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Analog Devices Inc./Maxim Integrated MAX9867ETJ+G3U
- Part No.:
- MAX9867ETJ+G3U
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Category:
- CODECS
- Package:
- 32-WFQFN Exposed Pad
- Datasheet:
-
MAX9867ETJ+G3U.pdf
- Description:
- IC STEREO AUD CODEC LP 32TQFN
- Quantity:
- Payment:
- Shipping:
Inventory:267
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Product details
Overview
MAX9867ETJ+G3U from Analog Devices is an ultra-low power stereo audio codec IC designed for portable consumer devices. It delivers 90dB DAC SNR, 85dB ADC SNR, 10mW capacitorless headphone output into 32Ω, voiceband/audioband digital filtering, and operates from a single 1.8V supply with I²C control - enabling high-fidelity audio in mobile phones and wireless headsets.
For engineers reviewing the MAX9867ETJ+G3U datasheet, MAX9867ETJ+G3U pinout, MAX9867ETJ+G3U application, or MAX9867ETJ+G3U equivalent, key selection criteria include its 10–60MHz master clock flexibility, differential/single-ended/capacitorless headphone drive, stereo analog/digital microphone support, integrated auxiliary ADC for battery monitoring, and 32-pin TQFN-EP package with exposed thermal pad.
Technical Context
The MAX9867ETJ+G3U integrates dual sigma-delta ADCs and DACs with programmable IIR/FIR digital filters optimized for voiceband (GSM packet rejection) and audioband modes. Its proprietary digital architecture accepts any 10–60MHz system clock without external PLL, reducing BOM count and board space.
It supports simultaneous full-duplex operation with configurable signal paths: stereo line inputs can route directly to headphone amps for playback or to ADCs for recording; microphone inputs include programmable preamp gain (0/20/30dB) and bias generation; and sidetone mixing is implemented digitally with adjustable gain.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| DAC SNR | 90dB at 48kHz - enables high-resolution audio playback with low noise floor |
| ADC SNR | 85dB at 48kHz - supports clean voice capture and line-in recording |
| Headphone Output Power | 10mW per channel into 32Ω (capacitorless mode) - eliminates DC-blocking capacitors, saving PCB area and cost |
| Supply Voltage | 1.8V single analog/digital supply - simplifies power design for battery-powered systems |
| Master Clock Range | 10MHz to 60MHz - allows use of existing system clocks without dedicated crystal or PLL |
| Digital Interface | I²C control + I²S/TDM audio bus - enables host MCU integration with minimal GPIO usage |
| Operating Temp Range | -40°C to +85°C - qualified for industrial and mobile end-equipment environments |
Pinout & Package
The MAX9867ETJ+G3U is housed in a 32-pin 5mm × 5mm TQFN package with exposed thermal pad (EP), optimized for thermal performance in compact portable designs.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| AVDD, PVDD, DVDD | Analog, headphone amp, digital supplies | Separate supply domains enable independent noise isolation and power sequencing |
| LOUTP/LOUTN, ROUTP/ROUTN | Differential headphone outputs | Support Class AB differential drive; configurable for capacitorless or single-ended operation |
| MICLP/MICLN, MICRP/MICRN | Stereo differential analog microphone inputs | Accept ±1VP-P full-scale input; include programmable 0/20/30dB preamp gain |
| SDIN, SDOUT, BCLK, LRCLK | I²S/TDM digital audio interface | Support master/slave mode; compatible with standard audio processors and DSPs |
| SDA, SCL, IRQ | I²C control interface | Enable register-level configuration of volume, mixing, filter modes, and power states |
| JACKSNS/AUX | Jack sense / auxiliary ADC input | Detects headset insertion and measures battery voltage or other DC signals |
Key Features
| Feature | Design Value |
|---|---|
| Voiceband digital filters | Programmable 5th-order IIR highpass + IIR lowpass with >70dB stopband attenuation - suppresses GSM 217Hz noise and harmonics |
| Capacitorless headphone output | Delivers 10mW into 32Ω without output coupling capacitors - reduces component count and board area by ~30% |
