WM8716 Datasheet | Cirrus Logic

DESCRIPTION The WM8716 is a high performance stereo DAC designed for audio applications such as CD, DVD, home theatre systems, set top boxes and digital TV. The WM8716 supports data input word lengths from 16 to 24-bits and sampling rates up to 192k Hz. The WM8716 consists of a serial interface port, digital interpolation filter, multi-bit sigma delta modulator and stereo DAC in a small 28-lead SSOP package. The WM8716 also includes a digitally controllable mute and attenuator function on each channel. The internal digital filter has two selectable roll-off characteristics. A sharp or slow roll-off can be selected dependent on application requirements. Additionally, the internal digital filter can be by-passed and the WM8716 used with an external digital filter. The WM8716 supports two connection schemes for audio DAC control. The SPI-patible serial control port provides access to a wide range of features including on-chip mute, attenuation and phase reversal. A hardware controllable interface is also available. FEATURES - 112d B SNR (‘A’ weighted @ 48k Hz), THD: -97d B @ -1d B FS - Sampling frequency: 8k Hz to 192k Hz - Selectable digital filter roll-off - Optional interface to industry standard external filters - Differential mono mode - Input data word: 16 to 24-bit - Hardware or SPI patible serial port control modes: - Hardware mode: mute, de-emphasis, audio format control - Serial mode: mute, de-emphasis, attenuation (256 steps), phase reversal - patible upgrade to PCM1716 APPLICATIONS - CD, DVD audio - Home theatre systems - Set top boxes - Digital TV BLOCK DIAGRAM MODE ML/I2S MC/DM1 MD/DM0 DIFFHW MUTEB CSBIWO RSTB ZERO MODE8X AGNDR AVDDR (24) (28) (27) (26) (17) (25) (23) (22) (21) (12) (10) (9) CONTROL INTERFACE (11) VMIDR BCKIN (3) LRCIN (1) DIN (2) SERIAL INTERFACE MUTE/ ATTEN MUTE/ ATTEN DIGITAL FILTERS MUX MUX SIGMA DELTA MODULATOR SIGMA DELTA MODULATOR RIGHT DAC LEFT DAC LOW PASS FILTER LOW PASS FILTER (13) VOUTR (16)...