Harman Kardon HKTS 200 SUB - Subwoofer Block Diagram

MCU
(Renesas R8C/1B Series, 8 kB flash)
(8 MHz)
Audio Processor / PWM
Modulator
(ST309A, 36 bit)
Two 2-pos Slide
Switch’s
I2C
Power Stage
(ST516B, 1x200 W)
Woofer
(4 Ohm)
Analog
Input Buffer (w/
potentiometer for volume
ctrl)
ADC (AK5358A, 24
bit, 32 kHz, 102 dB)
I2S
OSC
(8.192 MHz)
Standby Ctrl
HKTS200SUB Subwoofer Block Diagram
clk
Power Supply
200 W SMPS, 200-264 / 90 –132 V switchable ac input
+48 V for 200 W into 4 Ohms
LED Trigger Input, plug
and level detection
to ADC, for
standby
clk
NTC Temperature
Sensor
ADC
ADC
IO
Power Stage Fault
Detection Circuit
HKTS200SUB
harman/kardon
13