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NXP Semiconductors UDA1380TT/N2,512
- Part No.:
- UDA1380TT/N2,512
- Manufacturer:
- NXP Semiconductors
- Category:
- CODECS
- Package:
- 32-TSSOP (0.240", 6.10mm Width)
- Datasheet:
-
UDA1380TT/N2,512.pdf
- Description:
- IC AUDIO CODER-DECODER 32-TSSOP
- Quantity:
- Payment:
- Shipping:
Inventory:1,741
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Product details
Overview
UDA1380TT/N2,512 from NXP Semiconductors is a 24-bit stereo audio coder-decoder IC designed for MD, CD, and MP3 playback/recording systems. It integrates dual-path ADC (8–55 kHz) and DAC (8–100 kHz), programmable gain amplifiers (PGA: 0–24 dB), low-noise microphone amplifier (LNA + VGA: 29 dB fixed + 0–30 dB variable), and a 16 Ω-capable headphone driver with short-circuit protection. It supports I²S, MSB-justified, and LSB-justified digital audio interfaces.
For engineers reviewing the UDA1380TT/N2,512 datasheet, UDA1380TT/N2,512 pinout, UDA1380TT/N2,512 application, or UDA1380TT/N2,512 equivalent, this device delivers verified analog front-end flexibility, dual-clock domain operation (SYSCLK/WSPLL), L3-bus and I²C-bus control, AGC-enabled voice recording, and hardware-level plop prevention - critical for portable audio system design and BOM consolidation in consumer playback devices.
Technical Context
The UDA1380TT/N2,512 implements independent clock domains: ADC and DAC can operate simultaneously at different sampling rates using either SYSCLK (256fs–768fs) or WSPLL-recovered clocks (75–150 MHz VCO range). Its decimation filter includes digital AGC with configurable attack/decay and target level, while the interpolation filter provides de-emphasis (32/44.1/48/96 kHz), bass boost (0–24 dB), and treble (0–6 dB) via register control.
Analog signal paths are fully segregated: stereo line input feeds a PGA with 12 kΩ input impedance; mono mic input uses a dedicated LNA (5 kΩ, 29 dB) plus VGA (0–30 dB, 2 dB steps); headphone output drives 16 Ω loads directly via VREF(HP) bias, eliminating external DC-blocking capacitors. All analog supplies (VDDA(AD)/VDDA(DA)/VDDA(HP)) operate from 2.4–3.6 V.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| ADC Sampling Range | 8–55 kHz - supports MiniDisc, CD, and MP3 recording; excludes DVD-Audio (96 kHz) |
| DAC Sampling Range | 8–100 kHz - enables full-range playback including DVD-Audio-compatible content |
| ADC SNR (A-weighted) | 92–97 dB - ensures high-fidelity digitization of line/mic inputs with minimal quantization noise |
| DAC SNR (A-weighted) | 95–100 dB - delivers studio-grade playback fidelity on line outputs |
| Headphone Output Power | 30–40 mW into 16 Ω - sufficient for direct drive of portable headphones without external amplification |
| Digital Interface Support | I²S, MSB-justified, LSB-justified (16/18/20/24-bit) - ensures compatibility with diverse SoCs and DSPs |
| Supply Voltage Range | 2.4–3.6 V for all analog/digital rails - enables single-supply battery-powered operation (e.g., 3×AA or Li-ion) |
| Power-down Current | 2 μA total - meets ultra-low-power requirements for standby in portable audio devices |
Pinout & Package
TSSOP32 package (SOT487-1), 6.1 mm body width, 0.65 mm lead pitch, thermally enhanced for audio IC power dissipation.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VINL / VINR | Stereo line input | Accepts differential or single-ended signals; connected to PGA with 0–24 dB gain control in 3 dB steps |
| VINM | Mono microphone input | Feeds LNA (29 dB fixed gain) + VGA (0–30 dB, 2 dB steps); 5 kΩ input impedance |
| VOUTLHP / VOUTRHP | Stereo headphone output | Capable of driving 16 Ω loads directly; short-circuit protected with status flag readable via I²C/L3 |
| VREF(HP) | Headphone reference voltage | Provides DC bias for capacitorless headphone coupling; eliminates need for 100 μF external caps |
| L3DATA/SDA & L3CLOCK/SCL | Configurable bus interface | Supports both L3-bus (2-device addressing) and I²C-bus (400 kHz) for register access and mode control |
| SEL_L3_IIC | Interface selection | Hardware-selectable mode: logic high = I²C, logic low = L3-bus - enables flexible microcontroller integration |
| RESET | Power-on reset input | Pull-down enabled; initiates POR sequence ensuring known state after power-up |
