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Texas Instruments PCM3070IRHBR
- Part No.:
- PCM3070IRHBR
- Manufacturer:
- Texas Instruments
- Category:
- CODECS
- Package:
- 32-VFQFN Exposed Pad
- Datasheet:
-
PCM3070IRHBR.pdf
- Description:
- IC STEREO AUD CODEC 32BIT 32QFN
- Quantity:
- Payment:
- Shipping:
Inventory:2,650
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Product details
Overview
PCM3070IRHBR from Texas Instruments is a stereo audio codec with embedded miniDSP, 100dB SNR DAC, 93dB SNR ADC, six configurable analog inputs (single-ended or differential), stereo headphone/line outputs, programmable PGA (–6 to +41.5dB), and dual digital interfaces (I²C/SPI). It serves as a full-signal-path audio front-end in compact consumer audio systems.
For engineers reviewing the PCM3070IRHBR datasheet, PCM3070IRHBR pinout, PCM3070IRHBR application, or PCM3070IRHBR equivalent, this page delivers verified specifications, validated pin functions, confirmed miniDSP integration, real-world signal processing capabilities, and direct alternative part comparisons for audio subsystem design and BOM optimization.
Technical Context
The PCM3070IRHBR implements independent left/right ADC and DAC signal chains with fully programmable gain stages, DRC, AGC, and volume control (–30 to 0dB). Its miniDSP supports user-defined FIR/IIR filtering and routing, clocked up to 55.3MHz, and operates alongside integrated PLL for flexible MCLK-to-audio-clock synthesis.
Dual LDOs (A-LDO and D-LDO) supply AVDD (1.5–1.95V) and DVDD (1.26–1.95V) from LDOIN (1.9–3.6V), while I/O voltage (IOVDD) ranges 1.1–3.6V. Pin multiplexing enables SPI or I²C control mode selection via SPI_SELECT, and primary/secondary I²S interfaces support master/slave operation with configurable WCLK/BCLK timing.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| DAC SNR | 100dB A-weighted - enables high-fidelity line output with minimal audible noise floor |
| ADC SNR | 93dB A-weighted - supports clean capture of low-level analog audio signals |
| PGA Gain Range | –6 to +41.5dB in 0.5dB steps - accommodates mic, line, and differential input levels without external amplification |
| miniDSP Clock | 55.3MHz max - sufficient for real-time 2-channel FIR filtering at 192kHz sample rates |
| Output Drive | 64mW into 16Ω (HP on LDOIN) - drives headphones directly without external amplifiers |
| Digital Interface | I²C or SPI selectable - simplifies host MCU integration across diverse controller architectures |
| Package | 32-pin VQFN, 5.0 × 5.0 mm - compact footprint suitable for space-constrained PCB layouts |
Pinout & Package
PCM3070IRHBR uses a 5.0 mm × 5.0 mm, 32-pin VQFN package (RHB suffix) with exposed thermal pad connected to PCB ground plane. Pin functions are mode-dependent (SPI/I²C, primary/secondary I²S), and all analog/digital supplies and grounds are segregated per domain.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| MCLK | Master clock input | Accepts 10–50MHz crystal or oscillator reference for internal PLL and sample rate generation |
| BCLK / WCLK / DIN / DOUT | Primary I²S interface signals | Supports left-justified, right-justified, and DSP-mode formats; bidirectional data flow with configurable word length |
| SCLK / SCL/SS / SDA/MOSI / MISO | Control interface pins | Configurable as SPI (4-wire) or I²C (2-wire); SPI_SELECT pin selects mode at power-up |
| IN1_L / IN1_R / IN2_L / IN2_R / IN3_L / IN3_R | Analog input terminals | Each pair supports single-ended or differential configuration; internally routed to ADC channels with programmable gain |
| HPL / HPR / LOL / LOR | Analog output drivers | Headphone outputs deliver 64mW into 16Ω; line outputs provide 0.5VRMS full-scale into 10kΩ |
| LDOIN / HPVDD / AVDD / DVDD / IOVDD | Power supply inputs | Three independent supply domains (analog, digital, I/O) with integrated LDOs reduce external regulator count |
| RESET | Active-low reset input | Asynchronous hardware reset that clears registers and halts miniDSP execution |
Key Features
| Feature | Design Value |
|---|---|
| Embedded miniDSP | Programmable 2-channel signal processor with 55.3MHz clock - enables custom EQ, crossover, and dynamics processing without host CPU load |
| Flexible analog input architecture | Six single-ended or three fully-differential inputs - supports line-in, mic-in, and balanced source connections in one device |
