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NXP Semiconductors UDA1380TT/N2,518
- Part No.:
- UDA1380TT/N2,518
- Manufacturer:
- NXP Semiconductors
- Category:
- CODECS
- Package:
- 32-TSSOP (0.240", 6.10mm Width)
- Datasheet:
-
UDA1380TT/N2,518.pdf
- Description:
- IC AUDIO CODER-DECODER 32-TSSOP
- Quantity:
- Payment:
- Shipping:
Inventory:2,517
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Product details
Overview
UDA1380TT/N2,518 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: +29 dB fixed, VGA: 0–30 dB), and a 16 Ω-capable headphone driver with short-circuit protection. It supports I²S, MSB-justified, and LSB-justified digital interfaces in portable audio players.
For engineers reviewing the UDA1380TT/N2,518 datasheet, UDA1380TT/N2,518 pinout, UDA1380TT/N2,518 application, or UDA1380TT/N2,518 equivalent, this page delivers verified specifications including dual-clock domain operation (SYSCLK/WSPLL), L3-bus and I²C-bus control, AGC-enabled voice recording, de-emphasis at 32/44.1/48/96 kHz, and DC-coupled headphone output via VREF(HP).
Technical Context
The UDA1380TT/N2,518 implements independent clock domains: SYSCLK (256fs/384fs/512fs/768fs) for system-synchronous operation and WSPLL (locking to WSI input) for asynchronous sample-rate conversion between ADC and DAC paths. It supports mixed-mode operation - e.g., ADC running on SYSCLK while DAC runs on regenerated WSPLL clocks - enabling flexible integration with diverse host controllers.
Its analog front-end includes stereo line inputs with PGA (12 kΩ input impedance), mono mic input with LNA+VGA (5 kΩ), and integrated high-pass DC cancellation. The digital signal path features decimation (128fs → fs) with AGC and interpolation (fs → 128fs) with 5th-order noise shaping, cosine soft mute, and independent left/right tone control (bass boost up to 24 dB, treble up to 6 dB).
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Supply Voltage | 2.4–3.6 V analog/digital; 5 V tolerant digital inputs enable direct interfacing with 5 V microcontrollers. |
| ADC Sampling Range | 8–55 kHz; supports MiniDisc, CD, and MP3 recording but excludes DVD-Audio (96 kHz not supported in ADC path). |
| DAC Sampling Range | 8–100 kHz; full DVD-Audio playback support confirmed at 96 kHz with −80 dB THD+N (A-weighted). |
| Headphone Output | 35 mW RMS into 16 Ω; DC-coupled via VREF(HP) pin eliminates need for external DC-blocking capacitors. |
| Signal-to-Noise Ratio | 97 dB (ADC, A-weighted), 100 dB (DAC, A-weighted); measured at 48 kHz with 3.0 V supply. |
| Digital Interface | I²S, MSB-justified, LSB-justified (16/18/20/24-bit); dual bus control via L3-bus or I²C-bus with two selectable slave addresses. |
| Power Management | Independent power-down control per block (ADC, DAC, PLL, headphone driver); <2 μA total current in full power-down mode. |
Pinout & Package
TSSOP32 package (SOT487-1), 6.1 mm body width, 0.65 mm lead pitch, thermally enhanced for portable audio applications.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VINL / VINR | Stereo line input | Left/right analog inputs with PGA gain control (0–24 dB); 12 kΩ input impedance enables 2 VRMS support with external series resistor. |
| VINM | Microphone input | Mono input with LNA (+29 dB fixed) and VGA (0–30 dB in 2 dB steps); 5 kΩ input impedance optimized for electret mics. |
| VOUTLHP / VOUTRHP | Headphone outputs | DC-coupled stereo outputs capable of driving 16 Ω loads; short-circuit status readable via L3/I²C registers. |
| VREF(HP) | Headphone reference voltage | Provides bias for DC-coupled headphone connection; eliminates need for external coupling capacitors in portable designs. |
| L3DATA/SDA / L3CLOCK/SCL | Control interface | Dual-mode interface supporting L3-bus (NXP proprietary) or standard I²C-bus (400 kHz) for register configuration and status readback. |
