Rohm BU7858KN, Technical Note

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0.0
0.5
1.0
1.5
2.0
2.5
3.0
3.5
4.0
4.5
5.0
2.6 2.8 3.0 3.2 3.4
SUPLLY VOLTAGE : AVDD(V)
S
T
A
ND-B
Y
CURRE
NT : ICC (
μ
A)
1.4
1.5
1.6
1.7
1.8
1.9
2.0
2.6 2.8 3.0 3.2 3.4
SUPLLY VOLTAGE : AVDD(V)
OP
E
R
A
T
ION CURRE
NT : ICC (mA
)
-90.0
-80.0
-70.0
-60.0
-50.0
-40.0
-30.0
-20.0
-10.0
0.0
-100 -80 -60 -40 -20 0
INPUT LEVEL (dBFS)
THD+N
(d
B
)
-90.0
-80.0
-70.0
-60.0
-50.0
-40.0
-30.0
-20.0
-10.0
0.0
10 100 1000 10000 100000
INPUT SIGNAL FREQUENCY (Hz)
THD+
N
(d
B)
【
BU7893GU
】
Fig.12 DVDD_CORE
Standby Current
Fig.13 AVDD Standby
Current
Fig.14 DVDD_CORE
Operation
Current
(Analog melody)
Fig.15 AVDD
Operation
Current (Analog melody)
Fig.16 DVDD_CORE
Operation
Current (digital
melody)
Fig.17 AVDD
Operation
Current (digital melody)
Fig.18 16bit D/A Converter Total
Harmonic Distortion 1kHz (SPOL)
Fig.19 16bit D/A Converter Total
Harmonic Distortion 1kHz (SPOR)
Fig.20 16bit D/A Converter Total
Harmonic Distortion (SPOL)
Fig.21 16bit D/A Converter Total
Harmonic Distortion (SPOR)
Fig.22 Headphone Amplifier Total
Harmonic Distortion (HPOL / HPOR)
Fig.23 Speaker Preamp
Total Harmonic Distortion
(SPOL / SPOR)
0.0
0.5
1.0
1.5
2.0
2.5
3.0
3.5
4.0
4.5
5.0
1.6 1.7 1.8 1.9 2.0
SUPLLY VOLTAGE : DVDD_CORE(V)
OP
E
R
A
T
ION CURRE
NT : ICC (
μ
A)
0.0
0.5
1.0
1.5
2.0
2.5
3.0
3.5
4.0
4.5
5.0
1.6 1.7 1.8 1.9 2.0
SUPLLY VOLTAGE : DVDD_CORE(V)
S
T
A
ND-B
Y
CURRE
NT: ICC (
μ
A)
2.0
2.5
3.0
3.5
4.0
4.5
5.0
1.6 1.7 1.8 1.9 2.0
SUPLLY VOLTAGE : DVDD_CORE(V)
OP
E
R
A
T
ION CURRE
NT : ICC (m
A
)
3.0
3.1
3.2
3.3
3.4
3.5
3.6
3.7
3.8
3.9
4.0
2.6 2.8 3.0 3.2 3.4
SUPLLY VOLTAGE : AVDD(V)
OP
E
R
A
T
ION CURRE
NT : ICC (mA
)
-90.0
-80.0
-70.0
-60.0
-50.0
-40.0
-30.0
-20.0
-10.0
0.0
-100 -80 -60 -40 -20 0
INPUT LEVEL (dBFS)
THD+
N
(d
B)
-90.0
-80.0
-70.0
-60.0
-50.0
-40.0
-30.0
-20.0
-10.0
0.0
10 100 1000 10000 100000
INPUT SIGNAL FREQUENCY (Hz)
THD+
N
(d
B)
0.0
0.1
1.0
10.0
100.0
-100 -80 -60 -40 -20 0
INPUT LEVEL (dBV)
THD+N
(%)
0.01
0.10
1.00
10.00
100.00
-100 -80 -60 -40 -20 0
INPUT LEVEL (dBV)
THD+N
(%)