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NXP Semiconductors UDA1344TS/N2,518
- Part No.:
- UDA1344TS/N2,518
- Manufacturer:
- NXP Semiconductors
- Category:
- CODECS
- Package:
- 28-SSOP (0.209", 5.30mm Width)
- Datasheet:
-
UDA1344TS/N2,518.pdf
- Description:
- IC STEREO AUDIO CODEC 28SSOP
- Quantity:
- Payment:
- Shipping:
Inventory:2,883
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Product details
Overview
UDA1344TS/N2,518 from NXP Semiconductors is a low-voltage, low-power stereo audio CODEC integrating sigma-delta ADC and DAC with digital sound processing (DSP) features. It operates from a 3.0 V supply, supports sampling rates from 8 to 55 kHz, delivers 95 dB SNR (ADC) and 100 dB SNR (DAC), and enables record/playback in portable digital audio systems such as MP3 players and voice recorders.
For engineers reviewing the UDA1344TS/N2,518 datasheet, UDA1344TS/N2,518 pinout, UDA1344TS/N2,518 application, or UDA1344TS/N2,518 equivalent, this page provides verified functional identity, SSOP28 package mapping, L3- and static-pin control mode behavior, confirmed I²S/MSB/LSB interface compatibility up to 20 bits, and validated alternative options for stereo audio system design.
Technical Context
The UDA1344TS/N2,518 implements dual 3rd-order sigma-delta modulators for ADC and a cascade interpolation + noise-shaping architecture for DAC, both operating at 128× oversampling. Its analog front-end includes selectable 0 dB/6 dB gain and an optional IIR high-pass DC-cancellation filter controllable via L3 interface.
Digital interface flexibility is achieved through three operational modes: I²S-bus (up to 20-bit), MSB-justified (up to 20-bit), and LSB-justified (16/18/20-bit input with MSB-justified output). Control is supported either by static pins (MC1/MC2 HIGH) or full-featured L3 serial interface (MC1/MC2 LOW), where DSP functions-including de-emphasis (32/44.1/48 kHz), dB-linear volume control, bass boost, treble, and soft mute-are exclusively available.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Supply Voltage | 2.7–3.6 V across all rails (VDDA(ADC), VDDA(DAC), VDDO, VDDD); enables single 3.0 V battery operation in portable designs |
| Sampling Rate Range | 8–55 kHz; covers CD-quality (44.1 kHz), telephony (8 kHz), and high-fidelity playback (up to 55 kHz) |
| ADC SNR | 95 dB (A-weighted, Vi = 0 V); ensures clean recording with minimal quantization noise floor |
| DAC SNR | 100 dB (A-weighted, code = 0); delivers high-fidelity playback with ultra-low noise floor |
| THD+N (DAC) | −90 dB at 0 dBFS; maintains signal integrity under full-scale output conditions |
| Power Consumption | 42 mW in playback mode; reduces thermal load and extends battery life in handheld devices |
| Data Interface Formats | I²S, MSB-justified, LSB-justified (16/18/20-bit); supports interoperability with diverse SoCs and DSPs |
Pinout & Package
UDA1344TS/N2,518 is housed in a plastic shrink small outline package (SSOP28) with 28 leads and 5.3 mm body width (SOT341-1), optimized for compact portable audio PCB layouts.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VSSA(ADC) | ADC analog ground reference | Separate ground return for ADC section to minimize digital noise coupling into sensitive analog input path |
| VINL / VINR | Stereo analog input (left/right) | Differential-capable inputs supporting 1 V (RMS) standard or 2 V (RMS) with external 12 kΩ series resistor |
| DATAI / DATAO | Serial data input/output | Full-duplex I²S/MSB/LSB data transfer; supports up to 20-bit word length in multiple justified formats |
| BCK / WS | Bit clock and word select | Slave-mode timing interface; BCK ≤ 128× WS frequency ensures synchronous frame alignment |
| MP1–MP5 | Multi-purpose configurable pins | Function varies by control mode: overload detection (L3), de-emphasis/mute (static), or L3DATA/L3CLOCK (L3) |
| VOUTL / VOUTR | Stereo line-level analog outputs | DC-coupled outputs capable of driving 5 kΩ loads directly; no external post-filter required |
Key Features
| Feature | Design Value |
|---|---|
| Digital tone control (bass/treble) | Configurable via L3 interface with flat/min/max mode selection; enables real-time audio tailoring without external components |
| dB-linear volume control | 6-bit resolution (0 to −∞ dB in 1 dB steps); low microcontroller overhead due to direct register mapping |
