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Texas Instruments TLV320AIC3256IYZFT
- Part No.:
- TLV320AIC3256IYZFT
- Manufacturer:
- Texas Instruments
- Category:
- CODECS
- Package:
- 42-UFBGA, DSBGA
- Datasheet:
-
TLV320AIC3256IYZFT.pdf
- Description:
- IC STEREO AUD CODEC LP 42DSBGA
- Quantity:
- Payment:
- Shipping:
Inventory:4,304
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Product details
Overview
TLV320AIC3256IYZFT from Texas Instruments is an ultra-low-power stereo audio codec with embedded miniDSP, ground-centered headphone outputs, 93dB SNR ADC and 100dB SNR DAC, supporting 48ksps operation at 5.2mW (ADC) and 5.0mW (DAC), used in mobile handsets and portable media players.
For engineers reviewing the TLV320AIC3256IYZFT datasheet, TLV320AIC3256IYZFT pinout, TLV320AIC3256IYZFT application, or TLV320AIC3256IYZFT equivalent, key selection factors include programmable microphone bias, PowerTune™ dynamic power scaling, I²C/SPI dual-control interface, and configurable analog input mux for multi-mic or line-in topologies.
Technical Context
The TLV320AIC3256IYZFT integrates dual stereo sigma-delta ADCs and DACs with independent digital signal processing paths-each featuring DRC, AGC, and volume control-plus a fully programmable 96-step miniDSP engine. Its analog front-end supports six single-ended or three fully differential inputs with low-noise PGA and selectable CM voltage (0.75V/0.9V).
Digital interface flexibility includes primary/secondary I²S, LJF, RJF, and PDM modes, with master/slave clocking via MCLK, BCLK, WCLK, and programmable PLL supporting 0.512–20MHz input. Pin multiplexing enables shared use of SCLK/MISO/SDA/GPIO for SPI/I²C/audio/data functions under SPI_SELECT control.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| ADC SNR | 93 dB A-weighted - enables high-fidelity voice capture with minimal noise floor in noisy environments |
| DAC SNR | 100 dB A-weighted - supports 16+ bit audio playback fidelity with >96dB dynamic range |
| Power Consumption | 5.2 mW ADC / 5.0 mW DAC at 48ksps - allows battery life extension in portable devices |
| PGA Gain Range | –6 to +47.5 dB in 0.5 dB steps - accommodates wide dynamic range of mic types without external amplification |
| Microphone Bias | Programmable 1.23–3.3 V output - supports electret, MEMS, and digital microphones with flexible voltage matching |
| Digital Interface | SPI or I²C control + primary/secondary I²S/LJF/RJF/PDM - enables integration with diverse host processors and digital mics |
| Headphone Output | Ground-centered stereo, 16Ω load, 0.5 VRMS full-scale - eliminates DC-blocking capacitors and saves PCB space |
Pinout & Package
TLV320AIC3256IYZFT uses a 42-ball DSBGA (YZF) package measuring 3.49 mm × 3.29 mm with 0.4 mm pitch. The package features a bottom-side thermal pad connected to DVss for enhanced thermal dissipation in space-constrained portable designs.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| IN1_L / IN1_R | Multifunction analog input (AI) | Configurable as MIC1 or Line1 left/right; supports single-ended or differential input with 0.75V/0.9V common-mode |
| HPL / HPR | Analog output (AO) | Ground-centered headphone drivers - no DC-blocking caps required; supports 14.4–16Ω SE or 24.4–32Ω diff loads |
| DRVdd_HP | Power supply (PWR) | Dedicated 1.5–1.95V supply for headphone amplifier - isolates sensitive analog output stage from digital noise |
| SPI_SELECT | Digital input (DI) | Selects I²C (low) or SPI (high) mode - determines function mapping of SCL/SS, SDA/MOSI, MISO pins |
| MICBIAS | Analog output (AO) | Programmable bias voltage source - configurable per mode (0–3) to match electret or MEMS mic requirements |
| GND_SENSE | Analog input (AI) | External ground reference for headphone amp - enables accurate ground-centered output with ±0.5V tolerance |
Key Features
| Feature | Design Value |
|---|---|
| PowerTune™ dynamic scaling | Adjusts internal clock rates, supply voltages, and processing blocks in real time to minimize active power per use case |