| SYSCLK | System clock input | Accepts 256fs/384fs/512fs/768fs master clock; required for WSPLL-free operation or as PLL reference |
Key Features
| Feature | Design Value |
|---|---|
| Integrated AGC for microphone path | Configurable attack/decay timing and target level via registers - enables hands-free voice recording with consistent loudness |
| Dual independent clock domains | ADC and DAC operate at different fs simultaneously (e.g., 44.1 kHz record + 48 kHz playback) - supports concurrent record/playback |
| Capacitorless headphone output | VREF(HP) pin provides internal DC bias - removes need for bulky 100 μF output capacitors, saving PCB space and cost |
| Digital silence detection | Status bit readable via I²C/L3 - allows host MCU to trigger sleep mode during silent playback segments, reducing system power |
| Hardware plop prevention | Internal soft-mute and DC cancellation circuitry - eliminates audible click/pop during power-up, channel switching, or mute transitions |
| Flexible digital audio interface | I²S, MSB-justified, LSB-justified support up to 24-bit word length - interoperable with TI, Cirrus, and ST audio processors |
Applications
| MD/CD Portable Player | MP3 Recorder with Mic Input |
|---|---|
Use Scenario: Battery-powered handheld player decoding compressed audio and driving headphones directly. IC Role / Device Role / Timing Role: Audio codec handles real-time decoding (DAC), analog output buffering, and volume/tone control via I²C. Use Value: Integrated 16 Ω headphone driver and capacitorless VREF(HP) eliminate external amplifiers and large DC-blocking caps, reducing BoM count by ≥3 components. |
Use Scenario: Voice memo recorder capturing speech with automatic level adjustment in varying acoustic environments. IC Role / Device Role / Timing Role: ADC front-end with LNA+VGA and digital AGC performs adaptive gain control before compression. Use Value: On-chip AGC with configurable attack/decay avoids software-based level management, lowering MCU load and firmware complexity. |
| FM Tuner Audio Processor | Multi-Source Audio Mixer |
Use Scenario: FM radio module requiring analog gain control and headphone output without digital processing. IC Role / Device Role / Timing Role: Analog bypass mode routes tuner output through PGA and headphone driver while disabling ADC/DAC paths. Use Value: Hardware analog pass-through mode enables FM audio routing without clocking digital blocks - cuts power consumption to <2 μA standby. |
Use Scenario: Portable speaker docking station mixing line-in (DAC output) and mic-in (ADC output) for karaoke or conferencing. IC Role / Device Role / Timing Role: Digital mixer inside interpolator combines ADC and serial input streams at identical fs for synchronized output. Use Value: Internal digital mixer eliminates need for external DSP or FPGA, enabling single-chip audio mixing with <100 ns inter-channel skew. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar stereo audio codec applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| AK4537VN | 24-bit stereo codec with 96 kHz DAC support; lacks integrated headphone driver (requires external amp); no VREF(HP) capacitorless output | Better suited for studio-grade playback where external amplification is acceptable; not drop-in for space-constrained portable designs | Select AK4537VN only when higher DAC sample rate (96 kHz) is mandatory and board area permits external headphone amp. |
| TLV320AIC23BPW | Lower SNR (90 dB DAC), 3.3 V-only supply, no AGC, no analog bypass mode; supports I²S/MSB/LSB but lacks WSPLL clock regeneration | Targeted at cost-sensitive embedded audio where advanced features like plop prevention or mic AGC are non-critical | Choose TLV320AIC23BPW for simple playback-only applications with fixed 44.1/48 kHz fs and no voice recording requirement. |
Compared with AK4537VN and TLV320AIC23BPW, UDA1380TT/N2,512 uniquely integrates capacitorless headphone drive, hardware AGC, analog bypass, and dual-clock-domain operation - making it the only option among the three that satisfies concurrent record/playback, ultra-low-power standby, and PCB-area-constrained portable audio design.
Availability
UDA1380TT/N2,512 is available at Aetrix Electronics and suitable for MD players, portable CD recorders, MP3 voice loggers, FM tuner audio processors, and multi-source audio mixers requiring stable component supply across production lifecycles.
