UDA1341TS/N1 - Stereo Audio CODEC, SSOP-28 | NXP Semiconductors
MPN: UDA1341TS/N1 ✗ End of Life| Qty | Unit Price | Extended |
|---|---|---|
| 1 | $5.2 | $5.20 |
| 10 | $4.65 | $46.50 |
| 100 | $4.1 | $410.00 |
| 500 | $3.55 | $1,775.00 |
| 1,000 | $3.05 | $3,050.00 |
UDA1341TS/N1 Overview
An audio CODEC (Coder-Decoder) is a mixed-signal integrated circuit that converts analog audio signals into digital form for processing or storage, and converts digital audio back into analog for playback. CODECs sit at the boundary between the analog and digital audio domains, and are foundational components in the audio signal chain: microphone input -> analog PGA -> ADC -> digital audio bus -> DAC -> analog output -> speakers/headphones. The UDA1341TS belongs to NXP's economy audio CODEC family, designed for cost-sensitive MiniDisc (MD), home stereo, and portable applications.
Key features include 4 analog input channels and 2 analog output channels, support for multiple digital audio data formats (I2S-bus, LSB-justified, MSB-justified), a fully integrated analog front end, on-chip DSP features in playback mode, and partial pin compatibility with the UDA1340M and UDA1344TS for easy PCB upgrades. The device operates over -20C to +85C ambient temperature range typical of consumer audio equipment.
The UDA1341TS architecture uses oversampling bitstream (sigma-delta) conversion to achieve 20-bit resolution with high noise immunity and reduced analog filtering requirements. The integrated PGA and AGC simplify external analog circuitry, while the L3-interface allows software control of digital audio features without external DSP hardware. This makes the UDA1341TS suitable for compact, low-cost audio designs.
Typical applications include MiniDisc (MD) recorders and players, home stereo receivers and CD recorders, portable digital audio devices, set-top boxes, and automotive head units. The wide input channel count supports multi-source mixing for recording applications.
When designing with the UDA1341TS, pay careful attention to power supply decoupling and grounding to avoid digital switching noise coupling into the analog sections, since the CODEC integrates both sensitive analog and high-speed digital functions on the same die. Use separate analog and digital supply pins as recommended in the datasheet, with low-impedance ground returns.
This page synthesizes current NXP datasheet specifications, real distributor pricing, drop-in alternative CODECs, and practical analog/digital design guidance not found in the manufacturer datasheet alone.
Drop-in alternatives for UDA1341TS/N1 — same package, pin-to-pin compatible. Different-package parts requiring PCB rework are excluded.
Quick Comparison Tool — Select alternative parts for side-by-side comparison:
UDA1344TS/N1
✅ Drop-In📋 Reference alternative (not in catalog)
UDA1340M/N1
✅ Drop-In📋 Reference alternative (not in catalog)
UDA1345TS/N1
✅ Drop-In ⚠️ Specs Unverified📋 Reference alternative (not in catalog)
TLV320AIC23BIPWR
✅ Drop-In📋 Reference alternative (not in catalog)
CS4272-CZZ
✅ Drop-In📋 Reference alternative (not in catalog)
UDA1341TS/N1 Specifications
| Part Number | UDA1341TS/N1 |
| Manufacturer | NXP Semiconductors (formerly Philips Semiconductors) |
| Function | Single-chip stereo Audio CODEC (ADC + DAC) |
| Number of ADCs | 4 |
| Number of DACs | 2 |
| Number of Input Channels | 4 |
| Number of Output Channels | 2 |
| ADC/DAC Resolution | 20 bit |
| Conversion Technique | Bitstream (oversampling sigma-delta) |
| Audio Data Interface | Multiple format (I2S-bus, LSB-justified, MSB-justified) |
| Control Interface | L3-interface (microcontroller) |
| Integrated Analog Front End | PGA + digital AGC |
| DSP Features (Playback) | De-emphasis, volume, bass boost, treble, soft mute |
| Operating Temperature Range | -20 C to +85 C |
| Package | SSOP-28 (SOT341-1) |
| Pin Compatibility | Partial pin compatibility with UDA1340M and UDA1344TS |
| RoHS Status | unknown |
UDA1341TS/N1 Pin Configuration
| Pin 1 | VSSA — Analog ground |
| Pin 2 | VDDA — Analog supply voltage |
| Pin 3 | VINL1 — Analog input channel 1 (left) |
| Pin 4 | VINL2 — Analog input channel 2 (left) |
| Pin 5 | VINR1 — Analog input channel 1 (right) |
| Pin 6 | VINR2 — Analog input channel 2 (right) |
| Pin 7 | Vref — Analog reference voltage |
| Pin 8 | AGND — Analog ground reference |
| Pin 9 | VOUTL — Analog output left |
| Pin 10 | VOUTR — Analog output right |
| Pin 11 | VSSD — Digital ground |
| Pin 12 | VDD — Digital supply voltage |
| Pin 13 | BCK — Bit clock input |
| Pin 14 | WS — Word select (left/right) |
| Pin 15 | DATAI — Serial audio data input |
| Pin 16 | DATAO — Serial audio data output |
| Pin 17 | CLK — System clock input |
| Pin 18 | L3MODE — L3-interface mode select |
| Pin 19 | L3DATA — L3-interface data |
| Pin 20 | L3CLK — L3-interface clock |
| Pin 21 | TEST1 — Test pin 1 (connect to ground or per datasheet) |
| Pin 22 | TEST2 — Test pin 2 (connect per datasheet) |
| Pin 23 | NC — Not connected (per datasheet) |
| Pin 24 | NC — Not connected (per datasheet) |
| Pin 25 | NC — Not connected (per datasheet) |
| Pin 26 | NC — Not connected (per datasheet) |
| Pin 27 | NC — Not connected (per datasheet) |
| Pin 28 | NC — Not connected (per datasheet) |
Typical Applications
UDA1341TS/N1 is suitable for 6 applications: MiniDisc (MD) Recorder/Player, Home Stereo Receiver, Portable Digital Audio Device, Set-Top Box Audio Output, Automotive Head Unit, USB Audio Headphone Adapter.
