92hd81 Integrated Device Technology, 92hd81 Datasheet - Page 290

• Manufacturer Part Number: 92hd81
• Description: Single Chip Pc Audio System
• Manufacturer: Integrated Device Technology

SINGLE CHIP PC AUDIO SYSTEM, CODEC+SPEAKER AMPLIFIER+CAPLESS HP+LDO
PORTB_R (HP1)
AVSS
V-
CAP-
CAP+
VREG
AVDD2
PVDD
PORTD_+L
PORTD_-L
PVSS
PORTD_R-
PORTD_R+
PVDD
DMIC1/GPIO/
SPDIFOUT1
EAPD
SPDIFOUT0
92HD81
SINGLE CHIP PC AUDIO SYSTEM, CODEC+SPEAKER AMPLIFIER+CAPLESS HP+LDO
Pin Name
Port B Output Right
Analog Ground
Negative analog supply
Chargepump cap -
Chargepump cap +
Linear Regulator Output (2.5V) filter cap
Analog Supply for VREG
Analog Supply for Class-D amp
BTL amp Left +
BTL amp Left -
Analog Ground
BTL amp Right -
BTL amp Right +
Analog Supply for Class-D amp
Digital Microphone input, SPDIF Output, or GPIO0
EAPD
SPDIF0
Pin Function
Table 26. Pin Table
290
I/O(Analog)
I(Analog)
O(Analog)
O(Analog)
O(Analog)
O(Analog)
I(Analog)
I(Analog)
O(Analog)
O(Analog)
I(Analog)
O(Analog)
O(Analog)
I(Analog)
I/O(Digital)
I/O (Open
Drain Digital)
O(Digital)
I/O
92HD81
None
None
None
None
None
None
None
None
None
None
None
None
None
None
Pull-up 60K with GPIO
Pull-down 60K with DMIC
or SPDIFOUT
Pull-up 60K
60K internal pull-down
Pull-up/Pull-down
Internal
PC AUDIO
V 0.97 01/09
location
48 pin
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48