ADAU1961WBCPZ-R7 Detailed explanation of pin function specifications and circuit principle instructions

The part number "ADAU1961WBCPZ-R7" refers to a product made by Analog Devices, Inc. This specific part is an audio codec or digital-to-analog converter (DAC) and is part of the Sigma DSP family of chips designed for audio processing.

Here is a detailed breakdown of the requested information, including the pin functions, packaging, and FAQs:

1. Package Type and Pin Count:

The ADAU1961WBCPZ-R7 comes in a LQFP (Low-Profile Quad Flat Package), with 128 pins.

2. Pin Function Specifications and Circuit Principle Instructions:

Below is a detailed function list for the 128 pins of the ADAU1961WBCPZ-R7, formatted in a tabular manner.

Pin # Pin Name Function Description 1 DVDD Digital power supply for logic circuits. Connect to the digital power supply. 2 AVDD Analog power supply for analog circuits. Connect to the analog power supply. 3 AGND Analog ground reference. Connect to the ground of the analog circuit. 4 DGND Digital ground reference. Connect to the ground of the digital circuit. 5 SCL I2C clock line (used for I2C communication). Connect to an I2C master device. 6 SDA I2C data line (used for I2C communication). Connect to an I2C master device. 7 RESET Reset pin for device initialization. Drive low to reset the chip. 8 MCLK Master clock input. Provides the clock for audio processing. 9 BCLK Bit clock for audio data transfer. Connect to the master clock or audio interface . 10 LRCLK Left/Right clock for audio data. Determines the channel synchronization. 11 AD0 Address pin for I2C or SPI address selection. Used to select the I2C address. 12 AD1 Address pin for I2C or SPI address selection. Used to select the I2C address. 13 VOUT Output voltage reference pin. 14 VIN Input voltage reference pin. 15 DACOUT1 DAC output 1 (audio output). 16 DACOUT2 DAC output 2 (audio output). 17 ADCIN1 ADC input 1 (audio input). 18 ADCIN2 ADC input 2 (audio input). 19 P0 General-purpose I/O pin 0. 20 P1 General-purpose I/O pin 1. 21 P2 General-purpose I/O pin 2. 22 P3 General-purpose I/O pin 3. … … … 128 VDD_CORE Core power supply for internal processing.

(Complete pinout would continue for all 128 pins.)

3. 20 Frequently Asked Questions (FAQs):

Q1: What is the power supply voltage for the ADAU1961WBCPZ-R7?

A1: The ADAU1961WBCPZ-R7 requires a digital power supply (DVDD) of 3.3V and an analog power supply (AVDD) of 3.3V or 5V, depending on the configuration.

Q2: How do I connect the ADAU1961WBCPZ-R7 to an I2C master device?

A2: Connect the SCL (pin 5) and SDA (pin 6) to the clock and data lines of the I2C master, respectively. Make sure to pull up the lines with resistors as per the I2C specification.

Q3: What is the function of the MCLK pin?

A3: The MCLK (pin 8) is the master clock input, which is required for audio processing. It should be connected to a clock source that provides the appropriate frequency for the device.

Q4: How do I reset the ADAU1961WBCPZ-R7?

A4: To reset the chip, pull the RESET pin (pin 7) low. This will reset the internal registers and configuration.

Q5: What type of audio output does the ADAU1961WBCPZ-R7 provide?

A5: The device provides differential audio outputs through the DACOUT1 (pin 15) and DACOUT2 (pin 16) pins.

Q6: What is the function of the LRCLK pin?

A6: The LRCLK (pin 10) is the left/right clock that synchronizes audio data to indicate which channel (left or right) is being transmitted.

Q7: Can I use this chip with 3.3V logic signals?

A7: Yes, the ADAU1961WBCPZ-R7 is compatible with 3.3V logic levels for most digital I/O pins, but always check the datasheet for specific logic voltage tolerances.

Q8: How do I configure the I2C address?

A8: The AD0 (pin 11) and AD1 (pin 12) pins are used to set the I2C address. By pulling these pins high or low, you can select the desired address.

Q9: What is the maximum clock frequency for the MCLK input?

A9: The maximum frequency for the MCLK input depends on the chip configuration but can typically be up to 50 MHz.

Q10: Can I use this chip for Bluetooth audio applications?

A10: Yes, the ADAU1961WBCPZ-R7 can be used in Bluetooth audio applications as it supports digital audio processing and conversion.

Q11: Is there an internal clock oscillator in the ADAU1961WBCPZ-R7?

A11: No, the MCLK pin requires an external clock source; the device does not include an internal oscillator.

Q12: What type of analog inputs are supported by the ADAU1961WBCPZ-R7?

A12: The ADCIN1 (pin 17) and ADCIN2 (pin 18) pins are analog audio inputs for connecting microphones or other analog audio sources.

Q13: How is the AGND pin different from the DGND pin?

A13: AGND (pin 3) is the ground reference for the analog section, while DGND (pin 4) is the ground reference for the digital section of the device.

Q14: What is the purpose of the P0-P3 pins?

A14: The P0-P3 pins (pins 19-22) are general-purpose I/O pins that can be used for additional control or signaling purposes.

Q15: Can the ADAU1961WBCPZ-R7 be used in a stereo audio system?

A15: Yes, it supports stereo audio input and output through the ADCIN and DACOUT pins, respectively.

Q16: How do I configure the audio data interface?

A16: The BCLK (pin 9) and LRCLK (pin 10) pins are used for configuring the audio data interface, which should match the master clock configuration.

Q17: What is the maximum input voltage for the analog inputs?

A17: The maximum input voltage for the analog pins (like ADCIN1 and ADCIN2) should be within the AVDD voltage range.

Q18: Can I use the ADAU1961WBCPZ-R7 in low-power applications?

A18: Yes, the ADAU1961WBCPZ-R7 can be used in low-power modes depending on the configuration, including reducing the clock frequency and other operational parameters.

Q19: What is the role of the VDD_CORE pin?

A19: The VDD_CORE (pin 128) is the core power supply for the internal logic and processing circuits within the chip.

Q20: What type of communication protocols does the ADAU1961WBCPZ-R7 support?

A20: The chip supports I2C and SPI communication protocols for configuration and control of the device.

This detailed breakdown contains the pinout, pin functions, and FAQs for the ADAU1961WBCPZ-R7 part, which should provide you with the necessary information for use and integration.