My Inquiry
My Account
NXP Semiconductors UDA1338H/N1,557
- Part No.:
- UDA1338H/N1,557
- Manufacturer:
- NXP Semiconductors
- Category:
- CODECS
- Package:
- 44-QFP
- Datasheet:
-
UDA1338H/N1,557.pdf
- Description:
- IC AUDIO CODER/DECODER 44QFP
- Quantity:
- Payment:
- Shipping:
Inventory:2,549
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
UDA1338H/N1,557 from NXP Semiconductors is a multichannel audio codec IC integrating 4+1 analog-to-digital converters and 6 digital-to-analog converters with bitstream conversion, DSD playback support, and programmable gain amplifiers. It operates at 2.7–3.6 V, supports I²S/MSB/LSB-justified interfaces up to 24-bit word length, and delivers 107 dB SNR (DAC, differential mode) for home theater AV receivers requiring discrete 5.1-channel analog output.
For engineers reviewing the UDA1338H/N1,557 datasheet, UDA1338H/N1,557 pinout, UDA1338H/N1,557 application, or UDA1338H/N1,557 equivalent, this page provides verified functional specifications, QFP44 package mapping, L3/I²C control interface details, and validated alternatives for multichannel audio system design.
Technical Context
The UDA1338H/N1,557 implements a slave-mode-only architecture with independent ADC and DAC clock domains: audio ADC supports 16–100 kHz sampling, voice ADC covers 7–50 kHz, and DAC extends to 200 kHz via 192 kHz mode. Its decimation filters provide >135 dB dynamic range (audio ADC) and >110 dB (voice ADC), while interpolation filters offer selectable sharp or slow roll-off characteristics.
Digital signal processing includes channel-independent logarithmic volume control, de-emphasis at 32/44.1/48/96 kHz, soft/quick mute, and polarity inversion-all configurable via L3-bus or I²C-bus. The device integrates six differential SDACs with DEM-based noise shaping and DC current compensation to minimize data-dependent modulation effects.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| ADC Channels | 4 stereo-capable single-ended audio inputs + 1 mono voice input with fixed-gain LNA |
| DAC Channels | 6 differential outputs (3 stereo pairs); supports DSD-to-PCM conversion at 88.2 kHz |
| Audio Interface | I²S, MSB-justified, LSB-justified (16/20/24-bit), plus dual multichannel formats (20/24-bit) |
| SNR (DAC) | 107–114 dB A-weighted (differential mode); enables high-fidelity 5.1-channel analog output |
| THD+N (DAC) | −100 dB at 0 dBFS (differential mode); ensures low distortion in premium audio playback |
| Supply Range | 2.7–3.6 V for VDDA(AD), VDDA(DA), and VDDD; 5 V tolerant digital inputs simplify level-shifting |
| Control Interface | L3-bus or I²C-bus selectable via I2C_L3 pin; supports register-level volume, mute, de-emphasis |
Pinout & Package
UDA1338H/N1,557 is housed in a plastic quad flat package (QFP44) measuring 10 × 10 × 1.75 mm (SOT307-2), with 44 leads and 1.3 mm lead length. Pin functions are validated per NXP Rev. 04 datasheet.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VINL1, VINR1, VINL2, VINR2 | Audio ADC analog inputs | Four single-ended stereo inputs with 0–24 dB PGA gain (3 dB steps); accept 900 mV RMS signals |
| VVOICE | Voice ADC analog input | Single-ended microphone input with 26 dB LNA; supports 7–50 kHz sampling |
| DATADA1–DATADA3 | DAC serial data inputs | Three 24-bit data lines supporting 6-channel interleaved PCM; enable multichannel I²S routing |
| DATAAD1, DATAAD2 | ADC serial data outputs | Two 24-bit outputs carrying 4-channel ADC data; support time-division multiplexing |
| VOUT1P/VOUT1N–VOUT6P/VOUT6N | DAC analog outputs | Six fully differential SDAC outputs; deliver 2.0 V RMS at 0 dBFS with <−100 dB THD+N |
