SM6802A
Measurement Circuit
LEQP LEQN TESTN
MUTEN
SW3*
SW4*
H
L
H
L
C7
150p
C9
1µ
R9*
SPOUT NEG
POWER VDD
LEQP
LIN
VDD3
POWER VDD (2.7 to 5.5V)
C10 1µ
R10*
C1
LIN
SPOUT POS
LOUTP
VSS2
SIGNAL INPUT
1µ
POWER VSS (0V)
SPOUT POS
VDD1
C2
VDD1
RIN
C11 1µ
ROUTP
RIN
R11*
SIGNAL INPUT
1µ
REQP
VDD2
R12*
SPOUT NEG
SW1* SW2*
C8
H
L
H
L
150p
ANALOG VSS (0V)
REQN
PDWN
REQP
VSS1
DRCN
SIGNAL VSS (0V)
Note. *C3, C4, C5, C6: not inserted
*R1, R2, R3, R4, R5, R6, R7, R8: not inserted
*R9, R10, R11, R12: series resistors for dielectric speaker
*SW1: HIGH = Power on, LOW = Power off
*SW2: HIGH = DRC off, LOW = DRC on
*SW3: LOW = Test, HIGH = Normal
*SW4: LOW = Mute on, HIGH = Mute off
NIPPON PRECISION CIRCUITS INC.—7
NPC [ NIPPON PRECISION CIRCUITS INC ]
