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Texas Instruments TLV320AIC33IGVX
- Part No.:
- TLV320AIC33IGVX
- Manufacturer:
- Texas Instruments
- Category:
- CODECS
- Package:
- 80-VFBGA
- Datasheet:
-
TLV320AIC33IGVX.pdf
- Description:
- LOW-POWER STEREO CODEC WITH 10 I
- Quantity:
- Payment:
- Shipping:
Inventory:3,772
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Product details
Overview
TLV320AIC33 from Texas Instruments is a low-power stereo audio codec IC with integrated 100-dBA DAC, 92-dBA ADC, programmable microphone preamplifier (0–59.5 dB gain), stereo headphone drivers (30 mW into 16 Ω), and 8-Ω speaker drivers (500 mW/channel in BTL). It operates from 2.7–3.6 V analog, 1.65–1.95 V core, and 1.1–3.6 V I/O supplies, supporting 8–96 kHz sampling rates - ideal for battery-powered smartphones and portable telephony systems.
For engineers reviewing the TLV320AIC33 datasheet, TLV320AIC33 pinout, TLV320AIC33 application, or TLV320AIC33 equivalent, key selection considerations include its dual-supply voltage tolerance, QFN-48/80-BGA package options, I²C/SPI control bus selectability, capless headphone output capability, and integrated AGC + digital audio effects (3D/bass/treble/EQ/de-emphasis).
Technical Context
The TLV320AIC33 implements delta-sigma modulation architecture for both ADC and DAC paths, with fully programmable digital interpolation and decimation filters supporting A-weighted SNR of 100 dB (DAC) and 92 dB (ADC) at 48 kHz. Its analog front-end includes ten configurable input terminals (MIC/LINE) with single-ended or differential routing and 3-state capability for floating inputs.
Audio data transport supports I²S, left/right-justified, DSP, and TDM serial formats; clocking is managed by an internal PLL accepting MCLKs from 512 kHz to 50 MHz, enabling precise generation of standard audio rates (e.g., 44.1 kHz, 48 kHz) without external crystals. Power management uses register-based modular control, achieving 14 mW stereo 48-kHz playback on 3.3-V analog supply.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| DAC SNR | 100 dBA - enables high-fidelity playback with minimal audible noise floor in portable audio systems |
| ADC SNR | 92 dBA - supports clean voice capture and line-in recording even with low-level microphone signals |
| Sampling Rate Range | 8–96 kHz - accommodates narrowband telephony (8 kHz) through high-res music (96 kHz) |
| Headphone Output Power | 30 mW per channel into 16 Ω - sufficient for capless or AC-coupled stereo headset drive |
| Speaker Output Power | 500 mW per channel into 8 Ω (BTL) - drives mono/stereo speakers directly without external amplifiers |
| PGA Gain Range | 0 to +59.5 dB in 0.5-dB steps - allows precise matching of mic sensitivity and signal chain headroom |
| Microphone Bias | Programmable 2.0–2.75 V - supports electret condenser microphones across varying supply conditions |
Pinout & Package
TLV320AIC33 is packaged in a 7 × 7 mm, 48-lead QFN (GQE package) with exposed thermal pad connected to DRVSS. Pin functions are validated per TI SLAS480B datasheet (Rev. December 2008), with all 48 pins assigned and electrically defined - no NC pins in QFN variant.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| MICBIAS (13) | Microphone bias voltage output | Programmable 2.0–2.75 V reference for electret mic biasing; load capable up to 4 mA |
| HPLOUT (18) | High-power left headphone output (+) | Capable of driving 16 Ω headphones directly; supports capless or AC-coupled configurations |
| HPLCOM (19) | High-power left headphone output (−) / common-mode reference | Configurable as inverted output or common-mode voltage node (1.35–1.8 V) for balanced drive |
| HPROUT (23) | High-power right headphone output (+) | Symmetric counterpart to HPLOUT; enables stereo BTL headphone or speaker drive |
| HPRCOM (22) | High-power right headphone output (−) / common-mode reference | Matches HPLCOM functionality; required for differential headphone/speaker operation |
| SELECT (43) | Control bus mode select | High = SPI mode; Low = I²C mode; must be set at power-up and not changed dynamically |
| RESET (33) | Hardware reset input | Active-low asynchronous reset; requires ≥10 ns pulse after supplies stabilize for reliable initialization |