| I2C_L3, MCCLK, MCDATA, MCMODE | Control interface pins | Select L3-bus (I2C_L3 = LOW) or I²C-bus (I2C_L3 = HIGH); configure volume/mute/de-emphasis |
Key Features
| Feature | Design Value |
|---|---|
| Dual-domain clocking | Independent ADC/DAC sampling (up to 100 kHz / 200 kHz); enables mixed-rate audio+voice systems |
| Configurable interpolation filter | Selectable sharp (−75 dB stopband) or slow (−94 dB stopband) roll-off; optimizes anti-aliasing vs. phase linearity |
| DSD playback mode | Accepts 2.8224 MHz DSD stream; converts to 88.2 kHz PCM and analog output-no external decoder required |
| DC offset cancellation | Integrated high-pass filter in ADC path eliminates DC drift without external components |
| Digital mixer capability | 6-channel DAC mixers combine ADC signals with I²S-bus inputs; enables real-time audio loopback or mixing |
Applications
| Home Theater AV Receiver | Surround Sound Media Player |
|---|---|
Use Scenario: Discrete 5.1-channel analog output for HDMI-equipped AV receivers with Dolby Digital/PCM decoding. IC Role / Device Role / Timing Role: Primary multichannel audio codec handling all ADC capture (microphone/line-in) and DAC playback (front/rear/center/sub) with DSD passthrough support. Use Value: Eliminates need for external DACs or sample-rate converters; 114 dB SNR ensures reference-grade analog output fidelity. |
Use Scenario: High-resolution audio playback from SACD, DVD-Audio, or network streaming sources with native DSD support. IC Role / Device Role / Timing Role: DSD-to-PCM converter and 6-channel DAC engine; synchronizes SYSCLK to 44.1 kHz × 512 for bit-perfect DSD timing. Use Value: Direct DSD processing preserves original master quality; differential outputs reduce EMI in compact media player PCB layouts. |
| Professional Audio Mixer | Smart Speaker with Voice Assistant |
Use Scenario: Analog input conditioning and multichannel monitoring in compact USB/audio interface hybrid mixers. IC Role / Device Role / Timing Role: Simultaneous 4-channel ADC capture (stereo line + stereo mic) and 6-channel DAC monitoring with independent gain control. Use Value: Programmable PGA (0–24 dB) accommodates both line-level (-10 dBV) and mic-level (+4 dBu) sources without external op-amps. |
Use Scenario: Dual-path audio processing in smart speakers: voice command capture (7–50 kHz) and music playback (16–200 kHz). IC Role / Device Role / Timing Role: Voice ADC with 26 dB LNA and dedicated 50 kHz path; audio DAC with 200 kHz capability for high-res streaming. Use Value: Separate power domains (VDDA(AD)/VDDA(DA)) allow independent voice/audio power gating to reduce standby current. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar multichannel audio codec applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| AK4118VN | 4-channel ADC + 8-channel DAC; supports TDM up to 32 channels; no DSD mode; 102 dB DAC SNR | Better suited for TDM-based DSP-centric systems; lacks integrated DSD playback path | Choose AK4118VN when expanding beyond 6 DAC channels or requiring TDM bus compatibility over I²S |
| CS42888-CQZ | 8-channel ADC + 8-channel DAC; 114 dB DAC SNR; supports S/PDIF I/O; no voice ADC path | Targeted at professional audio interfaces with S/PDIF I/O; no dedicated voice-band ADC or LNA | Choose CS42888-CQZ when needing S/PDIF connectivity or higher channel count, but requires external voice front-end |
Compared with UDA1338H/N1,557, AK4118VN offers greater TDM flexibility but omits DSD support, while CS42888-CQZ delivers higher channel density and S/PDIF but lacks the integrated voice ADC path-making UDA1338H/N1,557 uniquely suited for cost-sensitive, DSD-capable 5.1-channel consumer AV designs.
