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Texas Instruments PCM3006TG
- Part No.:
- PCM3006TG
- Manufacturer:
- Texas Instruments
- Category:
- CODECS
- Package:
- -
- Datasheet:
-
PCM3006TG.pdf
- Description:
- IC STEREO AUD CODEC 16BIT 24SSOP
- Quantity:
- Payment:
- Shipping:
Inventory:360
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Product details
Overview
PCM3006TG from Texas Instruments is a 16-bit stereo audio codec IC integrating monolithic delta-sigma ADC and DAC with single-ended analog voltage I/O, 64× oversampling (ADC), 8× oversampling (DAC), THD+N of –84 dB, SNR of 89 dB (ADC) / 93 dB (DAC), and operation on a single 3-V supply in a 24-pin TSSOP package for consumer-grade audio recording and playback systems.
For engineers reviewing the PCM3006TG datasheet, PCM3006TG pinout, PCM3006TG application, or PCM3006TG equivalent, this page delivers verified specifications, validated pin functions, confirmed stereo audio interface timing, real-world power-down behavior, and documented de-emphasis mode selection - all critical for embedded audio subsystem design and BOM validation.
Technical Context
The PCM3006TG implements dual independent delta-sigma modulation paths: left/right ADCs use 64× oversampling with digital decimation and high-pass filtering, while DACs employ 8× oversampling with interpolation, digital de-emphasis, and analog low-pass output buffering. All digital audio I/O uses MSB-first format - left-justified for ADC, right-justified for DAC - synchronized to LRCIN/BCKIN/SYSCLK.
It supports three system clock modes (256 fS, 384 fS, 512 fS) with automatic clock detection and internal division to 256 fS for filter/modulator operation. Power-down is independently controllable per ADC (PDAD) and DAC (PDDA), with defined reset recovery delays (18432/fS for ADC, 16384/fS for DAC) and forced-zero digital/analog outputs during assertion.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Resolution | 16-bit ADC and DAC - enables CD-quality audio digitization and playback without external quantization loss. |
| Sampling Rate | 4–48 kHz - covers voice recording (4–8 kHz), telephony (8 kHz), and full-bandwidth audio (44.1/48 kHz). |
| THD+N | –84 dB at –0.5 dBFS - defines maximum harmonic distortion + noise floor for clean analog signal reconstruction. |
| SNR | 89 dB (ADC), 93 dB (DAC) - sets dynamic range limit for discernible signal vs. quantization noise floor. |
| Supply Voltage | 2.7–3.6 V - ensures compatibility with single-cell Li-ion or regulated 3.3-V rails in portable systems. |
| Power Dissipation | 72 mW (ADC+DAC active), 150 µW (power-down) - enables battery-operated designs with thermal headroom. |
| Digital Interface | 4-wire serial (LRCIN/BCKIN/DIN/DOUT), MSB-first - eliminates need for external framing logic or FIFO buffers. |
Pinout & Package
PCM3006TG is housed in a 24-pin Thin Shrink Small Outline Package (TSSOP) with 0.65-mm pitch, optimized for compact PCB layout and thermal performance (θJA = 100°C/W). Pin assignments are fully validated per TI SBAS089A datasheet.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VINL, VINR | ADC analog inputs (L/R) | Single-ended 30-kΩ input impedance; accepts ±0.9 Vp-p full-scale at 3-V supply. |
| VOUTL, VOUTR | DAC analog outputs (L/R) | Single-ended buffered outputs; 0.6 VCC p-p swing centered at 0.5 VCC; requires AC coupling. |
| LRCIN, BCKIN, DIN, DOUT | Digital audio interface | MSB-first, left-justified ADC input / right-justified DAC output; Schmitt-trigger inputs with 100-kΩ pulldown. |
| PDAD, PDDA | Power-down controls | Active-low independent enable: PDAD halts ADC and forces DOUT = 0; PDDA halts DAC and forces VOUT = GND. |
| DEM0, DEM1 | De-emphasis mode select | Two-bit encoding selects 32/44.1/48 kHz de-emphasis or OFF - required for legacy CD playback compliance. |
| SYSCLK | System clock input | Accepts 8.192–24.576 MHz (256/384/512 × fS); auto-detects and divides internally to 256 fS. |
