Datasheet.kr   

BD5446EFV 데이터시트 PDF




ROHM Semiconductor에서 제조한 전자 부품 BD5446EFV은 전자 산업 및 응용 분야에서
광범위하게 사용되는 반도체 소자입니다.


PDF 형식의 BD5446EFV 자료 제공

부품번호 BD5446EFV 기능
기능 Class-D Speaker Amplifier
제조업체 ROHM Semiconductor
로고 ROHM Semiconductor 로고


BD5446EFV 데이터시트 를 다운로드하여 반도체의 전기적 특성과 매개변수에 대해 알아보세요.




전체 30 페이지수

미리보기를 사용할 수 없습니다

BD5446EFV 데이터시트, 핀배열, 회로
www.DataSheet4U.com
Middle Power Class-D Speaker Amplifiers
Class-D Speaker Amplifier
for Digital Input
BD5446EFV
No.10075EBT14
Description
BD5446EFV is a Class D Speaker Amplifier designed for Flat-panel TVs in particular for space-saving and low-power
consumption, delivers an output power of 20W+20W. This IC employs state-of-the-art Bipolar, CMOS, and DMOS (BCD)
process technology that eliminates turn-on resistance in the output power stage and internal loss due to line resistances up
to an ultimate level. With this technology, the IC can achieve high efficiency of 87% (10W+10W output with 8load). In
addition, the IC is packaged in a compact reverse heat radiation type power package to achieve low power consumption
and low heat generation and eliminates necessity of external heat-sink up to a total output power of 40W. This product
satisfies both needs for drastic downsizing, low-profile structures and many function, high quality playback of sound system.
Features
1) BD5446EFV has two system of digital audio interface.
(I2S/LJ format, SDATA: 16 / 20 / 24bit, LRCLK: 32kHz / 44.1kHz / 48kHz, BCLK: 64fs (fixed), SYS_CLK: 256fs (fixed))
2) Within the wide range of the power supply voltage, it is possible to operate in a single power supply. (10~26V)
3) It contributes to miniaturizing, making to the thin type, and the power saving of the system by high efficiency and low heat.
4) S/N of the system can be optimized by adjusting the gain setting among 8 steps. (20~34dB / 2dB step)
5) It has the output power limitation function that can be adjusted to an arbitrary output power.
6) The decrease in sound quality because of the change of the power supply voltage is prevented with the feedback
circuitry of the output. In addition, a low noise and low distortion are achieved.
7) It provides with the best stereo DAC output for the headphone usage. As a result, the output of the selection of the
digital input in two systems is possible.
8) Eliminates pop noise generated when the power supply goes on/off, or when the power supply is suddenly shut off.
High quality muting performance is realized by using the soft-muting technology.
9) BD5446EFV is a highly reliable design to which it has various protection functions.
(High temperature protection, Under voltage protection, Output short protection, Output DC voltage protection and
Clock stop protection)
Applications
Flat Panel TVs (LCD, Plasma), Home Audio, Desktop PC, Amusement equipments, Electronic Music equipments, etc.,
www.rohm.com
© 2010 ROHM Co., Ltd. All rights reserved.
1/30
2010.05 - Rev.B




