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Texas Instruments TAS3218IPZPR
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- Part No.:
- TAS3218IPZPR
- Manufacturer:
- Texas Instruments
- Category:
- DSP (Digital Signal Processors)
- Package:
- 100-TQFP Exposed Pad
- Datasheet:
-
TAS3218IPZPR.pdf
- Description:
- IC DGTL AUDIO PROCESSOR 100HTQFP
- Quantity:
- Payment:
- Shipping:
Inventory:3,950
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Product details
Overview
TAS3218IPZPR from Texas Instruments is a programmable audio system-on-chip (SoC) integrating a 48-bit DSP core, 10-channel stereo analog input mux, 6-channel DAC, stereo headphone amplifier, SPDIF transmitter, and embedded 8051 WARP microcontroller - all in a single 100-pin TQFP package. It delivers 93 dB typical ADC DNR and 97 dB typical DAC DNR for digital TV and mini-component audio systems operating at 48 kHz sample rate.
For engineers reviewing the TAS3218IPZPR datasheet, TAS3218IPZPR pinout, TAS3218IPZPR application, or TAS3218IPZPR equivalent, this page provides verified technical context on its dual-mode clock architecture (master/slave), I²S/Left-Justified/Right-Justified serial interface support, 24-bit data path with 76-bit accumulator, SPDIF compliance per IEC-60958, and analog output drive capability into 16 Ω (24 mW per channel).
Technical Context
The TAS3218IPZPR implements a hierarchical audio processing architecture: a 135-MHz DSP engine with 48-bit data path and 76-bit accumulator executes filter, EQ, and mixing algorithms; a dedicated 8051 WARP MCU handles I²C control, register configuration, and real-time coefficient updates. Clocking supports both master mode (512×Fs crystal oscillator) and slave mode (external MCLKIN/SCLKIN/LRCLKIN).
Digital audio I/O includes three synchronous serial inputs (SDIN1–3) supporting 16-/20-/24-bit I²S, left-justified, or right-justified formats at up to 6 channels total; two serial outputs (SDOUT1, SDOUT2/SPDIF_OUT) deliver 4-channel PCM or consumer-mode SPDIF. Analog subsystem comprises ten stereo line inputs (20 channels), six stereo DAC outputs, three stereo line drivers, and a 24 mW stereo headphone amplifier.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| DSP Core | 48-bit data path with 76-bit accumulator; enables high-precision FIR/IIR filtering without overflow in multi-stage audio processing |
| Max Operating Frequency | 135 MHz DSP clock; supports real-time execution of complex audio algorithms at 48 kHz sampling |
| Analog Inputs | 10 stereo line inputs (20 channels); selectable via internal 10:1 analog mux for flexible source routing |
| DAC Outputs | 6-channel stereo DAC (12 channels); 97 dB typical DNR ensures low-noise playback for premium audio systems |
| Headphone Drive | 24 mW per channel into 16 Ω + 100 pF; sufficient for direct drive of consumer headphones without external amplification |
| SPDIF Compliance | IEC-60958 consumer-mode linear PCM; supports 32/44.1/48 kHz sample rates with bi-phase mark encoding |
| Package | 100-pin TQFP (PZP); 14 mm × 14 mm footprint with exposed thermal pad for thermal management in compact AV receivers |
Pinout & Package
Package: 100-pin TQFP (PZP), RoHS-compliant, with exposed thermal pad. Requires 4.7 µF low-ESR capacitors on VR_DIG1, VR_DIG2, and VR_ANA pins per TI design guidelines.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| SDIN1–SDIN3 | Digital audio input | Accept 16-/20-/24-bit I²S/left/right-justified PCM; support up to 6 total input channels |
| SDOUT1, SDOUT2/SPDIF_OUT | Digital audio output | SDOUT1: 2-channel PCM; SDOUT2 multiplexed as 2-channel PCM or SPDIF bitstream |
| LINEIN1L–LINEIN10R | Analog input | 20-channel stereo line input bank; internally routed to 2-channel ADC with 93 dB DNR |
| DACOUT1L/R–DACOUT2L/R | Analog DAC output | Four-channel DAC output (2× stereo); each pair supports independent volume/gain control |
| LINEOUT1L/R–LINEOUT3L/R | Analog line driver | Three stereo line outputs; 1 Vrms max output level into 10 kΩ load with 100 pF drive capability |
| HPOUTL/HPOUTR | Headphone amplifier output | Direct-drive stereo headphone outputs; 24 mW/channel into 16 Ω, integrated DC-blocking cap emulation |
| MCLKIN/MCLKOUT | Master clock I/O | Supports 256×Fs slave mode input or 256×Fs master mode output; critical for jitter-sensitive DAC/ADC timing |
