BL0306 データシートの表示（PDF） - Unspecified

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BL0306

Digital Echo

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BL0306 Digital echo

Description

The BL0306 is a digital ECHO IC fabricated with silicon gate CMOS technology . The BL0306 converts an

input analog signal to a digital signal and writes it into a memory IC,After a delay it reads out the digital

signal from the memory IC and then converts to an analog signal again.

Lower noise and distortion delay signal is obtained by BL0306 than by BBD. An A-D,

D-A converter block formed of ADM (Adaptive

Delta Modulation) circuit can produce a low-cost

delay system.(compatible with M50915P)

Pin Assignment

A6 1

MDI 2

CAS 3

RESET 4

DO 5

W6

RAS 7

A0 8

A2 9

A1 10

A7 11

A5 12

A4 13

A3 14

D-GND 15

CC1 16

CC2 17

SHORT 18

36 VCC

35 LPF2 OUT2

34 LPF2 OUT1

33 LPF2 IN1

32 LPF2 IN2

31 OP2 OUT

30 OP2 IN

29 A-GND

28 LPF1 IN

27 LPF1 OUT

26 OP1 OUT

25 OP1 IN

24 REF

23 OSC IN

22 OSC OUT

21 LONG

20 MIDD

19 CDI

PDIP 36Pin

Features

·Low noise(-90dBV typ.)

·Low distortion(0.5% typ.)

·3 mode delay time (100,150,200ms)

·Includes auto mute circuit to protect sound

from digital noise caused by delay time

mode change or power on.

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

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