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STMicroelectronics TDA7462D013TR
- Part No.:
- TDA7462D013TR
- Manufacturer:
- STMicroelectronics
- Category:
- Audio Special Purpose
- Package:
- 28-SOIC (0.295", 7.50mm Width)
- Datasheet:
-
TDA7462D013TR.pdf
- Description:
- IC AUDIO SIGNAL PROCESSOR 28SO
- Quantity:
- Payment:
- Shipping:
Inventory:3,983
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Product details
Overview
TDA7462D013TR from STMicroelectronics is a fully integrated audio processor IC with five stereo + one mono analog input channels, four independent speaker outputs (front/rear left/right), dynamic compression for CD sources, differential subwoofer output, voice-band filter, softmute/softstep volume control, and I²C programmability. It delivers 0.005% THD+N at 1VRMS, 106dB SNR, and supports automotive and consumer audio systems requiring multi-source mixing and loudness compensation.
For engineers reviewing the TDA7462D013TR datasheet, TDA7462D013TR pinout, TDA7462D013TR application, or TDA7462D013TR equivalent, key selection criteria include its 28-pin SO package, ±14dB bass/treble programmability, 80dB volume range with 0.5dB steps, 40–70dB CMRR on differential inputs, and I²C-configurable compander with 2:1 compression ratio.
Technical Context
The TDA7462D013TR implements a BICMOS-based analog signal path with AutoZero offset cancellation before the mixing stage, eliminating DC drift without external AC coupling. Its input multiplexer supports three single-ended stereo inputs (SE1L/R, SE2L/R, SE3L/R), one pseudo-differential stereo input (PDL/PDR), one fully differential CD stereo input (CDL+/−, CDR+/−), and one differential mono input (MD+/−).
Signal processing includes second-order programmable bass/treble filters (4 center frequencies each), voice-bandpass (dual 2nd-order Butterworth HPF/LPF), loudness compensation (400/800Hz center, selectable Q), and a dedicated compander stage optimized for CD dynamic range compression with attack times from 6ms to 49ms and release up to 1.56s.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Supply Voltage | 7.5–10.2 V - Operates from standard 9V automotive rail with 60dB ripple rejection at 1kHz |
| THD+N | 0.005–0.1% - Ensures high-fidelity audio reproduction with minimal harmonic distortion |
| SNR | 106 dB (flat), 100 dB (A-weighted, bass/treble +12dB) - Enables low-noise output for sensitive speaker drivers |
| Volume Control Range | −83 to +34 dB in 0.5dB steps - Supports precise gain matching across multi-channel speaker systems |
| Input CMRR | 40–70 dB @ 1kHz - Maintains channel separation despite varying source impedances (e.g., CD players) |
| Output Noise | 3–15 µV (20Hz–20kHz, muted) - Minimizes audible hiss in quiet listening environments |
| Bass/Treble Range | ±14 dB / ±15 dB - Provides sufficient headroom for tonal shaping without clipping |
| I²C Interface Speed | Up to 500 kbit/s - Enables real-time parameter updates during playback without bus contention |
Pinout & Package
Package: SO-28 (Small Outline, 300 mil width), RoHS-compliant, surface-mount.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1–4, 5–8, 9, 11–13, 27–28 | Analog Inputs (SE1L/R, MD+/−, CDL+/−, CDR+/−, PDL/PDR, SE2L/R, SE3L/R) | Accepts single-ended, pseudo-differential, and true differential audio sources with 70–130kΩ input resistance |
| 14 | Stabilizer Capacitor (CREF) | Connects external capacitor to stabilize internal reference voltage for consistent biasing |
| 15 | Ground (GND) | Primary analog ground reference for all input/output stages and internal regulators |
| 16 | Supply Voltage (VS) | 9V nominal supply input; powers entire analog signal chain and I²C interface logic |
| 17–18 | Subwoofer Output (SUBOUT−/+) | Differential mono output with 6dB gain, 2nd-order LPF, and software-invertible phase |
| 19–22 | Speaker Outputs (OUTRR, OUTLR, OUTRF, OUTLF) | Four independent buffered outputs supporting 1kΩ/2kΩ loads with 30–100Ω output impedance |
| 23 | Pause Detector Output (PAUSE) | Open-drain digital flag indicating zero-crossing detection for pause/resume synchronization |