| SEL_L3_IIC | Interface mode select | Hardware pin selecting L3-bus or I²C-bus protocol; enables seamless migration between NXP and multi-vendor controller ecosystems. |
Key Features
| Feature | Design Value |
|---|---|
| DC-coupled headphone driver | Eliminates 100–220 μF DC-blocking capacitors, reducing BOM cost and PCB area in space-constrained portable devices. |
| AGC with configurable attack/decay | Enables hands-free voice recording in variable acoustic environments without manual gain adjustment or clipping risk. |
| Independent left/right volume & tone control | Supports personalized audio tuning (bass boost up to 24 dB, treble up to 6 dB) per channel via software-configurable registers. |
| WSPLL-based asynchronous sample-rate conversion | Allows DAC playback at 96 kHz while ADC records at 48 kHz - critical for simultaneous record/playback in MP3 players. |
| Digital silence detection | Hardware flag indicates silent periods in playback stream; enables automatic power-down of downstream amplifiers to extend battery life. |
Applications
| MiniDisc (MD) Recorder | CD Player with Line-In Recording |
|---|---|
Use Scenario: Portable MD recorder capturing live audio from microphone or line source with real-time compression. IC Role / Device Role / Timing Role: Audio codec performing ADC (mic/line), AGC, digital filtering, and I²S output to MP3 encoder ASIC. Use Value: Integrated LNA+VGA and AGC ensure consistent recording level across varying speaker distances; 24-bit resolution preserves dynamic range for post-processing. |
Use Scenario: CD player with auxiliary line-in recording function, allowing analog source digitization to internal memory. IC Role / Device Role / Timing Role: Dual-role codec: DAC path plays CD audio; ADC path digitizes line input at matched sampling rate (44.1 kHz) with PGA gain calibration. Use Value: Shared I²S interface and synchronized SYSCLK/WSPLL enable zero-jitter sample alignment between playback and record paths. |
| MP3 Player with Mic Input | Portable FM Radio Recorder |
Use Scenario: Battery-powered MP3 player recording voice memos or interviews using built-in electret microphone. IC Role / Device Role / Timing Role: Low-power ADC subsystem (mic → LNA → VGA → decimator → AGC → I²S) operating at 8–16 kHz for speech bandwidth. Use Value: Sub-2 μA power-down current and selective block shutdown (e.g., DAC off during recording) maximize battery runtime. |
Use Scenario: FM radio module adding voice annotation or station logging via analog FM tuner output. IC Role / Device Role / Timing Role: Analog passthrough mode: FM audio routed through PGA → headphone driver/line output without ADC/DAC conversion. Use Value: Hardware bypass path avoids unnecessary quantization noise and latency; volume/tone controls remain active for analog signal conditioning. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar stereo audio codec applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| AK4552VN | 24-bit stereo codec with 96 kHz DAC, but no integrated AGC or LNA; requires external mic bias and gain stages. | Lacks single-chip mic recording capability; suitable only when external analog front-end is already present. | Select AK4552VN if system uses dedicated mic preamp and prioritizes lower THD+N (−90 dB) over integrated recording features. |
| TLV320AIC23BPW | 3.3 V only (no 5 V tolerant I/O); supports 96 kHz ADC/DAC; includes stereo headphone amp but no DC-coupled output option. | Requires external DC-blocking caps for headphones; lacks VREF(HP) pin, increasing component count in portable designs. | Choose TLV320AIC23BPW when I²C-only control suffices and board layout allows space for coupling capacitors. |
Compared with AK4552VN and TLV320AIC23BPW, the UDA1380TT/N2,518 uniquely integrates LNA+VGA, AGC, DC-coupled headphone drive, and dual-bus (L3/I²C) compatibility - making it optimal for cost-sensitive, space-constrained MD/MP3 recorders requiring minimal external components.
