BU7858KN_10 Datasheet, PDF (7/25 Pages) Rohm – Mixer & Selector ICs with 16bit D/A Converter

BU7858KN,BU7893GU
Technical Note
【BU7893GU】
5.0
4.5
4.0
3.5
3.0
2.5
2.0
1.5
1.0
0.5
0.0
1.6
1.7
1.8
1.9
2.0
SUPLLY VOLTAGE : DVDD_CORE(V)
Fig.12 DVDD_CORE
Standby Current
5.0
4.5
4.0
3.5
3.0
2.5
2.0
1.5
1.0
0.5
0.0
2.6
2.8
3.0
3.2
3.4
SUPLLY VOLTAGE : AVDD(V)
Fig.13 AVDD
Standby Current
5.0
4.5
4.0
3.5
3.0
2.5
2.0
1.5
1.0
0.5
0.0
1.6
1.7
1.8
1.9
2.0
SUPLLY VOLTAGE : DVDD_CORE(V)
Fig.14 DVDD_CORE
Operation Current (Analog melody)
2.0
1.9
1.8
1.7
1.6
1.5
1.4
2.6
2.8
3.0
3.2
3.4
SUPLLY VOLTAGE : AVDD(V)
Fig.15 AVDD
Operation Current (Analog melody)
5.0
4.5
4.0
3.5
3.0
2.5
2.0
1.6
1.7
1.8
1.9
2.0
SUPLLY VOLTAGE : DVDD_CORE(V)
Fig.16 DVDD_CORE
Operation Current (digital melody)
4.0
3.9
3.8
3.7
3.6
3.5
3.4
3.3
3.2
3.1
3.0
2.6
2.8
3.0
3.2
3.4
SUPLLY VOLTAGE : AVDD(V)
Fig.17 AVDD
Operation Current (digital melody)
0.0
-10.0
-20.0
-30.0
-40.0
-50.0
-60.0
-70.0
-80.0
-90.0
-100 -80 -60 -40 -20
0
INPUT LEVEL (dBFS)
Fig.18 16bit D/A Converter
Total Harmonic Distortion 1kHz (SPOL)
0.0
-10.0
-20.0
-30.0
-40.0
-50.0
-60.0
-70.0
-80.0
-90.0
-100 -80 -60 -40 -20
0
INPUT LEVEL (dBFS)
Fig.19 16bit D/A Converter
Total Harmonic Distortion 1kHz (SPOR)
0.0
-10.0
-20.0
-30.0
-40.0
-50.0
-60.0
-70.0
-80.0
-90.0
10
100
1000 10000 100000
INPUT SIGNAL FREQUENCY (Hz)
Fig.20 16bit D/A Converter
Total Harmonic Distortion (SPOL)
0.0
-10.0
-20.0
-30.0
-40.0
-50.0
-60.0
-70.0
-80.0
-90.0
10
100
1000 10000 100000
INPUT SIGNAL FREQUENCY (Hz)
Fig.21 16bit D/A Converter
Total Harmonic Distortion (SPOR)
www.rohm.com
© 2010 ROHM Co., Ltd. All rights reserved.
100.00
100.0
10.00
10.0
1.00
1.0
0.10
0.1
0.01
-100.0 -80.0 -60.0 -40.0 -20.0 0.0
INPUT LEVEL (dBV)
Fig.22 Headphone Amplifier
Total Harmonic Distortion (HPOL / HPOR)
0.0
-100 -80 -60 -40 -20 0
INPUT LEVEL (dBV)
Fig.23 Speaker Preamp
Total Harmonic Distortion (SPOL / SPOR)
7/24
2010.09 - Rev.A