Name: Dsd Taxa de Amostra Placa Conversão Suporta Pcm Intercâmbio Suporta Entrada Dop para Amplificatore de Alta Fidelidade Ak4137 I2s
Brand: Amplificador
SKU: 32923479749
Price: 259.00 BRL
Availability: InStock

Amplificador

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Ficha técnica do produto

Características	Especificações
Número do Modelo	Ksyak4137
Tipo de Item	Circuitos
Nome da Marca	Kaisaya
Origem	CN (origem)
Tipo	Sample Rate Conversion Board

AK4137 I2S/DSD Sample Rate Conversion Board Supports PCM/DSD Interchange

1. Amplificador

The AK4137 supports PCM to PCM (convertible sampling rate and data format), DSD to DSD (conversion DSD sampling rate), PCM to DSD, DSD to PCM, DOP to PCM, DOP to DSD.

Standard crystal oscillator configuration 22.5792M 24.576M

Low frequency crystal oscillator configuration 11.2896M 12.288M

768K crystal oscillator configuration 22.5972M 49.152M

Output version sampling rate is supported by each version:

2. Conversão Suporta Pcm Intercâmbio Suporta Entrada Dop

The detailed introduction is in the standard version:

Input signal range:

PCM mode can input I2S (I2S format is also called Philips format 16-32bit), LJ (left-aligned format 16-32bit), RJ24 (right alignment is also called Sony format 24bit), RJ32 (right alignment is also called Sony format 32bit), due to The reason why the chip manufacturer designed it does not support the signal input of the right-aligned (Sony) format lower than 24 bits. DSD mode can input DSD64 DSD128 DSD256. And DOP data (DOP data is to be input in PCM mode).

The output signal range of this board:

PCM mode can output I2S format LJ (left-justified format) RJ (right-aligned format) three formats can output 16bit 20bit 24bit 32bit data 44.1K 48K 88.2K 96K 176.4K 192K 352.8K 384K sampling rate, and slave (from mode). DSD mode can output DSD64 DSD128 DSD256.

Note: When the input PCM signal is lower than 44.1K, it will not be converted to DSD, nor can it be converted to a higher sampling rate of PCM. The DSD64 DSD128 can be output when the input PCM signal is lower than 176.4K. The DSD256 cannot be output.

Board interface description:

POW interface is the power input interface (only DC 5V can not be reversed); I2S/DSD-OUT interface is I2S/DSD data output interface; I2S/DSD-IN is I2S/DSD data input interface; D/ P is the manual control PCM/DSD input mode interface (the PCM/DSD input mode can also be controlled by the 1 pin of the data input port); the K port is a special function interface; the LCDPORT is the display interface (the display is connected to the 1 pin of the board) Connect the 1 pin of the display, 2 feet to 2 feet… and so on, the middle four pins without the pin are not connected).

Note: Disconnect the D/P interface when using the I2S/DSD-IN interface 1 pin control input mode.

There are 4 buttons on the board to set the board (see below for setting method). In addition to the mute function, other functions set by the button can be powered off and the board will still work in the last set mode when it is turned on next time.

I2S/DSD-IN interface pin definition: 1 pin is DSD enable input (also called DSDON or DSDOE), 2 pin GND, 3 pin DATA/DSDL input, 4 pin BCK/DCLK input, 5 pin is empty, no connection, 6-pin LRCK/DSDR input. This board input interface does not require input MCLK to work.

I2S/DSD-OUT interface pin definition: 1 pin is DSD enable output (also called DSDON or DSDOE), 2 pin GND, 3 pin DATA/DSDL output, 4 pin BCK/DCLK output, 5 pin MCLK output, 6 pin LRCK /DSDR output. When the PCM mode is output, the 1 pin outputs a low level, and when the DSD mode is output, the 1 pin outputs a high level.

Key Function:

Button 1: Long press to switch the PCM input format (PCM input mode is valid); short press to switch the output mode.

Button 2: Long press to switch the DSD input sampling rate (DSD input mode is valid); short press to switch the PCM output sampling rate (PCM output mode is valid).

Button 3: Long press the switching filter mode; short press to switch the number of PCM output bits (PCM output mode is valid).

Button 4: Long press is the jitter switch; short press the mute switch.

Feature:

Power supply: DC5V (DC voltage 5V connected to AC will cause board damage) Voltage range 4.8-5.5V (Exceeding this range will cause the board to be damaged or not working properly).

