
29
V 1.3 08/11
2011 INTEGRATED DEVICE TECHNOLOGY, INC.
92HD73E
Ten Channel HD Audio Codec
4.2.
40QFN
Figure 10. 40QFN Functional Block Diagram
Stream &
Channel
Select
DAC 0
Stream &
Channel
Select
Stream &
Channel
Select
HD
Au
di
oLIN
K
L
OGIC
PCM to
SPDIF OUT
SPDIF OUT0
vol
Pin Complex
Pins 29/30
DAC 1
vol
PORT D
Digital
Mute
Digital
Mute
V
end
or
S
pe
cif
ic
MUX
ADC0
Pin 1
No Bias
MUX
ADC1
MU
X
MU
X
Pin Complex
Pins 33/34
PORT A
Mic Bias
Σ
vol
mute
vol
mute
vol
mute
CD
vol
mute
Analog PC_BEEP
DAC0
DAC1
MixerOut
Vol
EAPD/
SPDIF_IN
Stream &
Channel
Select
DAC 2
vol
Digital
Mute
MUX
DAC2
Stream &
Channel
Select
DAC 3
vol
Digital
Mute
MUX
DAC3
Stream &
Channel
Select
DAC 4
vol
Digital
Mute
MUX
DAC4
Pin Complex
Pins 13/14
PORT F
No Bias
Pin Complex
Pins 36/37
PORT G
No Bias
Pin Complex
Pins 38/39
PORT H
No Bias
Stream &
Channel
Select
SPDIF IN to
PCM
Pin Complex
Pins 18/19
PORT B
Mic Bias
InMUX1
InMUX2
Pin Complex
Pins 20/21
PORT C
Pin Complex
Pins 11/12
PORT E
Mic Bias
Pin Complex
Pins 15/16/17
CD
vol
mute
InMUX0
ADC0
Stream &
Channel
Select
vol
Gain
mute
+0 to +22.5 dB
In 1.5 dB steps
Port B
InMUX0
Port D
Port F
Port A
MU
X
Pin 40
Port B
Port C
Port D
Port A
Port E
MUX
Port G
Port H
Mixer
Port F
CD
Vol
-46.5 to 0 dB
In 1.5 dB steps
InMUX3
Port E
InMUX1
Port G
Port H
Port A
MU
X
Port C
InMUX2
Port G
Port H
Port B
MUX
DAC1
InMUX3
DAC2
DAC3
DAC0
MUX
-34.5 to +12 dB
In 1.5 dB steps
Boost
+0/+10/+20/+30 dB
Port D
HP
MUX
Boost
+0/+10/+20/+30 dB
Port A
HP
MUX
Boost
+0/+10/+20/+30 dB
Port B
HP
MUX
Boost
+0/+10/+20/+30 dB
Port C
LO
MU
X
Boost
+0/+10/+20/+30 dB
Port E
LO
MU
X
Boost
+0/+10/+20/+30 dB
Port F
LO
MU
X
Boost
+0/+10/+20/+30 dB
Port G
LO
MU
X
Boost
+0/+10/+20/+30 dB
Port H
LO
CD
-6,-12,-18, -24 dB
Digital
Mute
Digital
Mute
Mixer
DAC1
MixerOutVol
DAC0
DAC4
DAC2
DAC3
MU
X
DAC1
MixerOutVol
DAC0
DAC4
DAC2
DAC3
MU
X
DAC1
MixerOutVol
DAC0
DAC4
DAC2
DAC3
MUX
DAC1
MixerOutVol
DAC0
DAC4
DAC2
DAC3
MUX
DAC1
MixerOutVol
DAC0
DAC4
DAC2
DAC3
MUX
DAC1
MixerOutVol
DAC0
DAC4
DAC2
DAC3
MU
X
DAC1
MixerOutVol
DAC0
DAC4
DAC2
DAC3
MU
X
DAC1
MixerOutVol
DAC0
DAC4
DAC2
DAC3
MU
X
mute
(Vendor Specific)
To all ports
enabled as
output
Σ
Analog Beep
Σ
Analog Beep
Σ
Analog Beep
Σ
Analog Beep
Σ
Analog Beep
Σ
Analog Beep
Σ
Analog Beep
Σ
Analog Beep
Digital PC Beep
ADC1
Stream &
Channel
Select
vol
Gain
mute
+0 to +22.5 dB
In 1.5 dB steps
Port B
Port C
Port D
Port A
Port E
MU
X
Port G
Port H
Mixer
Port F
CD
No Bias