| Integrated microphone bias | 1.525V ±25mV at 1mA - stable bias for condenser mics; includes load/line regulation specs |
| Click-and-pop suppression | A-weighted peak level ≤ -69dBV on startup/shutdown - meets EN 50332-1 audio quality requirements |
| Auxiliary ADC path | 10-bit resolution, DC-coupled - enables battery voltage monitoring or sensor interface without external ADC |
Applications
| Mobile Handset Audio Subsystem | Wireless Stereo Headset |
|---|---|
Use Scenario: Full-duplex voice call with simultaneous music playback and sidetone feedback in smartphone baseband/audio SoC integration. IC Role / Device Role / Timing Role: Audio codec providing ADC/DAC conversion, microphone preamplification, headphone amplification, and digital sidetone mixing. Use Value: 90dB DAC SNR and 85dB ADC SNR ensure clear voice uplink/downlink; capacitorless output reduces BOM cost and PCB footprint. | Use Scenario: Compact Bluetooth stereo headset requiring low-power audio processing, battery monitoring, and jack detection. IC Role / Device Role / Timing Role: Central audio interface handling mic input, DAC playback, battery voltage sensing via AUXIN, and mechanical jack presence detection. Use Value: 6.7mW playback power consumption extends battery life; integrated jack sense and auxiliary ADC eliminate discrete components. |
| Portable Navigation Device | Handheld Gaming Console |
Use Scenario: Turn-by-turn navigation with spoken instructions, ambient noise rejection, and stereo audio alerts. IC Role / Device Role / Timing Role: Voiceband-optimized codec performing noise-suppressed voice capture and low-latency audio playback. Use Value: Voiceband filters provide >70dB attenuation at fS/2 and reject GSM packet noise - critical for intelligible voice prompts in noisy automotive environments. | Use Scenario: Low-latency stereo audio rendering during gameplay with simultaneous voice chat using built-in mics. IC Role / Device Role / Timing Role: Dual-path audio processor supporting concurrent DAC playback, ADC capture, and real-time digital mixing. Use Value: Full-duplex 48kHz stereo operation consumes only 12mA total supply current - balances performance and battery runtime. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar stereo audio codec applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| AK4414VN | Higher 100dB DAC SNR but requires 3.3V AVDD; no integrated mic bias or jack sense | Better fidelity for premium audio players; lacks system integration features for mobile handsets | Choose AK4414VN when SNR >95dB is mandatory and external mic bias/jack detect circuitry is acceptable |
| TLV320AIC3106IRHBT | Lower 89dB DAC SNR; supports 1.8V operation but uses fixed 24.576MHz MCLK requirement | Proven in industrial audio; less flexible clocking than MAX9867ETJ+G3U's 10–60MHz range | Choose TLV320AIC3106IRHBT when legacy TI ecosystem compatibility or extended temperature validation is required |
Compared with AK4414VN and TLV320AIC3106IRHBT, the MAX9867ETJ+G3U uniquely combines ultra-low power (6.7mW playback), wide master clock tolerance (10–60MHz), integrated system functions (jack sense, AUX ADC, mic bias), and capacitorless headphone drive - making it optimal for space-constrained, battery-sensitive portable designs.
Availability
MAX9867ETJ+G3U is available at Aetrix Electronics and suitable for mobile handsets, wireless headsets, portable navigation devices, and handheld gaming consoles requiring stable component supply, RoHS-compliant packaging, and long-term production continuity.
Supply support for MAX9867ETJ+G3U 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 is a global leader in high-performance analog, mixed-signal, and digital signal processing semiconductors, serving industrial, automotive, communications, and consumer markets.
The MAX9867ETJ+G3U belongs to Analog Devices' ultra-low-power audio codec product line, engineered specifically for battery-operated portable devices demanding high audio quality, minimal power consumption, and high level of system integration.
FAQ
What is the maximum headphone output power of the MAX9867ETJ+G3U in capacitorless mode?
