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For Analog Audio Processors, What type of product is Hi-VOL type?
Typical output of analog audio processors is about 2Vrms. Hi-VOL type can output 3 to 5Vrms.
For Analog Audio Processors, How should unused output pins be handled?
Unused output pins can be left OPEN.
For Analog Audio Processors, Why is the noise level higher when EQ is on than when EQ is off?
When the EQ is off, the signal does not pass through the equalizer circuit.
For Analog Audio Processors, Is power-on reset function built into all products?
Not built into BD34700FV, BD34701KS2, BD381x series, and BD3843FS.
For Analog Audio Processors, Are there products that only have a volume function?
Yes, there are. BD34602FS-M, BD346x series, BD381x series, and BD384x series are applicable.
12V输入，给3节锂电池（12.6V）充电的充电管理芯片有吗？电流2A即可。
推荐ROHM品牌的锂电池充电管理芯片：BD99954MWV，支持最多4节锂电池串联充电方式，产品带通讯接口。详细参数看如下链接 1 to 4-Cell Li-Ion Battery Manager For Application Processors BD99954MWV, BD99954GW数据手册
你好，我们有用到ADI品牌的 LT8301ES5和ROHM的BD4840FVE-TR的IC,我们现在想找国产IC可以替代的，性能一致就可以，是否有推荐的国产品牌可以替代呢？
推荐圣邦微隔离电源芯片SGM46000（替代LT8301ES5）和复位芯片SGM706-J（替代BD4840FVE-TR），均为功能性替代，相关技术资料参考链接：SGMicro（圣邦微） SGM46000 3W主变压器和用于隔离电源H桥驱动器数据手册SGMicro（圣邦微）SGM706 Low-Cost, Microprocessor Supervisory Circuit
For Analog Audio Processors, Do I also need to set the registers to its initial values?
When power is turned on, be sure to send data to all addresses as initial data. It is also recommended to mute the device until the initial data is transmitted.
I created a library file using LIBU8, but some of them were not imported. For example, it is a source code (file) in which an interrupt function is defined. All the interrupt functions are static functions. Is it possible to create it as a library in such a case?
Files containing statically declared functions can be registered in library files. However, since it cannot be referenced from the outside, the module in the library cannot be found, and an error occurs when linking and it cannot be used. Create the function to be registered in the library as a global function.
有没有IIC接口的单节锂电池充电管理芯片。多介绍几种，还在选型。
罗姆的BD99954MWV，支持1-4节锂电池的充电管理，带通讯口控制。规格书如下：1 to 4-Cell Li-Ion Battery Manager For Application Processors BD99954MWV, BD99954GW数据手册
For Analog Audio Processors, Can a product that writes commands via I2C I/F also read back register values?
Reading of register value is not supported.
What is a offset of the rcoa_adjustOscillation function argument described in the ML62Q1000 Series RC Oscillation Correction Sample Software AP Note?
The offset is a value for adjusting the value writing to the low-speed RC oscillation frequency adjustment register. Normally, please use the fixed value 0 as with the sample software.
In the FSK mode, when continuously transmitting the modulated wave using RF_TEST_MODE, the center frequency shifts by about 3 KHz.
As described in the data sheet, when using RF_TEST_MODE in FSK mode, the modulator reads unnecessary data before the generation of the expected test data just after TX_ON is started up. Therefore, the center frequency changes. To use RF_TEST_MODE correctly, check again through the following procedure. 1. Initialization register setting 2. Execute VCO_CAL 3. TX_ON 4. After starting up TX, MODEM reset * Note: Usually, this event does not occur when transmitting packets containing DIO control. So, it is not required to perform a MODEM reset after TX_ON. This is also an event specific to FSK mode. There is no problem in GFSK mode. Related Products: ML7344/ML7406 family, ML7345 family, ML7404, ML7414
What is the appropriate interval for frequency accuracy adjustment? I want to know the detail about the adjustment operation actually performed.
The adjustment interval can be set by a customer program. It is assumed that a frequency accuracy adjustment program is executed before a process requiring high frequency accuracy such as UART communication. The frequency accuracy adjustment program executes the following: (1) Turn ON the internal temperature sensor and execute A/D conversion of sensor output. (2) Calculate an adjustment value based on the A/D conversion result. (3) Set the adjustment value to the low-speed RC oscillation frequency adjustment register (LRCADJ). Related Products: ML610(Q)40x, ML610(Q)42x, ML610(Q)47x, ML610(Q)48x, ML610Q41x, ML610Q43x, ML610Q46x, ML620Q416/ML620Q418, ML620Q503H/ML620Q504H/ML620Q506H
Is it possible to transfer data from ROM or data flash with the ML62Q1000 series DMA (Direct Memory Access) controller?
Data cannot be transferred from ROM or data flash with the ML62Q1000 series DMA. Data can be transferred between SFR (Special Function Register) and RAM. Related Products: ML62Q12xx, ML62Q13xx, ML62Q14xx, ML62Q15xx/ML62Q18xx, ML62Q16xx, ML62Q17xx
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