92hd98 Integrated Device Technology, 92hd98 Datasheet - Page 13

• Manufacturer Part Number: 92hd98
• Description: Datasheet
• Manufacturer: Integrated Device Technology

92HD98
SINGLE CHIP PC AUDIO SYSTEM, CODEC+MONO SPEAKER AMPLIFIER+CAPLESS HP+LDO
IDT CONFIDENTIAL
©2009 INTEGRATED DEVICE TECHNOLOGY, INC.
Power
D3cold
D0-D2
State
AFG
D3
D4
D5
Enable
Input
1
1
1
0
0
0
1
1
0
0
0
-
-
-
Output
Enable
1
0
0
1
1
0
1
0
1
1
0
-
-
-
Output ports are always on to prevent pops/clicks associated with charging and discharging output
coupling capacitors. This maintains proper bias on output coupling caps even in power state D3 as
long as AVDD is available. Unused ports should be left unconnected. When updating existing
designs to use the 92HD98 codec, ensure that there are no conflicts between the output ports on the
codec and existing circuitry.
Used as output
not currently used by DAC, mixer,
not currently used by DAC, mixer,
for DAC/Mixer
beep and is capless HP/BTL port
beep and is capless HP/BTL port
currently used by DAC, mixer,
currently used by DAC, mixer,
Don't care
beep, or is traditional line or
beep, or is traditional line or
NA
NA
NA
NA
NA
NA
headphone output
headphone output
Table 2. Analog Output Port Behavior
Used as output
for analog
Don't care
PC_Beep
NA
NA
NA
NA
NA
NA
ADC, mixer
13
Don't care
Don't care
Don't care
Don't care
Don't care
input for
Used as
Yes
Yes
NA
NA
No
No
Inactive (Power Down) - Port keeps output coupling
Inactive (Power Down) - Port keeps output coupling
Inactive (Power Down) - Port keeps output coupling
Inactive (Power Down) - Port keeps output coupling
Inactive (lower power) - Port keeps output coupling
Inactive (lower power) - Port keeps output coupling
Low power state. If enabled, Beep will output from
Off - Charge on coupling caps (if used) will not be
Not allowed. Inactive (Power Down) - Port keeps
Not allowed. Inactive (Power Down) - Port keeps
output coupling caps charged if port uses caps.
output coupling caps charged if port uses caps.
Not allowed. Port is active as input.
caps charged if port uses caps.
caps charged if port uses caps.
caps charged if port uses caps.
caps charged if port uses caps.
caps charged if port uses caps.
caps charged if port uses caps.
Active - Port enabled as output
Active - Port enabled as input
Inactive (Power Down)
Inactive (Power Down)
Port Behavior
maintained.
the port
V 0.91 10/10
92HD98