파트넘버.co.kr BL0305 데이터시트 PDF


BL0305 반도체 회로 부품 판매점

Digital Echo



Shanghai Belling 로고
Shanghai Belling
BL0305 데이터시트, 핀배열, 회로
m BL0305 Digital Echo (Digital Delay)
t4U.coDescription
eThe BL0305 is a CMOS IC for generating echo to be added to the voice through a “karaoke” microphone. It
heis designed for the lowest price of models in the same series,and is suitable for application to the echo
Sgenerator of a radio cassette player, minicomponent stereo set, TV etc. Increased master clock frequency
taassures highperformance short delay, enabling the IC to be used for digital surround ( Compatible with
.DaM65844P).
www Pin Assignment
LPF1 IN
mLPF1 OUT
oOP1 OUT
.cOP1 IN
CC1
UCC2
t4GND
1
2
3
4
5
6
7
14 VCC
13 CLOCK
12 REF
11 OP2 IN
10 OP2 OUT
9 LPF2 IN
8 LPF2 OUT
eeDIP 14 Pin
ShFeatures
taAll functions necessary for generating
digital echo are contained, enabling
aproduction of low-priced echo generator.
C-R oscillation circuit is provided for a master clock,
.DBuilt-in auto power-on reset circuit.
No control signal is required.
wDelay time=150msec(with master clock set at 220 kHz)
ww14-pin DIP package.(14PDIP)
Address
No.810, YiShan Road ShangHai China Tel
www.DataSheet4U.com86-021-64850700 Fax 86-64852222 Zip.200233


BL0305 데이터시트, 핀배열, 회로
BL0305 Digital Echo (Digital Delay)
Application
KARAOKE, TV, VCR. Radio-Cassette Tape Recorder etc.
+
C3
0.01µ
C1
R2
16K
R3 16K
R4
30K C2
510p
1 LPF1 IN
2 LPF1 OUT
3 OP1 OUT
C4
C5
0.1µ
VR1
50K
C6
0.22µ
4 OP1 IN
5 CC1
C7
0.22µ 6 CC2
7 GND
C16
47µ
C15
0.1µ
VCC 14
CLOCK 13
R11*
47K
C14
100p
REF 12 + C13
47µ
OP2 IN 11
OP2 OUT 10
LPF2 IN 9
R9
16K
LPF2 OUT 8
C10
0.0022µ
C12
0.1µ
R10
16K
C11
0.01µ
R8
16K
+
C8
Address No.810, YiShan Road ShangHai China Tel 86-021-64850700 Fax 86-64852222 Zip.200233




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