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Texas Instruments PCM3001EG4
- Part No.:
- PCM3001EG4
- Manufacturer:
- Texas Instruments
- Category:
- CODECS
- Package:
- 28-SSOP (0.209", 5.30mm Width)
- Datasheet:
-
PCM3001EG4.pdf
- Description:
- IC STEREO AUD CODEC 18BIT 28SSOP
- Quantity:
- Payment:
- Shipping:
Inventory:4,192
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Product details
Overview
PCM3001EG4 from Texas Instruments is an 18-bit stereo audio codec IC integrating monolithic delta-sigma ADC and DAC with single-ended analog voltage input/output, 64× oversampling ADC digital decimation filter, 8× oversampling DAC digital interpolation filter, and pin-programmable audio data format selection. It operates from a single 5-V supply in SSOP-28 package and targets cost-sensitive consumer audio systems requiring THD+N ≤ –90 dB (DAC) and SNR ≥ 98 dB.
For engineers reviewing the PCM3001EG4 datasheet, PCM3001EG4 pinout, PCM3001EG4 application, or PCM3001EG4 equivalent, this page delivers verified technical context, exact pin functions, real-world audio subsystem roles, and validated alternative parts for stereo audio interface design, sample-rate flexibility (4–48 kHz), and single-supply embedded audio conversion.
Technical Context
The PCM3001EG4 implements dual delta-sigma modulation: 64× oversampled ADCs with digital high-pass filtering and 8× oversampled DACs with de-emphasis and soft mute. Its pin-strapped FMT0/FMT1/FMT2 inputs select among seven serial audio formats (I²S, left/right-justified, DSP-frame) without software configuration.
It uses separate analog grounds (AGND1/AGND2) and power supplies (VCC1/VCC2/VDD) to isolate ADC/DAC digital noise, supports system clocks at 256fS/384fS/512fS, and includes internal power-on reset requiring ≥3 system clock cycles before VDD > 4 V and 1024 cycles for full initialization.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Resolution | 18-bit ADC and DAC - enables high-fidelity audio capture and playback with ≥97 dB dynamic range |
| THD+N (DAC) | –90 dB at full scale - meets CD-quality distortion requirements for consumer stereo output stages |
| SNR (DAC) | 98 dB A-weighted - ensures low-noise analog output suitable for line-level audio interfaces |
| Sampling Rate | 4 kHz to 48 kHz - supports voice, telephony, karaoke, DAT, and CD-standard audio applications |
| System Clock | 256fS/384fS/512fS - allows flexible clock source selection (crystal or external CMOS/TTL) with automatic division to 256fS |
| Analog I/O | Single-ended voltage input/output (2.9 Vp-p full scale) - simplifies front-end design with no differential amplifiers required |
| Digital Interface | Four-wire synchronous serial (LRCIN/BCKIN/DIN/DOUT) - compatible with standard audio DSPs and microcontrollers |
Pinout & Package
Package: 28-pin SSOP (DB), 5.3 mm × 10.2 mm body, 0.65 mm pitch.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VINL / VINR | ADC analog input (L/R) | Accepts single-ended 2.9 Vp-p audio signals; requires external antialiasing RC network (CINPL/CINNL etc.) |
| VOUTL / VOUTR | DAC analog output (L/R) | Drives 5-kΩ load with 0.62×VCC2 p-p swing; includes integrated analog low-pass filter and output buffer |
| FMT0 / FMT1 / FMT2 | Data format control inputs | Pin-strapped logic inputs selecting one of seven serial audio formats (e.g., I²S, right-justified, DSP-frame) |
| LRCIN / BCKIN / DIN / DOUT | Digital audio interface | Standard four-wire interface; LRCIN = frame sync, BCKIN = bit clock, DIN/DOUT = bidirectional data lines |
| RSTB | Active-low reset input | Asynchronous reset requiring ≥40 ns pulse width while system clock is active; initiates 1024-cycle initialization |
| XTI / XTO / CLKIO | Oscillator/clock interface | Supports crystal (XTI–XTO) or external clock (XTI or CLKIO); CLKIO serves as buffered oscillator output or clock input |
| VCC1 / VCC2 / VDD | Power supplies | VCC1 powers ADC analog section, VCC2 powers DAC analog section, VDD powers digital core - enables independent supply noise isolation |
| AGND1 / AGND2 / DGND | Ground terminals | Separate analog ground returns for ADC (AGND1), DAC (AGND2), and digital circuitry (DGND) - critical for PSRR and crosstalk performance |
Key Features
| Feature | Design Value |
|---|---|
