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Hytec Electronics ADC 520, Руководство пользователя

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Hytec Electronics ADC 520 Скачать руководство пользователя страница 10

 

 

 

 

 

 

 

 

    Doc:    UM0520 

 

 

 

 

 

 

 

 

    Issue:  3.0 

 

 

 

 

 

 

 

 

    Date:   07/01/2002 

 

 

 

 

 

 

 

 

    Page:   9/9 

 

 

 

 

 

 

 

 

    Author: PJM 

 

 

 
 
PARTS LIST (cont.) 
 
 
200R Preset 

 

8 

 

RV5 - RV12 inc. 

10K  Preset 

 

4 

 

RV1 - RV4 inc. 

20K  Preset 

 

4 

 

RV13 - RV16 inc. 

 

SOT (Special) 

8 

 

R17 - R20 inc., R37 - R40 inc. 

 
47pF cer. 

 

4 

 

C31 - C34 inc. 

82pF cer. 

 

4 

 

C15 - C18 inc. 

220pF cer. 

 

1 

 

C29 

1n0 cer. 

 

1 

 

C30 

100nF cer.     

20 

 

C19 - C22 inc., C23 - C26 inc. 

 

 

 

 

 

and all decouplers "C". 

1uF 35V tant. 

4 

 

C3 - C6 inc. 

15uF 16V tant. 

2 

 

C27, C28 

100uF 6V tant. 

2 

 

C1, C2 

 
SOT *** 

 

8 

 

C7 - C14 inc. 

 
Fuse 1A 

 

2 

 

FS2, FS3 

Fuse 2A 

 

1 

 

FS1 

 
Note 1: 

The type of ADC chip fitted depends on the 

 

 

type/grade of module ordered as follows:- 

 
Standard units : 25 uSec. conversion - ADC chip is ADC574K 
Fast units (F) : 15 uSec. conversion - ADC chip is ADC674K 
Extra Fast (EF): 10 uSec. conversion - ADC chip is ADC774K 
 
*** 

Extra "Select-on-Test" components which may be added to 

 

special order. 

 

Содержание ADC 520

Страница 1: ...520 521 FAST 1 TO 4 CHANNEL 12 BIT ADC CAMAC MODULE WITH OPTIONAL COMPARATOR AND SWITCHED GAIN ADC 521 HYTEC ELECTRONICS LTD 5 CRADOCK ROAD READING RG2 0JT U K Doc UM0520 Issue 3 0 Date 07 01 2002 Author PJM ...

Страница 2: ...uction 2 CAMAC Command Set 3 Configuration Links 4 Operating Modes 4 1 Continuous Mode 4 1 1 Internal Triggering 4 1 2 External Triggering 4 2 Non continuous or Comparator Mode 4 3 Test Mode 5 Control Register 6 Data Format 7 Getting Started 8 Power requirements 9 Parts List ...

Страница 3: ... completed whereupon it can stop or carry on performing conversions depending on the state of Greater than or Less than flags allowing experiments like stress strain plotting to be achieved very easily The Fast version of this unit the ADC520F has a conversion time of 15 microseconds a slightly slower standard version is available with a maximum conversion time of 25uS as well as an even faster ve...

Страница 4: ...ad ch 4 data X 1 Q 1 if Data Ready only if fitted F 1 A 0 Read Control Register X 1 Q 1 F 8 A 15 Test LAM X 1 Q LAM F 16 A 0 Write Comparator X 1 Q Accepted Data Ready only if fitted This command F 16 A 0 also loads the gain control bits for the alternative use of the comparator register in the ADC 521 Bit W1 corresponds to Channel 1 W2 Channel 2 etc F 16 A 15 Write Test Mode Data X 1 Q 1 into all...

Страница 5: ...4 not fitted LK 12 in Channel 3 not fitted LK 11 in Channel 2 not fitted Other Links LK 1 to 4 Select UNIPOLAR or BIPOLAR for corresponding channel LK1 CH 1 A B BIPOLAR A C UNIPOLAR LK 5 to 8 Select input span for each channel LK5 CH1 A B 20V SPAN Note Not in Unipolar Mode A C 10V SPAN LK 9 Select Test Retrigger Mode Hytec use only do not fit LK 10 Select Int Ext Trigger input A B Internal Retrigg...

Страница 6: ... The Trigger Input is TTL compatible pulled up to 5V by a 1K resistor After this conversion the results are stored in the Data Registers and the Data Ready Flag is set The Data is then read out finishing with the chosen Restart Command which resets the Data Ready Flag The unit will now accept a new Trigger Input pulse The input Sample and Hold circuits go into SAMPLE mode as soon as the conversion...

Страница 7: ...s 4 writeable bits and 6 readable bits 6 5 4 3 2 1 STOP F R1 R0 CONT G L R0 and R1 select the Restart Command as follows R1 R0 Restart Command 0 0 F 16 A 0 0 1 F 0 A 0 1 0 F 0 A 1 1 1 F 0 A 3 Note that F 0 A 2 is not available as a restart command since a 3 channel ADC is not offered CONT selects Continuous or Comparator Mode CONT 1 CONTINUOUS CONT 0 COMPARATOR G L Selects whether the comparator i...

Страница 8: ...C unit like this with its Special Control Register functions actually getting it to start doing what you want can be quite tricky Follow these rules Decide the Operating Mode Restart Command etc and load the Control Register with F 17 A 0 This command is accepted at any time If you choose Comparator Mode start by selecting Greater Than whereupon the Flag will immediately be set because the Compara...

Страница 9: ...C2 IC3 7405 1 IC7 7437 1 IC16 PLS100 1 IC9 Version 4 on socket HA5320 5 4 IC48 IC49 IC50 IC51 ADC674K 4 IC44 IC45 IC46 IC47 See Note 1 on page 9 about ADC chip types for each module type Note On 1 or 2 channel units unused channels will not be equipped with S H HA5320 5 ADC or data register LS652 chips 7815 1 VREG 12 V Reg 7915 1 VREG 12 V Reg Front panel Discrete Semiconductors 1N5401 1 D1 1N4148...

Страница 10: ...C19 C22 inc C23 C26 inc and all decouplers C 1uF 35V tant 4 C3 C6 inc 15uF 16V tant 2 C27 C28 100uF 6V tant 2 C1 C2 SOT 8 C7 C14 inc Fuse 1A 2 FS2 FS3 Fuse 2A 1 FS1 Note 1 The type of ADC chip fitted depends on the type grade of module ordered as follows Standard units 25 uSec conversion ADC chip is ADC574K Fast units F 15 uSec conversion ADC chip is ADC674K Extra Fast EF 10 uSec conversion ADC ch...

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