| Embedded 96-step miniDSP | Enables custom FIR/IIR filtering, acoustic echo cancellation, and speaker compensation without external DSP |
| Programmable PLL | Accepts 0.512–20 MHz input and generates precise audio clocks - eliminates need for multiple crystal oscillators |
| Low-noise PGA | Input-referred noise ≤2.8 μVRMS idle channel - preserves SNR when amplifying weak mic signals |
| Analog bypass mode | Direct path from INx to HPL/HPR or LOL/LOR - reduces latency and power for voice call scenarios |
Applications
| Mobile Handset Voice Call | Portable Media Player Playback |
|---|---|
Use Scenario: Full-duplex telephony with simultaneous recording and playback under tight power budget. IC Role / Device Role: Audio codec handling analog mic preamp, ADC/DAC conversion, headset drive, and digital interface to baseband processor. Use Value: Analog bypass mode cuts latency to <100 µs; PowerTune™ drops system power by 35% during call standby. |
Use Scenario: High-fidelity stereo music playback from flash storage to wired headphones. IC Role / Device Role: DAC-centric operation with ground-centered HP outputs, miniDSP-based EQ, and low-THD+N analog stages. Use Value: 100dB SNR and –121dB mute attenuation ensure clean, silent transitions between tracks. |
| Smart Speaker Far-Field Mic Array | Industrial Portable Recorder |
Use Scenario: Multi-microphone beamforming with synchronized sampling across 3 differential pairs. IC Role / Device Role: Configured with IN1/IN2/IN3 as three fully differential mic inputs, all sampled at 48ksps with matched gain/phase. Use Value: Input channel separation >108dB and crosstalk <–108dB preserve spatial integrity for algorithmic processing. |
Use Scenario: Rugged field recorder capturing speech and ambient sound in variable temperature/humidity. IC Role / Device Role: ADC-focused operation with programmable mic bias, wide-temp support (–40°C to 85°C), and robust ESD protection. Use Value: 93dB SNR ADC and 5.2mW power enable >20-hour battery life while maintaining broadcast-grade clarity. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar stereo audio codec applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| TLV320AIC3254IRSBT | Lacks ground-centered headphone outputs; requires external DC-blocking capacitors | Not suitable for capacitor-less headphone designs; higher BOM cost and board area | Choose only if legacy design uses AC-coupled HP outputs and miniDSP functionality is retained |
| TLV320AIC3206IRSBT | No embedded miniDSP; fixed-function signal processing only | Cannot implement custom filters, AEC, or speaker compensation - relies on host processor | Select when system already includes dedicated DSP or when lowest possible BOM cost is prioritized over feature flexibility |
Compared with TLV320AIC3254IRSBT and TLV320AIC3206IRSBT, the TLV320AIC3256IYZFT uniquely delivers ground-centered HP drive *and* programmable miniDSP in a single 42-ball DSBGA, reducing component count and enabling advanced audio features without host CPU overhead.
Availability
TLV320AIC3256IYZFT is available at Aetrix Electronics and suitable for mobile handsets, portable media players, and smart speaker systems requiring stable component supply, long-term lifecycle support, and consistent parametric performance across production batches.
Supply support for TLV320AIC3256IYZFT 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 company specializing in analog and embedded processing technologies, with leadership in precision analog, power management, and signal chain solutions for industrial, automotive, and consumer markets.
The TLV320AIC3256IYZFT belongs to TI's ultra-low-power audio codec product line, designed specifically for battery-powered portable devices demanding high-fidelity audio, minimal active power, and flexible software-configurable signal processing.
FAQ
What is the maximum supported sample rate for TLV320AIC3256IYZFT?
