wm8982gefl-v Wolfson Microelectronics plc, wm8982gefl-v Datasheet - Page 51

• Manufacturer Part Number: wm8982gefl-v
• Description: Mono Codec With Speaker Driver And Video Buffer
• Manufacturer: Wolfson Microelectronics plc

Pre-Production
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SPEAKER OUTPUTS (SPKOUTP AND SPKOUTN)
The outputs SPKOUTP and SPKOUTN are designed to drive an 8Ω BTL speaker but can optionally
drive two headphone loads of 16Ω/32Ω or a line output. Each output has an individual volume
control PGA, an output boost/level shift bit, a mute and an enable as shown in Figure 27.
SPKOUTP and SPKOUTN output the Output Mixer 1 and Output Mixer 2 mixer outputs respectively.
The SPKOUTN signal path also has an optional invert. The amplifier used for this invert can be used
to mix in the AUX2 signal with an adjustable gain range of -15dB -> +6dB. This allows a ‘beep’ signal
to be applied only to the speaker output without affecting the line output.
Figure 27 Speaker Outputs SPKOUTP and SPKOUTN
PP, Rev 3.2, September 2008
WM8982
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