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L1 C8-C16 VT1-VT9 R3-R11. , "" VT1 -VT9 .
VT20 VT1-VT9 . VT20 VT22. VT22 DA3.1.
VD13, VD14, . , R29 . . DA3.1, "0".
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. VT22, VT20, VT1-VT9, .
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VT19 K1 C28-C30, 34- C63 ( T1) . R2 , C27. 30...35 , VD9, 36 , . VT19 K1, , .
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( ) - 76 . 10 64 . , 10 , R3-R20 10 .
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100x10 1000 , . . 960x15x4 , . - 15x8 , - 1920 , - 0,75 /, - 24 C, - 29 C. .
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- , ......0,1...10000
- , ......10-5...500
- , ......110-6...2
- , ......1
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- , ......8...15
- , , .....100
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Analog Devices AD8561AR (DA1). 7 c. 1 R1VD1VD2 DA1. R4, R5 . , . DD2. . ( DD1.2, DD1.3, DD4) . (DD3) . (DD5) ATMEL AT89C52-24JC : , , . 10 BQ1. 6 10 . ( BF) . 100 c. , . ( 35 DD5 +5). , 5. ( SB1, SB2) . SB1 ("") , SB2 ("") - . , SB1 " ", SB2 " " - 10 . 1 . - LCD- ITM1602ASR 16 . , - . R8 . XS3 . . DA2. 2. 15, 16 - ; 13, 14 - . 7 - 12 - , . 1533 ( - 74ALS). 744040 50 , . . ( F1) ( 4 DD2). = 0=1, START (. 1), . DD4.1 ( 7 DD2) ( 10 DD3). , , 1 ( TW). . DD3 / 1 . ( 5 DAI - LATCH) . = 1, = 1 (DD3) "" ( CP). ( ) շ1048576+ Y4096 + Z , X - 8 / 1 ; Y - 8 / 1 ; Z - (DD3). , / 1 . , , 268435456. . ( F1 F2 ) (DD2). - 0, - 0. DD4.1 ( WR/CM). START (. 1), . DD4.2. DD4.1 DD1.1 ( 7 DD2). ( BF) ( 10 DD3) DD1.1 . DD3 / 1 . DD4.1 . END = 1, = 1 (DD3) ( CP). (շ1048576 +Y4096 + Z)x100
, X - 8 / 1 - ; Y - 8 / 1 - ; Z - DD3; 1 00 - , 100 c. , . = 1, = 0. "" MCS-51. (. 2), (. 3), .
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, DA1, , . = 2CR-l[(R4+R4')/(R4-R4')]. R4' . R4 , ln[(R4+R4')/(R4-R4')] - 0,5, = CR, R = 1 10 , 10 , R = 10 1 10000 . (3000...10000 ), , 10 . 0,5...1 %. R2 (10 ). 1 (F = 1 ). - . . "" "". . 1 . :
( . 5) 1 ...2 .
: T2 = LC/25330, T - , L - , - . , , 25330 , : L = 2 = 1/F2, F - . "" "". 1 . . :
(VT1-VT5), 1, 2 ( 25330 ) , . (VT6, VT7). VD1, VD2 VT4, VT5, VT3. 1, 2 , 1 , 1 . 2 - 700 . , , VT1, VT2 150. 1, 2 - 73-17 . 1...2%. VT5, . 311 30...50. , . . AT89C52-24JC .
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