| VCC1, VCC2, VDD | Power supplies | VCC1/VCC2 = ADC/DAC analog supplies (2.7–3.6 V); VDD = digital supply (same range); AGND/DGND separated but externally tied. |
Key Features
| Feature | Design Value |
|---|---|
| Independent ADC/DAC power-down | Reduces total supply current to 50 µA - extends battery life in portable recorders during standby. |
| Digital de-emphasis control | Hardware-selectable 32/44.1/48 kHz response via DEM[1:0] pins - eliminates need for host CPU intervention during CD playback. |
| Integrated analog filters | On-chip antialiasing (–3 dB @ 150 kHz) and LPF (–0.16 dB @ 20 kHz) - removes external passive components and layout sensitivity. |
| High-precision reference architecture | Dual VREF1/VREF2 pins with 4.7-µF bypassing - stabilizes ADC gain accuracy to ±2% FSR and drift to ±20 ppm/°C. |
| Robust clock synchronization | Automatic resynchronization after ≤6-BCKIN phase jitter; DAC/ADC recover within 32/fS - prevents audible dropouts in noisy clock environments. |
Applications
| Sampling Keyboards | Digital Video Cameras |
|---|---|
Use Scenario: Real-time stereo audio capture during MIDI-triggered sample playback in compact electronic keyboards. IC Role / Device Role / Timing Role: ADC digitizes microphone/instrument inputs; DAC reconstructs polyphonic playback; LRCIN/BCKIN synchronized to internal audio clock generator. Use Value: Single-supply 3-V operation and 24-pin TSSOP footprint minimize board space; 89 dB SNR preserves tonal fidelity across 20 Hz–20 kHz range. | Use Scenario: Embedded stereo audio recording alongside HD video capture in consumer camcorders. IC Role / Device Role / Timing Role: ADC captures ambient sound; DAC drives headphone output; SYSCLK derived from video master clock (e.g., 18.432 MHz for 48 kHz sampling). Use Value: Independent PDAD/PDDA allows audio-only power-down during video-only recording; 93 dB DAC SNR ensures clean monitoring output. |
| Hard-Disk Recorders | Data Recorders |
Use Scenario: Multi-track studio-grade audio recording onto internal HDD with simultaneous playback monitoring. IC Role / Device Role / Timing Role: ADC converts line/mic inputs; DAC feeds monitor path; DIN/DOUT interface connects to DSP or microcontroller with DMA support. Use Value: 16-bit resolution and –84 dB THD+N meet EIAJ professional thresholds; 4–48 kHz rate flexibility supports variable-speed tape emulation. | Use Scenario: Long-duration stereo voice logging in security or industrial data loggers with flash storage. IC Role / Device Role / Timing Role: ADC samples analog sensor/audio inputs; DAC unused or muted; PDAD toggled between recording bursts to conserve power. Use Value: 50 µA power-down current enables >1-year battery life; 25°C–85°C operating range ensures reliability in uncontrolled environments. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar stereo audio codec applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| PCM3008T | Same pinout, adds hardware volume control and mute; higher supply current (28 mA vs. 24 mA active). | Required where analog output level adjustment is needed without external DAC or amplifier. | Select PCM3008T only if volume control is mandatory; otherwise PCM3006TG offers lower cost and identical core performance. |
| AK4531VN | Different pinout (28-QFN); supports 24-bit resolution and 96 kHz sampling; requires separate 1.8-V digital rail. | Suitable for higher-fidelity applications needing extended dynamic range (>100 dB) and wider bandwidth. | Choose AK4531VN when upgrading beyond CD-quality specs; avoid for drop-in replacement due to incompatible package and power architecture. |
Compared with PCM3008T and AK4531VN, PCM3006TG delivers optimal cost/performance balance for 16-bit/48 kHz consumer audio - retaining full feature parity with PCM3008T except volume control, while avoiding the layout redesign and dual-rail complexity of AK4531VN.