| Programmable DC-cancellation filter | IIR high-pass filter activated via L3; removes DC offset from microphone or line inputs without analog hardware |
| Three-system-clock support | 256fs, 384fs, or 512fs input; allows flexible master clock sourcing from crystal oscillators or PLLs in host systems |
| Overload detector output | MP1 asserts HIGH for ≥512fs cycles when left/right channel exceeds −1.16 dBFS; simplifies automatic gain control (AGC) implementation |
Applications
| Portable Digital Audio Recorder | USB Audio Interface Adapter |
|---|---|
Use Scenario: Battery-powered handheld recorder capturing voice or music with adjustable input gain and real-time level monitoring. IC Role / Device Role / Timing Role: Stereo ADC captures analog signals; DAC enables headphone monitoring; L3-controlled overload detection prevents clipping. Use Value: 95 dB SNR and 1 V/2 V RMS input flexibility ensure clean recording across mic and line sources; 42 mW playback power enables >10-hour battery life on 3.0 V supply. |
Use Scenario: Compact USB-to-analog adapter converting PC audio streams to line-out or headphone signals. IC Role / Device Role / Timing Role: DAC converts USB-audio PCM data; ADC digitizes microphone input; I²S interface synchronizes with USB audio controller. Use Value: 100 dB DAC SNR and −90 dB THD+N deliver studio-grade playback fidelity; MSB-justified 20-bit support matches high-resolution PC audio pipelines. |
| Embedded Voice Assistant Endpoint | Low-Power Wearable Media Player |
Use Scenario: Always-on voice trigger device requiring low-noise far-field mic input and responsive wake-word feedback. IC Role / Device Role / Timing Role: ADC processes dual-mic array signals; digital DC cancellation removes bias drift; L3-controlled bass boost enhances voice band. Use Value: 100 dB channel separation and programmable IIR filter suppress ambient noise; 17 mW power-down mode extends standby time between triggers. |
Use Scenario: Clip-on media player with stereo line-out and integrated storage, operating from coin-cell or Li-ion battery. IC Role / Device Role / Timing Role: CODEC handles decode/playback pipeline; static-pin mode enables simple MCU-less configuration; SSOP28 footprint fits tight form factors. Use Value: 3.0 V single-supply operation eliminates voltage translation; no post-filter requirement reduces BOM count; 69 mW full record+playback power enables efficient thermal management. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar stereo audio CODEC applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| UDA1340M | Pin- and function-compatible predecessor; supports only 1 V (RMS) ADC input (no 2 V option); lacks L3-mode DSP features like bass/treble control | Best suited for cost-sensitive legacy designs where advanced DSP is unnecessary and input signal levels are strictly ≤1 V (RMS) | Select UDA1340M only if existing layout uses it and no 2 V input or L3 DSP is required; UDA1344TS/N2,518 offers broader feature set and higher input headroom |
| AK4537VN | 24-bit stereo CODEC with 105 dB DAC SNR; requires 5 V analog supply; supports SPI instead of L3; no integrated DC cancellation filter | Targeted at higher-fidelity applications (e.g., prosumer audio gear) where SNR >100 dB and 24-bit resolution are mandatory | Choose AK4537VN when system design tolerates 5 V supply and demands superior dynamic range; UDA1344TS/N2,518 remains optimal for 3 V battery-powered portables needing integrated DSP and low power |
Compared with UDA1340M, UDA1344TS/N2,518 adds 2 V (RMS) input capability and full L3 DSP control; compared with AK4537VN, it trades 24-bit resolution and higher SNR for 3 V operation, integrated DC filtering, and lower system-level component count.
Availability
UDA1344TS/N2,518 is available at Aetrix Electronics and suitable for portable digital audio recorders, USB audio adapters, embedded voice assistant endpoints, and low-power wearable media players requiring stable component supply and long-term lifecycle support.
Supply support for UDA1344TS/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, with deep expertise in mixed-signal audio ICs.
The UDA1344TS/N2,518 belongs to NXP's legacy low-power audio CODEC product line, designed specifically for battery-operated portable devices requiring integrated ADC/DAC, digital signal conditioning, and minimal external components.
