92hdw74c2 Integrated Device Technology, 92hdw74c2 Datasheet - Page 38

• Manufacturer Part Number: 92hdw74c2
• Description: Six Channel Hd Audio Codec
• Manufacturer: Integrated Device Technology

SIX CHANNEL HD AUDIO CODEC
4. FUNCTIONAL BLOCK DIAGRAMS
92HDW74C2
SIX CHANNEL HD AUDIO CODEC
MixerOutVol
InMUX0
InMUX1
Stream &
Stream &
Stream &
Stream &
Stream &
Stream &
Stream &
Channel
Channel
Channel
Channel
Channel
Channel
Channel
Select
Select
Select
Select
Select
Select
Select
mute
-46.5 to 0 dB
In 1.5 dB steps
Digital
Digital
Mute
Mute
Mixer
Vol
ADC0
ADC1
Port A
Port B
Port D
Port F
Port A
Port E
Port G
Port H
ADC0
ADC1
Σ
InMUX2
InMUX3
mute
mute
vol
vol
vol
+0 to +22.5 dB
In 1.5 dB steps
+0 to +22.5 dB
In 1.5 dB steps
Gain
Gain
Digital
Digital
Digital
Mute
Mute
Mute
Figure 11. Functional Block Diagram
mute
mute
mute
mute
mute
-34.5 to +12 dB
In 1.5 dB steps
SPDIF OUT
vol
vol
SPDIF IN
to PCM
PCM to
Port B
Port C
Port G
Port H
DAC0
DAC1
DAC2
DAC 0
DAC 1
DAC 2
vol
vol
vol
vol
vol
CD
InMUX0
InMUX1
InMUX2
InMUX3
DMIC0
DMIC1
DMIC0
DMIC1
Port A
Port B
Port C
Port D
Port E
Port F
Port G
Port H
Port A
Port B
Port C
Port D
Port E
Port F
Port G
Port H
Mixer
Mixer
CD
CD
DAC0
DAC1
DAC2
38
To all ports
enabled as
output
MixerOutVol
MixerOutVol
MixerOutVol
MixerOutVol
MixerOutVol
MixerOutVol
MixerOutVol
MixerOutVol
DAC0
DAC1
DAC2
DAC0
DAC1
DAC2
DAC0
DAC1
DAC2
DAC0
DAC1
DAC2
DAC0
DAC1
DAC2
DAC0
DAC1
DAC2
DAC0
DAC1
DAC2
DAC0
DAC1
DAC2
Digital PC Beep
Digital PC Beep
Digital PC Beep
Digital PC Beep
Digital PC Beep
Digital PC Beep
Digital PC Beep
Digital PC Beep
Digital Microphone volume and mute is
done after the ADC but shown here and in
widget list as same as analog path.
EAPD/SPDIF_IN
SPDIF OUT0
Pin 47
Pin 48
Analog Beep
Analog Beep
Analog Beep
Analog Beep
Analog Beep
Analog Beep
Analog Beep
Analog Beep
Port D
Port A
Port B
Port C
Port E
Port G
Port H
Port F
DMIC_0
DMIC_1
CD
Σ
Σ
Σ
Σ
Σ
Σ
Σ
Σ
mute
-6,-12,-18, -24 dB
92HDW74C2
+0/+10/+20/+30 dB
+0/+10/+20/+30 dB
+0/+10/+20/+30 dB
+0/+10/+20/+30 dB
+0/+10/+20/+30 dB
+0/+10/+20/+30 dB
+0/+10/+20/+30 dB
+0/+10/+20/+30 dB
+0/+10/+20/+30 dB
+0/+10/+20/+30 dB
vol
Boost
Boost
HP
HP
HP
LO
LO
LO
LO
LO
Boost
Boost
Boost
Boost
Boost
Boost
Boost
Boost
(Vendor Specific)
DMIC
DMIC
Analog PC_BEEP
PORT D
Pin Complex
Pins 35/36
PORT A
Pin Complex
Pins 39/41
PORT B
Pin Complex
Pins 21/22
PORT C
Pin Complex
Pins 23/24
PORT E
Pin Complex
Pins 14/15
PORT F
Pin Complex
Pins 16/17
PORT G
Pin Complex
Pins 43/44
PORT H
Pin Complex
Pins 45/46
CD
Pin Complex
Pins 18/19/20
Mic Bias
Mic Bias
Mic Bias
Mic Bias
No Bias
No Bias
No Bias
No Bias
DMIC_0
DMIC_1
Pin 2
Pin 3
(Port I)
PC AUDIO
V 1.0 03/08