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Texas Instruments TLV320AIC3111IRHBR
- Part No.:
- TLV320AIC3111IRHBR
- Manufacturer:
- Texas Instruments
- Category:
- CODECS
- Package:
- 32-VFQFN Exposed Pad
- Datasheet:
-
TLV320AIC3111IRHBR.pdf
- Description:
- IC LP AUDIO CODEC 16B I2C 40VQFN
- Quantity:
- Payment:
- Shipping:
Inventory:4,523
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Product details
Overview
TLV320AIC3111 from Texas Instruments is a low-power, highly integrated audio codec IC featuring stereo 16-bit DAC (95-dB SNR), mono 16-bit ADC (91-dB SNR), embedded programmable miniDSP, and stereo 1.29-W Class-D BTL speaker amplifier with direct battery connection. It supports 8–192 kHz sample rates, I²S/Left-Justified/DSP/TDM interfaces, and operates from 2.7–5.5 V supply rails. Used in portable audio devices requiring compact, power-efficient audio processing and amplification.
For engineers reviewing the TLV320AIC3111 datasheet, TLV320AIC3111 pinout, TLV320AIC3111 application, or TLV320AIC3111 equivalent, this page delivers verified specifications, functional block context, package-aware pin definitions, real-world use cases, and validated alternative parts - all grounded in TI's SLAS644D datasheet and official device documentation.
Technical Context
The TLV320AIC3111 integrates dual signal paths: a mono ADC path with AGC, PGA, and microphone bias (MICBIAS), and a stereo DAC path feeding both headphone/lineout drivers and a Class-D speaker amplifier. Its two independent miniDSP blocks support up to five biquads for record and six for playback, enabling user-programmable bass/treble/EQ and adaptive filtering.
Digital audio routing is configurable via I²C register control or pin-strapped modes; clocking uses an integrated PLL accepting MCLK, BCLK, or GPIO1 as input. The device implements full power-down control, de-pop/soft-start circuitry, and supports mixed-voltage operation: analog (2.7–3.6 V), digital core (1.65–1.95 V), I/O (1.1–3.6 V), and Class-D (2.7–5.5 V).
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| DAC SNR | 95 dB A-weighted - enables high-fidelity playback with low audible noise floor in portable line/headphone outputs. |
| ADC SNR | 91 dB A-weighted - supports clean voice capture and recording at low input levels without external preamp gain. |
| Class-D Output Power | 1.29 W into 8 Ω BTL at 5.5 V - drives stereo speakers directly from battery without external boost converters. |
| Sample Rate Range | 8–192 kHz - accommodates legacy voice (8/16 kHz), CD-quality (44.1 kHz), and high-res audio (96/192 kHz) applications. |
| miniDSP Capacity | 5 biquads for record + 6 biquads for playback - allows real-time EQ, dynamic range compression, and custom acoustic tuning. |
| Power Supply Flexibility | Separate AVDD (2.7–3.6 V), DVDD (1.65–1.95 V), IOVDD (1.1–3.6 V), SPLVDD/SPRVDD (2.7–5.5 V) - enables optimized rail partitioning for noise isolation and battery efficiency. |
| I²C Interface | Standard/Fast Mode (up to 400 kHz) with auto-increment - simplifies host microcontroller integration and register bulk writes. |
Pinout & Package
TLV320AIC3111 is housed in a 5-mm × 5-mm, 32-pin QFN package (RHB) with exposed thermal pad. Pin numbering follows top-view orientation per TI SLAS644D Figure 2-1.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| AVDD / AVSS | Analog power / ground | Supplies analog signal chain (ADC, DAC, PGA, MICBIAS); requires local 0.1-µF + 10-µF decoupling for low-noise performance. |
| DIN / DOUT / BCLK / WCLK | Audio serial interface | Supports I²S, left/right-justified, DSP, and TDM formats; bidirectional data flow enables flexible host-to-codec streaming. |
| SPLP / SPLM / SPRP / SPRM | Class-D speaker outputs | Differential BTL outputs per channel; direct drive of 8-Ω speakers with no external LC filter required in many layouts. |
| HPL / HPR / HPVDD / HPVSS | Headphone/lineout driver | Capable of 60 mW into 16 Ω; supports AC-coupled or DC-coupled (capless) output configurations with common-mode voltage control. |
| MIC1LP / MIC1RP / MIC1LM | Microphone inputs | Three single-ended mic/line inputs with programmable gain (0–59.5 dB) and selectable input impedance for condenser or electret mics. |
| MICBIAS | Microphone bias generator | Programmable 2.0 V / 2.25 V / 2.5 V / 2.75 V output; delivers up to 4 mA with ±7 mV regulation for stable electret mic operation. |
| SCL / SDA | I²C control bus | Two-wire interface for full register access; supports multi-device addressing and interrupt-driven configuration updates. |
| VOL/MICDET | Multi-function pin | Configurable as analog volume control (128-step) or microphone detection input - reduces external component count. |
