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| 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 DIP 8 PIN GND CP 2 BL3208B OUT 1 OUT 2 DIP 8 PIN CP 1 VDD VGG IN BL3208A OUT 2 OUT 1 CP 2 VDD Features n n n n n n n n Adjustable audio signal delay time range: 10.24ms102.4ms 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 n n n 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 86-021-64850700 Fax 86-64852222 Zip.200233 BL3208A/B 2048-Stage BBD Application Circuit 3208 VDD IN 100K 100K 100K Low Pass Filter f1 3.3 out1 out2 in 3.3 Rs 5.6K Low Pass Filter f1 Out BL3208 Input Bias Circuit 47 Clock Component Cancellation Circuit 10K CP1VGG CP2 BL3102 Address No.810, YiShan Road ShangHai China Tel 86-021-64850700 Fax 86-64852222 Zip.200233 |
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