NAU8810YG

Part: NAU8810 (NAU8810YG) — Nuvoton

Type: Mono Audio CODEC with Speaker Driver

Description: Low-power 24-bit mono audio CODEC with 2.5–3.6 V analog supply, 93 dB SNR DAC, 91 dB SNR ADC, 1 W BTL speaker driver, 5-band EQ, ALC and fractional-N PLL.

Operating Conditions:

• Analog supply (VDDA): 2.5–3.6 V
• Digital supply (VDDD): 1.71–3.6 V
• Operating temperature: -40 to +85 °C
• Sample rates: 8–48 kHz; nominal operating voltage 3.3 V

Absolute Maximum Ratings:

• Max supply voltage (VDDD, VDDA): +3.63 V
• Max VDDSPK: +3.63 V (MOUTBST=0, SPKBST=0); +5.50 V (MOUTBST=1, SPKBST=1)
• Digital input voltage range: VSSD - 0.3 V to VDDD + 0.3 V
• Analog input voltage range: VSSA - 0.3 V to VDDA + 0.3 V
• Storage temperature: -65 to +150 °C

Key Specs:

• Audio DAC: 93 dB SNR, -84 dB THD
• Audio ADC: 91 dB SNR, -79 dB THD
• Mic PGA gain: -12 dB to +35.25 dB
• BTL speaker driver: 1 W (8 Ω, 5 V)
• Headset driver: 40 mW (16 Ω, 3.3 V)
• Sample rates: 8–48 kHz
• Control interface: 2-wire (I2C style)
• Audio interface: I2S, PCM, with PCM time slot assignment

Features:

• 24-bit signal processing linear audio CODEC
• Integrated programmable microphone amplifier and low-noise mic bias
• Integrated BTL speaker driver and headset driver
• On-chip full fractional-N PLL
• 5-band graphic equalizer
• Programmable ALC with noise gate
• ADC notch filter and programmable high-pass filter
• Digital ADC/DAC passthrough
• Mono data output on both channels
• AEC-Q100 grade 3 and TS16949 qualified option

Applications:

• Wired/wireless telephony
• Security systems
• Mobile telephone hands-free kits
• Residential and consumer intercoms

Package:

• 20-pin QFN

• 5-band Graphic Equalizer
• Programmable ALC
• ADC Notch Filter
• Programmable High Pass Filter
• Digital ADC/DAC Passthrough
• Mono data output on both channels
• Automotive AEC-Q100 grade 3 & TS16949 qualification, tested to a higher reliability standard
• Temperature: -40 C to +85 C

• All types of wired/wireless telephony
• Security Systems
• Mobile Telephone Hands-free Kits
• Residential & Consumer Intercoms

Figure 1: 20-Pin QFN Package

VDDD = 1.8V, VDDA = VDDSPK = 3.3V (VDDSPK = 1.5*VDDA when Boost), TA = +25 o C, 1kHz signal, fs = 48kHz, 24-bit audio data unless otherwise stated.

VDDD = 1.8V, VDDA = VDDSPK = 3.3V (VDDSPK = 1.5*VDDA when Boost), TA = +25 o C, 1kHz signal, fs = 48kHz, 24-bit audio data unless otherwise stated.

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VDDD = 1.8V, VDDA = VDDSPK = 3.3V (VDDSPK = 1.5*VDDA when Boost), TA = +25 o C, 1kHz signal, fs = 48kHz, 24-bit audio data unless otherwise stated.

CAUTION: Do not operate at or near the maximum ratings listed for extended period. Exposure to such conditions may adversely influence product reliability and result in failures not covered by warranty. These devices are sensitive to electrostatic discharge; follow proper IC Handling Procedures.

Figure 48: Application Diagram For 20-Pin QFN

• Note 1: All non-polar capacitors are assumed to be low ESR type parts, such as with MLC construction or similar. If capacitors are not low ESR, additional 0.1μF and/or 0.01μF capacitors may be necessary in parallel with the bulk 4.7μF capacitors on the supply rails.
• Note 2: Load resistors to ground on outputs may be helpful in some applications to insure a DC path for the output capacitors to charge/discharge to the desired levels. If the output load is always present and the output load provides a suitable DC path to ground, then the additional load resistors may not be necessary. If needed, such load resistors are typically a high value, but a value dependent upon the application requirements.
• Note 3: To minimize pops and clicks, large polarized output capacitors should be a low leakage type.
• Note 4: Depending on the microphone device and PGA gain settings, common mode rejection can be improved by choosing the resistors on each node of the microphone such that the impedance presented to any noise on either microphone wire is equal.