This part is a kind of semiconductor called BL3207.

Function of this product has 1024 segment low voltage and low noise BBD.

Manufacturers : SHANGHAI BELLING

Image and pinout :

Some of the text within the PDF file :

BL3207 1024 BBD 810 :200233 Tel:86-21-64850700 Fax:86-21-64854424 BL3207 1024 51.2ms BBD +5V · · · · · · ·N ·8 2.56ms~51.2ms 4~10V 0dB S/N=73dB( ) THD=0.4%( ) 10kHz~200kHz GND CP1 IN VGG BL3207 OUT2 OUT1 CP2 VDD OK 2048 BBD CP1 CP2 VGG 2049 2 1 1 GND 2 CP1 3 IN 4 VGG 5 VDD 6 CP2 7 OUT1 1 (VGG=14/15VDD ) 2 1024 .1. 4 BL3207 1024 BBD 8 OUT2 (Ta=25OC) 1024 VDD , VGG , VCP , VIN VOUT1 , VOUT2 Topr Tstg (Ta=25OC) -0.3~+11 -0.3~+11 -20~+60 -55~+125 V V OC OC VDD VGG VCPH VCPL fcp tw (cp) tr (cp) tf (cp) Vx +4 0 10 0 +5 (1415)VDD VDD +10 +1 200 0.5(1/fcp) 500 500 0.3VCPH V V V V kHz ns ns V t r(cp) t f(cp) CP2 90% 50% CP1 10% Vx t w(cp) T (Ta=25 OC, VDD=VCPH=5V, VCPL=0V,VGG=4.67V,RL=100kW, LPRfc=20kHz, Att=48dB/oct) td 10.24 fi fcp=40kHz, Vi= [ ... ]

BL3207 PDF Datasheet Download