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PDF BD28620MUV Datasheet ( Hoja de datos )

Número de pieza BD28620MUV
Descripción 20W+20W Class D Speaker Amplifier
Fabricantes ROHM 
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BD28620MUV datasheet

1 Page

BD28620MUV pdf
BD28620MUV
Block Diagram
BSP2P
18
REGG
17
REGD
16
GNDA
15
VCCA
14
OUT1N
13
OUT2P
VCCP2
GNDP2
BSP2N
OUT2N
Driver
FET
2P
Output Short Protection
Output DC Voltage Protection
High Temperature Protection
Under Voltage Protection
Clock Stop Protection
Driver
FET
1N
feedback
PWM
Modulator
feedback
Driver
FET
2N
×4 Over
Sampling Digital Filter
Driver
FET
1P
ERROR
I2S I/F
Control I/F
1
MCLK
234
SDATA BCLK LRCLK
Figure 3. Block Diagram
5
PLIMT
6
RSTX
BSP1N
GNDP1
VCCP1
BSP1P
OUT1P
MUTEX
www.rohm.com
© 2014 ROHM Co., Ltd. All rights reserved.
TSZ2211115001
5/46
TSZ02201-0C1C0E900100-1-2
16.Mar.2015 Rev.004

5 Page

BD28620MUV arduino
BD28620MUV
Typical Performance Curves - continued (4/11)
(Unless otherwise specified, Ta=25°C, VCC=18V, f=1kHz, RL=8Ω, RSTX=3.3V, MUTEX=3.3V, fS=48kHz, MCLK=256fS,
PLIMIT=Pull up(27kΩ), Snubber circuit: C=680pF, R=5.6Ω, ROHM 4-layer Board)
35
PLIMT=H
30 RL=4Ω
25
THD+N=10%
20
15
THD+N=1%
10
5
0
6 8 10 12 14 16 18 20 22 24 26
Supply VoltVagCeC :[VV]CC [V]
Figure 17. Output Power vs Supply Voltage
(4Ω)
4
PLIMT=H
3.5 RL=4Ω
3 VCC=12V
2.5
2
VCC=14V
1.5
1
0.5
0
0 5 10 15 20 25
Output Power [W/CH]
Figure 18. Circuit Current vs Output Power
(4Ω)
35
PLIMT=H
30 RL=4.8Ω
25
THD+N=10%
20
15
THD+N=1%
10
5
0
6 8 10 12 14 16 18 20 22 24 26
Supply Voltage : VCC [V]
Figure 19. Output Power vs Supply Voltage
(4.8Ω)
3
PLIMT=H
2.5 RL=4.8Ω
2 VCC=12V
1.5 VCC=18V
1
0.5
0
0 5 10 15 20
Output Power [W/CH]
25
Figure 20. Circuit Current vs Output Power
(4.8Ω)
Dotted line means power dissipation is exceeded.
www.rohm.com
© 2014 ROHM Co., Ltd. All rights reserved.
TSZ2211115001
11/46
TSZ02201-0C1C0E900100-1-2
16.Mar.2015 Rev.004

11 Page





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