Key Features
| Feature | Design Value |
|---|---|
| Embedded miniDSP | Two independent programmable engines (record + playback) enable real-time acoustic tuning without host CPU overhead. |
| Stereo Class-D BTL amplifier | Delivers 1.29 W into 8 Ω at 5.5 V with >87 dB SNR - eliminates need for discrete speaker drivers and reduces PCB area/cost. |
| Integrated microphone interface | Includes PGA (0–59.5 dB), AGC, and programmable MICBIAS - supports plug-and-play electret mic integration with no external components. |
| Dual-path volume control | Register- or pin-controlled DAC attenuation (0 to –63 dB) and analog headphone attenuation (0 to –78 dB) - enables hybrid software/hardware volume schemes. |
| Flexible clock architecture | On-chip PLL accepts MCLK, BCLK, or GPIO1 as reference - simplifies system clock tree design and supports multiple master/slave configurations. |
| De-pop and soft-start | Hardware-enforced ramping on power-up/down and mute transitions - prevents audible transients in headphones and speakers. |
Applications
| Smartphone Audio Subsystem | Portable Media Player |
|---|---|
Use Scenario: Integrated audio solution for mid-tier smartphones handling voice calls, music playback, and speakerphone mode. IC Role / Device Role / Timing Role: Central audio codec managing mic input, earpiece/headset output, and loudspeaker playback via Class-D amplifier. Use Value: Single-chip integration reduces BOM count by eliminating separate ADC, DAC, headphone amp, and speaker driver ICs. |
Use Scenario: High-fidelity audio playback in battery-powered media players with stereo speakers and headphone jack. IC Role / Device Role / Timing Role: Stereo DAC + Class-D speaker driver + headphone amplifier - handles all analog audio I/O paths. Use Value: 1.29-W Class-D output enables loud, clear speaker playback without external boost; 95-dB DAC SNR preserves audio detail. |
| Voice-Controlled IoT Hub | Adaptive Hearing Aid Reference Design |
Use Scenario: Always-on voice assistant hub capturing far-field speech and playing localized feedback tones. IC Role / Device Role / Timing Role: Mono ADC with AGC and programmable miniDSP for noise suppression; beep generator for UI alerts. Use Value: On-chip AGC maintains consistent input level across varying distances; miniDSP enables real-time beamforming or echo cancellation. |
Use Scenario: Low-power hearing aid evaluation platform requiring customizable frequency response and dynamic compression. IC Role / Device Role / Timing Role: Programmable miniDSP with 5 biquads for record path - implements patient-specific EQ and wide-dynamic-range compression (WDRC). Use Value: User-defined biquad coefficients allow clinical tuning without hardware changes; low 1.65-V digital core voltage extends battery life. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar audio codec applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| TLV320AIC3101IRHBR | Lacks Class-D speaker amplifier; retains same DAC/ADC specs, miniDSP, and pinout - only differs in internal routing. | Requires external speaker driver for speaker output; suitable when Class-D integration is unnecessary or board space permits discrete solution. | Select TLV320AIC3101IRHBR if speaker amplification is handled externally and lower cost or reduced thermal load is prioritized. |
| TLV320AIC3254IRHBT | Higher-performance variant: 100-dB DAC SNR, 94-dB ADC SNR, 24-bit resolution, and enhanced miniDSP (12 biquads playback/10 record). | Targets premium audio applications (e.g., wireless earbuds, prosumer recorders); larger 40-pin QFN package and higher DVDD (1.8 V only). | Choose TLV320AIC3254IRHBT when SNR >98 dB and advanced DSP capability are required - not drop-in compatible due to pin count and register map differences. |
Compared with TLV320AIC3101IRHBR, the TLV320AIC3111 adds integrated Class-D amplification - reducing external component count and PCB area. Versus TLV320AIC3254IRHBT, it trades higher SNR and DSP depth for lower cost, smaller footprint, and broader supply voltage flexibility - making it optimal for cost-sensitive portable audio with moderate fidelity requirements.
Availability
TLV320AIC3111 is available at Aetrix Electronics and suitable for portable audio devices, mobile internet terminals, and adaptive filtering systems requiring stable component supply, long-term lifecycle support, and traceable sourcing.
Supply support for TLV320AIC3111 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
Texas Instruments is a global semiconductor leader specializing in analog, embedded processing, and connectivity technologies with over 50 years of innovation in precision signal chains.
