SM6801A Datasheet, PDF (8/16 Pages) Nippon Precision Circuits Inc – Class-D Mono Amplifier for Portable Device

Measurement Circuit
SM6801A
VDD1
C1
IN
SIGNAL INPUT
1µ
DRCN MUTEN VDD2 PDWN
SW2*
SW3*
H
H
L
L
SW4*
H
L
POWER VDD
DRCN
VDD1
VREF1
C5 1µ
IN
OUTP
VSS2
OUTN
VDD3
C6 1µ
R5*
R6*
C7 1µ
SPOUT POS
POWER VSS (0V)
SPOUT NEG
C4
150p
SW1*
H
L
ANALOG VSS (0V)
EQP EQN VSS1 TESTN
SIGNAL VSS (0V)
Note. *C2, C3: not inserted
*R1, R2, R3, R4: not inserted
*R5, R6: series resistors for dielectric speaker
*SW1: HIGH = Normal, LOW = Test
*SW2: LOW = DRC on, HIGH = DRC off
*SW3: LOW = Mute on, HIGH = Mute off
*SW4: LOW = Power off, HIGH = Power on
SEIKO NPC CORPORATION —8