Now that iAUDIO 7 has reached the end of the bottom, every hard-core iAUDIO fan may be unable to hold back and prepare for the final one. The reputation of "Sound King" has been praised for nearly two years. Why do you always have a strong interest in it? Craving? Today, let us completely uncover the structure inside it, and see what ink in the belly of "King of Sound" deserves us crazy!
I7 is not difficult to disassemble, just unscrew the four corner screws, and then carefully turn the buckle on the edge. The battery is embedded in the back, and a wire is connected to the circuit board.
Because the battery is glued to the back and is relatively tight, from the shape and size of the battery, we found the secret of the I7's 60-hour playback capability.
The previous I6 battery was only half the size of the I7, and the other half was used to place the hard drive. And because I7 uses flash memory as the storage medium, the flash memory is soldered on the circuit board, so the battery is twice the size of the I6, plus the flash memory is more power-saving than the hard disk, and the power of the I7 is also reduced It's no surprise that its playback time can reach 60 hours.
Then remove the three screws on the circuit board, and I7 is basically disassembled. Looking at the entire circuit board, it can be seen that its design is very good. The circuit board has a relatively compact chip arrangement, meticulous workmanship and eight-layer PCB (Printed circuit board) ensures the stability of the circuit. From tantalum capacitors to crystal oscillators, they are all famous brands.
I7 uses TELECHIPS TCC771L as the main control chip. There is an empty chip position on the circuit board, which is the location of the flash memory. 4G flash memory is embedded on one side, and 8G is a double-sided structure. The layout of this side of the main control chip is relatively simple. Looking at the other side, the circuit space here is much more compact, with many chips distributed. Among them, the power chip uses Philips' PCF50606HN, which provides a full guarantee for the I7's long playback time. Off-topic, even the D2 also uses this PCF50606HN chip. Therefore, the sound performance and long playing time of "Zun Wang" and "Ying Wang" can be imagined.
In addition, I7 flash memory uses Samsung's 4G single-sided particles, below the flash memory is the control chip, model K4M28163PH. And a model LW052A on the flash memory is used for dual four-channel simulation. The Philips TEA5767 FM chip that was previously used on the I6 was not used on the I7. The Sanyo V24020 chip was replaced by a VQLP package with a volume of only 5.0X5.0X0.8 mm, which is common in some high-end portable devices. The new generation of radio chip has a strong anti-interference ability, no longer requires complex external filter circuit as before, and the function is more abundant.
Briefly introduced the internal structure of I7, how? Do people who understand it double their pride, and those who do n’t understand it again and again? The charm of I7 is that it completely subverts the design and development concept of ordinary digital walkman from the sense of hearing. The words "only for the discerning ears" are correct. Hurry up, the original Korean iAUDIO 7 is waiting for you to collect it!
Split Core Current Transformer
SCT 016 split core Current Transformer is widely used in measuring, electric power system, industrial control and other automation part. The hole diameter is 16mm. Input current can from 80 A to 120 A, and out put can be current and voltage. Current from 20mA to 1A, and voltage usually is 0.33V. Also we have terminal and wire lead out which is convenient and flexible. The accuracy class is 0.5%. we have exported to Europe countries, America and India. and got many good feedback from them.
split core current transformer
- Lock type Crimping terminal output Suspension installation
- Measure current range: 5A~600A
- current Work voltage: 720V Flame resistance: UL94-V0
- Operation temperature: -25℃~+60℃
- Storage temperature: -30℃~+90℃
- Dielectric strength: AC 3500V/1min(between output and shell)
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Isolation resistance: ˃100MΩ(500V DC) (between primary and secondary)
Core material: Nanocrystalline core 1K107 SCT016 Typical graph
Core loss graph
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Model
Rated measure current
Accuracy
Rated output
Work
frequency
SCT016 120A 0.5/1 40mA 50-1KHz
We attend Electrical exhibition In India, Germany and Brizil, South Korea...
All of our material meet the RoHs, UL , SGS, CE certification
FAQ
1-MOQ?
We will work hard to fit your MOQ .Small purchase quantity is ok.
2-Payment term?
T/T, Western Union, Paypal, Credit Card
3-Delivery port?
Shenzhen, Guangzhou, Zhongshan, Hongkong.
4-Shipping date?
About 7 days when we check the payment.
5-Do you produce the core and bobbin by yourself .
Yes.we have 2 head company,1 subsidiary company.one is bobbin factory,one is core factory,last one is transformer factory.
6-Where is your factory?
In ShaanxI
Split Core Current Transformer,Open Type Current Sensor,High Accuracy Current Transformer,Measuring Split Current Transformer
Shaanxi Magason-tech Electronics Co.,Ltd , https://www.magason-tech.com