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參數(shù)資料
| 型號： | HT82A850R |
| 廠商： | Holtek Semiconductor Inc. |
| 英文描述： | Audio MCU |
| 中文描述： | 音頻控制器 |
| 文件頁數(shù)： | 3/41頁 |
| 文件大小： | 296K |
| 代理商： | HT82A850R |
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Pin Assignment
Pin Description
Pin Name
I/O
Description
PA0~PA7
I/O
Bidirectional 8-bit input/output port. Each bit can be configured as a wake-up input by a con-
figuration option. Software instructions determine if the pin is a CMOS output or a Schmitt
trigger input. Pull-high resistor can be connected to the pins via configuration options - nib-
ble option.
AVDD2
Audio power amplifier positive power supply
ROUT
O
Right driver analog output
LOUT
O
Left driver analog output
AVSS2
Audio power amplifier negative power supply, ground
AVSS1
Audio DAC negative power supply, ground
BIAS
A capacitor should be connected between this pin and ground for half-supply stability
MUSIC_IN
I
Power amplifier signal source if register bit SELW = 1 . The analog signal input will be am-
plified by the power amp then output to pins ROUT and LOUT at the same time.
AVDD1
Audio DAC positive power supply
AVDD3
ADC positive power supply
VAGRef
O
ADC analog ground reference voltage - should be left open or connected via a bypass ca-
pacitor (Ex:100pF) to ground
VAG
O
ADC analog ground voltage - should be connected via a bypass capacitor (Ex:1 F) to
ground
TI+
I
OP AMP non-inverting input
TI-
I
OP AMP inverting input
TG
O
OP AMP gain setting output
AVSS3
ADC negative power supply, ground
PB0~PB7
I/O
Bidirectional 8-bit input/output port. Software instructions determine if the pin is a CMOS
output or a Schmitt trigger input. Pull-high resistor can be connected to the pins via configu-
ration options - nibble option.
DVSS2
Negative digital & I/O power supply, ground
PC7/SCK
I/O
Can be software optioned as a bidirectional input/output or serial interface clock signal.
HT82A850R
Rev. 1.10
3
July 25, 2007
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| HT82A851R | USB Audio MCU |
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相關(guān)代理商/技術(shù)參數(shù) |
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| HT82A851R | 制造商:HOLTEK 制造商全稱:Holtek Semiconductor Inc 功能描述:USB Audio MCU |
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| HT82B40R | 制造商:HOLTEK 制造商全稱:Holtek Semiconductor Inc 功能描述:I/O MCU with USB Interface |
| HT82B40R_11 | 制造商:HOLTEK 制造商全稱:Holtek Semiconductor Inc 功能描述:I/O MCU with USB Interface |
| HT82B42R | 制造商:HOLTEK 制造商全稱:Holtek Semiconductor Inc 功能描述:I/O MCU with USB Interface |
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