BU9253AS_05 Datasheet, PDF (5/17 Pages) Rohm – Karaoke/Surround Digital Echo

●Reference data
＜BU9253AS/FS＞
Ta=25℃
7.0
6.5
6.0
5.5
5.0
4.5
4.0
4.0
4.5
5.0
5.5
INPUT VOLTAGE : VCC [V]
Fig.1 Current consumption
Ta=25℃
385
380
375
370
365
360
355
4.0
4.5
5.0
5.5
INPUT VOLTAGE : VCC [V]
Fig.2 Oscillation frequency
VCC=5V / Ta=25℃
4.5
4.0
3.5
Mute
3.0
2.5
2.0
1.5
1.0
Mute & OSC stop
0.5
0.0
4.0
4.5
5.0
5.5
INPUT VOLTAGE : VCC [V]
Fig.4 Mute pin threshold
VCC=5V / Ta=25℃
20
10
0
-10
-20
-30
-40
1K
10K
100K
1M 10M
INPUT FREQUENCY : FIN [Hz]
Fig.7 LPF operation amplifier frequency
characteristic
VCC=5V / Ta=25℃
6
5
4
3
2
1
0
-1.5
-1.0 -0.5 0.0 0.5 1.0 1.5
OUTPUT CURRENT : IOUT [mA]
Fig.10 LPF operation amplifier
output performance
VCC=5V / Ta=25℃
10
0
-10
-20
-30
-40
-50
-60
-70
-80
-90
0.0
1.0 2.0 3.0 4.0 5.0
ECHO VR VOLTAGE : VR [V]
Fig.5 ECHO VR characteristic
VCC=5V / Ta=25℃
20
10
0
-10
-20
-30
-40
1K
10K
100K
1M
10M
INPUT FREQUENCY : FIN [Hz]
Fig.8 MIX operation amplifier
frequency characteristic
VCC=5V / Ta=25℃
6
5
4
3
2
1
0
-1.5
-1.0 -0.5 0.0 0.5 1.0 1.5
OUTPUT CURRENT : IOUT [mA]
Fig.11 MIX operation amplifier
output performance
5/16
Ta=25℃
2
0
Through side
-2
-4
Delay side
-6
-8
4.0
4.5
5.0
5.5
INPUT VOLTAGE : VCC [V]
Fig.3 Total gain characteristic
VCC=5V / Ta=25℃
10
5
0
-5
-10
-15
-20
0.1
1.0
10.0
INPUT FREQUENCY: FIN [kHz]
Fig.6 A/D frequency characteristic
VCC=5V / Ta=25℃
5.5
5.0
THD=３%
4.5
4.0
3.5
3.0
2.5
1.0
10.0
100.0
OUTPUT LOAD : RLOAD [kΩ]
Fig.9 Through side output load drive
characteristic
VCC=5V / Ta=25℃
5.5
5.0
THD=1%
4.5
4.0
3.5
3.0
2.5
1.0
10.0
100.0
OUTPUT LOAD : RLOAD [kΩ]
Fig.12 Delay side output load drive
characteristic