The input signal supports a 3.3V level of 5V level; the output signal is 3.3V level.

PCB board size: 5.2cm x 6.3cm

The display is a standard 1602 display

The two crystal oscillators on the board are powered by a precision LDO, and one of them shuts down the other power supply to reduce interference.

K port except the 1st 2nd (K1, K2) other interfaces, please try not to use it yourself.

Package:

1pcs

Detailed usage description:

First turn on the power, POW interface connected to 5V power supply voltage range 4.8-5.5V (power supply connection is not much to say, understand the basics of the circuit know how to connect, need to pay attention to the voltage range is not reversed) .

Enter the relevant settings:

Set the signal input mode: First, determine whether the input signal is DSD signal or PCM (I2S) signal. The input mode can be set through the D/P interface. Short-circuit D/P interface input signal mode works in PCM (I2S) mode, disconnected. The D/P interface input mode works in DSD mode. The input mode can also be controlled by the I2S/DSD-IN interface pin 1. The I2S/DSD-IN interface 1 pin inputs the low level for the PCM input mode, and the input high level for the DSD input mode. It should be noted that the D/P interface must be disconnected when using the I2S/DSD-IN interface 1 pin control input mode (not to be shorted, otherwise it can only work in PCM mode and may cause damage to the device providing DSDON/DSDOE signal). When you need to input the DOP signal, you must also configure the input interface to PCM mode.

Set the signal input format, etc.: In the PCM input mode, you can switch the format of the input data by long pressing the button 1. Each long press changes the format of an input signal, and the corresponding line in the first line of the display screen is &I&. The format of the input will be displayed at the back and will have a power-down memory function. Input formats include I2S, LJ, RJ24, RJ32, DOP, and cyclic switching. In the DSD input mode, the input DSD sampling rate can be switched by long pressing the button 2 and the corresponding display will be displayed after the first line of the display &I&, with power-off memory. DSD inputs include DSD64, DSD128, DSD256, and cyclic switching. In addition, the DSD sampling rate of the input can also be switched by K port K1 K2 (see Table 1 below). It should be noted that K1 K2 needs to be disconnected when the input DSD signal is switched by long pressing button 2 (K1 K2 is all disconnected) The vacant state will otherwise use the K1 K2 to configure the sampling rate of the DSD input). K1 K2 can automatically switch the input DSD sampling rate when paired with the Italian interface (K1 is connected to the Italian interface 18 feet, K2 is connected to the Italian interface 19 feet)!

3. High Quality Eletrônicos

Note: 0 is the input low level (0V) and 1 is the input high level (3.3V).

Output related settings:

Set the output format, etc.: Switch the output signal format by pressing button 1 shortly. The formats that can be set include I2S format, LJ (left alignment), RJ (right alignment), DSD64, DSD128, DSD256, and cyclic switching with power-off memory. There is an associated display on the second line of the screen.

Set the sampling rate of the PCM output mode (this function PCM output mode is valid, DSD output sampling rate is switched by short pressing button 1): Switch the output signal sampling rate by short pressing button 2, the settable sampling rate includes 44.1K, 48K, 88.2K, 96K, 176.4K, 192K, 352.8K, 384K, SLA (slave slave mode output), cyclic switching with power-off memory and related display on the second line of the screen.

Set the number of bits in the PCM output mode (can be set in all PCM data formats): Switch the number of bits of the output signal by pressing button 3 shortly. The number of bits that can be set includes 16bit, 20bit, 24nit, 32bit (other bits are not supported). ), loop switching with power-down memory and related display on the second line of the screen.

Other settings:

Digital filter setting: Switch the digital filter mode by long pressing button 3. This setting has power-off memory and will be displayed in the second half of the first line of the screen. The display contents are DF1, DF2, DF3, DF4, corresponding to the filter mode in Table 2 below.

4. Eletrônicos

Jitter setting (add jitter to the signal): Set the dithering switch by long pressing button 4. After long press, the last two digits of the second line of the screen display &DT& to turn on the dithering function. After long press, the last two digits of the second line of the screen are displayed.& DT &disappears to turn off jitter. This feature has a power-down memory.

Mute setting: Setting method Short press button 4 The last line of the first line of the screen displays &MT& to mute, and short press &MT& again to cancel the mute normal play. This function does not have power-off memory.