FAQ
What is the maximum input voltage supported by the UDA1344TS/N2,518 ADC?
The UDA1344TS/N2,518 ADC supports up to 2 V (RMS) input voltage when a 12 kΩ series resistor is used with the 0 dB gain setting. Without the resistor, maximum input is 1 V (RMS) at 6 dB gain or 0.5 V (RMS) at 0 dB gain. This dual-range capability allows flexible interfacing with microphones, line-level sources, and preamplifiers while maintaining signal integrity within the 3.0 V supply constraint.
Does the UDA1344TS/N2,518 support I²S interface mode?
Yes, the UDA1344TS/N2,518 fully supports I²S-bus format with word lengths up to 20 bits in both L3 and static-pin control modes. In static-pin mode, I²S is selected using MP1=LOW and MP5=HIGH; in L3 mode, it is configured via the IF[2:0] register bits (000). The device operates as a slave, requiring external BCK and WS signals synchronized to its SYSCLK input.
How does the L3 interface differ from static-pin control on the UDA1344TS/N2,518?
L3 interface (MC1=LOW, MC2=LOW) enables full digital sound processing-volume, bass/treble, de-emphasis, mute, and DC cancellation-via serial commands. Static-pin mode (MC1=HIGH, MC2=HIGH) restricts control to system clock selection, data format, mute/de-emphasis, and ADC gain/power-down using discrete logic levels on MP1–MP5. Only L3 mode provides access to the complete DSP feature set of the UDA1344TS/N2,518.
What is the power consumption of the UDA1344TS/N2,518 in playback-only mode?
The UDA1344TS/N2,518 consumes 42 mW typical in playback-only mode (DAC active, ADC powered down) at 3.0 V supply and 44.1 kHz sampling rate. This value is derived from the sum of IDDA(DAC) (5.0 mA typ), IDDO (5.0 mA typ), and IDDD (7.5 mA typ), confirming suitability for extended runtime in battery-powered audio devices.
Is the UDA1344TS/N2,518 pin-compatible with any other NXP audio CODECs?
Yes, the UDA1344TS/N2,518 is explicitly stated as pin- and function-compatible with the UDA1340M in L3 mode. Both share identical SSOP28 pinout, electrical characteristics, and register-level control behavior-enabling drop-in replacement where enhanced features like 2 V (RMS) input and expanded DSP are not required. This compatibility simplifies migration paths for legacy designs.
UDA1344TS/N2,518 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- NXP Semiconductors
- Series:
- -
- Package/Case:
- 28-SSOP (0.209", 5.30mm Width)
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Obsolete
- Type:
- Stereo Audio
- Data Interface:
- Serial
- Resolution (Bits):
- 20 b
- Number of ADCs / DACs:
- 2 / 2
- Sigma Delta:
- Yes
- S/N Ratio, ADCs / DACs (db) Typ:
- 95 / 100
- Dynamic Range, ADCs / DACs (db) Typ:
- -
- Voltage - Supply, Analog:
- 2.7V ~ 3.6V
- Voltage - Supply, Digital:
- 2.7V ~ 3.6V
- Operating Temperature:
- -40°C ~ 85°C
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 28-SSOP
UDA1344TS/N2,518 FAQ
1.How can I place an order for UDA1344TS/N2,518 through Aetrix?
Please submit a Request for Quotation (RFQ) for UDA1344TS/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 UDA1344TS/N2,518 reliable?
The price and inventory of UDA1344TS/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 UDA1344TS/N2,518 is usually 5 days.
3.What payment methods are accepted for UDA1344TS/N2,518?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for UDA1344TS/N2,518 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for UDA1344TS/N2,518?
UDA1344TS/N2,518 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your UDA1344TS/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 UDA1344TS/N2,518?
For technical support, including UDA1344TS/N2,518 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your UDA1344TS/N2,518 requirements.
6.How does Aetrix verify that UDA1344TS/N2,518 is sourced from the original manufacturer or authorized distributors?
All UDA1344TS/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 UDA1344TS/N2,518 meets industry standards.
7.What is the process for return or replacement of UDA1344TS/N2,518?
All UDA1344TS/N2,518 units undergo pre-shipment inspection (PSI). If there is an issue with UDA1344TS/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 UDA1344TS/N2,518 part is unused and in its original packaging.
Return procedure for UDA1344TS/N2,518:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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