| MCLK (37) | Master clock input | Accepts 512 kHz–50 MHz clock; feeds programmable PLL for generating audio sample clocks |
Key Features
| Feature | Design Value |
|---|---|
| Modular power control | Independent enable/disable of ADC, DAC, PGA, outputs, and PLL - reduces active current to sub-µA in deep sleep |
| Digital audio effects engine | On-chip 3D enhancement, bass/treble/midrange EQ, and de-emphasis filtering - eliminates need for host DSP processing |
| AGC with noise detection | Automatic gain control with adjustable threshold, attack/release, and noise flag output (GPIO1) - maintains consistent record level across varying acoustic environments |
| I²C/SPI dual-control interface | Pin-selectable protocol via SELECT pin - simplifies integration with either microcontroller ecosystem without redesign |
| Capless headphone output | Programmable common-mode voltage (1.35–1.8 V) and DC-blocking-free drive - removes bulky output coupling capacitors, saving PCB area and cost |
| Digital microphone support | GPIO2 and GPIO1 repurposed as PDM clock/data inputs - enables direct connection to digital MEMS microphones |
Applications
| Smartphone Voice Call System | Portable Media Player Audio Front-End |
|---|---|
Use Scenario: Full-duplex telephony with headset mic and earpiece speaker during cellular calls. IC Role / Device Role / Timing Role: Simultaneous ADC (mic path) and DAC (earpiece path) with AGC and de-emphasis; PLL synchronized to baseband clock. Use Value: 92-dBA ADC captures clear voice under noisy conditions; 100-dBA DAC delivers intelligible audio at low power (14 mW playback). |
Use Scenario: High-fidelity music playback with equalization and headphone drive in handheld media players. IC Role / Device Role / Timing Role: Stereo DAC with programmable 3D/bass/treble/EQ; capless 16-Ω headphone output; I²S master mode feeding from SoC. Use Value: On-chip digital effects eliminate host CPU load; 30 mW/channel into 16 Ω enables loud, low-distortion playback without external amps. |
| Bluetooth Headset Baseband Interface | Industrial Handheld Terminal Audio |
Use Scenario: Audio bridge between Bluetooth module (PCM/I²S) and analog headset/mic in wireless headsets. IC Role / Device Role / Timing Role: I²S slave interface to BT chip; flexible input muxing (MIC1/MIC2/LINE); mono line-out for speaker. Use Value: Alternate PCM/I²S bus mode simplifies BT SoC connection; programmable mic bias ensures compatibility with diverse electret mics. |
Use Scenario: Ruggedized field terminal requiring voice recording, speaker alerts, and headset communication in noisy environments. IC Role / Device Role / Timing Role: Dual-mic AGC recording with line-in monitoring; 500 mW BTL speaker drive for audible alerts; robust 48-QFN package. Use Value: 10-input flexibility supports multiple mic/sensor inputs; 8-Ω speaker drive replaces discrete amplifier stage; –40°C to +85°C rating ensures industrial reliability. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar stereo audio codec applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| TLV320AIC32IRHBT | Lower SNR (94-dBA DAC, 89-dBA ADC); no speaker drivers; 32-pin QFN | Targeted at ultra-low-cost headset-only applications without speaker or line-out needs | Select when system only requires basic headset audio and board space is extremely constrained |
| WM8960GEFL/V | Higher power consumption (22 mW playback); fixed 1.8-V core; no digital microphone support | Optimized for consumer audio with integrated jack detection but less flexible clocking (no wide-range PLL) | Choose if existing design uses Wolfson ecosystem or requires mature production support over ultra-low power |
Compared with TLV320AIC33, TLV320AIC32IRHBT sacrifices SNR and output drive capability for size/cost reduction, while WM8960GEFL/V trades power efficiency and clock flexibility for broader legacy software support and jack detection integration.
Availability
TLV320AIC33 is available at Aetrix Electronics and suitable for smartphone voice subsystems, portable media player audio front-ends, and industrial handheld terminal designs requiring stable component supply, long-term lifecycle assurance, and qualified automotive-grade alternatives.
Supply support for TLV320AIC33 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 decades of expertise in precision signal chain and low-power audio solutions.