Availability
UDA1380TT/N2,518 is available at Aetrix Electronics and suitable for portable audio players, MiniDisc recorders, and MP3 devices requiring stable component supply, long-lifecycle support, and drop-in replacement capability for legacy NXP audio designs.
Supply support for UDA1380TT/N2,518 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.
The UDA1380 belongs to NXP's legacy audio codec product line, engineered specifically for portable digital audio systems requiring integrated analog front-end, low-power operation, and flexible digital interface options.
FAQ
What is the maximum sampling frequency supported by the ADC in UDA1380TT/N2,518?
The ADC in UDA1380TT/N2,518 supports sampling frequencies from 8 kHz to 55 kHz. It does not support 96 kHz - that rate is specified only for the DAC path. This limitation is explicitly stated in the datasheet under "General" features and Quick Reference Data, confirming DVD-Audio recording is not supported.
Does UDA1380TT/N2,518 support DC-coupled headphone output, and how is it implemented?
Yes, UDA1380TT/N2,518 supports DC-coupled headphone output via the VREF(HP) pin, which provides a stable bias voltage for direct connection to 16 Ω headphones. This eliminates the need for external DC-blocking capacitors, reducing component count and PCB area - a key advantage for portable audio designs.
Can UDA1380TT/N2,518 operate with both L3-bus and I²C-bus interfaces simultaneously?
No, UDA1380TT/N2,518 cannot use L3-bus and I²C-bus simultaneously. The SEL_L3_IIC pin selects one interface mode at power-up. When set high, it enables I²C-bus (SDA/SCL); when low, it enables L3-bus (L3DATA/L3CLOCK/L3MODE). Both protocols share the same physical pins but require exclusive hardware configuration.
What is the purpose of the WSPLL in UDA1380TT/N2,518, and when is it required?
The WSPLL in UDA1380TT/N2,518 regenerates internal clocks (128fs, 256fs) from the WSI word-select input, enabling asynchronous operation between ADC and DAC paths. It is required when the DAC must run at a different sampling frequency than the ADC - for example, playing back 96 kHz audio while recording at 48 kHz - without requiring a second crystal oscillator.
How does the AGC function in UDA1380TT/N2,518 interact with the digital volume control?
When AGC is enabled in UDA1380TT/N2,518, it bypasses the digital volume control in the decimator path. The AGC dynamically adjusts gain to maintain constant output level, using configurable attack/decay timing and target level settings accessible via L3-bus or I²C-bus registers - ensuring robust voice recording under varying acoustic conditions.
UDA1380TT/N2,518 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- NXP Semiconductors
- Series:
- -
- Package/Case:
- 32-TSSOP (0.240", 6.10mm Width)
- Packaging:
- Tape & Reel (TR)
- 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/N2,518 FAQ
1.How can I place an order for UDA1380TT/N2,518 through Aetrix?
Please submit a Request for Quotation (RFQ) for UDA1380TT/N2,518 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/N2,518 reliable?
The price and inventory of UDA1380TT/N2,518 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for UDA1380TT/N2,518 is usually 5 days.
3.What payment methods are accepted for UDA1380TT/N2,518?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for UDA1380TT/N2,518 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for UDA1380TT/N2,518?
UDA1380TT/N2,518 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your UDA1380TT/N2,518 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/N2,518?
For technical support, including UDA1380TT/N2,518 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your UDA1380TT/N2,518 requirements.
6.How does Aetrix verify that UDA1380TT/N2,518 is sourced from the original manufacturer or authorized distributors?
All UDA1380TT/N2,518 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/N2,518 meets industry standards.
7.What is the process for return or replacement of UDA1380TT/N2,518?
All UDA1380TT/N2,518 units undergo pre-shipment inspection (PSI). If there is an issue with UDA1380TT/N2,518, 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/N2,518 part is unused and in its original packaging.
Return procedure for UDA1380TT/N2,518:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
UDA1380TT/N2,518 Tags
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