WM8956集成電路（IC）的ADC/DAC-特殊用途規(guī)格書PDF中文資料

WM8956屬于集成電路（IC）的ADC/DAC-特殊用途。由凌云邏輯制造生產(chǎn)的WM8956ADC/DAC - 特殊用途該產(chǎn)品族中的產(chǎn)品可用于模擬和數(shù)字表示的信息轉(zhuǎn)換，適用于特定用例，或集成了通用數(shù)據(jù)轉(zhuǎn)換器中不常見的其他功能。例如針對超聲或汽車?yán)走_(dá)應(yīng)用集成了低噪聲放大器和可變增益級的器件、注重音頻和視頻的產(chǎn)品、在段碼式顯示器上集成顯示測量值功能的器件、集成輸入輸出電氣隔離的器件等。

DESCRIPTION

The WM8956 is a low power, high quality stereo DAC designed for portable multimedia applications.

Stereo class D speaker drivers provide 1W per channel into 8Ω loads with a 5V supply. Low leakage, excellent PSRR and pop/click suppression mechanisms also allow direct battery connection to the speaker supply. Flexible speaker boost settings allow speaker output power to be maximised while minimising other analogue supply currents.

FEATURES

? DAC SNR 99dB (‘A’ weighted), THD -87dB at 48kHz, 3.3V

? Pop and click suppression

? 3D Enhancement

? Stereo Class D Speaker Driver

- <0.1 THD with 1W per channel into 8? BTL speakers

- 70dB PSRR @217Hz

- 87 efficiency (1W output)

- Flexible internal switching clock

? On-chip Headphone Driver

- 40mW output power into 16? at 3.3V

- Capless mode support

- THD+N -70dB at 20mW, SNR 99dB with 16? load

? Microphone Interface

- Pseudo differential for high noise immunity

- Integrated low noise MICBIAS

? Low Power Consumption

- 16mW headphone playback (2.7V / 1.8V supplies)

? Low Supply Voltages

- Analogue 2.7V to 3.6V (Speaker supply up to 5.5V)

- Digital core and I/O: 1.71V to 3.6V

? On-chip PLL provides flexible clocking scheme

? Sample rates: 8, 11.025, 12, 16, 22.05, 24, 32, 44.1, 48

? 5x5x0.9mm QFN package

APPLICATIONS

? Mobile multimedia

? Portable media / DVD players

? Games consoles