Availability
UDA1338H/N1,557 is available at Aetrix Electronics and suitable for home theater receivers, surround sound media players, professional audio mixers, and smart speakers requiring stable component supply across long production lifecycles.
Supply support for UDA1338H/N1,557 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 company specializing in secure connectivity solutions for automotive, industrial, and consumer electronics markets.
The UDA1338H/N1,557 belongs to NXP's legacy audio codec product line, designed specifically for cost-effective, high-fidelity multichannel audio systems in consumer AV equipment with integrated DSD playback capability.
FAQ
What is the maximum sampling frequency supported by the UDA1338H/N1,557 DAC?
The UDA1338H/N1,557 DAC supports a maximum sampling frequency of 200 kHz, achieved through its 192 kHz sampling mode which halves the oversampling ratio. This mode uses SYSCLK at 128fs, 192fs, 256fs, or 384fs and is explicitly validated in the datasheet for frequencies above 100 kHz. The UDA1338H/N1,557 maintains full 24-bit resolution and >107 dB SNR even at 200 kHz operation.
Does the UDA1338H/N1,557 support DSD playback, and how is it implemented?
Yes, the UDA1338H/N1,557 supports native DSD playback: it accepts 2.8224 MHz DSD streams on the BCKAD/WSAD/DATAAD1 interface and internally converts them to 88.2 kHz multibit PCM before DAC processing. The DSD mode uses SYSCLK at 44.1 kHz × 512 and routes output directly to the six differential DACs-no external DSD-to-PCM converter is needed. This capability is confirmed in Section 8.13 and Figure 10 of the datasheet.
How does the UDA1338H/N1,557 handle power supply separation between ADC and DAC sections?
The UDA1338H/N1,557 implements physically separate analog supply domains: VDDA(AD) powers the audio and voice ADCs, VDDA(DA) powers all six DACs, and VDDD supplies the digital core. Each domain has independent ground pins (VSSA(AD), VSSA(DA), VSSD). This separation minimizes crosstalk and allows independent power-down-verified in Table 1 (Quick Reference Data) and Section 2.1 (Separate power control for ADC and DAC).
Can the UDA1338H/N1,557 operate with different audio interface formats simultaneously?
Yes-the UDA1338H/N1,557 supports simultaneous use of distinct formats: MSB-justified for DAC output and LSB-justified for ADC input, as explicitly stated in the General Description. This dual-format capability is enabled by independent configuration registers for each interface path and is validated in Section 8.11 and Table 5 (Audio ADC and DAC operating clock mode).
What are the key differences between L3-bus and I²C-bus control modes on the UDA1338H/N1,557?
In L3-bus mode (I2C_L3 = LOW), control uses MCCLK/L3CLOCK, MCDATA/L3DATA, and MCMODE/L3MODE pins with LSB-first 8-bit addressing. In I²C-bus mode (I2C_L3 = HIGH), MCCLK becomes SCL and MCDATA becomes SDA, while MCMODE serves as QMUTE for hardware mute control. Both modes provide identical register access and feature control-differences are purely physical layer and protocol-level, as defined in Tables 11 and 12 of the datasheet.
UDA1338H/N1,557 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- NXP Semiconductors
- Series:
- -
- Package/Case:
- 44-QFP
- Packaging:
- Tray
- Product Status:
- Obsolete
- Type:
- Stereo Audio
- Data Interface:
- Serial
- Resolution (Bits):
- 24 b
- Number of ADCs / DACs:
- 5 / 6
- Sigma Delta:
- No
- S/N Ratio, ADCs / DACs (db) Typ:
- 100 / 114
- Dynamic Range, ADCs / DACs (db) Typ:
- -
- Voltage - Supply, Analog:
- 2.7V ~ 3.6V
- Voltage - Supply, Digital:
- 2.7V ~ 3.6V
- Operating Temperature:
- -20°C ~ 85°C
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 44-PQFP (10x10)
UDA1338H/N1,557 FAQ
1.How can I place an order for UDA1338H/N1,557 through Aetrix?
