Technical Note
BH7824FVM,BH7826FVM
12/14
www.rohm.com
2011.08 - Rev.B
© 2011 ROHM Co., Ltd. All rights reserved.
0
25
50
75
100
125
0 25 50 75 100 125 150 175
SUSPEND RESISTANCE:R1[kΩ]
SHUT OUT TIME:Toff[msec]
C1=1.0μF
C1=0.47μF
C1=0.22μF
※C1:The capacitor connected to SUSPEND terminal
Ta=Room
temperature
VCC=3.6V
R
L
=8Ω
-60
-50
-40
-30
-20
-10
0
10 100 1000 10000 100000
FREQUENCY:f[Hz]
POWER SUPPLY REJECTION RATIO:
PSRR[dB]
Ta=Room
temperature
Vcc=3.6V
RL=8Ω
Vripple=100mVpp
BTL
R
IN
=600Ω
A
V
=8
A
V
=2
1k 10k
100k
10010
-70
-60
-50
-40
-30
-20
-10
0
10 100 1000 10000 100000
FREQUENCY:f[Hz]
POWER SUPPLY REJECTION RATIO:
PSRR[dB]
A
V
=8
A
V
=2
Ta=Room
temperature
Vcc=3.6V
RL=8Ω
Vripple=300mVpp
BTL
R
IN
=600Ω
1k 10k 100k10 100
0
25
50
75
100
125
0 25 50 75 100 125 150 175
SUSPEND RESISTANCE:R1[kΩ]
WAKE UP TIME:Ton[msec]
Ta=Room
temperature
VCC=3.6V
R
L
=8Ω
C1=1.0μF
C1=0.47μF
C1=0.22μF
※C1:The capacitor connected to SUSPEND terminal
Fig.28 Wake up time - SUSPEND terminal resistance
Fig.29 Shut out time - SUSPEND terminal resistance
Fig.30 Power Supply Rejection Ratio - Frequency
Fig.31 Power Supply Rejection Ratio - Frequency