| I²C_SDA1/I²C_SCL1 | I²C slave interface | Standard-mode (100 kHz) or fast-mode (400 kHz) control bus; no external MCLK required for operation |
Key Features
| Feature | Design Value |
|---|---|
| Programmable Audio DSP | 48-bit data path + 76-bit accumulator enables >120 dB dynamic range in cascaded filter designs |
| Dual Clock Mode | Configurable master (512×Fs crystal) or slave (external MCLKIN) operation; eliminates need for external clock generator |
| SAP Input/Output Normalization | Enables simultaneous I²S and left-justified output formatting - critical for mixed-interface audio subsystems |
| Integrated Power Regulation | On-chip digital and analog LDOs reduce BOM count; VR_DIG1/VR_DIG2/VR_ANA require local 4.7 µF decoupling |
| SPDIF Transmitter | Hardware-accelerated IEC-60958 encoder with configurable channel status bits; no CPU overhead for SPDIF generation |
| 10-Channel Analog Input Mux | Single-chip consolidation of 10 stereo sources; eliminates external analog switches and associated signal degradation |
Applications
| Digital Television Audio Processing | Home Theater Mini-Component Systems |
|---|---|
Use Scenario: Real-time audio enhancement (bass management, virtual surround, loudness compensation) in 4K UHD TVs with multiple HDMI/SPDIF inputs. IC Role / Device Role / Timing Role: Central audio SoC handling analog/digital input routing, DSP-based post-processing, and multi-format output (HDMI ARC, SPDIF, analog line/headphone). Use Value: Single-chip integration reduces PCB area by >40% vs discrete ADC+DSP+DAC solution while maintaining 97 dB DAC DNR for premium audio fidelity. |
Use Scenario: Compact all-in-one audio system supporting Bluetooth, optical SPDIF, USB DAC, and phono inputs. IC Role / Device Role / Timing Role: Audio hub managing 10 analog sources, 3 digital inputs, and concurrent analog/SPDIF/headphone outputs with sample-rate adaptive clocking. Use Value: Embedded 8051 WARP MCU enables firmware-upgradable features (e.g., new EQ profiles) without hardware change or external microcontroller. |
| AV Receiver Preamp/DSP Engine | Professional Audio Monitor Controller |
Use Scenario: 5.1/7.1 channel preamplifier with room correction, dynamic range compression, and speaker delay calibration. IC Role / Device Role / Timing Role: High-precision DSP engine executing multi-tap FIR filters (up to 17408 words delay memory) synchronized to 48 kHz LRCLK with <10 ns jitter tolerance. Use Value: 360 ms delay buffer at 48 kHz allows full-room acoustic measurement and correction without external RAM expansion. |
Use Scenario: Studio monitor controller with input source selection, level matching, dim/mute, and headphone cueing for broadcast environments. IC Role / Device Role / Timing Role: Analog input mux + 6-channel DAC + headphone amp + GPIO-controlled relays enable fully integrated monitoring path with zero-latency analog switching. Use Value: 10 kΩ/100 pF line output drive meets professional gear interconnect standards; mute function asserts within one LRCLK cycle for click-free transitions. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar audio SoC applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| TAS3251DAP | Higher integration: adds 4-channel Class-D amplifier, 128-MHz DSP, and 24-bit/192-kHz audio interface | Targets powered speakers and soundbars requiring integrated amplification; not pin-compatible | Select when needing >10 W/channel Class-D output and higher sample-rate support (up to 192 kHz) |
| TLV320AIC3254IRGZR | Lower integration: standalone audio codec (ADC+DAC) without DSP or MCU; 94 dB DNR, 32-bit/192-kHz interface | Requires external processor for audio algorithms; suited for portable or cost-sensitive designs | Select when audio processing is handled by host application processor and only high-fidelity conversion is needed |
Compared with TAS3251DAP, TAS3218IPZPR offers lower power consumption and mature firmware ecosystem for TV audio, but lacks integrated Class-D drivers. Compared with TLV320AIC3254IRGZR, it provides full real-time DSP autonomy but requires more board space and design effort for algorithm development.
Availability
TAS3218IPZPR is available at Aetrix Electronics and suitable for digital television audio processing, home theater mini-component systems, AV receiver preamp/DSP engines, and professional audio monitor controllers requiring stable component supply across extended production lifecycles.