Please submit a Request for Quotation (RFQ) for UDA1338H/N1,557 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 UDA1338H/N1,557 reliable?
The price and inventory of UDA1338H/N1,557 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for UDA1338H/N1,557 is usually 5 days.
3.What payment methods are accepted for UDA1338H/N1,557?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for UDA1338H/N1,557 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for UDA1338H/N1,557?
UDA1338H/N1,557 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your UDA1338H/N1,557 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 UDA1338H/N1,557?
For technical support, including UDA1338H/N1,557 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your UDA1338H/N1,557 requirements.
6.How does Aetrix verify that UDA1338H/N1,557 is sourced from the original manufacturer or authorized distributors?
All UDA1338H/N1,557 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 UDA1338H/N1,557 meets industry standards.
7.What is the process for return or replacement of UDA1338H/N1,557?
All UDA1338H/N1,557 units undergo pre-shipment inspection (PSI). If there is an issue with UDA1338H/N1,557, 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 UDA1338H/N1,557 part is unused and in its original packaging.
Return procedure for UDA1338H/N1,557:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
UDA1338H/N1,557 Tags
-
NAU88C22YG
Nuvoton Technology Corporation
-
TLV320AIC3100IRHBR
Texas Instruments
-
DA7212-01UM2
Renesas
-
NAU8810YG
Nuvoton Technology Corporation
-
DA7218-00U32
Renesas
-
CMX655DQ6-TR1K
CML Micro
-
SGTL5000XNLA3
NXP Semiconductors
-
TLV320AIC3104IRHBR
Texas Instruments
-
MAX9867EWV+T
Analog Devices Inc./Maxim Integrated
-
MAX9860ETG+T
Analog Devices Inc./Maxim Integrated
-
TLV320AIC3106IRGZR
Texas Instruments
-
SGTL5000XNLA3R2
NXP Semiconductors
Tech Hub
A practical engineering guide to 3.3V and 5V logic compatibility, input thresholds, resistor dividers, translator ICs, MOSFET level shifting, I2C pull-ups, timing limits and power-sequencing risks.
The 74HC595 uses push-pull logic outputs, while the TPIC6B595 uses 50 V open-drain DMOS sinks for higher-power loads. This guide compares timing, current limits, 3.3 V interfacing, load wiring, thermal…
The 74HC595 converts serial data into eight stable parallel outputs. This guide covers pin functions, shift and storage timing, OE and MR behavior, drive-current limits, cascading, voltage compatibilit…
A technical comparison of level-sensitive latches and edge-triggered flip-flops, covering timing windows, setup and hold limits, master–slave operation, time borrowing, race-through, HDL inference and…
A D latch stores one bit while Enable controls when data can pass. This reference covers gate-level operation, truth tables, transparency, setup and hold timing, LE versus OE, common ICs and practical …
An SR latch stores one bit through cross-coupled feedback. This engineering reference covers NOR and NAND implementations, truth tables, forbidden-state recovery, gated operation, switch debouncing, fa…
Latch circuits retain one bit through feedback. This technical reference covers SR and D latches, truth tables, transparency, timing limits, latch-versus-flip-flop behavior, applications and common log…
An engineering guide to LED driver operation, constant-current and constant-voltage outputs, linear and switching topologies, dimming, IC selection, calculations, replacement compatibility, and fault c…
Operational amplifier guide covering op amp basics, feedback, ideal vs real op amps, common configurations, buffer circuits, offset, bias current, gain-bandwidth, slew rate, rail-to-rail limits and sel…
Jumper cables guide covering safe connection order, red and black clamp placement, final ground connection, cable gauge, length, clamp quality, copper vs CCA cables, jump starter comparison and battery…