| Pin-programmable audio format | Selects among 7 serial formats (I²S, left/right-justified, DSP-frame) via FMT0–FMT2 pins - eliminates firmware dependency and simplifies hardware-only designs |
| Dual delta-sigma architecture | 64× oversampled ADC + 8× oversampled DAC - achieves 94 dB ADC SNR and 98 dB DAC SNR without external oversampling hardware |
| Integrated analog filters | On-chip antialiasing (170 kHz cutoff) and reconstruction low-pass filters - removes need for external op-amp filter stages |
| Single 5-V supply operation | Operates from 4.5–5.5 V on all rails - reduces BOM count and PCB area vs. multi-rail audio codecs |
| Digital de-emphasis & soft mute | Built-in de-emphasis (32/44.1/48 kHz) and soft mute control - enables compliant CD playback and click-free channel muting |
Applications
| Mini-Disk Recorders | Karaoke Systems |
|---|---|
Use Scenario: Portable digital audio recorder capturing stereo line/mic input with real-time encoding and playback. IC Role / Device Role / Timing Role: Audio codec performing simultaneous 18-bit ADC sampling and DAC playback at 44.1 kHz with synchronized LRCIN/BCKIN timing. Use Value: Single-chip solution eliminates external op-amps and filters; pin-strapped format selection matches host DSP's I²S interface without software reconfiguration. | Use Scenario: Consumer karaoke mixer combining microphone input, music track playback, and vocal effects processing. IC Role / Device Role / Timing Role: Stereo ADC digitizes mic signal; stereo DAC outputs mixed audio to speakers with de-emphasis enabled for CD tracks. Use Value: 98 dB DAC SNR ensures clean vocal reproduction; soft mute prevents pop noise during effect switching; 5-V single supply simplifies power design. |
| DSP-Based Car Stereo | Hard-Disk Recorders |
Use Scenario: In-vehicle infotainment head unit with DSP-based equalization, surround synthesis, and Bluetooth audio streaming. IC Role / Device Role / Timing Role: Audio interface between DSP and analog amplifier; handles 48 kHz stereo streams with low-latency 11.1/fS DAC delay. Use Value: Separate AGND1/AGND2 and VCC1/VCC2 rails minimize digital switching noise coupling into sensitive analog amplifier inputs. | Use Scenario: Professional-grade desktop audio recorder storing uncompressed WAV files to internal HDD. IC Role / Device Role / Timing Role: High-fidelity ADC front-end capturing studio-quality 18-bit/44.1 kHz audio with ±0.05 dB pass-band ripple and –65 dB stop-band attenuation. Use Value: 94 dB ADC SNR and 64× oversampling ensure minimal quantization noise; digital high-pass filter removes DC offset without external components. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar stereo audio codec applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| PCM3000E | Software-configurable via 3-wire serial interface (MC/MD/ML); lacks pin-strapped format control; identical ADC/DAC specs and package | Requires microcontroller firmware support for format selection; better suited for programmable systems needing runtime reconfiguration | Choose PCM3000E when dynamic format switching (e.g., I²S ↔ DSP-frame) is required; PCM3001EG4 is preferred for fixed-format, firmware-light designs. |
| AK4552VN | 24-bit resolution, 3.3-V digital supply, different pinout (SSOP-28), no built-in de-emphasis; THD+N –95 dB (DAC) | Targets higher-resolution professional audio; requires level-shifting for 5-V systems; lacks pin-strapped simplicity | Choose AK4552VN only if 24-bit resolution and lower THD+N are mandatory; PCM3001EG4 offers proven 18-bit performance with simpler 5-V integration. |
Compared with PCM3000E and AK4552VN, the PCM3001EG4 delivers optimal balance of pin-strapped ease-of-use, 5-V compatibility, and CD-quality 18-bit performance-making it ideal for cost-sensitive, fixed-format consumer audio where firmware overhead and supply complexity must be minimized.
Availability
PCM3001EG4 is available at Aetrix Electronics and suitable for mini-disk recorders, karaoke systems, and DSP-based car stereo applications requiring stable component supply, long-lifecycle availability, and consistent electrical performance across production batches.
Supply support for PCM3001EG4 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 technologies with decades of audio IC expertise.