The TLV320AIC33 belongs to TI's portable audio codec product line, designed specifically for space-constrained, battery-operated devices requiring high-fidelity audio conversion, flexible I/O, and aggressive power optimization - targeting smartphones, PDAs, and portable communication systems.
FAQ
What is the minimum analog supply voltage required for TLV320AIC33 operation?
The TLV320AIC33 requires an analog supply (AVDD and DRVDD) between 2.7 V and 3.6 V. Operation below 2.7 V is outside specification and may cause functional failure or degraded SNR. The device is characterized down to 2.7 V at full performance - verified in TI SLAS480B datasheet Section 6.3 Recommended Operating Conditions. TLV320AIC33 must not be operated at 2.6 V or lower.
Does TLV320AIC33 support capless headphone output, and how is it configured?
Yes, TLV320AIC33 supports capless (DC-coupled) headphone output using programmable common-mode voltage (1.35 V, 1.50 V, 1.65 V, or 1.80 V) on HPLCOM and HPRCOM pins. This configuration eliminates external AC-coupling capacitors. TLV320AIC33 achieves this via internal charge pumps and rail-to-rail output stages - confirmed in Electrical Characteristics Table 3, "Stereo Headphone Driver" section of SLAS480B.
Can TLV320AIC33 interface directly with digital MEMS microphones?
Yes, TLV320AIC33 supports digital microphone input via GPIO1 (as PDM clock) and GPIO2 (as PDM data), as documented in Terminal Functions table (page 3) and Overview section (page 18) of SLAS480B. This capability is exclusive to TLV320AIC33 within its family and does not require external level-shifting or clock conditioning - enabling direct connection to common PDM MEMS mics.
What is the maximum total harmonic distortion (THD) performance of TLV320AIC33 DAC at full-scale output?
At 1 kHz, 0 dBFS, and 16-Ω load, TLV320AIC33 DAC exhibits THD of –71 dB (0.028%) at 20 mW output power, per Electrical Characteristics Table 2. This value is measured under specified conditions (AVDD=DRVDD=3.3 V, DVDD=1.8 V, Fs=48 kHz) and reflects real-world headphone drive capability - not theoretical small-signal performance.
Is hardware reset mandatory for TLV320AIC33, and what timing is required?
Yes, a hardware reset is mandatory. The RESET pin must be driven low for at least 10 ns after all supplies reach regulation - as stated in the Overview section (page 18) and Figure 15 timing diagram of SLAS480B. Failure to apply this reset results in undefined register states and non-responsive I²C/SPI communication. TLV320AIC33 will not initialize correctly without this pulse.
TLV320AIC33IGVX Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Series:
- -
- Package/Case:
- 80-VFBGA
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Type:
- Stereo Audio
- Data Interface:
- DSP, I2C, I2S, PCM, SPI
- Resolution (Bits):
- 16 b, 20 b, 24 b, 32 b
- Number of ADCs / DACs:
- 2 / 2
- Sigma Delta:
- Yes
- S/N Ratio, ADCs / DACs (db) Typ:
- 92 / 100
- Dynamic Range, ADCs / DACs (db) Typ:
- 92 / 100
- 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:
- 80-NFBGA (5x5)
TLV320AIC33IGVX FAQ
1.How can I place an order for TLV320AIC33IGVX through Aetrix?
Please submit a Request for Quotation (RFQ) for TLV320AIC33IGVX 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 TLV320AIC33IGVX reliable?
The price and inventory of TLV320AIC33IGVX are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TLV320AIC33IGVX is usually 5 days.
3.What payment methods are accepted for TLV320AIC33IGVX?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TLV320AIC33IGVX transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TLV320AIC33IGVX?
TLV320AIC33IGVX orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TLV320AIC33IGVX 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 TLV320AIC33IGVX?
For technical support, including TLV320AIC33IGVX datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TLV320AIC33IGVX requirements.
6.How does Aetrix verify that TLV320AIC33IGVX is sourced from the original manufacturer or authorized distributors?
All TLV320AIC33IGVX 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 TLV320AIC33IGVX meets industry standards.
7.What is the process for return or replacement of TLV320AIC33IGVX?
All TLV320AIC33IGVX units undergo pre-shipment inspection (PSI). If there is an issue with TLV320AIC33IGVX, 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 TLV320AIC33IGVX part is unused and in its original packaging.
Return procedure for TLV320AIC33IGVX:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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