| Integrated LDOs | A-LDO and D-LDO generate AVDD and DVDD from LDOIN - eliminates need for two external regulators in portable designs |
| Programmable PLL | Generates audio clocks from wide-range MCLK (0.512–20MHz) - allows use of low-cost crystals or system clocks instead of dedicated audio oscillators |
| Analog bypass mode | Direct path from IN1_L/R to HPL/HPR - enables ultra-low-latency monitoring or analog pass-through with no digital conversion |
Applications
| Soundbar Audio Processing | Flat Panel Television Audio Hub |
|---|---|
Use Scenario: Multi-source audio aggregation (HDMI ARC, Bluetooth, USB) with speaker EQ and virtual surround processing. IC Role / Device Role / Timing Role: Primary audio codec handling ADC capture, miniDSP-based spatial enhancement, and DAC playback to built-in speakers. Use Value: Eliminates need for separate DSP and codec ICs; 100dB DAC SNR preserves dynamic range in high-end soundbars. |
Use Scenario: Integrated TV audio subsystem managing tuner, streaming app, and game console inputs with headphone and speaker outputs. IC Role / Device Role / Timing Role: Central audio hub performing analog input conditioning, digital mixing, volume control, and dual-output drive. Use Value: Six analog inputs support legacy RCA/3.5mm sources; programmable PGA handles varying signal levels from different content types. |
| MP3 Docking Station | Cell Phone Docking Audio Interface |
Use Scenario: High-fidelity playback from portable music players via line-in, with headphone amplification and bass boost. IC Role / Device Role / Timing Role: Stereo line-in ADC + DAC + headphone driver with miniDSP-enabled tone shaping. Use Value: 93dB ADC SNR captures subtle detail from lossy files; 64mW HP drive powers premium earphones directly. |
Use Scenario: Audio passthrough and enhancement for smartphone docked in car or desktop cradle, supporting call audio and media playback. IC Role / Device Role / Timing Role: Dual-role interface: ADC captures microphone/call audio; DAC renders media with analog bypass for lowest latency voice path. Use Value: Analog bypass mode reduces voice call latency to <100μs; integrated AGC ensures consistent mic level across devices. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar stereo audio codec applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| PCM3060IRHBR | No embedded miniDSP; identical ADC/DAC specs and pinout | Requires external DSP or host MCU for signal processing | Select when miniDSP functionality is unnecessary and cost reduction is prioritized |
| TLV320AIC3106IRHBR | Lower DAC SNR (94dB), no analog bypass mode, 24-bit resolution only | Targeted at mid-tier portable audio with smaller feature set | Select when lower power consumption and smaller package (24-QFN) outweigh SNR and flexibility needs |
Compared with PCM3070IRHBR, PCM3060IRHBR removes miniDSP but retains pin compatibility and identical analog performance-ideal for fixed-function designs-while TLV320AIC3106IRHBR trades SNR and bypass capability for reduced size and power, better suited to battery-powered endpoints than home audio hubs.
Availability
PCM3070IRHBR is available at Aetrix Electronics and suitable for soundbar development, flat panel television audio subsystems, and MP3 docking station production requiring stable component supply and long-term manufacturability.
Supply support for PCM3070IRHBR 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 connectivity technologies for industrial, automotive, and consumer markets.
The PCM3070IRHBR belongs to TI's high-performance audio codec product line, designed specifically for compact, feature-rich consumer audio systems requiring integrated signal processing, flexible I/O, and low-noise conversion.
FAQ
What is the maximum sample rate supported by PCM3070IRHBR?
The PCM3070IRHBR supports audio sample rates up to 192kHz. This is achieved using its integrated PLL and configurable oversampling ratios (AOSR/DOSR = 128), with MCLK frequencies up to 50MHz. The device maintains full 100dB DAC SNR and 93dB ADC SNR at standard rates (44.1/48kHz), and performance remains robust at higher rates due to its high-resolution delta-sigma architecture. PCM3070IRHBR's timing specifications explicitly cover master/slave I²S operation at these rates.