The PCM3001EG4 belongs to TI's legacy audio codec product line designed specifically for cost-effective, high-fidelity stereo audio conversion in consumer electronics-emphasizing single-supply operation, integrated filtering, and hardware-configurable interfaces.
FAQ
What is the maximum sampling rate supported by the PCM3001EG4?
The PCM3001EG4 supports sampling rates from 4 kHz up to 48 kHz, with guaranteed performance at 44.1 kHz and 48 kHz. At 48 kHz, the device requires a 512fS system clock (24.576 MHz) and maintains THD+N ≤ –90 dB and SNR ≥ 97 dB for the DAC path. The ADC and DAC digital filters are optimized for this range, and the datasheet specifies full electrical characterization at 44.1 kHz.
Does the PCM3001EG4 require external analog filters?
No, the PCM3001EG4 integrates both antialiasing and reconstruction analog filters. Its ADC section includes an on-chip antialiasing filter with a 170 kHz –3 dB cutoff (using external 470 pF capacitors), and its DAC section features an integrated analog low-pass filter with –0.16 dB response at 20 kHz. External RC networks are required only for the ADC input stage (CINPL/CINNL etc.), not for final output filtering.
How does the PCM3001EG4 handle clock synchronization between LRCIN and the system clock?
The PCM3001EG4 requires synchronization between LRCIN (frame clock) and the system clock (XTI/CLKIO). If phase jitter causes LRCIN to drift more than 6 bit clocks (BCKIN) per frame period, DAC and ADC operations halt within 1/fS, forcing analog outputs to VCC2/2 and digital outputs to bipolar zero until resynchronization occurs. Stable PLL-derived or crystal-locked clock sources are recommended to maintain <5-bit-clock jitter.
Can the PCM3001EG4 operate from a 3.3-V supply?
No, the PCM3001EG4 is specified only for 4.5 V to 5.5 V operation on all supplies (VCC1, VCC2, VDD). Its absolute maximum ratings prohibit operation below 4.5 V, and electrical characteristics-including THD+N, SNR, and full-scale output swing-are guaranteed only at VCC = VDD = 5 V. Using 3.3 V will result in undefined behavior and failure to meet datasheet specifications.
What is the function of the FMT0, FMT1, and FMT2 pins on the PCM3001EG4?
The FMT0, FMT1, and FMT2 pins on the PCM3001EG4 are dedicated hardware control inputs that select one of seven supported serial audio data formats (e.g., I²S, left-justified, right-justified, DSP-frame) through static logic levels. Unlike the software-configurable PCM3000, these pins eliminate the need for serial programming-enabling immediate format selection at power-up based solely on PCB strapping, which simplifies design and improves boot reliability.
PCM3001EG4 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Series:
- -
- Package/Case:
- 28-SSOP (0.209", 5.30mm Width)
- Packaging:
- Tube
- Product Status:
- Discontinued at Digi-Key
- Type:
- Stereo Audio
- Data Interface:
- Serial
- Resolution (Bits):
- 18 b
- Number of ADCs / DACs:
- 2 / 2
- Sigma Delta:
- Yes
- S/N Ratio, ADCs / DACs (db) Typ:
- 94 / 98
- Dynamic Range, ADCs / DACs (db) Typ:
- 94 / 97
- Voltage - Supply, Analog:
- 4.5V ~ 5.5V
- Voltage - Supply, Digital:
- 4.5V ~ 5.5V
- Operating Temperature:
- -25°C ~ 85°C
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 28-SSOP
PCM3001EG4 FAQ
1.How can I place an order for PCM3001EG4 through Aetrix?
Please submit a Request for Quotation (RFQ) for PCM3001EG4 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 PCM3001EG4 reliable?
The price and inventory of PCM3001EG4 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for PCM3001EG4 is usually 5 days.
3.What payment methods are accepted for PCM3001EG4?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for PCM3001EG4 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for PCM3001EG4?
PCM3001EG4 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your PCM3001EG4 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 PCM3001EG4?
For technical support, including PCM3001EG4 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your PCM3001EG4 requirements.
6.How does Aetrix verify that PCM3001EG4 is sourced from the original manufacturer or authorized distributors?
All PCM3001EG4 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 PCM3001EG4 meets industry standards.
7.What is the process for return or replacement of PCM3001EG4?
All PCM3001EG4 units undergo pre-shipment inspection (PSI). If there is an issue with PCM3001EG4, 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 PCM3001EG4 part is unused and in its original packaging.
Return procedure for PCM3001EG4:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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