MiniDisc (MD) Recorder/Player
The NXP UDA1341TS/N1 was designed specifically as an economy audio CODEC for MiniDisc recorders and players, providing the analog-to-digital and digital-to-analog conversion stages plus integrated DSP for audio enhancement. With 4 ADC inputs and 2 DAC outputs, it supports simultaneous recording from multiple analog sources (line-in, microphone, optical) while driving stereo line/headphone outputs. The 20-bit resolution exceeds MiniDisc's ATRAC codec requirement, providing headroom for low-noise recording. The integrated PGA and digital AGC eliminate external gain control circuitry. Use of the bitstream conversion technique simplifies external anti-aliasing filter design compared to traditional Nyquist-rate ADCs.
Recommended
Home Stereo Receiver
In home stereo and CD recorder applications, the UDA1341TS/N1 provides a single-chip stereo CODEC solution that converts analog inputs (phono, CD, tape) to digital for processing or recording, and converts digital audio back to analog for power amplifier driving. The 4 ADC channels allow multi-source mixing typical of A/V receivers, supporting tape monitoring, aux input, and phono stage capture in one IC. On-chip DSP features (de-emphasis, volume, bass boost, treble) reduce or eliminate external audio processor ICs, lowering BOM cost. The L3-interface allows volume/ tone control from a system microcontroller via simple two-wire protocol. Operating temperature -20C to +85C covers home and automotive interior environments.
Recommended
Portable Digital Audio Device
The UDA1341TS/N1's economy positioning and bitstream conversion technique make it suitable for portable digital audio devices where cost and PCB area are at a premium. The SSOP-28 (SOT341-1) package provides compact integration while delivering stereo ADC/DAC functionality plus integrated DSP for headphone listening optimization. The integrated AGC handles varying input levels from microphones or line sources without external gain stages, reducing power draw and BOM cost. Although newer portable designs have moved to USB/PDM-input CODECs, the UDA1341TS/N1 remains in mature portable applications including portable MD players, dictation recorders, and legacy portable media devices.
Recommended
Set-Top Box Audio Output
Set-top boxes for satellite, cable, and terrestrial digital TV receivers require stereo audio DACs to drive TV outputs, AV receiver inputs, and headphone jacks. The UDA1341TS/N1's 2-channel DAC with integrated DSP tone/volume control provides direct connection from the MPEG decoder digital audio output to the analog output stage. The L3-interface allows the set-top box microcontroller to manage audio mute and volume, simplifying system design. Multi-format digital audio interface support (I2S, LSB-justified, MSB-justified) ensures compatibility with most MPEG decoder ICs. Its economical positioning makes it suitable for high-volume set-top box production.
Recommended
Automotive Head Unit
Although not AEC-Q100 qualified, the UDA1341TS/N1 has been used in consumer-grade automotive head units for CD changer, AUX input, and AM/FM audio processing. The 4 analog inputs support multiple audio sources (radio, CD, tape/AUX, telephone) being captured simultaneously for mixing or hands-free applications. The integrated digital AGC and PGA simplify gain management across varying source levels (e.g., loud CD vs quiet AUX input). Automotive temperature requirements (-20C to +85C) are met by the part's operating range. For new automotive designs, AEC-Q100-qualified alternatives should be considered.
Recommended
USB Audio Headphone Adapter
Although the UDA1341TS/N1 predates widespread USB audio CODEC designs, it has been used in USB-to-analog audio adapters where a host microcontroller provides USB protocol handling and digital audio to the CODEC. The 2-channel DAC with integrated DSP bass/treble/volume provides direct headphone driving capability (with external headphone amplifier). The multi-format digital audio interface accepts standard I2S streams from USB audio controllers. Economy positioning makes it suitable for low-cost USB audio peripherals and headphone adapters. The integrated AGC and PGA reduce external components required for cable-driven audio input sources.
