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Analog Devices Inc. ADAU1961WBCPZ-RL
- Part No.:
- ADAU1961WBCPZ-RL
- Manufacturer:
- Analog Devices Inc.
- Category:
- CODECS
- Package:
- 32-VFQFN Exposed Pad, CSP
- Datasheet:
-
ADAU1961WBCPZ-RL.pdf
- Description:
- IC STEREO AUD CODEC LP 32LFCSP
- Quantity:
- Payment:
- Shipping:
Inventory:3,615
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Product details
Overview
ADAU1961WBCPZ-RL from Analog Devices is a stereo, low-power, 24-bit audio codec with integrated PLL, supporting 8–96 kHz sampling rates and >98 dB SNR. It integrates dual 24-bit ADCs and DACs, six configurable analog inputs (single-ended/differential), stereo digital microphone input, and five analog output drivers-including differential stereo line outputs, single-ended stereo line outputs, and mono headphone driver-designed for automotive head units requiring AEC-Q100 qualified signal chain integrity.
For engineers reviewing the ADAU1961WBCPZ-RL datasheet, ADAU1961WBCPZ-RL pinout, ADAU1961WBCPZ-RL application, or ADAU1961WBCPZ-RL equivalent, key selection considerations include its AEC-Q100 qualification, 32-lead 5 mm × 5 mm LFCSP package, I²C/SPI control interface, 3.3 V analog/digital I/O compatibility, and support for capless headphone output with 21.1 mW per channel into 16 Ω.
Technical Context
The ADAU1961WBCPZ-RL implements a fully programmable record path with six analog input channels-each with independent PGA, mute, and gain control-and flexible mixer routing before the ADC. Its playback path features five high-fidelity output drivers with individual fine-level control, supporting AC-coupled or capless headphone configurations and stereo/mono line output modes.
Digital audio I/O supports I²S, left/right-justified, and TDM formats at up to 96 kHz, while the integrated PLL accepts 8–27 MHz input clocks and generates precise core clocks for integer and fractional sample rates. The device operates across −40°C to +105°C and includes analog ALC, microphone bias generation, and pop-and-click suppression.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Resolution | 24-bit ADC and DAC - enables high-fidelity audio capture and playback with >98 dB SNR in typical conditions. |
| Sampling Rate Range | 8 kHz to 96 kHz - supports voice, telephony, CD-quality, and high-res audio applications without external clock synthesis. |
| Power Consumption | 17 mW record / 18 mW playback at 48 kHz - enables thermally constrained automotive infotainment designs with minimal thermal management overhead. |
| Analog Inputs | 6 pins configurable as single-ended or differential - accommodates diverse microphone topologies (electret, MEMS, line-level) and eliminates need for external input conditioning circuitry. |
| Analog Outputs | 2 differential stereo line, 2 single-ended stereo line, 1 mono headphone driver - provides direct drive capability for multiple transducer types without external amplifiers. |
| Control Interface | I²C and SPI - allows integration into both resource-constrained microcontroller systems (SPI) and multi-device I²C buses with address flexibility (ADDR0/ADDR1). |
| Operating Temperature | −40°C to +105°C - meets extended automotive ambient requirements for under-dash and head unit mounting locations. |
| Qualification | AEC-Q100 Grade 2 - certifies reliability for automotive electronics with defined stress test compliance and failure rate limits. |
Pinout & Package
ADAU1961WBCPZ-RL uses a 32-lead, 5 mm × 5 mm LFCSP package with exposed pad (EP) connected internally to ground. Thermal resistance is θJA = 50.1°C/W on a 4-layer board, enabling stable operation at full load in automotive ambient conditions.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1, IOVDD | Digital I/O supply rail | 3.3 V supply for all digital pins; sets VIH/VIL thresholds and must be decoupled with 100 nF + 10 μF to DGND. |
| 2, MCLK | Main clock input | Accepts 8–27 MHz crystal or oscillator input; feeds PLL for internal clock generation across all sample rates. |
| 4, JACKDET/MICIN | Multipurpose digital input | Supports plug detection (JACKDET) or stereo digital microphone data (MICIN) - dual-function pin reduces BOM count. |
| 5, MICBIAS | Analog output | Programmable electret microphone bias voltage (1.85–3.40 V range); eliminates need for external bias circuitry. |
| 7, CM | Analog reference output | AVDD/2 common-mode reference (1.47–1.83 V); used for biasing internal circuits and external op-amp stages without loading. |
| 10–14, LINP/LINN/RINP/RINN/RAUX | Analog inputs | Six configurable analog input terminals supporting pseudo-differential, full-differential, or single-ended topologies with PGA gain control. |
| 15–21, ROUTP/ROUTN/LOUTN/LOUTP/RHP/LHP/MONOOUT | Analog outputs | Five dedicated output drivers: two differential line, two single-ended line, one mono headphone - each with independent volume and mute control. |
| 26–29, ADC_SDATA/DAC_SDATA/BCLK/LRCLK | Digital audio I/O | Full-duplex serial audio interface supporting I²S, left/right-justified, and TDM formats at up to 96 kHz. |
| 30–32, ADDR1/CDATA, SDA/COUT, SCL/CCLK | Control interface | Shared pins for I²C (SDA/SCL) and SPI (CDATA/COUT/CCLK) - enables flexible host controller selection without pin conflict. |
