Bose sounddock 10 top
This is the 21 pages manual for bose sounddock 10 top.
Read or download the pdf for free. If you want to contribute, please upload pdfs to audioservicemanuals.wetransfer.com.
Extracted text from bose sounddock 10 top (Ocr-read)
Page 1
SoundDock 10 Theory of Operation 2 Amplifier Characteristics „ Supply voltage: +24V „ Full scale output (after filter): „ 18V peak into 1.5 ohms for bass „ 14V peak into 3.5 ohms for twiddlers „ Full scale input from DSP: „ 0.95V for bass „ 1.5V for twiddler channels „ PWM switching frequency: 288kHz „ Synchronized to PA_SYNCH_CLK provided by DSP „ PWM modulation mode: BD Bass Amplifier Configuration „ Slave mode for externally supplied clock „ Internal PLL disabled „ BD modulation „ I2C bus disabled „ Paralleled outputs „ Load detection and DC offset protection disabled Twiddler Amplifier Configuration „ Slave mode for externally supplied clock „ Gain set to 20dB (GAIN0 and GAIN1 pins grounded) „ Uses internal PLL (cannot be disabled) Output Filters „ 2nd order low-pass L-C „ Inductor is planar construction – inductor windings formed by PCB traces, ferrite core is glued to PC board „ Provide large common mode inductance (20 to 50uH) needed for attenuation of large common mode voltage swing present in BD modulated output stage
Page 2
SoundDock 10 Theory of Operation 3 Output Filters Twiddler channels: - Nominal diff mode inductance: 11.5uH - Capacitance: 0.5uF - Resonant frequency: ~66kHz - DM attenuation at 288kHz: >20dB - CM attenuation at 288kHz: >40dB - C332, C334, and R317 provide damping for common-mode transients on start-up Bass channel: - Nominal diff mode inductance: 7.5uH - Capacitance: 2uF - Resonant frequency: ~40kHz - DM attenuation at 288kHz: >30dB - CM attenuation at 288kHz: >40dB