Supply support for UDA1380TT/N2,512 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
NXP Semiconductors is a global semiconductor leader focused on secure connectivity solutions for automotive, industrial, and consumer applications, with deep expertise in mixed-signal audio processing.
The UDA1380 product line was engineered specifically for portable consumer audio systems requiring high-fidelity, low-power, and compact integration - targeting MD, CD, and early MP3 portable players before the smartphone era.
FAQ
What is the maximum sampling frequency supported by the ADC in UDA1380TT/N2,512?
The ADC in UDA1380TT/N2,512 supports sampling frequencies from 8 kHz to 55 kHz. This range covers MiniDisc (44.1 kHz), CD (44.1 kHz), and MP3 playback/recording standards but explicitly excludes DVD-Audio (96 kHz), as confirmed in Section 1.1 of the datasheet.
Does UDA1380TT/N2,512 support capacitorless headphone output?
Yes, UDA1380TT/N2,512 supports capacitorless headphone output via the VREF(HP) pin, which provides an internal DC bias reference. This allows direct connection of 16 Ω headphones without external DC-blocking capacitors - a feature validated in Section 3 (General Description) and Table 4 (Headphone Driver specs).
Can UDA1380TT/N2,512 operate with different sampling rates for ADC and DAC simultaneously?
Yes, UDA1380TT/N2,512 supports independent clock domains: the ADC can run from SYSCLK while the DAC runs from WSPLL-regenerated clocks (or vice versa), enabling concurrent operation at different sampling rates - e.g., 44.1 kHz recording and 48 kHz playback - as detailed in Section 8.1 and Figure 5.
What interfaces does UDA1380TT/N2,512 support for register configuration?
UDA1380TT/N2,512 supports both L3-bus and I²C-bus interfaces for register access and functional control. The SEL_L3_IIC pin selects between them, and both support two device addresses - enabling flexible integration with microcontrollers lacking native L3 support.
Is automatic gain control (AGC) available for microphone input on UDA1380TT/N2,512?
Yes, UDA1380TT/N2,512 includes a digital AGC block in the decimation filter path, configurable via L3-bus or I²C-bus registers for attack time, decay time, and target level. It is intended specifically for microphone applications with variable source distance, as described in Sections 1.4 and 8.3.4.
UDA1380TT/N2,512 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- NXP Semiconductors
- Series:
- -
- Package/Case:
- 32-TSSOP (0.240", 6.10mm Width)
- Packaging:
- -
- Product Status:
- Obsolete
- Type:
- Stereo Audio
- Data Interface:
- I2C, Serial
- Resolution (Bits):
- 24 b
- Number of ADCs / DACs:
- 2 / 2
- Sigma Delta:
- No
- S/N Ratio, ADCs / DACs (db) Typ:
- 97 / 97
- Dynamic Range, ADCs / DACs (db) Typ:
- -
- Voltage - Supply, Analog:
- 2.4V ~ 3.6V
- Voltage - Supply, Digital:
- 2.4V ~ 3.6V
- Operating Temperature:
- -40°C ~ 85°C
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 32-TSSOP
UDA1380TT/N2,512 FAQ
1.How can I place an order for UDA1380TT/N2,512 through Aetrix?
Please submit a Request for Quotation (RFQ) for UDA1380TT/N2,512 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 UDA1380TT/N2,512 reliable?
The price and inventory of UDA1380TT/N2,512 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for UDA1380TT/N2,512 is usually 5 days.
3.What payment methods are accepted for UDA1380TT/N2,512?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for UDA1380TT/N2,512 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for UDA1380TT/N2,512?
UDA1380TT/N2,512 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your UDA1380TT/N2,512 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 UDA1380TT/N2,512?
For technical support, including UDA1380TT/N2,512 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your UDA1380TT/N2,512 requirements.
6.How does Aetrix verify that UDA1380TT/N2,512 is sourced from the original manufacturer or authorized distributors?
All UDA1380TT/N2,512 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 UDA1380TT/N2,512 meets industry standards.
7.What is the process for return or replacement of UDA1380TT/N2,512?
All UDA1380TT/N2,512 units undergo pre-shipment inspection (PSI). If there is an issue with UDA1380TT/N2,512, 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 UDA1380TT/N2,512 part is unused and in its original packaging.
Return procedure for UDA1380TT/N2,512:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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