Key Features
| Feature | Design Value |
|---|---|
| Integrated PLL with 8–27 MHz input range | Eliminates need for external clock generators or crystals; supports all standard audio sample rates including fractional multiples of 44.1 kHz and 48 kHz. |
| Analog automatic level control (ALC) | Enables hands-free voice capture in noisy automotive cabins by dynamically adjusting input gain without software intervention. |
| Capless headphone output mode | Drives 16 Ω or 32 Ω headphones directly without DC-blocking capacitors - reduces PCB area, cost, and low-frequency distortion. |
| Software-controllable clickless mute | Prevents audible pop/noise during power-up, mute/unmute transitions, or volume changes - critical for premium audio user experience. |
| Flexible analog input mixing and routing | Allows real-time signal path reconfiguration (e.g., mic + line mix, stereo-to-mono sum) entirely in hardware, reducing DSP load. |
| GSM noise filter support | Includes design guidelines and layout recommendations to suppress cellular RF interference - essential for automotive head units near antennas. |
Applications
| Automotive Head Units | Navigation Systems |
|---|---|
Use Scenario: Central infotainment system integrating voice command, Bluetooth audio, and navigation prompts in vehicles. IC Role / Device Role / Timing Role: Audio codec handling simultaneous analog mic input (driver/passenger), digital mic input (hands-free), and stereo DAC output to speakers/headphones. Use Value: AEC-Q100 qualification ensures reliability over temperature extremes; integrated ALC maintains consistent voice capture quality despite cabin noise fluctuations. |
Use Scenario: In-vehicle navigation unit delivering turn-by-turn voice guidance and traffic alerts through built-in speakers or Bluetooth headset. IC Role / Device Role / Timing Role: Low-latency audio playback engine converting synthesized speech to analog output with minimal external components. Use Value: 96 kHz capability supports high-clarity synthetic voice; 17 mW record/18 mW playback enables fanless, compact enclosure design. |
| Rear-Seat Entertainment | Automotive Amplifiers |
Use Scenario: Dual-zone rear-seat system providing independent audio streams to passengers via wireless headphones or seatback displays. IC Role / Device Role / Timing Role: Stereo DAC with independent volume control per channel feeding headphone amplifier; digital microphone input captures rear-seat voice commands. Use Value: Capless headphone output drives 32 Ω headphones directly; TDM mode supports multi-channel expansion for future scalability. |
Use Scenario: High-fidelity Class-D amplifier module receiving digital audio from head unit and driving front/rear speakers with active equalization. IC Role / Device Role / Timing Role: Precision ADC capturing feedback signals (speaker voltage/current) for real-time closed-loop protection and compensation. Use Value: >98 dB SNR and 24-bit resolution enable accurate sensing of low-level distortion artifacts; differential inputs reject EMI in high-noise amplifier environments. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar stereo audio codec applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| AK4642EN | 24-bit stereo codec with 94 dB SNR, no integrated PLL, requires external clock source; 32-pin QFN, same 5×5 mm footprint but different pinout. | Lacks AEC-Q100 qualification and capless headphone output; suited for consumer portable audio, not automotive. | Select when cost sensitivity outweighs automotive qualification and integrated clocking needs. |
| TLV320AIC3106IRHBT | 24-bit stereo codec with 95 dB SNR, integrated PLL (8–27 MHz), AEC-Q100 Grade 3 (−40°C to +125°C), 32-pin VQFN. | Higher temperature grade but lower THD+N (−75 dB vs −90 dB typ); lacks stereo digital microphone input and mono headphone driver. | Choose for extended-temperature industrial audio or when mono headphone output is unnecessary. |
Compared with AK4642EN and TLV320AIC3106IRHBT, ADAU1961WBCPZ-RL uniquely combines AEC-Q100 Grade 2 qualification, stereo digital microphone input, capless headphone output, and >98 dB SNR in a single 32-lead LFCSP-making it optimal for space-constrained, high-integrity automotive audio endpoints where signal fidelity and integration reduce bill-of-materials complexity.
Availability
ADAU1961WBCPZ-RL is available at Aetrix Electronics and suitable for automotive head units, navigation systems, rear-seat entertainment systems, and automotive amplifiers requiring stable component supply across extended temperature ranges and long production lifecycles.
Supply support for ADAU1961WBCPZ-RL includes scheduled delivery planning, volume procurement assistance, BOM continuity management, traceable sourcing, and lifecycle availability coordination for OEM customers, industrial embedded developers, connected-device designers, and electronics production programs.
Manufacturer
Analog Devices, Inc. is a global semiconductor leader specializing in high-performance analog, mixed-signal, and digital signal processing technologies for precision instrumentation, industrial automation, and automotive systems.
