NXP Semiconductors SGTL5000XNAA3

Overview

SGTL5000XNAA3 from NXP Semiconductors is a low-power stereo audio codec with integrated capless headphone amplifier, supporting stereo LINEIN/MIC_IN analog inputs, stereo LINEOUT/HP_OUT analog outputs, and I2S digital I/O. It delivers 100 dB SNR (DAC→headphone, 16 Ω), -80 dB THD+N, and programmable MIC gain (0/20/30/40 dB) for portable media players and smart handheld devices.

For engineers reviewing the SGTL5000XNAA3 datasheet, SGTL5000XNAA3 pinout, SGTL5000XNAA3 application, or SGTL5000XNAA3 equivalent, key selection criteria include its 32-pin QFN package, I2C/SPI control interface, PLL-based clock synthesis (8–27 MHz SYS_MCLK), capless 16 Ω headphone drive (up to 58 mW at 3.3 V), and codec-bypass mode for ultra-low-power analog pass-through.

Technical Context

The SGTL5000XNAA3 implements a fully integrated analog signal chain with independent ADC and DAC paths, configurable audio routing via a source-select switch, and on-chip digital audio processing including NXP Surround, Bass Enhancement, tone control, and parametric equalization. Its internal PLL synthesizes precise audio clocks (8–96 kHz sampling rates) from asynchronous input frequencies as low as 8.0 MHz.

It supports dual power domains: VDDA (1.62–3.6 V) powers analog circuitry (ADC/DAC/HP), while VDDIO (1.62–3.6 V) sets LINEOUT level and digital I/O voltage; VDDD (1.1–2.0 V) is required externally for new designs to minimize digital core power. The device operates across -40 °C to +85 °C and features zero-cross detect (ZCD) on both ADC and HP paths to suppress pop noise during volume transitions.

Key Specifications

Pinout & Package

SGTL5000XNAA3 is housed in a 32-pin punch QFN package (5 mm × 5 mm, 0.5 mm pitch) with exposed thermal pad. Pin assignments are validated per NXP Document Number SGTL5000 Rev. 7 (Jan 2022), Figure 3 and Table 1.

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar stereo audio codec applications.

Compared with AK4458VN and TLV320AIC3106IRHBT, SGTL5000XNAA3 uniquely balances integrated analog I/O, capless headphone drive, and on-chip audio processing - making it optimal for cost-sensitive, feature-rich portable audio where both recording and playback are required in one chip.

Availability

SGTL5000XNAA3 is available at Aetrix Electronics and suitable for portable media players, smart navigation devices, medical vital sign monitors, and fitness tracker audio feedback requiring stable component supply through end-of-life transition planning.

Supply support for SGTL5000XNAA3 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 headquartered in Eindhoven, Netherlands, specializing in secure connectivity solutions for automotive, industrial, and consumer applications.

The SGTL5000XNAA3 belongs to NXP's low-power audio codec product line, designed specifically for portable and battery-operated devices requiring high-fidelity audio capture and playback in minimal footprint with minimal external components.

FAQ

What is the package type and pin count of the SGTL5000XNAA3?

The SGTL5000XNAA3 uses a 32-pin punch QFN package measuring 5 mm × 5 mm with 0.5 mm pitch and an exposed thermal pad. This differs from the 20-pin sawn QFN variant (SGTL5000XNLA3) and the 32-pin sawn QFN variant (SGTL5000XNBA3), and is confirmed in NXP's SGTL5000 Rev. 7 datasheet Figure 3 and ordering information table. The SGTL5000XNAA3 pinout includes dedicated I2C/SPI control pins (CTRL_MODE, CTRL_ADR0_CS), CPFILT for charge pump filtering, and separate VDDA/VDDIO/VDDD supplies.

Does the SGTL5000XNAA3 support both I2C and SPI control interfaces?

Yes, the SGTL5000XNAA3 supports both I2C and SPI control modes, selected via the CTRL_MODE pin: logic low configures I2C (CTRL_CLK = SCL, CTRL_DATA = SDA), logic high configures SPI (CTRL_CLK = SCK, CTRL_DATA = MOSI, CTRL_ADR0_CS = CS). I2C operates up to 400 kHz; SPI timing parameters are defined in the datasheet's Dynamic Electrical Characteristics section. The SGTL5000XNAA3 does not support SPI in the 20-pin QFN variant, but full dual-mode support is confirmed for this 32-pin punch QFN version.

What is the maximum headphone output power of the SGTL5000XNAA3 and under what conditions?

The SGTL5000XNAA3 delivers up to 58 mW per channel into a 16 Ω load at 3.3 V supply (VDDA = 3.3 V), as specified in Table 4 and Table 6 of the NXP SGTL5000 Rev. 7 datasheet. At 1.8 V VDDA, output power drops to 17 mW. This performance assumes 1.02 kHz sine wave, 0 dBFS input, and proper layout with HP_VGND decoupling. The SGTL5000XNAA3 achieves this with capless architecture, eliminating DC-blocking capacitors.

Can the SGTL5000XNAA3 operate without an external crystal or oscillator?

Yes, the SGTL5000XNAA3 can operate without an external crystal thanks to its integrated PLL, which accepts an 8–27 MHz SYS_MCLK input (e.g., 12 MHz USB clock) and synthesizes precise audio clocks for sampling rates from 8 kHz to 96 kHz. This capability is explicitly documented in the Functional Description section and PLL Programming Flowchart (Figure 9) of the SGTL5000 Rev. 7 datasheet. The SGTL5000XNAA3 does not require a crystal for basic operation, reducing BOM cost and board space.

Is the SGTL5000XNAA3 still in active production or subject to discontinuation?

The SGTL5000XNAA3/R2 variant is scheduled for End-of-Life (EOL) by end of Q1 2022, as stated in the NXP SGTL5000 Rev. 7 datasheet footnote on page 1. However, the base part number SGTL5000XNAA3 remains orderable through authorized distributors and Aetrix Electronics with managed inventory and last-time-buy support. Lifecycle status should be verified per NXP's official PCN notifications, but current availability enables design-in for legacy and transitional programs.