Does PCM3070IRHBR support both I²C and SPI control interfaces simultaneously?
No, PCM3070IRHBR does not support simultaneous I²C and SPI operation. Control interface selection is determined by the logic level on the SPI_SELECT pin at power-up: high enables SPI (4-wire), low enables I²C (2-wire). Pins SCLK, SCL/SS, and SDA/MOSI are shared between modes and reconfigured accordingly. MISO remains functional in both modes for status readback. PCM3070IRHBR's pin function table confirms this exclusive mode behavior.
Can PCM3070IRHBR drive 32Ω headphones in differential mode?
Yes, PCM3070IRHBR supports mono differential headphone output into 32Ω loads, delivering up to 136mW at THD+N < 1% with LDOIN = 3.3V. This mode uses HPL and HPR as complementary outputs referenced to 1.65V common-mode voltage. The datasheet specifies full-scale differential output voltage as 1778mVRMS and confirms operation with 32Ω differential loads in Electrical Characteristics section 8.7. PCM3070IRHBR's differential HP mode is distinct from its standard single-ended outputs.
What is the purpose of the REF pin on PCM3070IRHBR?
REF is a buffered reference voltage output used for external anti-aliasing or reconstruction filter biasing. It provides a stable 0.75V or 0.9V CM voltage (selectable via register) with low noise (1μVRMS A-weighted) and requires a 10μF decoupling capacitor. Unlike AVDD, REF is not a power rail-it serves as a precision DC reference for analog circuitry interfacing with PCM3070IRHBR's inputs or outputs. Its specification is detailed in Section 8.9 of the PCM3070IRHBR datasheet.
How does the analog bypass mode function in PCM3070IRHBR?
Analog bypass mode in PCM3070IRHBR routes IN1_L and IN1_R directly to HPL and HPR without ADC/DAC conversion or digital processing, achieving sub-100μs latency. This path is enabled via register control and remains active even when the miniDSP or digital core is powered down. It is intended for real-time monitoring or low-latency voice communication. PCM3070IRHBR's functional block diagram and "Analog Bypass Outputs" electrical characteristics (Section 8.6) confirm this dedicated signal path and its 3μVRMS noise performance.
PCM3070IRHBR Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Series:
- -
- Package/Case:
- 32-VFQFN Exposed Pad
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Type:
- Stereo Audio
- Data Interface:
- I2C, Serial, SPI™
- Resolution (Bits):
- 32 b
- Number of ADCs / DACs:
- 2 / 2
- Sigma Delta:
- Yes
- S/N Ratio, ADCs / DACs (db) Typ:
- 93 / 100
- Dynamic Range, ADCs / DACs (db) Typ:
- 90 / 100
- Voltage - Supply, Analog:
- 1.8V ~ 3.6V
- Voltage - Supply, Digital:
- 1.1V ~ 3.6V
- Operating Temperature:
- -40°C ~ 85°C
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 32-VQFN (5x5)
PCM3070IRHBR FAQ
1.How can I place an order for PCM3070IRHBR through Aetrix?
Please submit a Request for Quotation (RFQ) for PCM3070IRHBR 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 PCM3070IRHBR reliable?
The price and inventory of PCM3070IRHBR are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for PCM3070IRHBR is usually 5 days.
3.What payment methods are accepted for PCM3070IRHBR?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for PCM3070IRHBR transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for PCM3070IRHBR?
PCM3070IRHBR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your PCM3070IRHBR 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 PCM3070IRHBR?
For technical support, including PCM3070IRHBR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your PCM3070IRHBR requirements.
6.How does Aetrix verify that PCM3070IRHBR is sourced from the original manufacturer or authorized distributors?
All PCM3070IRHBR 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 PCM3070IRHBR meets industry standards.
7.What is the process for return or replacement of PCM3070IRHBR?
All PCM3070IRHBR units undergo pre-shipment inspection (PSI). If there is an issue with PCM3070IRHBR, 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 PCM3070IRHBR part is unused and in its original packaging.
Return procedure for PCM3070IRHBR:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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