ACS422A68TAGZBX8 IDT, ACS422A68TAGZBX8 Datasheet - Page 45

• 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.
To avoid damage to the outputs if a short circuit condition should occur, both the headphone and BTL amplifiers imple-
ment short circuit protection circuits. The headphone output amplifier will detect the load current and limit its output if in
an over current state. The BTL amplifier will sense a short to PVDD, ground, or between its +/- outputs and disable its
output if a short is detected. After a brief time, the amplifier will turn on again. If a short circuit condition is still present,
the amplifier will disable itself again.
R29 (1Ch)
Additional Control
(CTL)
Register Address
3.16.5. Short Circuit Protection
3.16.6. Thermal Shutdown Registers
The thermal shutdown circuit is enabled using the Additional Control Register, see Table 51.
3.16.6.1. Headphone Switch Register
5:4
3:2
Bit
7
6
1
0
EQ2SW[1:0]
EQ1SW[1:0]
HPSWPOL
HPSWEN
TSDEN
TOEN
Label
Table 51. Additional Control Register
Type
RW
RW
RW
RW
RW
RW
Default
45
00
00
0
0
0
0
Headphone Switch Enable
0: Headphone switch disabled
1: Headphone switch enabled
Headphone Switch Polarity
0: HPDETECT high = headphone
1: HPDETECT high = speaker
EQ2 behavior due to speaker/headphone output state
EQ1 behavior due to speaker/headphone output state
Thermal Shutdown Enable (See section 7.9)
0: thermal shutdown disabled
1: thermal shutdown enabled
Zero Cross Time-out Enable
0: Time-out Disabled
1: Time-out Enabled - volumes updated if no zero cross
event has occurred before time-out
Description
ACS422X68
V1.6 01/13