Digital Echo. BL0305 Datasheet

BL0305 Echo. Datasheet pdf. Equivalent


Shanghai Belling BL0305
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 Datasheet
Recommendation BL0305 Datasheet
Part BL0305
Description Digital Echo
Feature BL0305; w w a D . w Description The BL0305 is a CMOS IC for generating echo to be added to the voice thro.
Manufacture Shanghai Belling
Datasheet
Download BL0305 Datasheet




Shanghai Belling BL0305
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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