BL0306

BL0306 ( 810 :200233 Tel:86-21-64850700 Fax:86-21-64854424 ) BL0306 CMOS BBD A-D D-A BL0306 M50195P ) BL0306 ADM( ) (BL0306 · ·3 · ( -90dBV) ( 0.5% ) (100 150 200ms) OK A6 MDI CAS RESET DO W RAS A0 A2 A1 A7 A5 A4 A3 D-GND CC1 CC2 SHORT 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 BL0306 36 VCC 35 LPF2 OUT2 34 LPF2 OUT1 33 LPF2 IN1 32 LPF2 IN2 31 OP2 OUT 30 OP2 IN 29 A-GND 28 LPF1 IN 27 LPF1 OUT 26 OP1 OUT 25 OP1 IN 24 REF 23 OSC IN 22 OSC OUT 21 LONG 20 MIDD 19 CDI PDIP 36 Pin : · 4.5kHz 5.4kHz R ,C , · Tds= 100ms , Tdm= 150ms , Tdl= 200ms , SHORT MIDD LONG .1. 20 MIDD>LONG>SHORT 7 BL0306 LPF2 LPF2 LPF2 LPF2 OP2 OP2 A LPF1 LPF1 OP1 OP1 OSC OSC VCC OUT2 OUT1 IN1 IN2 OUT IN GND IN OUT OUT IN REF IN OUT LONG MIDD CDI 36 35 34 33 32 31 30 29 28 27 26 25 24 23 22 21 20 19 4k 4.3k 3k 3k S2 2.3k CC2 - -- + S1 + + 2.3k + CC1 LPF2 OP2 LPF1 OP1 4k 10K / () .2. 7 1234567 A6 MDI CAS RESET DO W RAS 8 9 10 11 12 13 14 15 16 17 18 A0 A2 A1 A7 A5 A4 A3 D-GND CC1 CC2 SHORT BL0306 · , , () ³ 36 35 VCC 34 33 32 31 30 4.3k 3k 2.3k 2m 200m 2m 29 28 27 26 25 2.3k 200m 2m 200m 2m 24 23 22 21 20 19 20k 20k 4k Ref 4k 4.7k 4.7k 47k 200m 47k 20k 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 CMOS buffer CMOS buffer Pch MOS Tr Nch MOS Tr .3. 7 BL0306 () 16 2 3 4 5 6 7 80 92 10 _ _1 11 7 12 5 13 4 14 3 15 16 1 17 2 18 19 20 21 22 23 24 25 1 A6 MDI CAS RESET DO W RAS A0 A2 A1 A7 A5 A4 A3 D-GND CC1 CC2 SHORT CDI MIDDLE LONG OSC OUT OSC IN A...