Supply support for TAS3218IPZPR 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 digital signal processing technologies with over 50 years of innovation in audio and power management ICs.
The TAS3218 product line was designed specifically for high-fidelity, cost-optimized audio subsystems in digital TVs and compact AV equipment - emphasizing single-chip integration of analog I/O, programmable DSP, and system control.
FAQ
What is the maximum sample rate supported by TAS3218IPZPR for SPDIF transmission?
TAS3218IPZPR supports SPDIF transmission at 32 kHz, 44.1 kHz, and 48 kHz sample rates per IEC-60958 consumer specification. The SPDIF encoder is hardware-based and operates synchronously with the internal LRCLK; it does not support 96 kHz or 192 kHz high-resolution formats. TAS3218IPZPR's SPDIF output is fixed to linear PCM format with consumer channel status defaults unless modified via the SPDIF control registers.
Does TAS3218IPZPR require an external crystal oscillator?
TAS3218IPZPR requires an external crystal only when configured in master clock mode, where a 512×Fs crystal (e.g., 24.576 MHz for 48 kHz) connects to XTAL_IN/XTAL_OUT pins. In slave mode, it accepts external MCLKIN, SCLKIN, and LRCLKIN signals - eliminating the crystal. TAS3218IPZPR's internal oscillator and clock dividers generate all required internal clocks (DSP_CLK, MICRO_CLK, SAP clocks) from either source.
How many analog input channels can TAS3218IPZPR process simultaneously?
TAS3218IPZPR supports 10 stereo analog input channels (20 total), routed through an internal 10:1 analog multiplexer to a shared 2-channel ADC. While only two channels are digitized concurrently, the mux enables rapid switching between sources under 8051 WARP MCU control - allowing time-sliced acquisition of all 20 channels at rates up to 48 kHz. TAS3218IPZPR's ADC achieves 93 dB typical DNR for high-fidelity capture.
Can TAS3218IPZPR operate with a single 3.3-V supply?
Yes, TAS3218IPZPR is designed for single 3.3-V operation across all power domains: DVDD1–DVDD4 (digital), AVDD_LI/AVDD_ADC/AVDD_DAC/AVDD_HP/AVDD_OSC/AVDD_REF (analog), and VR_DIG1/VR_DIG2/VR_ANA (internal regulator outputs). Internal LDOs generate required sub-rail voltages; external 3.3-V supply must meet 500 mA peak current and include proper 4.7 µF low-ESR ceramic decoupling on each VR pin per TI SLES235 layout guidelines.
What development tools are officially supported for programming TAS3218IPZPR firmware?
Texas Instruments provides the TAS3218 Evaluation Module (EVM) with GUI-based PurePath Console software for real-time DSP coefficient loading, I²C register access, and audio loopback testing. Firmware development uses Keil µVision IDE with TI's C51 compiler targeting the embedded 8051 WARP core; TI also supplies reference code libraries for common audio functions (EQ, crossover, dynamics processing) compatible with TAS3218IPZPR's 16K program RAM and 2048-word data RAM.
TAS3218IPZPR Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Series:
- -
- Package/Case:
- 100-TQFP Exposed Pad
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Obsolete
- Type:
- Fixed Point
- Interface:
- I2C
- Clock Rate:
- 135MHz
- Non-Volatile Memory:
- -
- On-Chip RAM:
- 48.59kB
- Voltage - I/O:
- 3.30V
- Voltage - Core:
- 3.30V
- Operating Temperature:
- -40°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 100-HTQFP (14x14)
TAS3218IPZPR FAQ
1.How can I place an order for TAS3218IPZPR through Aetrix?
Please submit a Request for Quotation (RFQ) for TAS3218IPZPR 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 TAS3218IPZPR reliable?
The price and inventory of TAS3218IPZPR are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TAS3218IPZPR is usually 5 days.
3.What payment methods are accepted for TAS3218IPZPR?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TAS3218IPZPR transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TAS3218IPZPR?
TAS3218IPZPR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TAS3218IPZPR 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 TAS3218IPZPR?
For technical support, including TAS3218IPZPR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TAS3218IPZPR requirements.
6.How does Aetrix verify that TAS3218IPZPR is sourced from the original manufacturer or authorized distributors?
All TAS3218IPZPR 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 TAS3218IPZPR meets industry standards.
7.What is the process for return or replacement of TAS3218IPZPR?
All TAS3218IPZPR units undergo pre-shipment inspection (PSI). If there is an issue with TAS3218IPZPR, 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 TAS3218IPZPR part is unused and in its original packaging.
Return procedure for TAS3218IPZPR:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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