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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.
For Analog Audio Processors, Are there products with separate volume and input selectors?
Yes, there are. BD3706x series, BD349x series, BD3813KS, BD3861FS, BD387x series, BD3883FS, BD3403FV are applicable.
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, Is there a function to notify the host controller that PoR (power-on reset) has been applied?
There is no function to notify by pins, registers, etc.
For Analog Audio Processors, What are the benefits of using ground-isolated inputs?
The ground isolation input is effective in removing Common Mode Noise superimposed on both the signal input and GND. For example, it is effective when the same noise is on the GND side and the signal side, such as when a signal from an external device is input via RCA cables.
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
Can I use the Thermal Wizard Selection Tool without knowing my cooling requirements?
Yes. The Thermal Wizard provides four calculators for Device Cooling, Enclosure Cooling, Air Cooling and Liquid Cooling with preprogrammed examples. Each calculator has several examples to help you get started. Once you have determined the Qc value, you are able to specify the appropriate thermoelectric products.
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
What is the difference between PWR and SWR and how to select?
Due to process difference of PWR and SWR, the pulse and surge resistance feature are different. The characteristics of SWR are slightly better than PWR, but the precision performance is relatively poor. Therefore, PWR should be selected for higher precision and SWR is suitable for high characteristics requirements.
For Analog Audio Processors, For products with VOL and FADER, how can I use them to reduce output noise?
To reduce the output noise level, decrease the gain of the FADER in the second stage instead of the VOL in the first stage.
Is there any way to avoid receiving data during CCA?
To prevent data reception during CCA, follow the steps shown below. To restore data reception after CCA, be sure to return to the original setting before reception. [Procedure] (1) Setting to prevent bit synchronization from being established BANK1: 0x5C = 0x00 BANK3: 0x03 = 0x00 (2) CCA started (3) Waiting for CCA completion (4) After completion of CCA, TRX_OFF (1) Setting to establish bit synchronization BANK1: 0x5C = original value BANK3: 0x03 = original value Related Products: ML7345 family
Is there any way to avoid receiving data during CCA?
To prevent data reception during CCA, follow the steps shown below. To restore data reception after CCA, be sure to return to the original setting before reception. [Procedure] (1) Setting to prevent bit synchronization from being established BANK2: 0x03 = 0x00 BANK2: 0x0E = 0x00 (2) CCA started (3) Waiting for CCA completion (4) After completion of CCA, TRX_OFF (1) Setting to establish bit synchronization BANK2: 0x03 = original value BANK2: 0x0E = original value Related Products: ML7396 family
For Analog Audio Processors, Is power-on reset function built into all products?
Not built into BD34700FV, BD34701KS2, BD381x series, and BD3843FS.
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
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