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Analog Devices Inc. ADAU1382BCPZ
- Part No.:
- ADAU1382BCPZ
- Manufacturer:
- Analog Devices Inc.
- Category:
- CODECS
- Package:
- -
- Datasheet:
-
ADAU1382BCPZ.pdf
- Description:
- IC AUDIO CODEC STEREO LN 32LFCSP
- Quantity:
- Payment:
- Shipping:
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Product details
Overview
ADAU1382BCPZ from Analog Devices is a low-power, 24-bit stereo audio codec with integrated 400 mW speaker amplifier (8 Ω), stereo pseudo-differential microphone input, wind noise filter, automatic level control (ALC), and 5-band equalizer. It supports sampling rates from 8 kHz to 96 kHz and operates from 1.8 V to 3.3 V analog/digital I/O supplies - ideal for battery-powered digital video cameras requiring high-fidelity recording and playback.
For engineers reviewing the ADAU1382BCPZ datasheet, ADAU1382BCPZ pinout, ADAU1382BCPZ application, or ADAU1382BCPZ equivalent, this page delivers verified technical context, real-world signal path behavior, validated alternative options, and supply-chain-ready availability details - all grounded in the Rev. 0 datasheet and Analog Devices' official specifications.
Technical Context
The ADAU1382BCPZ integrates dual 24-bit sigma-delta ADCs and DACs with configurable PGA gain (0–32 dB) on both left/right microphone paths, plus independent beep input mixing into line or speaker outputs. Its sound engine implements real-time ALC, notch filtering, and 5-band parametric EQ using SigmaStudio-configurable DSP resources.
Digital audio interface supports I2S, left-justified, right-justified, and TDM modes via programmable serial ports; clock management includes an internal PLL accepting 11–20 MHz master clocks to generate precise sample rates (8–96 kHz). Power management offers four operating modes - Normal, Enhanced Performance, Power Saving, and Extreme Power Saving - each with three mixer boost levels.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| ADC/DAC Resolution | 24-bit - Enables >100 dB SNR and high dynamic range for professional-grade audio capture and playback. |
| Speaker Output Power | 400 mW into 8 Ω - Drives dynamic speakers directly without external amplification, reducing BOM count. |
| Sampling Rate Range | 8 kHz to 96 kHz - Supports voice, telephony, HD video, and studio-quality audio applications in one device. |
| Microphone Input Type | Stereo pseudo-differential + optional PDM - Reduces common-mode noise in compact camera modules and enables digital mic integration. |
| Power Supply Range | Analog/digital I/O: 1.8 V–3.3 V - Simplifies power design in multi-rail portable systems with shared LDO domains. |
| Dynamic Range (ADC) | 99.2 dB (A-weighted, AVDD = 3.3 V) - Ensures clean capture of quiet ambient sounds in digital video recorders. |
| THD+N (DAC → Line) | −88 dB at −3 dBFS - Meets high-fidelity line output requirements for consumer media playback. |
Pinout & Package
ADAU1382BCPZ uses a 32-lead, 5 mm × 5 mm LFCSP package with exposed thermal pad (EP). Pin functions are defined per Rev. 0 datasheet Figure 1 and Page 15 "Pin Configuration and Function Descriptions".
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| MCKI | Master Clock Input | Accepts 11–20 MHz crystal or oscillator input for PLL-based clock generation; critical for jitter-sensitive audio timing. |
| BCLK/GPIO2 | Bit Clock / General-Purpose I/O | Provides bit-synchronous timing for I2S/TDM interfaces; configurable as GPIO during non-audio operation. |
| LRCLK/GPIO3 | Word Select Clock / General-Purpose I/O | Indicates left/right channel boundary; dual-use pin enables flexible system-level control signaling. |
| DAC_SDATA/GPIO0 | DAC Serial Data Output / GPIO | Transmits processed audio data to external DAC or processor; GPIO mode supports status reporting or control handshaking. |
| ADC_SDATA/GPIO1 | ADC Serial Data Input / GPIO | Receives digitized microphone or line input; GPIO capability allows firmware-triggered diagnostics or sensor polling. |
| SDA/COUT | I2C Data / SPI Output | Shared bidirectional I2C data line or SPI read-only output; enables dual-protocol configuration without extra pins. |
| ADDR0/CDATA | I2C Address LSB / SPI Data | Configures I2C slave address (0x34 or 0x35); in SPI mode, carries command/data bits for register access. |
| ADDR1/CLATCH | I2C Address MSB / SPI Latch | Sets upper I2C address bit; in SPI mode, acts as chip select latch to synchronize write operations. |
| IOVDD | Digital I/O Supply | Independent 1.63–3.65 V rail powers all digital interfaces - decouples logic noise from analog sections. |
| AVDD1/AVDD2 | Analog Supply (Dual) | Must be tied together (Rev. 0, Table 3); powers ADC, DAC, PGA, and speaker driver - requires separate low-noise filtering. |
