BL3207 Datasheet, PDF (1/1 Pages) SHANGHAI BELLING CO., LTD. – 024-stage low voltage operation,and low noise BBD variable delay line in audio

BL3207A/B 1024-Stage BBD
Description
The BL3207A/B is a 1024-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 51.2ms.
Pin Assignment
GND
CP1
IN
BL3207
VGG
OUT 2
OUT 1
CP2
VDD
PDIP 8 PIN
Features
Adjustable audio signal delay time range:2.56ms-51.2ms
Wide supply voltage range:4V-10V
Typical insertion loss: Li=0dB
Wide dynamic range: S/N=73dB(type)
Low distortion: THD=0.4%(type)
Clock frequency range:10kHz-200kHz
N-channel silicon gate process
8-pin plastic DIP
Application
KARAOKE, TV, VCR. Radio-Cassette Tape Recorder etc.
Application Circuit
Vdd
IN Low Pass Filter
3.3µ
f1<foff<fcp
Attn>40dB/oct
out1
out2
in
BL3207
Input Bias
Circuit
47µ
CP1VGG
CP2
BL3102
3.3µ _{Low Pass Filter} Out
f1<foff<fcp
Attn>40dB/oct
Clock
Component
Cancellation
Circuit
ddress No.810, YiShan Road ShangHai China Tel [phone] Fax [phone] Zip.200233