92HD66B Datasheet, PDF (44/286 Pages) Integrated Device Technology – FOUR CHANNEL HD AUDIO CODECS

92HD66B
FOUR CHANNEL HD AUDIO CODECS WITH DUAL CAPLESS HEADPHONE AMPLIFIERS
5. FUNCTIONAL DIAGRAMS
5.1. 48-pin Package
Stream &
Channel
Select
Digital
Mute
Stream &
Channel
Select
Digital
Mute
Stream &
Channel
Select
Digital
Mute
ADC0
ADC1
ADC0
ADC1
Stream &
Channel
Select
SPDIF IN to PCM
PCM to SPDIF OUT
PCM to SPDIF OUT
vol
Digital
Mute
DAC 0
Stream &
Channel
Select
Stream &
Channel
Select
vol
Digital
Mute
DAC 1
ADC0
-16 to +30 dB
In 1 dB steps
mute
Gain
vol
Stream &
Channel
Select
ADC1
-16 to +30 dB
In 1 dB steps
mute
Gain
vol
Mixer
MixerOutVol
mute
Vol
-46.5 to 0 dB
In 1.5 dB steps
mute vol
mute vol
Σ
mute vol
mute vol
mute vol
mute vol
mute vol
-34.5 to +12 dB
In 1.5 dB steps
SPDIF IN
Pin 45
SPDIF OUT1
GPIO 3
DMIC 1
Pin 46
SPDIF OUT0
GPIO 0
DMIC 1
Pin 48
Digital PC Beep
MixerOutVol
DAC0
DAC1
Digital PC Beep
MixerOutVol
DAC0
DAC1
Digital PC Beep
Analog Beep
Σ
Port A
Analog Beep
Σ
Port B
Analog Beep
HP
Boost
+0/+10/+20/+30 dB
HP
Boost
+0/+10/+20/+30 dB
DAC0
MixerOutVol
DAC0
DAC1
Digital PC Beep
Σ
Port C
Analog Beep
LO
Boost
+0/+10/+20/+30 dB
DAC1
Mixer
Port A
Port B
Port C
Port E
Port F
DMIC0
DMIC1
Mixer
Port A
Port B
Port C
Port E
Port F
DMIC0
DMIC1
MixerOutVol
DAC0
DAC1
Digital PC Beep
MixerOutVol
DAC0
DAC1
Σ
Port E
Analog Beep
Σ
Port F
LO
Boost
+0/+10/+20/+30 dB
HP
Boost
+0/+10/+20/+30 dB
Digital Microphone
volume and mute is
done after the ADC
but shown here and
in widget list as
same as analog
path.
DMIC_0
DMIC_1
+0/+10/+20/+30 dB
Boost
DMIC
Boost
DMIC
+0/+10/+20/+30 dB
DAC0
DAC1
Port A
Port B
Port C
Port E
Port F
Beep_Active
Detect/Convert
Analog Beep
mute vol
0,-6,-12,-18dB
To all ports enabled as output
Analog PC_BEEP
Figure 10. 48-pin Package Functional Diagram
Mic Bias
PORT A
Pin Complex
Pins 28/29/40/41
Mic Bias
PORT B
Pin Complex
Pins 31/32/43/44
Mic Bias
PORT C
Pin Complex
Pins 19/20
Mic Bias
PORT E
Pin Complex
Pins 15/16
No Bias
PORT F
Pin Complex
Pins 17/18
DMIC_0
Pin 4
DMIC_1
Pin 46 or 48
44
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92HD66B