92HD93 Datasheet, PDF (49/302 Pages) Integrated Device Technology – SINGLE CHIP PC AUDIO SYSTEM

92HD93
SINGLE CHIP PC AUDIO SYSTEM, CODEC+SPEAKER AMPLIFIER+CAPLESS HP+LDO
4. FUNCTIONAL BLOCK DIAGRAM
Digital PC Beep
Analog Beep
Stream &
Channel
Select
Stream &
Channel
Select
ADC0
ADC1
ADC0
ADC1
PCM to
SPDIF OUT
MixerOutVol
DAC0
SPDIF OUT1
DAC1
(shared)
Pin 46

HP
Port A
Boost
+0/+10/+20/+30 dB
PCM to
SPDIF OUT
SPDIF OUT0
Pin 48
Digital PC Beep
DAC0_Dig
MixerOutVol
DAC0
DAC1
Analog Beep
Cap-less

HP
Stream &
Channel
Select
Stream &
Channel
Select
vol
Digital
Mute
vol
Digital
Mute
DAC 0
DAC0
DAC1_Dig
DAC 1
DAC1
Digital PC Beep
MixerOutVol_Dig
DAC0_Dig
DAC1_Dig
Digital PC Beep
MixerOutVol
DAC0
DAC1
Analog Beep

LO
Port C
Boost
+0/+10/+20/+30 dB
Analog Beep_Dig

5-band
EQ
Clocking _Class-D
Highpass
Filter
Digital
PWM
controller
BTL
Stream &
Channel
Select
ADC0
-16 to +30 dB
In 1 dB steps
mute
Gain
vol
Digital PC Beep
Analog Beep_Dig
MixerOutVol_Dig
DAC0_Dig
DAC1_Dig

Stereo to
Mono mix
Bandpass
Filter
DAC M
Mixer
Port A
Port C*
Port F
DMIC0
DMIC1
Digital PC Beep
MixerOutVol_Dig
DAC0_dig
DAC1_dig
Analog Beep

SRC
LO
I2S
Mic Bias
PORT A
Pin Complex
Pins 28/29
PORT B
Pin Complex
Pins 31/32
PORT C*
Pin Complex
Pins 19/20
PORT D
Pin Complex
Pins 40/41/43/44
Mono
Pin Complex
Pin 25
PORT E
Pin Complex
Pins 15/16
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
MixerOutVol_Dig
ADC
mute
vol
mute
vol
mute
vol
mute
vol
mute
vol
-34.5 to +12 dB
In 1.5 dB steps
Mixer
Port A
Port C*
Port F
DMIC0
DMIC1
DAC0
DAC1
Port A
Port C*
Port F
Port F
Boost
DAC 2
I2S
+0/+10/+20/+30 dB
PORT F
Pin Complex
Pins 17/18
Beep_Active
Analog Beep_Dig
Analog Beep
0,-6,-12,-18dB
mute vol
Detect/Convert
mute vol
0,-6,-12,-18dB
Analog PC_BEEP
Digital Microphone volume and mute is
done after the ADC but shown here and in
widget list as same as analog path.
+0/+10/+20/+30 dB
DMIC_0
Boost
DMIC
DMIC_1
Boost
DMIC
+0/+10/+20/+30 dB
DMIC_0
Pin 4
DMIC_1
(shared)
Pin 46
Figure 15. Functional Block Diagram
IDT CONFIDENTIAL
49
©2010 INTEGRATED DEVICE TECHNOLOGY, INC.
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92HD93