BD5446EFV pdf, 반도체, 판매, 대치품
BD5446EFV
Technical Note
www.DataSheet4U.com
Electrical characteristic curves(VCC=13V,Ta=25,RL_SP=8,RL_DA=20k,Gain=20dB,fin=1kHz,fs=48kHz)
Measured by ROHM designed 4 layer board.
100
90
80
70 Sampling
60
50
40 Mute
30
20
10
0
8 10 12 14 16 18 20 22 24 26 28
VCC(V)
Fig.1
Current consumption
- Power supply voltage
44
40
36 THD=10%
32
28
24
20
16 THD=1%
12
8
4
0
8 10 12 14 16 18 20 22 24 26 28
VCC(V)
Fig.2
Output power
- Power supply voltage
3
VCC=13V
2
VCC=18V
1
0
0 5 10 15 20 25 30 35 40
TOTAL OUTPUT POWER(W)
Fig.3
Current consumption
- Output power
100
90
80
70
60
50
40
30
20
10
0
0
2 4 6 8 10
OUTPUT PO WER(W/ch)
Fig.4
12
Efficiency - Output power
30
28 Po=1W
26 L=22µH
24 C=0.47µF
22 Cg=0.068µF
20
18
16
14
12
10
10 100 1k 10k
FREQUENCY(Hz)
100k
Fig.5
Voltage gain - Frequency
0
-20
Without signal
BW=2020KHz
-40
-60
-80
-100
-120
-140
10
100 1k 10k
FREQUENCY(Hz)
100k
Fig.6
FFT of Output noise voltage
100
BW=2020KHz
10
1 6KHz
1KHz
0.1
100Hz
0.01
0.001 0.01 0.1 1 10
OUTPUT POWER(W)
100
Fig.7
THD+N - Output power
0
-10 Po=1W
-20 BW=2020KHz
-30
-40
-50
-60
-70
-80
-90
-100
10 100 1k 10k
FREQUENCY(Hz)
Fig.10
100k
Crosstalk –Frequency
100
Po=1W
BW=2020KHz
10
1
0.1
0.01
10
100 1k 10k
FREQUENCY(Hz)
Fig.8
100k
THD+N - Frequency
fin=300Hz
Po=3.3W
5V/div
Speaker output
2V/div
MUTEX
10ms/div
Fig.11
Wave form when
Releasing Soft-mute
0
-10
-20
-30
-40
-50
-60
-70
-80
-90
-100
BW=2020KHz
0.001 0.01 0.1
1
OUTPUT POWER(W)
10
Fig.9
Crosstalk - Output power
Speaker output
fin=300Hz
Po=3.3W
5V/div
MUTEX
2V/div
10ms/div
Fig.12
Wave form when
Activating Soft-mute
www.rohm.com
© 2010 ROHM Co., Ltd. All rights reserved.
4/30
2010.05 - Rev.B

4페이지










BD5446EFV 전자부품, 판매, 대치품
BD5446EFV
Pin function explanation (Provided pin voltages are typ. Values)
No. Pin name Pin voltage
Pin explanation
1 REG_G1
27 REG_G2
5.5V
Internal power supply pin for ch1 Gate driver
Internal power supply pin for ch2 Gate driver
Please connect the capacitor.
Technical Note
www.DataSheet4U.com
Internal equivalence circuit
53,54
28,29
1
27
45,46
36,37
550K
25
Bias pin for PWM signal
2
FILP
1.75V~2.55V
Please connect the capacitor.
2
3 PLMT
4 FILA
5 REG3
0V Power limiter setting terminal
2.5V
Bias pin for Analog signal
Please connect the capacitor.
3.3V
Internal power supply pin for Digital circuit
Please connect the capacitor.
6
25
3
6
27
4
6
25
400K
50K
50K
5
500K
6
6 GNDA
0V GND pin for Analog signal
www.rohm.com
© 2010 ROHM Co., Ltd. All rights reserved.
7/30
2010.05 - Rev.B

7페이지


구       성 총 30 페이지수
다운로드[ BD5446EFV.PDF 데이터시트 ]

당사 플랫폼은 키워드, 제품 이름 또는 부품 번호를 사용하여 검색할 수 있는

포괄적인 데이터시트를 제공합니다.


구매 문의
일반 IC 문의 : 샘플 및 소량 구매
-----------------------------------------------------------------------

IGBT, TR 모듈, SCR 및 다이오드 모듈을 포함한
광범위한 전력 반도체를 판매합니다.

전력 반도체 전문업체

상호 : 아이지 인터내셔날

사이트 방문 :     [ 홈페이지 ]     [ 블로그 1 ]     [ 블로그 2 ]



관련 데이터시트

부품번호상세설명 및 기능제조사
BD5446EFV

Class-D Speaker Amplifier

ROHM Semiconductor
ROHM Semiconductor

DataSheet.kr       |      2020   |     연락처      |     링크모음      |      검색     |      사이트맵