wm9001 Wolfson Microelectronics plc, wm9001 Datasheet - Page 19

• Manufacturer Part Number: wm9001
• Description: 1w Dual-mode Class Ab/d Speaker Driver
• Manufacturer: Wolfson Microelectronics plc

Pre-Production
APPLICATIONS INFORMATION
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TYPICAL STAND-ALONE USAGE
The WM9001 may be used as a differential speaker amplifier, as illustrated in Figure 8, or as a
single-ended speaker amplifier in Figure 9.
Figure 8 Operation of WM9001 as Stand-alone Differential Amplifier
Figure 9 Operation of WM9001 as a Stand-alone Single-ended Amplifier
In the both configurations DC blocking capacitors are required on the input paths. A typical
application might use 1uF capacitors for this purpose, providing a high pass cut-off frequency of less
than 20Hz.
In single-ended mode it is recommend that the unused LIN input is connected to analogue ground.
PP, June 2009, Rev 3.2
WM9001
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