The AK4497 chip market is severely out of stock, and a small amount of spot shipments are in progress. . .
latest news:
- Red Core recently launched the decoder control board, which solves the problem that the decoder board can only be equipped with a player. I have previously purchased the Red Core AK4490, dual-parallel AK4495, AK4497 decoding. You can use some control boards to experiment with the independent decoder function. There is an introduction, you can contact customer service if you need it
- https://item.taobao.com/item.htm?id=572405785071
Features:
- It can only be used for the Red Core RCDP200B and RCDP300A models. It is not available for single purchase, nor can it be used for other models.
- The soft control of the decoder board is uniformly driven by the red core turntable firmware, which can realize dynamic configuration, remote control of volume, automatic identification and switching of PCM, DSD64-DSD256 and other songs of different specifications, and realize intelligent mute during switching to avoid changing songs It produces a popping sound. The effect is better than the decoder board without I2C bus.
- LPF strictly follows AKM official circuit, with balanced output(You need to guide it to the Canon seat by yourself, please see the high-definition picture below)
- The decoder board and the turntable interface are connected by I2C + I2S combined dual-bus dedicated cable.
- Op amp configuration: two JRC5534D (single op amp), two JRC5532D (dual op amp), you can replace other compatible models by yourself.
- Decoding board power supply mode(Mode switch on the board):
- (1). Single 5V power supply. The decoder board comes with a boost and two-stage voltage regulator circuit, the power supply only needs 5V, and the actual operational amplifier still works at +-double 15V
- (2). Single 5V plus AC dual 15V power supply. The power supply of the op amp is transferred to the external 15V AC, which is rectified and stabilized on the board.
- Please upgrade the turntable firmware to September 2017 and later, and automatically recognize the red core AK4490, ADK4495, AK4497 decoder board
- Most earphones can be directly driven through the adapter cable, with one level less amp and one level less interference.
- Immersion gold PCB, analog part of wafer resistance, professional PCB design, first-class materials and workmanship
- Firmware download forum: www.hifibbs.org, download in the firmware download area
A batch of 4 BC capacitors newly produced in August 2020 will be upgraded to Panasonic capacitors. Other unchanged