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부품번호 | BU9252S 기능 |
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기능 | Audio digital delay (KARAOKE echo) | ||
제조업체 | ROHM Semiconductor | ||
로고 | |||
전체 6 페이지수
Multimedia ICs
Audio digital delay (KARAOKE echo)
BU9252S / BU9252F
The BU9252S and BU9252F are digital delays specifically for Karaoke systems. Each has an internal sample hold
circuit, an 8-bit A / D and D / A converter and 2kB SRAM, and allows for the selection of one of eight delay times just
by attaching an inexpensive ceramic resonator.
A digital echo system can be formed by using either of these ICs together with the BA7725S or BA7725FS.
•Applications
Karaoke echo system
Electronic circuits that require signal delays
•Features
1) Internal digital delay circuit.
2) Internal 8-bit A / D converter. Sample rate. (14.22kHz
when fOSC = 455kHz).
3) Internal 2k bytes data SRAM.
4) Internal 8-bit D / A converter.
5) CMOS design for low power consumption.
6) Internal sample hold circuit.
7) Internal feedback resistors and capacitors for oscilla-
tor circuits.
•Block diagram
TEST CIRCUIT
8 × 2k SRAM
ADDRESS COUNTER
AND
MAIN TIMING
1
Multimedia ICs
•Absolute maximum ratings (Ta = 25°C)
Parameter
Symbol
Limits
Power supply voltage
Power
BU9252S
dissipation BU9252F
VDD – 0.3 ~ + 7.0
600∗1
Pd
450∗2
Storage temperature
Tstg – 55 ~ + 125
Input voltage
VIN – 0.3 ~ VDD + 0.3
Output voltage
VOUT
– 0.3 ~ VDD + 0.3
∗1 IC only. Reduce by – 6mW / °C for each in Ta of 1°C over 25°C.
∗2 IC only. Reduce by – 4.5mW / °C for each in Ta of 1°C over 25°C.
Unit
V
mW
°C
V
V
•Recommended operating conditions
Parameter
Symbol
Power supply voltage
VDD
Analog power supply voltage
AVDD
Input "L" voltage
VIL
Input "H" voltage
VIH
Analog input voltage
VAIN
Clock frequency
fOSC
Operating temperature
Topr
Limits
4.5 ~ 5.5
VDD
0.0 ~ 0.2VDD
0.8VDD ~ VDD
0 ~ AVDD
200 ~ 1000
– 10 ~ + 70
Unit
V
V
V
V
V
kHz
°C
BU9252S / BU9252F
•Electrical characteristics (unless otherwise noted, Ta = 25°C, VDD = AVDD = 5V)
Parameter
Symbol Min. Typ. Max. Unit
Conditions
Supply current
IDD — 3.5 12 mA VAIN = AVDD, fOSC = 455kHz
Analog output current
Analog input impedance
IAOUT
RAIN
1 4 — mA VAOUT = 1V, VAIN = 0V
0.3 0.8 — mA VAOUT = 0.5VDD, VAIN = VDD
12 25 60 kΩ ∗
A / D to D / A precision
RES
—
2
— LSB
OSCO output "L" voltage
VLOSC
—
0.6 1.2
V IOL = 100µA
OSCO output "H" voltage
VHOSC
3.8
4.4
—
V IOH = – 100µA
OSCI feedback loop current IOSCI 1 6 20 µA VOSCI = VDD
Oscillation capacity
—
— 150 —
pF
∗ The bias circuit is impedance.
4
4페이지 | |||
구 성 | 총 6 페이지수 | ||
다운로드 | [ BU9252S.PDF 데이터시트 ] |
당사 플랫폼은 키워드, 제품 이름 또는 부품 번호를 사용하여 검색할 수 있는 |
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 |
BU9252F | Audio digital delay (KARAOKE echo) | ROHM Semiconductor |
BU9252S | Audio digital delay (KARAOKE echo) | ROHM Semiconductor |
DataSheet.kr | 2020 | 연락처 | 링크모음 | 검색 | 사이트맵 |