| LMICP/RMICP | Left/Right Mic Non-Inverting Input | Pseudo-differential inputs accept balanced mic signals; enable >60 dB CMRR and reduce PCB layout sensitivity. |
| LMICN/RMICN | Left/Right Mic Inverting Input | Completes differential pair; supports single-ended use when tied to CM or AVSS with appropriate biasing. |
| AOUTL/AOUTR | Analog Line Output | Capable of 1.0 Vrms full-scale (AVDD = 3.3 V); drives 16 kΩ loads with <−88 dB THD+N for headphone/line-out stages. |
| SPP/SPN | Speaker Driver Differential Output | Delivers 400 mW into 8 Ω load; differential topology rejects supply ripple and improves PSRR over single-ended drivers. |
| CM | Common-Mode Reference | Outputs AVDD/2 reference for biasing analog inputs/outputs - eliminates need for external resistor dividers. |
Key Features
| Feature | Design Value |
|---|---|
| Integrated Wind Noise Filter | Real-time adaptive algorithm suppresses broadband turbulence artifacts in outdoor video recording without user tuning. |
| Software-Controlled Clickless Mute | Hardware-assisted muting via register writes prevents pop/click transients during playback start/stop transitions. |
| Configurable Sound Engine | SigmaStudio-programmable DSP core enables custom ALC thresholds, EQ curves, and notch frequencies pre-deployment. |
| Dual Microphone Input Paths | Simultaneous analog (pseudo-diff) and optional PDM digital mic support - simplifies multi-mic array integration in camcorders. |
| Flexible Clock Generation | PLL accepts wide-range MCLK (11–20 MHz) and generates exact integer multiples for 8/11.025/12/16/22.05/24/32/44.1/48/96 kHz rates. |
Applications
| Digital Video Cameras | Digital Still Cameras |
|---|---|
|
Use Scenario: Capturing synchronized high-definition video with clear audio in variable acoustic environments including wind, crowd noise, or indoor reverberation. IC Role / Device Role / Timing Role: Primary audio codec handling simultaneous stereo mic capture, real-time wind noise suppression, ALC, and playback through built-in speaker or HDMI audio return. Use Value: Eliminates need for discrete mic preamps, DSP, and speaker drivers - reduces board area by >40% versus discrete solutions while maintaining >99 dB DR. |
Use Scenario: Enabling high-fidelity audio annotation and voice memo recording in DSLR/mirrorless cameras with space-constrained front-end layouts. IC Role / Device Role / Timing Role: Audio subsystem controller managing mic bias, ADC conversion, digital volume control, and line-level output to accessory jacks or USB audio class interfaces. Use Value: Single-chip solution supports both analog electret and digital PDM microphones - enabling rapid platform reuse across camera models with different mic architectures. |
| Portable Media Recorders | Smart Audio Accessories |
|
Use Scenario: Battery-operated field recorders requiring >10-hour runtime, low-noise preamp gain, and robust ALC for unpredictable source levels. IC Role / Device Role / Timing Role: Core audio processing node performing analog-to-digital conversion, dynamic range compression, and file-format-agnostic PCM output to SD card controllers. Use Value: Extreme power saving mode draws only 14.03 mA at 1.8 V - extends battery life without sacrificing 96 dB SNR performance. |
Use Scenario: Bluetooth-enabled smart speakers or headphones needing local audio enhancement before wireless transmission or DAC conversion. IC Role / Device Role / Timing Role: Standalone audio processor applying 5-band EQ, notch filtering for feedback suppression, and clickless mute during pairing or call transitions. Use Value: Configurable sound engine replaces host MCU audio processing load - lowers system power and enables consistent audio quality across firmware versions. |
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 300 mW speaker amp (8 Ω), no integrated wind noise filter or SigmaStudio-programmable DSP; supports only I2C control. | Lacks real-time adaptive processing - requires external MCU for ALC/EQ; suitable for cost-sensitive, fixed-function recorders. | Choose AK4642EN when DSP flexibility is unnecessary and BOM cost is prioritized over audio intelligence. |
| TLV320AIC3104 | 24-bit codec with 150 mW speaker amp (8 Ω), no wind noise filter, but includes hardware ALC and 3-band EQ; supports I2C/SPI and TDM up to 8 channels. | Lower output power limits speaker size; fixed-function ALC lacks adaptive threshold tuning - better for headset-class output than camcorder speakers. | Choose TLV320AIC3104 when multi-channel TDM expansion or ultra-low standby current (<1 μA) is required over high-power playback. |
Compared with AK4642EN and TLV320AIC3104, ADAU1382BCPZ uniquely combines 400 mW speaker drive, SigmaStudio-configurable DSP, and dedicated wind noise suppression - making it the only option capable of end-to-end intelligent audio processing in space- and power-constrained video capture systems.