| 24–25 | I²C Bus (SCL, SDA) | Standard two-wire serial interface for full configuration of filters, gains, mute, and compander |
| 26 | Softmute Drive (MUTE) | Active-low digital input enabling hardware-triggered 80–100dB attenuation with S-curve ramp |
Key Features
| Feature | Design Value |
|---|---|
| AutoZero Offset Cancellation | Reduces input-stage DC offset to ≤0.5mV without external coupling capacitors, preventing audible pops during source switching |
| Programmable SoftStep Volume | Four selectable blend times (0.16–20.4ms) eliminate clicks during volume transitions by smoothing envelope changes |
| Dual-Mode Compander | Configurable 2:1 compression with attack (6–49ms) and release (195ms–1.56s) timing for CD-level dynamic range optimization |
| Independent Rear Channel Selector | Enables separate front/rear source routing and level control-critical for 5.1 surround pre-processing |
| Voice-Band Filter | Adjustable 2nd-order HPF (81–286Hz) and LPF (2.7–6.6kHz) for speech enhancement in hands-free or intercom applications |
| Beep Generator | Integrated dual-tone (780Hz/1.56kHz) audio feedback generator with 250–500mVRMS output for UI alerts |
Applications
| Automotive Head Unit | Home Theater Preamp |
|---|---|
Use Scenario: Multi-source infotainment system integrating CD, Bluetooth, USB, and rear-seat media inputs. IC Role / Device Role / Timing Role: Central audio processor handling input selection, loudness compensation, bass/treble tuning, and speaker-level attenuation before external power amplifiers. Use Value: Eliminates need for discrete op-amps and passive filters; enables software-defined audio profiles via I²C without hardware redesign. |
Use Scenario: 5.1-channel AV receiver preprocessing stage with independent front/rear channel management. IC Role / Device Role / Timing Role: Front-end signal conditioner providing source mixing, dynamic compression for CD/DVD, subwoofer summing, and voice-band filtering for dialogue clarity. Use Value: Delivers matched channel gain, <10µV noise floor, and 80dB volume resolution-enabling precise calibration across six output channels. |
| Car Audio DSP Module | Professional Monitor Controller |
Use Scenario: Aftermarket DSP upgrade for OEM head units lacking tone control or subwoofer integration. IC Role / Device Role / Timing Role: Standalone audio engine accepting analog line-level inputs and generating balanced front/rear/sub outputs with configurable EQ and companding. Use Value: Provides factory-grade audio processing (e.g., AutoZero, softmute) in compact SO-28 footprint-no FPGA or microcontroller required. |
Use Scenario: Studio monitor controller managing multiple input sources (DAW, mic pre, streaming) with loudness-matched volume tracking. IC Role / Device Role / Timing Role: Precision analog volume attenuator with ±1dB total tracking error and A-weighted 100dB SNR for critical listening environments. Use Value: Enables repeatable, click-free level adjustments and consistent frequency response across all inputs-meeting broadcast monitoring standards. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar audio processor applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| TDA7461D013TR | Lacks subwoofer output, compander, and voice-band filter; 20-pin SO package; no differential CD input | Suitable only for basic 4-channel stereo systems without bass management or CD optimization | Select when cost-sensitive designs omit subwoofer support and dynamic compression |
| CS42888-CQZ | Audio codec with ADC/DAC, 24-bit/192kHz, SPI/I²C, but no analog input multiplexer or integrated filters | Requires external op-amps and passive filters for tone control; targets digital-centric architectures | Select when system already uses digital audio transport and needs conversion-not analog signal conditioning |
Compared with TDA7462D013TR, the TDA7461D013TR reduces feature set and pin count for cost-driven entry-level audio, while the CS42888-CQZ shifts architecture to mixed-signal domain-requiring additional analog front-end design effort but enabling higher-resolution digital processing.
