address o no.810, yishan road shanghai china tel o 86-021-64850700 fax o 86-64852222 zip.200233 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 dip 8 pin BL3208A gnd cp 1 in v gg cp v dd out 2 out 1 2 v in 1 bl3208b dip 8 pin gg dd v cp cp gnd out out 2 2 1 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 o no.810, yishan road shanghai china tel o 86-021-64850700 fax o 86-64852222 zip.200233 BL3208A/b 2048-stage bbd application circuit 3208 in low pass filter f140db/oct 3.3 input bias circuit 47 10k 100k in bl3208 out1 out2 100k 100k cp v gg 1 cp 2 bl3102 5.6k rs 3.3 attn>40db/oct low pass filter f1 |