The TLV320AIC3111 belongs to TI's PurePath™ audio codec family, designed specifically for ultra-low-power, high-SNR portable audio applications where integration, battery efficiency, and acoustic flexibility are critical.
FAQ
What is the maximum output power of the TLV320AIC3111 Class-D amplifier?
The TLV320AIC3111 delivers up to 1.29 W into an 8-Ω BTL load at 5.5 V SPLVDD/SPRVDD, with THD+N ≤10%. At 4.3 V, output drops to 790 mW; at 3.6 V, it is 540 mW. This scalable power enables direct battery connection without boost converters - a key advantage in space-constrained portable designs using the TLV320AIC3111.
Does the TLV320AIC3111 support I²S and other audio interface formats?
Yes, the TLV320AIC3111 supports I²S, left-justified, right-justified, DSP, and TDM audio serial formats in both master and slave modes. Its flexible audio interface allows seamless integration with application processors, DSPs, or microcontrollers - a core capability confirmed in TI's SLAS644D datasheet Section 1.1 and Figure 1-1 for the TLV320AIC3111.
Can the TLV320AIC3111 operate from a single Li-ion battery without LDOs?
Yes - the TLV320AIC3111 supports independent supply rails: AVDD (2.7–3.6 V), DVDD (1.65–1.95 V), IOVDD (1.1–3.6 V), and SPLVDD/SPRVDD (2.7–5.5 V). This allows direct connection of a 3.0–3.6 V Li-ion cell to AVDD/HPVDD/IOVDD, and the same cell (or boosted rail) to SPLVDD/SPRVDD - eliminating need for multiple LDOs in the TLV320AIC3111 system design.
How many biquad filters does the TLV320AIC3111 miniDSP support?
The TLV320AIC3111 features two independent miniDSP blocks: one dedicated to the record (ADC) path supporting up to five biquad sections, and another for the playback (DAC) path supporting up to six biquad sections. These are fully programmable via I²C and used for EQ, bass boost, treble, and adaptive filtering - as specified in TI's SLAS644D datasheet Section 1.1 for the TLV320AIC3111.
What microphone bias voltages does the TLV320AIC3111 provide?
The TLV320AIC3111 provides programmable MICBIAS output voltages of 2.0 V, 2.25 V, 2.5 V, or 2.75 V - selected via register bits in page 1 / register 46. It delivers up to 4 mA with ±5 mV regulation, enabling reliable biasing of electret condenser microphones without external components - a verified feature in the TLV320AIC3111 electrical characteristics table (Section 3.4).
TLV320AIC3111IRHBR Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Series:
- -
- Package/Case:
- 32-VFQFN Exposed Pad
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Type:
- Audio
- Data Interface:
- I2C, Serial
- Resolution (Bits):
- 32 b
- Number of ADCs / DACs:
- 1 / 2
- Sigma Delta:
- Yes
- S/N Ratio, ADCs / DACs (db) Typ:
- 91 / 95
- Dynamic Range, ADCs / DACs (db) Typ:
- -
- Voltage - Supply, Analog:
- 2.7V ~ 3.6V
- Voltage - Supply, Digital:
- 1.65V ~ 1.95V
- Operating Temperature:
- -40°C ~ 85°C
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 32-VQFN (5x5)
TLV320AIC3111IRHBR FAQ
1.How can I place an order for TLV320AIC3111IRHBR through Aetrix?
Please submit a Request for Quotation (RFQ) for TLV320AIC3111IRHBR 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 TLV320AIC3111IRHBR reliable?
The price and inventory of TLV320AIC3111IRHBR are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TLV320AIC3111IRHBR is usually 5 days.
3.What payment methods are accepted for TLV320AIC3111IRHBR?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TLV320AIC3111IRHBR transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TLV320AIC3111IRHBR?
TLV320AIC3111IRHBR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TLV320AIC3111IRHBR 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 TLV320AIC3111IRHBR?
For technical support, including TLV320AIC3111IRHBR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TLV320AIC3111IRHBR requirements.
6.How does Aetrix verify that TLV320AIC3111IRHBR is sourced from the original manufacturer or authorized distributors?
All TLV320AIC3111IRHBR 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 TLV320AIC3111IRHBR meets industry standards.
7.What is the process for return or replacement of TLV320AIC3111IRHBR?
All TLV320AIC3111IRHBR units undergo pre-shipment inspection (PSI). If there is an issue with TLV320AIC3111IRHBR, 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 TLV320AIC3111IRHBR part is unused and in its original packaging.
Return procedure for TLV320AIC3111IRHBR:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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