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Shanghai Belling - Digital Echo

Numéro de référence BL0306
Description Digital Echo
Fabricant Shanghai Belling 
Logo Shanghai Belling 





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BL0306 fiche technique
m BL0306 Digital echo
t4U.coDescription
eThe BL0306 is a digital ECHO IC fabricated with silicon gate CMOS technology . The BL0306 converts an
heinput analog signal to a digital signal and writes it into a memory IC,After a delay it reads out the digital
Ssignal from the memory IC and then converts to an analog signal again.
taLower noise and distortion delay signal is obtained by BL0306 than by BBD. An A-D,
.DaD-A converter block formed of ADM (Adaptive
Delta Modulation) circuit can produce a low-cost
wwwdelay system.(compatible with M50915P)
Pin Assignment
mA6
MDI
oCAS
RESET
.cDO
W
RAS
UA0
A2
t4A1
A7
eA5
A4
eA3
D-GND
hCC1
CC2
SSHORT
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
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
taPDIP 36Pin
.DaFeatures
wLow noise(-90dBV typ.)
wLow distortion(0.5% typ.)
w3 mode delay time (100,150,200ms)
Includes auto mute circuit to protect sound
mfrom digital noise caused by delay time
.comode change or power on.
www.DataSheet4UAddress No.810, YiShan Road ShangHai China Tel 86-021-64850700 Fax 86-64852222 Zip.200233

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