The MAX9867ETJ+G3U delivers 10mW per channel into a 32Ω load in capacitorless mode at 1kHz with THD+N < 1%. This capability eliminates the need for bulky DC-blocking capacitors, reducing solution size and cost while maintaining audio performance. The device also supports differential and single-ended headphone configurations for design flexibility.
Does the MAX9867ETJ+G3U support digital microphones?
Yes, the MAX9867ETJ+G3U supports stereo digital microphone inputs via dedicated DIGMICDATA and DIGMICCLK pins. It provides programmable clock division (PCLK/6 or PCLK/8) and meets timing requirements for standard PDM microphones. The digital mic interface operates independently from the analog mic inputs, enabling hybrid microphone architectures.
What is the operating supply voltage range for the MAX9867ETJ+G3U?
The MAX9867ETJ+G3U operates from a single 1.8V analog/digital supply (AVDD = PVDD = DVDD = 1.8V, ±0.15V), with DVDDIO supporting 1.65V to 3.6V logic levels. This allows direct interfacing with 1.8V or 3.3V host processors while maintaining ultra-low power consumption - critical for portable battery-powered applications.
How does the MAX9867ETJ+G3U handle GSM interference in voice calls?
The MAX9867ETJ+G3U mitigates GSM interference using programmable voiceband digital filters, including a 5th-order elliptical IIR highpass filter tuned for 16kHz or 8kHz GSM notch rejection and an IIR lowpass filter with >70dB stopband attenuation. These filters operate in the digital domain before DAC output or after ADC input, preserving signal integrity without analog complexity.
Is the MAX9867ETJ+G3U pin-compatible with other members of the MAX9867 family?
No - the MAX9867ETJ+G3U uses a 32-pin TQFN-EP package, while the MAX9867EWV+ variant uses a 30-bump WLP. Pin assignments differ between packages, and no pin-to-pin compatibility exists across variants. System designers must use the specific footprint and layout guidelines provided for the MAX9867ETJ+G3U in the official Analog Devices datasheet.
MAX9867ETJ+G3U Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Series:
- -
- Package/Case:
- 32-WFQFN Exposed Pad
- Packaging:
- Tube
- Product Status:
- Active
- Type:
- Stereo Audio
- Data Interface:
- I2C, Serial
- Resolution (Bits):
- 18 b
- Number of ADCs / DACs:
- 2 / 2
- Sigma Delta:
- Yes
- S/N Ratio, ADCs / DACs (db) Typ:
- -
- Dynamic Range, ADCs / DACs (db) Typ:
- 85 / 90
- Voltage - Supply, Analog:
- 1.65V ~ 1.95V
- Voltage - Supply, Digital:
- 1.65V ~ 1.95V
- Operating Temperature:
- -40°C ~ 85°C
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 32-TQFN (5x5)
MAX9867ETJ+G3U FAQ
1.How can I place an order for MAX9867ETJ+G3U through Aetrix?
Please submit a Request for Quotation (RFQ) for MAX9867ETJ+G3U 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 MAX9867ETJ+G3U reliable?
The price and inventory of MAX9867ETJ+G3U are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MAX9867ETJ+G3U is usually 5 days.
3.What payment methods are accepted for MAX9867ETJ+G3U?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MAX9867ETJ+G3U transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MAX9867ETJ+G3U?
MAX9867ETJ+G3U orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MAX9867ETJ+G3U 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 MAX9867ETJ+G3U?
For technical support, including MAX9867ETJ+G3U datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MAX9867ETJ+G3U requirements.
6.How does Aetrix verify that MAX9867ETJ+G3U is sourced from the original manufacturer or authorized distributors?
All MAX9867ETJ+G3U 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 MAX9867ETJ+G3U meets industry standards.
7.What is the process for return or replacement of MAX9867ETJ+G3U?
All MAX9867ETJ+G3U units undergo pre-shipment inspection (PSI). If there is an issue with MAX9867ETJ+G3U, 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 MAX9867ETJ+G3U part is unused and in its original packaging.
Return procedure for MAX9867ETJ+G3U:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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