BL0305 Datasheet, PDF (1/2 Pages) SHANGHAI BELLING CO., LTD. – Digital Echo (Digital Delay)

BL0305 Digital Echo (Digital Delay)
Description
The BL0305 is a CMOS IC for generating echo to be added to the voice through a “karaoke” microphone. It
is designed for the lowest price of models in the same series,and is suitable for application to the echo
generator of a radio cassette player, minicomponent stereo set, TV etc. Increased master clock frequency
assures highperformance short delay, enabling the IC to be used for digital surround ( Compatible with
M65844P).
Pin Assignment
LPF1 IN 1
LPF1 OUT 2
OP1 OUT 3
OP1 IN 4
CC1 5
CC2 6
GND 7
14 VCC
13 CLOCK
12 REF
11 OP2 IN
10 OP2 OUT
9 LPF2 IN
8 LPF2 OUT
DIP 14 Pin
Features
All functions necessary for generating
digital echo are contained, enabling
production of low-priced echo generator.
C-R oscillation circuit is provided for a master clock,
Built-in auto power-on reset circuit.
No control signal is required.
Delay time=150msec(with master clock set at 220 kHz)
14-pin DIP package.(14PDIP)
Address No.810, YiShan Road ShangHai China Tel [phone] Fax [phone] Zip.200233