The ADAU1961WBCPZ-RL belongs to Analog Devices' automotive-qualified audio codec product line, engineered specifically for infotainment and telematics applications demanding low power, high SNR, AEC-Q100 compliance, and robust EMI immunity in harsh vehicle environments.
FAQ
What is the operating temperature range of the ADAU1961WBCPZ-RL?
The ADAU1961WBCPZ-RL is rated for −40°C to +105°C operation and qualified to AEC-Q100 Grade 2 standards. This range covers under-dash, center console, and head unit mounting locations in passenger vehicles, ensuring reliable performance across seasonal and geographic extremes without derating.
Does the ADAU1961WBCPZ-RL support digital microphones?
Yes, the ADAU1961WBCPZ-RL includes a dedicated stereo digital microphone input (MICIN) on Pin 4 (JACKDET/MICIN), supporting PDM or I²S digital mic interfaces. It also provides programmable microphone bias (MICBIAS on Pin 5) for analog electret mics, offering dual-path microphone connectivity in a single device.
Can the ADAU1961WBCPZ-RL drive headphones without output capacitors?
Yes, the ADAU1961WBCPZ-RL supports capless headphone output mode using its MONOOUT pin (Pin 21) as virtual ground. In this configuration, the LHP and RHP outputs (Pins 19–20) drive 16 Ω or 32 Ω headphones directly, eliminating DC-blocking capacitors and associated size, cost, and low-frequency distortion penalties.
What clock sources does the ADAU1961WBCPZ-RL accept for its integrated PLL?
The ADAU1961WBCPZ-RL accepts external main clock inputs from 8 MHz to 27 MHz on its MCLK pin (Pin 2). The integrated PLL synthesizes all required internal clocks-including master, bit, and frame clocks-for audio sample rates from 8 kHz to 96 kHz, removing dependency on multiple crystal oscillators or external clock generators.
Is the ADAU1961WBCPZ-RL pin-compatible with other members of the ADAU196x family?
No, the ADAU1961WBCPZ-RL is not pin-compatible with other ADAU196x variants such as ADAU1962 or ADAU1966. While sharing functional similarities, differences in analog input/output configuration, digital interface mapping, and power pin assignments require unique PCB layout for ADAU1961WBCPZ-RL.
ADAU1961WBCPZ-RL Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc.
- Series:
- -
- Package/Case:
- 32-VFQFN Exposed Pad, CSP
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Type:
- Audio
- Data Interface:
- I2C, Serial, SPI™
- Resolution (Bits):
- 24 b
- Number of ADCs / DACs:
- 2 / 2
- Sigma Delta:
- No
- S/N Ratio, ADCs / DACs (db) Typ:
- 98 / 98
- Dynamic Range, ADCs / DACs (db) Typ:
- 96 / 98
- Voltage - Supply, Analog:
- 2.97V ~ 3.63V
- Voltage - Supply, Digital:
- 2.97V ~ 3.63V
- Operating Temperature:
- -40°C ~ 105°C
- Grade:
- Automotive
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 32-LFCSP-VQ (5x5)
ADAU1961WBCPZ-RL FAQ
1.How can I place an order for ADAU1961WBCPZ-RL through Aetrix?
Please submit a Request for Quotation (RFQ) for ADAU1961WBCPZ-RL on Aetrix. Our sales agent will provide a competitive quotation and guide you through the order confirmation once you accept the terms.
2.Are the price and stock information for ADAU1961WBCPZ-RL reliable?
The price and inventory of ADAU1961WBCPZ-RL are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for ADAU1961WBCPZ-RL is usually 5 days.
3.What payment methods are accepted for ADAU1961WBCPZ-RL?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for ADAU1961WBCPZ-RL transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for ADAU1961WBCPZ-RL?
ADAU1961WBCPZ-RL orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your ADAU1961WBCPZ-RL order is processed, you will receive an email with the shipment details and tracking number.
Note: Tracking information may take up to 24 hours to appear. Express delivery typically takes 3–5 business days.
5.How can I obtain technical support or documentation for ADAU1961WBCPZ-RL?
For technical support, including ADAU1961WBCPZ-RL datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your ADAU1961WBCPZ-RL requirements.
6.How does Aetrix verify that ADAU1961WBCPZ-RL is sourced from the original manufacturer or authorized distributors?
All ADAU1961WBCPZ-RL products on Aetrix are procured from qualified distributors and authorized channels. Our dedicated quality assurance team conducts strict verification, including traceability checks and, if necessary, third-party testing. This ensures that ADAU1961WBCPZ-RL meets industry standards.
7.What is the process for return or replacement of ADAU1961WBCPZ-RL?
All ADAU1961WBCPZ-RL units undergo pre-shipment inspection (PSI). If there is an issue with ADAU1961WBCPZ-RL, returns or replacements are accepted under the following conditions:
1.Quantity discrepancies, incorrect items, or visible external defects (such as breakage or corrosion), acknowledged by Aetrix.
2.The issue is reported within 90 days of delivery.
3.The ADAU1961WBCPZ-RL part is unused and in its original packaging.
Return procedure for ADAU1961WBCPZ-RL:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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