Due to the fire in the AKM Asahi Kasei packaging factory, the cost of AKM chip out of stock has soared. Therefore, adjust (increase) the price of the AKM series and please try to buy non-AKM configurations.
Zishan suddenly came up with a USB decoder, so the U1 model was launched.
Please find out whether your mobile phone can support the USB DAC output function for the first time.
Equipped with a computer data cable + a double-head TYPEC short cable.
With so many similar products on the market, what are the characteristics of U1?
1. U1 is a 4200mAh fast charge and fast release two-way power bank, which does not consume mobile phone power, and can also quickly charge mobile phones.
U1 uses the latest fast charging chip IP5332 from Injixin,
Integrated QC2.0/QC3.0 output fast charging protocol
Integrated FCP input/output fast charge protocol
Integrated AFC input/output fast charge protocol
Integrated SFCP output fast charge protocol
Integrated MTK PE+ 1.1&2.0 output fast charging protocol
Integrated USB C DRP protocol, support input and output fast charge
Compatible with BC1.2, Apple, Samsung mobile phone fast charge
As shown in FIG,
When charging U1, plug the fast charging head cable into the CHARGE port.
When U1 is charging the mobile phone, you need to connect the dual-head TYPEC to the U1 CHARGE port and the USB port of the mobile phone.
The button is the battery indicator, and you can see the current battery by pressing it once.
2. U1 is a digital interface daughter card compatible with Italy Amanero
Zishan’s favorite dual crystal oscillator + CPLD I2S solution leads to key I2S signals for players to DIY. Just want to connect to the computer and don’t want to toss the buyer. Just unplug the battery and short-circuit J1 to make a "desktop" USB decoder. At this time, U1 is in USB DAC port to get power. The configuration of this decoder is not simple, but Amanero digital interface + full blood AK4493EQ/CS43198 + soil 9V power supply + dual OP275 + native 3.5 LineOut + pair of tube amp HIFI standard configuration It is convenient for you to connect speakers.
The default firmware is compatible with CPLD_for_1081 + firmware_2006be11
Driver compatible https://amanero.com/drivers/setupuac2.exe
Highest support
PCM 384K 32Bit
DSD256 hard solution
The linux kernel system is plugged in and ready to use. After windows is installed with the above link driver, the playback software selects DSD: WASAPI output, which directly supports DSD256
3. U1 is an Android Apple "little tail"
Android phones directly use dual TYPE-C cables, one end is connected to the phone TYPE-C port, and the other end is connected to the U1 USB DAC port. Generally, use Haibei to turn on the USB exclusive or USB Audio Player PRO, etc. Please note that there are many Android phone models and system versions. Many, not necessarily all support USB DAC output, these are Zishan can not control, you need to toss the buyer himself, it is recommended to understand whether your mobile phone can support USB DAC output, U1 only guarantees to connect to the computer.
Android software link: https://pan.baidu.com/s/1IWEaVzzjQA52NEBHMjGgUw
Extraction code: 2zpn
Apple mobile phones need to buy a Lighting to Type-C cable, or buy an Apple camera kit, one end is connected to the iPhone’s lighting port and the other is connected to the U1 USB DAC port, the Apple plug is the USB DAC output, and the playback software is free. If it is not recognized or used It is disconnected after tens of seconds, which indicates that the decryption chip in the pro-Lighting to Type-C cable or the camera set is pirated, and it is recommended to re-purchase.
The profit is meager, and the connection to the Apple cable is not standard, and you need to buy it separately.
4. Not enough to mention but have to mention
1). Smart power on and off, plug in the USB DAC, U1 will automatically power on, the indicator light is at the knob, and the cable will automatically power off.
2). The power of the high-voltage op amp will be automatically turned off when the minimum volume is 5 minutes, the power will be automatically turned off when the minimum volume is 20 minutes, and the volume will be automatically restored
3). Low battery automatic shutdown
4). The physical relay is muted without any electronic switch
5). All-aluminum knob with good feel, the master ADC acquisition knob and then numerical control AK4493EQ volume, completely solve the problem of knob bias.
6). There is no pattern on the main body, and the user can play at will.
7). 12 hours + battery life
Hardware block diagram
overall appearance
Zishan long-winded
Will the kit be released?
Zishan didn&x27;t release the kit and didn&x27;t explain.
How long will it last?
12 hours.
What is her measurement?
The width is 100mm, the length is 50mm, and the thickness is 20mm.
Is there a QQ exchange group?
2000 people Q group 3 number: 163869292 559440998.
Can the machine be guaranteed?
The warranty has been maintained until the store is closed. Generally, it is repaired free of charge. If the fragile label is broken (the machine has been disassembled), the buyer needs to pack the return shipping fee. The freight AA has not been dismantled.
Zishan, are you GG or MM, are you married?
Sorry, Zi Shan is GG, and "Zi Shan" is a name I like very much.
Zishan Remarks
In the dead of night, when sleeping late on weekends, when lying in the grass, Zishan will take it out, put on headphones, and no matter the flowers and leaves in the world, there is enough for you.