BL3208 Datasheet, PDF (1/2 Pages) SHANGHAI BELLING CO., LTD. – 2048-stage low voltage operation, and low noise BBD variable delay line in audio

BL3208A/B 2048-Stage BBD
Description
The BL3208A/B is a 2048-stage low voltage operation, and low noise BBD variable delay line in audio
frequency range. The device operates on +5V to +10V supply and provides a signal delay up to 102.4ms.The
BL3208 contains 3208A and 3208B two classes. The only differences between them are the outlook and pin
assignment.
Pin Assignment
GND
CP1
IN
VGG
BL3208A
OUT 2
OUT 1
CP2
VDD
DIP 8 PIN
GND
VGG
CP 2
IN
BL3208B
OUT 1
CP1
OUT 2
VDD
DIP 8 PIN
Features
Adjustable audio signal delay time range: 10.24ms-
102.4ms
Wide supply voltage range: 5V-10V
Typical insertion loss: Li=0dB
Wide dynamic range: S/N=71B(type)
Low distortion: THD=2.5%(type)
Clock frequency range: 10kHz-100kHz
N-channel silicon gate process
8-pin plastic DIP for BL3208A, and 8-pin plastic
DIP in outlook of 14-pin DIP for BL3208B
Application
Chorus, fading, vibrato and reverberation on effects
of audio equipments.
Sound effect of electronic musical instruments
Variable or fixed time-delay circuit for analog signals.
Address No.810, YiShan Road ShangHai China Tel [phone] Fax [phone] Zip.200233