Onkyo A-5VL Service Manual page 22

IC BLOCK DIAGRAM/ TERMINAL DESCRIPTION
Q601/Q602: IRS20954S DIGITAL AUDIO DRIVER-2
BLOCK DIAGRAM
VDD
IN
10.4V
VSS
CHARE/
DISCHARGE
CSD
PROTECTION
CONTROL
FLOATING INPUT
UV
DETECT
INPUT
LOGIC
HV
LEVEL
SHIFT
LEVEL
SHIFT
HV
LEVEL
SHIFT
HV
LEVEL
SHIFT
UV
DETECT
UV
HIGH
SIDE
CS
HV
HV
FLOATING HIGH SIDE
LEVEL
SHIFT
5V REG
UV
DETECT
DEAD-TIME
SD DT
A-5VL
CSH
VB
Q
HO
VS
VCC
LO
COM
LOW SIDE CS
OCSET
5.1V REFEREANCE
VREF
DT