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92HD99B Datasheet, PDF (12/225 Pages) Integrated Device Technology – SINGLE CHIP PC AUDIO SYSTEM
92HD99
SINGLE CHIP PC AUDIO SYSTEM, CODEC+SPEAKER AMPLIFIER+CAPLESS HP+LDO
designs to use the 92HD99 codec, ensure that there are no conflicts between the output ports on the
codec and existing circuitry.
AFG
Power
State
D0-D2
D3
D3cold
D4
D5
Input Output Used as output
Enable Enable for DAC/Mixer
Used as output
for analog
PC_Beep
Used as
input for
ADC, mixer
Port Behavior
1
1
Don't care
Don't care
Yes
Not allowed. Port is active as input.
No
Not allowed. Inactive (Power Down) - Port keeps
output coupling caps charged if port uses caps.
1
0
NA
NA
Yes
Active - Port enabled as input
1
0
NA
NA
No
Inactive (Power Down) - Port keeps output coupling
caps charged if port uses caps.
currently used by DAC, mixer,
0
1
beep, or is traditional line or
headphone output
NA
0
1
not currently used by DAC, mixer,
beep and is capless HP/BTL port
Active - Port enabled as output
Inactive (Power Down)
0
0
NA
NA
NA
Inactive (Power Down) - Port keeps output coupling
caps charged if port uses caps.
1
1
NA
NA
Don't care
Not allowed. Inactive (Power Down) - Port keeps
output coupling caps charged if port uses caps.
1
0
NA
NA
Don't care
Inactive (Power Down) - Port keeps output coupling
caps charged if port uses caps.
0
1
currently used by DAC, mixer,
beep, or is traditional line or
headphone output
Don't care
Low power state. If enabled, Beep will output from
the port
0
1
not currently used by DAC, mixer,
beep and is capless HP/BTL port
Don't care
Inactive (Power Down)
0
0
NA
NA
Don't care
Inactive (Power Down) - Port keeps output coupling
caps charged if port uses caps.
-
-
Inactive (lower power) - Port keeps output coupling
caps charged if port uses caps.
-
-
Inactive (lower power) - Port keeps output coupling
caps charged if port uses caps.
-
-
Off - Charge on coupling caps (if used) will not be
maintained.
Table 2. Analog Output Port Behavior
IDT CONFIDENTIAL
12
©2009 INTEGRATED DEVICE TECHNOLOGY, INC.
V1.2 1/12
92HD99