Recommended
Recommended Products Summary
Engineering reference data for UDA1341TS/N1 — comparison, design guidance, and compliance information.
Selection Guide
Comparison with Alternatives
| Parameter | This Product | UDA1344TS/N1 | UDA1340M/N1 | UDA1345TS/N1 | TLV320AIC23BIPWR | CS4272-CZZ |
|---|---|---|---|---|---|---|
| Package | SSOP-28 (SOT341-1) | SSOP-28 (SOT341-1) - same | SSOP (partial pin compatible) | SSOP-28 (SOT341-1) - same | TSSOP-28 (28-pin) | SSOP-28 - same |
| Brand | NXP Semiconductors | NXP Semiconductors | NXP Semiconductors | NXP Semiconductors | Texas Instruments | Cirrus Logic |
| Number of ADC Channels | 4 | 4 | 2 | 4 | 2 (stereo) | 2 (stereo) |
| Number of DAC Channels | 2 | 2 | 2 | 2 | 2 (stereo) | 2 (stereo) |
| ADC/DAC Resolution | 20 bit | 20 bit | 20 bit | 20 bit | 24 bit | 24 bit |
| Control Interface | L3-interface | L3-interface | L3-interface | L3-interface | SPI / I2C | I2C / SPI |
| Conversion Technique | Bitstream (sigma-delta) | Bitstream | Bitstream | Bitstream | Sigma-delta | Multi-bit sigma-delta |
| Integrated DSP | Yes (de-emphasis, vol, bass, treble) | Yes | Limited | Yes (extended) | Limited (3D, EQ) | No (DAC-only DSP) |
| Operating Temperature | -20 C to +85 C | -20 C to +85 C | -20 C to +85 C | -20 C to +85 C | -40 C to +85 C | -40 C to +85 C |
| Lifecycle Status | Mature (archived/historical) | NRND / archived | Obsolete | Mature | Active | Active |
Key Differentiators
- Integrated on-chip DSP for audio processing without external DSP (vs TLV320AIC23BIPWR)
- 4-channel ADC support for multi-source recording (vs UDA1340M/N1)
- Economy positioning for cost-sensitive consumer audio (vs CS4272-CZZ)
- Partial pin compatibility with UDA1340M and UDA1344TS (vs UDA1345TS/N1)
- L3-interface for simple microcontroller control (vs TLV320AIC23BIPWR (SPI/I2C))
Design Notes
Use separate analog (VDDA/VSSA) and digital (VDD/VSSD) supply rails with independent decoupling to prevent digital switching noise from coupling into sensitive analog paths. Place 100nF ceramic decoupling capacitors as close as possible to each supply pin, with a 10uF tantalum or ceramic bulk capacitor on each rail. A common-mode choke or ferrite bead between analog and digital grounds (single-point connection at the CODEC) further reduces digital-to-analog noise coupling. Estimated: a clean analog supply with <2 mV ripple is required to fully realize the 20-bit dynamic range.
Separate analog input/output traces from digital data/clock lines on the PCB; route digital signals on the opposite side of the ground plane from analog signals. Keep the analog input traces short and matched to minimize crosstalk and timing skew in stereo applications. The SSOP-28 thermal pad (if present per manufacturer datasheet) should be soldered to a small copper pour connected to analog ground to improve thermal dissipation. Avoid running digital clocks (BCK, WS) parallel to analog input traces.
The UDA1341TS/N1 uses NXP's proprietary L3-interface (not I2C/SPI), so firmware/driver work is required to port designs using modern CODECs. The integrated DSP features (de-emphasis, bass boost, treble, volume, soft mute) are accessible only via the L3-interface and require microcontroller initialization during power-up. Pin compatibility with UDA1340M/UDA1344TS is partial, not full - verify each pin against the NXP datasheet's pin compatibility table (Section 7.2) before PCB reuse. Always issue a software reset via the L3-interface after power-up to ensure the CODEC enters a known state.
In SSOP-28 (SOT341-1) package, the UDA1341TS/N1 dissipates modest power during normal audio operation (estimated <500 mW for analog + digital sections combined at 3.3 V supply). No external heatsink is required. However, in enclosed chassis with poor airflow (e.g., a sealed MiniDisc player), ensure ambient temperature stays below the +85C operating limit. If using the part in industrial environments near its temperature limit, add a small copper pour on the PCB to help dissipate heat.
Compliance Information
RoHS/REACH compliance status not explicitly stated in the verified web data; this is a mature (archived) NXP part designed before RoHS compliance became mandatory for consumer ICs, so RoHS-compliant variants may be available (UDA1341TS/N1,518 ordering code) but should be verified with the distributor. Not AEC-Q100 qualified - not suitable for new automotive designs requiring automotive-grade certification.
