92hd98 Integrated Device Technology, 92hd98 Datasheet - Page 48

• Manufacturer Part Number: 92hd98
• Description: Datasheet
• Manufacturer: Integrated Device Technology

92HD98
SINGLE CHIP PC AUDIO SYSTEM, CODEC+MONO SPEAKER AMPLIFIER+CAPLESS HP+LDO
IDT CONFIDENTIAL
©2009 INTEGRATED DEVICE TECHNOLOGY, INC.
4. FUNCTIONAL BLOCK DIAGRAM
Stream &
Stream &
Stream &
Stream &
Stream &
Stream &
MixerOutVol_Dig
Channel
Channel
Channel
Channel
Channel
Channel
MixerOutVol
Mixer
Select
Select
Select
Select
Select
Select
mute
ADC0
ADC1
ADC0
ADC1
Vol
ADC0
ADC1
ADC
-46.5 to 0 dB
In 1.5 dB steps
Σ
vol
vol
mute
mute
Digital
Digital
Mute
Mute
-16 to +30 dB
In 1 dB steps
-16 to +30 dB
In 1 dB steps
SPDIF OUT
SPDIF OUT
Gain
Gain
PCM to
PCM to
Figure 16. Functional Block Diagram
DAC 0
DAC 1
mute
mute
mute
mute
mute
-34.5 to +12 dB
In 1.5 dB steps
vol
vol
MixerOutVol_Dig
vol
vol
vol
vol
vol
SPDIF OUT1 (shared)
SPDIF OUT0
Pin 38
Pin 40
DAC0_Dig
DAC1_Dig
Digital PC Beep
DAC0_Dig
DAC1_Dig
DAC0
DAC1
DMIC0
DMIC1
DMIC0
DMIC1
Port A
Port C
Port F
Port A
Port C
Port F
Mixer
Mixer
48
Port A
Port C
Port F
DAC0
DAC1
Analog Beep_Dig
MixerOutVol
MixerOutVol
MixerOutVol
MixerOutVol
Analog Beep_Dig
DAC0
DAC1
DAC0
DAC1
DAC0
DAC1
DAC0
DAC1
Digital PC Beep
Digital PC Beep
Digital PC Beep
Digital PC Beep
Analog Beep
Beep_Active
Σ
5-band
EQ
Analog Beep
Analog Beep
Analog Beep
Analog Beep
DMIC_0
DMIC_1
Port A
Port C
Port F
Bandpass
mute
mute
Filter
0,-6,-12,-18dB
0,-6,-12,-18dB
Digital Microphone volume and mute is
done after the ADC but shown here and in
widget list as same as analog path.
Σ
Σ
Σ
Σ
+0/+10/+20/+30 dB
+0/+10/+20/+30 dB
vol
vol
+0/+10/+20/+30 dB
+0/+10/+20/+30 dB
+0/+10/+20/+30 dB
Cap-less
Clocking
controller
Digital
PWM
Boost
Boost
Detect/Convert
Class-D
Mono
BTL
HP
HP
LO
LO
DMIC
DMIC
Boost
Boost
Boost
Analog PC_BEEP
V 0.91 10/10
PORT A
Pin Complex
Pins 23/24
PORT B
Pin Complex
Pins 26/27
PORT C
Pin Complex
Pins 15/16
PORT D
Pin Complex
Pins 35/36
PORT F
Pin Complex
Pins 13/14
Mic Bias
Mic Bias
(shared)
DMIC_0
Pin 3
DMIC_1
Pin 38
92HD98