Address： No.810, YiShan Road ShangHai China Tel：86-021-64850700 Fax：86-64852222 Zip.200233

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).

LPF1 IN

1

LPF1 OUT 2

OP1 IN

OP1 OUT

4

3

CC2

CC1

7

6

5

GND

REF

LPF2 IN

OP2 IN

OP2 OUT

CLOCK

V

12

9

8

10

11

13

14

LPF2 OUT

DIP 14 Pin

Pin Assignment

CC

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)