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부품번호 | BA7726AS 기능 |
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기능 | Analog compander with vocal fader for KARAOKE | ||
제조업체 | ROHM Semiconductor | ||
로고 | |||
전체 11 페이지수
Multimedia ICs
Analog compander with vocal fader
for KARAOKE
BA7726AS / BA7726AFS
The BA7726AS and BA7726AFS are analog companders for karaoke echo systems and have internal logarithmic
compression and expansion circuits, a stereo line mixer amplifier, vocal fader function, vocal detection function,
microphone ALC, microphone ON / OFF switch, and output switch. When used together with the BU9252 8-bit digital
delay, these ICs form a high-grade karaoke echo system with minimum components.
•Applications
Portable CD stereos with karaoke functions, VCRs, mini component stereo systems, LD players
•Features
1) Internal stereo line mixer amplifier, allowing selec-
tion of through output, left output, or right output.
2) Internal vocal elimination function, suitable for vocal
faders and left and right output.
3) Echo level and loop ratio are DC-adjustable with the
internal electronic volume control (EVR).
4) Internal microphone ON / OFF switch.
5) Vocal detection.
6) Internal microphone ALC function.
7) Internal anti-popping circuit.
•Absolute maximum ratings (Ta = 25°C)
Parameter
Symbol
Limits
Power supply voltage
Power dissipation
VCC 14
BA7726AS 1250∗1
Pd
BA7726AFS 850∗2
Operating temperature
Topr
– 10 ~ + 70
Storage temperature
Tstg – 55 ~ + 125
∗1 Reduced by 12.5mW for each increase in Ta of 1°C over 25°C.
∗2 Reduced by 8.5mW for each increase in Ta of 1°C over 25°C.
Unit
V
mW
°C
°C
•Recommended operating conditions (Ta = 25°C)
Parameter
Symbol Min. Typ.
Power supply voltage
VCC 4.5 9.0
Max.
12.0
Unit
V
1
Multimedia ICs
•Input / output circuits
L / VF / R CTRL
VCC
3.3V
39k 39k
3
ECHO LEVEL CTRL
VCC
85k
11
39k
15k
BA7726AS / BA7726AFS
MUTE CTRL
VCC
1.7V
39k
4
150k
2.5V
LOOP GAIN CTRL
0.6 × VCC
0.8 × VCC
12
39k
0.6 × VCC
0.8 × VCC
NO / VC CTRL
VCC
39k
31
49.5k
33k
L / ST / R CTRL
VCC
3.3V
39k 39k
32
∗ All figures are designed values, and are not guaranteed standards.
4
1.7V
4페이지 Multimedia ICs
•Measurement circuit
BA7726AS / BA7726AFS
1k
8.2k 6.8k
+
1k
+
++
32 31 30 29 28 27 26 25
OUTSW
VOCAL
DET
ALC VR
–
VOCAL
FADER
SW
24
100µ
A
5600p 3900p
0.47µ
+
18k 39k
220p
23 22 21 20 19 18
COMPRESS
–
+
VR
VR
EXPAND
17
+–
12
++
2.2µ 2.2µ
3
4700p 4700p
456
0.1µ
0.1µ
789
0.015µ
1k 1k
0.068µ
10 11 12 13 14 15 16
+
0.1µ 0.47µ
10k 10k
3900p
+1µ
+1µ
47k 18k 18k
10k
CMP BF OUT
DLY BF IN
1k
5600p
Fig. 1
7
7페이지 | |||
구 성 | 총 11 페이지수 | ||
다운로드 | [ BA7726AS.PDF 데이터시트 ] |
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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 ] |
부품번호 | 상세설명 및 기능 | 제조사 |
BA7726AFS | Analog compander with vocal fader for KARAOKE | ROHM Semiconductor |
BA7726AS | Analog compander with vocal fader for KARAOKE | ROHM Semiconductor |
DataSheet.kr | 2020 | 연락처 | 링크모음 | 검색 | 사이트맵 |