WM8961 参数 Datasheet PDF下载

型号：	WM8961
PDF下载：	下载PDF文件查看货源
内容描述：	超低功耗立体声编解码器与1W立体声D类扬声器驱动器和接地参考耳机驱动器 [Ultra-Low Power Stereo CODEC with 1W Stereo Class D Speaker Drivers and Ground Referenced Headphone Drivers]
分类和应用：	解码器驱动器编解码器
文件页数/大小：	116 页 / 1413 K
品牌：	WOLFSON [ WOLFSON MICROELECTRONICS PLC ]

WM8961

Pre-Production

SPEAKER OUTPUT PGA VOLUME CONTROL

The signal volume on SPK_L and SPK_R can be independently adjusted under software control by

writing to SPKLVOL and SPKRVOL, as shown in Figure 21.

Figure 21 Speaker Volume PGA

A zero cross detect on the analogue output may also be enabled when changing the gain setting to

minimize audible clicks and zipper noise as the gain updates. If zero cross is enabled a timeout is also

available to update the gain if a zero cross does not occur. This function may be enabled by setting

TOEN in register R23 (17h). The timeout period is set by CLK_TO_DIV[1:0]. The volume control

PGAs are enabled using SPKL_PGA and SPKR_PGA.

PP, August 2009, Rev 3.1

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