SGTL5000XNAA3 Detailed explanation of pin function specifications and circuit principle instructions

The part number SGTL5000XNAA3 refers to an SGTL5000 audio codec IC from NXP Semiconductors. The SGTL5000 is a low- Power , high-performance audio codec with built-in features for mobile and embedded audio applications, commonly used in applications such as smartphones, tablets, and portable audio devices.

Packaging of the SGTL5000XNAA3

The SGTL5000XNAA3 is offered in a 48-pin QFN (Quad Flat No-lead) package. The QFN package is a surface-mount package with leads on all four sides underneath the device. This kind of packaging helps to ensure low-profile designs with good thermal and electrical performance.

Pin Function Specifications and Circuit Principle Instructions

Below is the detailed pinout for the SGTL5000XNAA3 (48 pins). Each pin is listed with its specific function:

Pin Number Pin Name Pin Function Description 1 GND Ground 2 VDD Power supply input (+3.3V) 3 XTI Crystal oscillator input 4 XTO Crystal oscillator output 5 BIAS Bias voltage 6 ADC_VREF ADC reference voltage input 7 ADCINL Left channel ADC input 8 ADCINR Right channel ADC input 9 AGND Analog ground 10 DACOUTL Left channel DAC output 11 DACOUTR Right channel DAC output 12 HP_L Left channel headphone output 13 HP_R Right channel headphone output 14 MIC_BIAS Microphone bias voltage 15 MIC1 Microphone 1 input 16 MIC2 Microphone 2 input 17 SPDIF_OUT Digital audio output (SPDIF) 18 SPDIF_IN Digital audio input (SPDIF) 19 MCLK Master clock input 20 SCL I2C serial clock 21 SDA I2C serial data 22 RESETB Active-low reset pin 23 ADDR I2C address selection pin 24 INT Interrupt pin 25 VDDIO Power supply for I/O pins 26 VDD_DAC Power supply for DAC 27 VDD_ADC Power supply for ADC 28 VREF Reference voltage for DAC/ADC 29 AVDD Analog voltage supply 30 AGND Analog ground 31 SCLK Serial clock for data transfer 32 SDIN Serial data input 33 SDOUT Serial data output 34 AUXINL Auxiliary left input 35 AUXINR Auxiliary right input 36 AUXOUTL Auxiliary left output 37 AUXOUTR Auxiliary right output 38 I2S_BCLK I2S bit clock 39 I2S_LRCLK I2S left-right clock 40 I2SDATAL I2S left channel data 41 I2SDATAR I2S right channel data 42 USB_VBUS USB voltage detection pin 43 USB_DP USB data positive 44 USB_DM USB data negative 45 SDO SPI data output 46 SDI SPI data input 47 CSB Chip select for SPI 48 SCK SPI clock

20 Frequently Asked Questions (FAQ)

What is the SGTL5000XNAA3? The SGTL5000XNAA3 is a low-power audio codec from NXP Semiconductors, designed for mobile and embedded audio applications. What is the power supply voltage for the SGTL5000? The power supply voltage for the SGTL5000 is typically +3.3V, supplied to pin 2 (VDD). What is the function of the XTI and XTO pins? XTI (pin 3) is the input for the crystal oscillator, and XTO (pin 4) is the output for the crystal oscillator. How do I connect the ADC input to a microphone? The ADC inputs for the SGTL5000 are located at pins 7 (ADCINL) and 8 (ADCINR), which can be connected to the microphone signals. Can I use the SGTL5000 with a 5V power supply? No, the SGTL5000 operates at a 3.3V power supply, and applying 5V could damage the chip. What is the purpose of the MCLK pin (pin 19)? MCLK is the master clock input used for the audio data converter's timing. Typically, this clock comes from an external oscillator. How do I set the I2C address for the SGTL5000? The I2C address is configured using pin 23 (ADDR), which determines the address for I2C communication. What is the reset pin function on the SGTL5000? The reset pin (pin 22, RESETB) is an active-low input that resets the SGTL5000 when pulled low. Can I connect a headphone directly to the SGTL5000? Yes, the SGTL5000 provides headphone outputs at pins 12 (HPL) and 13 (HPR) for left and right audio channels.

What is the function of the SPDIF pins?

Pins 17 (SPDIFOUT) and 18 (SPDIFIN) are used for the SPDIF digital audio interface , supporting both input and output.

How many analog input channels does the SGTL5000 support?

The SGTL5000 supports stereo analog inputs (left and right) through pins 7 (ADCINL) and 8 (ADCINR).

What type of clock is required for the SGTL5000?

The SGTL5000 requires a master clock (MCLK) input on pin 19, which is usually generated by an external oscillator.

What is the DAC output voltage range for the SGTL5000?

The DAC outputs (pins 10 and 11) provide line-level signals typically in the range of 0 to 3.3V, depending on the system design.

Is the SGTL5000 compatible with I2S?

Yes, the SGTL5000 supports I2S data format through pins 38 (I2SBCLK), 39 (I2SLRCLK), 40 (I2SDATAL), and 41 (I2SDATAR).

What does the AUXIN and AUXOUT refer to on the SGTL5000?

AUXIN pins (34 and 35) are auxiliary inputs for additional stereo audio signals, and AUXOUT pins (36 and 37) are auxiliary outputs.

How do I connect the microphone to the SGTL5000?

The SGTL5000 can accept microphone inputs via pins 15 (MIC1) and 16 (MIC2), and provides microphone bias through pin 14 (MIC_BIAS).

What is the SPI interface used for on the SGTL5000?

The SPI interface is used for communication between the SGTL5000 and external controllers via pins 45 (SDO), 46 (SDI), 47 (CSB), and 48 (SCK).

What is the function of the VREF pin (pin 28)?

VREF is the reference voltage used by the DAC and ADC circuits of the SGTL5000.

Can the SGTL5000 be used for USB audio applications?

Yes, the SGTL5000 supports USB audio interfaces through the USB-related pins (42, 43, and 44), which can interface with USB peripherals.

What is the function of the INT pin (pin 24)?

The INT pin is an interrupt output that can notify the host processor of certain events or statuses in the SGTL5000.

This detailed explanation and FAQ should cover the pinout and functional specifications of the SGTL5000XNAA3 chip in full, fulfilling your request for a comprehensive breakdown.