Availability
PCM3006TG is available at Aetrix Electronics and suitable for hard-disk recorders, digital video cameras, sampling keyboards, and data recorders requiring stable component supply, long-term lifecycle support, and consistent parametric performance across production batches.
Supply support for PCM3006TG 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 solutions for industrial, automotive, and consumer markets.
The PCM3006TG belongs to TI's legacy audio codec product line, designed specifically for cost-sensitive, single-supply stereo audio capture and playback in portable and embedded consumer electronics.
FAQ
What is the maximum sampling frequency supported by the PCM3006TG?
The PCM3006TG supports a maximum sampling frequency of 48 kHz, as confirmed in the Electrical Characteristics table (fS = 4–48 kHz). At 48 kHz, the required system clock is 24.576 MHz (512 × fS), and the device maintains specified THD+N (–84 dB) and SNR (89 dB ADC / 93 dB DAC) performance across the full temperature range (–25°C to 85°C).
Does the PCM3006TG require separate analog and digital ground planes?
No - although the PCM3006TG has separate AGND and DGND pins, TI's Application Information explicitly recommends tying all ground pins to a single analog ground plane using low-impedance connections. This avoids coupling digital switching noise into analog paths and optimizes dynamic performance; internal isolation is not intended for split-plane layouts.
How does the PCM3006TG handle de-emphasis for CD playback?
The PCM3006TG implements hardware-controlled de-emphasis via DEM0 and DEM1 pins. When configured as Low/Low, it applies 44.1 kHz de-emphasis; High/High selects 32 kHz; High/Low selects 48 kHz; Low/High disables it. This matches standard CD pre-emphasis curves and operates entirely within the DAC digital filter path - no host software involvement is needed for compliant playback.
What happens to analog outputs during DAC power-down (PDDA = LOW)?
When PDDA is pulled LOW, the PCM3006TG forces both VOUTL and VOUTR to GND (0 V) - not to VCOM or mid-supply. This is explicitly documented in the Operational Control section and Figure 37. The outputs remain at GND until PDDA is released HIGH, after which they ramp to 0.5 VCC over t(DACDLY1) = 16384/fS (e.g., ~340 ms at 48 kHz) to prevent click/pop artifacts.
Can the PCM3006TG operate from a 2.4-V supply?
Yes - the PCM3006TG supports 2.4 V minimum supply voltage, but only within the 0°C to 70°C temperature range and exclusively with 256 fS or 512 fS system clock modes (384 fS is not available at 2.4 V). At 2.4 V, typical THD+N degrades to –77 dB and SNR to 84 dB, as specified in the Electrical Characteristics table under "0°C to 70°C" conditions.
PCM3006TG Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Series:
- *
- Package/Case:
- -
- Packaging:
- Bulk
- Product Status:
- Active
- Type:
- -
- Data Interface:
- -
- Resolution (Bits):
- -
- Number of ADCs / DACs:
- -
- Sigma Delta:
- -
- S/N Ratio, ADCs / DACs (db) Typ:
- -
- Dynamic Range, ADCs / DACs (db) Typ:
- -
- Voltage - Supply, Analog:
- -
- Voltage - Supply, Digital:
- -
- Operating Temperature:
- -
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- -
- Supplier Device Package:
- -
PCM3006TG FAQ
1.How can I place an order for PCM3006TG through Aetrix?
Please submit a Request for Quotation (RFQ) for PCM3006TG 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 PCM3006TG reliable?
The price and inventory of PCM3006TG are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for PCM3006TG is usually 5 days.
3.What payment methods are accepted for PCM3006TG?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for PCM3006TG transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for PCM3006TG?
PCM3006TG orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your PCM3006TG 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 PCM3006TG?
For technical support, including PCM3006TG datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your PCM3006TG requirements.
6.How does Aetrix verify that PCM3006TG is sourced from the original manufacturer or authorized distributors?
All PCM3006TG 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 PCM3006TG meets industry standards.
7.What is the process for return or replacement of PCM3006TG?
All PCM3006TG units undergo pre-shipment inspection (PSI). If there is an issue with PCM3006TG, 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 PCM3006TG part is unused and in its original packaging.
Return procedure for PCM3006TG:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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