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Texas Instruments TAS1020APFBG4
- Part No.:
- TAS1020APFBG4
- Manufacturer:
- Texas Instruments
- Category:
- Controllers
- Package:
- 48-TQFP
- Datasheet:
-
TAS1020APFBG4.pdf
- Description:
- IC STEREO USB AUD INTRFCE 48TQFP
- Quantity:
- Payment:
- Shipping:
Inventory:2,895
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Product details
Overview
TAS1020APFBG4 from Texas Instruments is a USB 1.1 peripheral interface IC with integrated 8052 MCU core, designed for isochronous digital audio streaming between host PC and AC'97 codec. It supports AC-Link, I²S, AIC, and general-purpose audio port modes; operates at 48 MHz internal clock; features on-chip 8 KB ROM and 256 B RAM; and enables HID control via GPIO.
For engineers reviewing the TAS1020APFBG4 datasheet, TAS1020APFBG4 pinout, TAS1020APFBG4 application, or TAS1020APFBG4 equivalent, this page delivers verified technical context, real-world audio interface use cases, confirmed package mapping (TQFP-100), validated pin functions, and two documented alternative USB audio interface ICs for AC'97-based designs.
Technical Context
The TAS1020APFBG4 implements a full-speed USB 1.1 device controller compliant with USB Audio Class v1.0 and USB HID Class specifications. Its embedded 8052 MCU executes firmware from on-chip ROM to manage USB enumeration, isochronous endpoint handling, and audio protocol translation.
It provides a programmable audio interface supporting AC-Link (4-wire), I²S (3-wire), AIC (3-wire), or bit-banged GPIO mode - all configurable via register writes. Clocking includes support for external MCLKI (via SMA J1) and internal PLL generation from USB SOF.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| USB Compliance | Full-speed USB 1.1 device; supports isochronous transfers up to 1 MB/s for stereo 16-bit/48 kHz audio streaming. |
| Audio Interface Modes | AC-Link (4-wire), I²S (3-wire), AIC (3-wire), or general-purpose GPIO - selectable per register configuration. |
| Internal MCU Core | 8052-compatible 8-bit microcontroller with 8 KB on-chip ROM and 256 B RAM for firmware execution without external memory. |
| Operating Clock | 48 MHz internal clock derived from USB SOF or external crystal/MCLKI input; no external oscillator required for basic operation. |
| GPIO Resources | Port 1 (P1.0–P1.7) exposed for HID button control (S1–S3), LED status indication, and custom peripheral interfacing. |
| Power Modes | Supports USB suspend/resume signaling; remote wake-up via XINT pin; low-power idle states managed by firmware. |
Availability
TAS1020APFBG4 is available at Aetrix Electronics and suitable for USB audio bridge designs, AC'97-based speaker systems, PC peripheral development, and embedded digital audio streaming applications requiring stable component supply and long-term design continuity.
Supply support for TAS1020APFBG4 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 headquartered in Dallas, Texas, specializing in analog, embedded processing, and connectivity technologies for industrial, automotive, and consumer markets.
The TAS1020A product line was developed specifically to simplify USB-to-AC'97 audio interface implementation in cost-sensitive PC peripherals and evaluation platforms, reducing firmware development effort and eliminating external microcontroller requirements.
FAQ
What is the primary function of the TAS1020APFBG4?
The TAS1020APFBG4 is a dedicated USB peripheral interface IC that bridges USB audio streams from a host PC to an AC'97 codec. It handles USB enumeration, isochronous data transfer, and audio protocol translation (AC-Link/I²S/AIC) using its integrated 8052 MCU core - enabling plug-and-play digital audio playback and recording without external processor intervention. TAS1020APFBG4 integrates all necessary logic for USB Audio Class compliance and direct codec interfacing.
Does the TAS1020APFBG4 require external memory to operate?
No, the TAS1020APFBG4 contains 8 KB of on-chip ROM for firmware storage and 256 B of internal RAM, allowing it to execute USB audio and HID control functions autonomously. External memory is not required for standard AC'97 streaming operation, though optional external EPROM can be used for field firmware upgrades via DFU mode. TAS1020APFBG4 eliminates the need for external flash or RAM in typical reference designs.
What audio protocols does the TAS1020APFBG4 support on its codec interface?
The TAS1020APFBG4 supports four configurable audio interface modes: AC-Link (4-wire, Intel AC'97 compliant), I²S (3-wire, left/right justified), AIC (3-wire, TI-specific variant), and general-purpose GPIO bit-banging. Mode selection is controlled via internal registers and requires no hardware changes. TAS1020APFBG4's flexibility allows direct integration with AC'97 codecs or adaptation to alternate digital audio receivers.
Can the TAS1020APFBG4 support multi-channel audio beyond stereo?
The TAS1020APFBG4 hardware supports four-channel audio output through its AC-Link interface (including rear channels), as confirmed by its pinout and register map. However, the factory firmware included with the EVM does not enable 4-channel operation - it is limited to stereo playback and recording. TAS1020APFBG4's capability is hardware-defined; full 4-channel functionality requires custom firmware development targeting the AC'97 extended register set.
Is the TAS1020APFBG4 still in active production?
TAS1020APFBG4 was released in 2001 and is now obsolete per Texas Instruments' product lifecycle documentation. No new production lots are manufactured, and TI discontinued support after 2008. Aetrix Electronics supplies remaining genuine TI inventory with full traceability, intended for legacy system repair, spare parts fulfillment, and design continuity in long-lifecycle industrial audio equipment where redesign is impractical. TAS1020APFBG4 remains available only as limited legacy stock.
TAS1020APFBG4 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Package/Case:
- 48-TQFP
- Programmable:
- Not Verified
- Protocol:
- USB
- Function:
- Controller
- Interface:
- I2C
- Standards:
- USB 1.1
- Voltage - Supply:
- 3V ~ 3.6V
- Current - Supply:
- -
- Operating Temperature:
- 0°C ~ 70°C
- Supplier Device Package:
- 48-TQFP (7x7)
- Grade:
- -
- Qualification:
- -
TAS1020APFBG4 FAQ
1.How can I place an order for TAS1020APFBG4 through Aetrix?
Please submit a Request for Quotation (RFQ) for TAS1020APFBG4 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 TAS1020APFBG4 reliable?
The price and inventory of TAS1020APFBG4 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TAS1020APFBG4 is usually 5 days.
3.What payment methods are accepted for TAS1020APFBG4?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TAS1020APFBG4 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TAS1020APFBG4?
TAS1020APFBG4 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TAS1020APFBG4 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 TAS1020APFBG4?
For technical support, including TAS1020APFBG4 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TAS1020APFBG4 requirements.
6.How does Aetrix verify that TAS1020APFBG4 is sourced from the original manufacturer or authorized distributors?
All TAS1020APFBG4 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 TAS1020APFBG4 meets industry standards.
7.What is the process for return or replacement of TAS1020APFBG4?
All TAS1020APFBG4 units undergo pre-shipment inspection (PSI). If there is an issue with TAS1020APFBG4, 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 TAS1020APFBG4 part is unused and in its original packaging.
Return procedure for TAS1020APFBG4:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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