Availability
TDA7462D013TR is available at Aetrix Electronics and suitable for automotive infotainment, home theater preamplification, aftermarket DSP modules, and professional monitor controllers requiring stable component supply and long-lifecycle support.
Supply support for TDA7462D013TR 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
STMicroelectronics is a global semiconductor leader specializing in analog, power, and microcontroller solutions for automotive, industrial, and consumer markets.
The TDA7462D013TR belongs to ST's legacy automotive audio processor family, designed specifically for analog-domain signal conditioning in multi-source, multi-zone car radios and premium audio systems.
FAQ
What is the maximum recommended supply voltage for continuous operation?
The TDA7462D013TR has an absolute maximum supply voltage of 10.5V, but continuous operation must remain within 7.5–10.2V per datasheet specifications. Operating above 10.2V risks permanent damage to the BICMOS analog core, while voltages below 7.5V cause functional degradation in gain accuracy and noise performance. Thermal derating applies above 70°C ambient.
How does the AutoZero function interact with I²C programming?
AutoZero activates automatically when I²C subaddress 0x00 is written, completing in ≤0.3ms while muting the output path to prevent clicks. If the AutoZero Remain bit (bit 1 of subaddress 0x01) is set, writing 0x00 skips recalibration and retains prior offset correction-essential during firmware refresh cycles where source selection hasn't changed and unintended mute must be avoided.
Can the subwoofer output be used in single-ended mode?
No-the SUBOUT+ and SUBOUT− pins form a true differential pair with internal 6dB gain and fixed 2nd-order low-pass filtering; they must drive a differential-input amplifier or transformer. Attempting single-ended use (e.g., grounding SUBOUT−) unbalances the output stage, degrading CMRR, increasing distortion, and violating the specified 2kΩ differential load requirement per datasheet Section 5.
What causes audible artifacts during rapid volume changes, and how is it mitigated?
Clicks arise from DC offset transients and abrupt envelope discontinuities at the volume stage input. The TDA7462D013TR mitigates this via AutoZero (removing baseline offset) and SoftStep (applying S-curve interpolation between 0.16–20.4ms). Disabling SoftStep for >1dB steps introduces measurable error and audible stepping-so firmware must enforce 1dB max step size when SoftStep is off.
TDA7462D013TR Specifications
- Product attributes
- Attribute value
- Manufacturer:
- STMicroelectronics
- Series:
- -
- Package/Case:
- 28-SOIC (0.295", 7.50mm Width)
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Obsolete
- Function:
- Audio Signal Processor, Compander
- Applications:
- Consumer Audio
- Number of Channels:
- 2
- Interface:
- I2C
- Voltage - Supply:
- 7.5V ~ 10.2V
- Operating Temperature:
- -40°C ~ 85°C (TA)
- Specifications:
- -
- Mounting Type:
- Surface Mount
- Grade:
- -
TDA7462D013TR FAQ
1.How can I place an order for TDA7462D013TR through Aetrix?
Please submit a Request for Quotation (RFQ) for TDA7462D013TR 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 TDA7462D013TR reliable?
The price and inventory of TDA7462D013TR are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TDA7462D013TR is usually 5 days.
3.What payment methods are accepted for TDA7462D013TR?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TDA7462D013TR transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TDA7462D013TR?
TDA7462D013TR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TDA7462D013TR 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 TDA7462D013TR?
For technical support, including TDA7462D013TR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TDA7462D013TR requirements.
6.How does Aetrix verify that TDA7462D013TR is sourced from the original manufacturer or authorized distributors?
All TDA7462D013TR 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 TDA7462D013TR meets industry standards.
7.What is the process for return or replacement of TDA7462D013TR?
All TDA7462D013TR units undergo pre-shipment inspection (PSI). If there is an issue with TDA7462D013TR, 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 TDA7462D013TR part is unused and in its original packaging.
Return procedure for TDA7462D013TR:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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