The TLV320AIC3256IYZFT supports up to 96ksps stereo audio sampling. At 48ksps, it achieves optimal power efficiency (5.0mW DAC / 5.2mW ADC) and full specification compliance including 93dB ADC SNR and 100dB DAC SNR. Higher rates require PLL reconfiguration and may impact PowerTune™ optimization.
Does TLV320AIC3256IYZFT support digital microphones?
Yes, TLV320AIC3256IYZFT supports PDM digital microphones via dedicated DOUT/MFP2 and DIN/MFP1 pins with configurable PDM timing. It accepts up to two PDM streams synchronized to BCLK/WCLK, enabling direct connection without external decimation filters or FPGA logic.
How does the ground-centered headphone output work in TLV320AIC3256IYZFT?
The TLV320AIC3256IYZFT uses an internal charge pump (VNEG, FLY_P, FLY_N) and DRVdd_HP supply to generate a true ground-referenced output on HPL/HPR. GND_SENSE pin provides external ground reference feedback, enabling DC-free analog output without coupling capacitors - saving 2× 220µF components per channel.
Can TLV320AIC3256IYZFT operate with a 1.5V AVdd supply?
Yes, TLV320AIC3256IYZFT operates with AVdd from 1.5V to 1.95V. At 1.5V, CM voltage defaults to 0.75V, reducing full-scale input/output levels (e.g., 0.375 VRMS DAC output), but maintains full functionality including miniDSP, AGC, and PowerTune™ - verified across –40°C to 85°C.
Is the miniDSP in TLV320AIC3256IYZFT user-programmable?
Yes, the TLV320AIC3256IYZFT includes a fully user-programmable 96-step miniDSP engine. TI provides PurePath Studio GUI and C-code libraries to configure FIR/IIR filters, dynamics processing, mixing, and routing - all loaded via I²C/SPI without requiring external memory or boot ROM.
TLV320AIC3256IYZFT Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Series:
- PowerTune™
- Package/Case:
- 42-UFBGA, DSBGA
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Type:
- Stereo Audio
- Data Interface:
- I2C, Serial, SPI™
- Resolution (Bits):
- 32 b
- Number of ADCs / DACs:
- 2 / 2
- Sigma Delta:
- Yes
- S/N Ratio, ADCs / DACs (db) Typ:
- 93 / 100
- Dynamic Range, ADCs / DACs (db) Typ:
- 93 / 100
- Voltage - Supply, Analog:
- 1.5V ~ 1.95V
- Voltage - Supply, Digital:
- 1.26V ~ 1.95V
- Operating Temperature:
- -40°C ~ 85°C
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 42-DSBGA (3.75x3.25)
TLV320AIC3256IYZFT FAQ
1.How can I place an order for TLV320AIC3256IYZFT through Aetrix?
Please submit a Request for Quotation (RFQ) for TLV320AIC3256IYZFT 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 TLV320AIC3256IYZFT reliable?
The price and inventory of TLV320AIC3256IYZFT are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TLV320AIC3256IYZFT is usually 5 days.
3.What payment methods are accepted for TLV320AIC3256IYZFT?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TLV320AIC3256IYZFT transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TLV320AIC3256IYZFT?
TLV320AIC3256IYZFT orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TLV320AIC3256IYZFT 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 TLV320AIC3256IYZFT?
For technical support, including TLV320AIC3256IYZFT datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TLV320AIC3256IYZFT requirements.
6.How does Aetrix verify that TLV320AIC3256IYZFT is sourced from the original manufacturer or authorized distributors?
All TLV320AIC3256IYZFT 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 TLV320AIC3256IYZFT meets industry standards.
7.What is the process for return or replacement of TLV320AIC3256IYZFT?
All TLV320AIC3256IYZFT units undergo pre-shipment inspection (PSI). If there is an issue with TLV320AIC3256IYZFT, 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 TLV320AIC3256IYZFT part is unused and in its original packaging.
Return procedure for TLV320AIC3256IYZFT:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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