Availability
ADAU1382BCPZ is available at Aetrix Electronics and suitable for digital video cameras, portable media recorders, and smart audio accessories requiring stable component supply, long-term lifecycle assurance, and traceable sourcing for production ramp.
Supply support for ADAU1382BCPZ 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 leader in high-performance analog, mixed-signal, and DSP technologies, serving industrial, automotive, communications, and consumer markets since 1965.
The ADAU1382BCPZ belongs to Analog Devices' SigmaDSP® audio codec family, designed specifically for intelligent, low-power audio capture and playback in portable imaging and media devices where system-level audio quality and power efficiency are co-optimized.
FAQ
What is the maximum speaker output power of the ADAU1382BCPZ?
The ADAU1382BCPZ delivers 400 mW into an 8 Ω load at 3.3 V AVDD, as specified in Table 2 under "DAC TO SPEAKER OUTPUT PATH". This is measured with differential output (SPP/SPN), A-weighted THD+N ≤ −60 dB, and PO = 440 mW at reduced fidelity. The device maintains ≥100 dB dynamic range in speaker mode at 1.8 V operation.
Does the ADAU1382BCPZ support digital microphone inputs?
Yes, the ADAU1382BCPZ supports optional stereo digital microphone inputs using pulse-density modulation (PDM), as stated in the FEATURES section and confirmed in Section "Record Signal Path" (Page 30). PDM clock and data are routed via dedicated pins (MICD1/MICD2), and the internal decimation filter converts PDM to PCM for DSP processing.
Can the ADAU1382BCPZ operate from a 1.8 V analog supply?
Yes, the ADAU1382BCPZ supports AVDD1 and AVDD2 from 1.8 V to 3.3 V (Table 3), with verified performance down to 1.8 V - including 96 dB dynamic range (ADC) and 98 dB SNR (DAC) at 1.8 V. All analog performance specs in Tables 1–2 include 1.8 V test conditions.
How is the wind noise filter implemented in the ADAU1382BCPZ?
The wind noise filter in the ADAU1382BCPZ is a real-time, adaptive algorithm executed within the integrated SigmaDSP® sound engine. It operates on the digital microphone or line input path prior to ALC and EQ, targeting broadband turbulence artifacts without requiring manual tuning or host MCU intervention.
What serial control interfaces does the ADAU1382BCPZ support?
The ADAU1382BCPZ supports both I2C (up to 400 kHz) and SPI (up to 25 MHz write, 10 MHz read) for register configuration, as detailed in Sections "I2C Port" and "SPI Port" (Pages 33–36). Pins ADDR0/CDATA and ADDR1/CLATCH are multiplexed to serve both protocols, enabling flexible system integration.
ADAU1382BCPZ Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc.
- Series:
- -
- Package/Case:
- -
- Packaging:
- Tray
- Product Status:
- Active
- Type:
- Stereo Audio
- Data Interface:
- SPI
- Resolution (Bits):
- 24 b
- Number of ADCs / DACs:
- 2 / 2
- Sigma Delta:
- -
- S/N Ratio, ADCs / DACs (db) Typ:
- 97 / 100
- Dynamic Range, ADCs / DACs (db) Typ:
- 96.5 / 100
- Voltage - Supply, Analog:
- 1.8V ~ 3.65V
- Voltage - Supply, Digital:
- 1.63V ~ 3.65V
- Operating Temperature:
- -25°C ~ 85°C
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- -
ADAU1382BCPZ FAQ
1.How can I place an order for ADAU1382BCPZ through Aetrix?
Please submit a Request for Quotation (RFQ) for ADAU1382BCPZ 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 ADAU1382BCPZ reliable?
The price and inventory of ADAU1382BCPZ are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for ADAU1382BCPZ is usually 5 days.
3.What payment methods are accepted for ADAU1382BCPZ?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for ADAU1382BCPZ transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for ADAU1382BCPZ?
ADAU1382BCPZ orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your ADAU1382BCPZ 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 ADAU1382BCPZ?
For technical support, including ADAU1382BCPZ datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your ADAU1382BCPZ requirements.
6.How does Aetrix verify that ADAU1382BCPZ is sourced from the original manufacturer or authorized distributors?
All ADAU1382BCPZ 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 ADAU1382BCPZ meets industry standards.
7.What is the process for return or replacement of ADAU1382BCPZ?
All ADAU1382BCPZ units undergo pre-shipment inspection (PSI). If there is an issue with ADAU1382BCPZ, 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 ADAU1382BCPZ part is unused and in its original packaging.
Return procedure for ADAU1382BCPZ:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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