92HD66B IDT [Integrated Device Technology], 92HD66B Datasheet - Page 282

• Manufacturer Part Number: 92HD66B
• Description: FOUR CHANNEL HD AUDIO CODECS
• Manufacturer: IDT [Integrated Device Technology]

92HD66B
FOUR CHANNEL HD AUDIO CODECS WITH DUAL CAPLESS HEADPHONE AMPLIFIERS
©2011 INTEGRATED DEVICE TECHNOLOGY, INC.
VREFOUT-C
AVSS1
AVDD1
AVreg
PORTA_L (HP)
PORTA_R (HP)
PORTB_L (HP)
PORTB_R (HP)
AVSS2
V-
CAP-
CAP+
CPVreg
AVDD2
PORTA_L(IN)
PORTA_R(IN)
AVSS2
PORTB_L(IN)
PORTB_R(IN)
SPDIFIN
SPDF1/GPIO0/
DMIC1
EAPD
SPDF0/GPIO3/
DMIC1
Pin Name
Reference Voltage out drive (intended
for mic bias)
Analog Ground
Analog Vdd=5.0V or 3.3V
Analog Core LDO decoupling cap
Port A Output Left
Port A Output Right
Port B Output Left
Port B Output Right
Analog Ground
Charge-pump negative output
Charge-pump flying cap -
Charge-pump flying cap +
Charge-pump LDO decoupling cap
Analog Supply for VREG
Port A Left Input
Port ARight Input
Analog Ground
Port B Left Input
Port B Right Input
SPDIF Input
SPDIF output, GPIO0, or digital
microphone input
External Amplifier Power-Down (active
low)
SPDIF output, GPIO3, or digital
microphone input
Pin Function
Table 32. 40-Pin Table
282
O(Analog)
O(Analog)
O(Analog)
O(Analog)
O(Analog)
O(Analog)
I(Analog)
O(Analog)
I(Analog)
I(Analog)
I (Digital)
O(Analog)
I(Power)
I(Analog)
I(Power)
I(Power)
I(Analog)
I(Analog)
I(Power)
I(Analog)
I/O(Digital)
I/O(Digital)
I/O(Digital)
I/O
Internal Pull-up
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
60K Pull-Down
60K Pull-Down
60K Pull-Up
60K Pull-Down
Pull-down
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
location
QFN
V 1.0 2/12
92HD66B