes. If enabled:
•
•
•
•
During this mode, the algorithm still possesses the ability to mute and then power down the BTL amp
if the high overheat continues to be 1.
This mode is disabled by default.
Only the high overheat is used, the low overheat is ignored.
Whenever polled, if the high overheat is 1, then the volume setting will immediately be set to 0h.
Conversely, if the high overheat is 0, the volume setting will immediately be set to the MaxVol
value.
Both volume clear and volume set events occur at the polling rate.
Decrement
Figure 16. Temp sense volume adjustment algorithm
Volume by
Volume =
DecStep
Mute
No
No
01
Every “Poll” time
(8ms default)
OverheatHL ==?
TS Disabled
Vol = Mute?
Ratio Count
Vol @ Min?
Increment
BTL PWD
Yes
Yes
1X
IDLE
44
00
Ratio met & Vol
/= Max?
No
Yes
Volume by
Increment
IncStep
ACS422X68
V1.6 01/13