DC505A: Difference between revisions

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#redirect [[DC505]]
{{TM500 | mfg=Tektronix | type=DC505A | function=225 MHz counter/timer | class=counter | image=Tek dc505a.jpg | introduced=1976 | discontinued=1981 |
|manuals=
* [[Media:070-1984-00.pdf|Tektronix DC505A Manual]] (OCR)
}}
{{BeginSpecs}}
{{Spec | Frequency range | 0 Hz (DC coupled) / 10 Hz (AC coupled) to 225 MHz }}
{{Spec | Sensitivity    | 50 mV<sub>RMS</sub> to 150 MHz, 100 mV<sub>RMS</sub> to 225 MHz (sine) }}
{{Spec | Resolution      | 7 digits }}
{{Spec | Gate time      | 0.01 s to 10 s in decade steps }}
{{Spec | Stability      | Standard: 1×10<sup>−5</sup>; Opt.1: 5×10<sup>−7</sup> (0°C to +50°C, after 30 min warm-up) }}
{{Spec | Long-term drift | Standard: 1×10<sup>−5</sup> per month; Opt.1: 5×10<sup>−7</sup> per month }}
{{Spec | Features        |
* Two input channels (BNC connectors)
* Functions: Frequency, frequency ratio, period, interval, pulse width, events
}}
{{Spec | Options |
* Opt.1: 5 MHz TCXO (with ÷5 divider)
* Opt.4: Decimal point output on rear interface (for use with [[153]] interface)
}}
{{EndSpecs}}


[[Category:Introduced in 1976]]
==Links==
{{Documents|Link=DC505A}}
 
 
==Rear Interface==
<small>
{| class="wikitable"
|-
! Connector Pin
! Signal
! Connector Pin
! Signal
|-
| 27B  ||  DP5 (Opt.4 only) || 27A      || Internal Scan Clock Disable
|-
| 26B      || Manual Start-Stop  || 26A      || /RESET
|-
| 25B  || Internal Scan Clock Out  || 25A      || Time Slot Zero
|-
| 24B  || Internal Scan Clock Out  ||  || 
|-
| 23B      || Overflow  ||  ||
|-
|      ||  || 22A  ||  Trig Level Out
|-
| 21B      || BCD output 2  ||  ||
|-
| 20B      || BCD output 8 || 20A      || BCD output 4
|-
| 19B      || Data Good  || 19A      || BCD output 1
|-
| 18B    || DP4 (Opt.4 only)  ||  ||
|-
| 17B    ||  Ch B Input  ||  17A  ||  Ch A GND
|-
| 16B    ||  Ch B GND    ||  16A  ||  Ch A Input
|-
| 15B    || DP3 (Opt.4 only)  ||  15A      || DP1 (Opt.4 only)
|-
| 14B    || DP2 (Opt.4 only)  ||  14A      || Ext Clock Input / 1 MHz Out
|}
</small>
Data is output serially by digit.
 
==Pictures==
<gallery>
Tek dc505a.jpg | DC505A
</gallery>
 
==Components==
{{Parts|DC505}}
{{Parts|DC505A}}

Revision as of 06:12, 21 November 2023

Tektronix DC505A
225 MHz counter/timer
Tektronix DC505A

Produced from 1976 to 1981

Manuals
(All manuals in PDF format unless noted otherwise)
Manuals – Specifications – Links – Pictures

The Tektronix DC505A is a 225 MHz counter/timer plug-in for the TM500 system.

Key Specifications

Frequency range 0 Hz (DC coupled) / 10 Hz (AC coupled) to 225 MHz
Sensitivity 50 mVRMS to 150 MHz, 100 mVRMS to 225 MHz (sine)
Resolution 7 digits
Gate time 0.01 s to 10 s in decade steps
Stability Standard: 1×10−5; Opt.1: 5×10−7 (0°C to +50°C, after 30 min warm-up)
Long-term drift Standard: 1×10−5 per month; Opt.1: 5×10−7 per month
Features
  • Two input channels (BNC connectors)
  • Functions: Frequency, frequency ratio, period, interval, pulse width, events
Options
  • Opt.1: 5 MHz TCXO (with ÷5 divider)
  • Opt.4: Decimal point output on rear interface (for use with 153 interface)

Links

Documents Referencing DC505A

Document Class Title Authors Year Links
070-2088-00.pdf Book TM500 Series Rear Interface Data Book 1975 AF501 • AM501 • AM502 • DC501 • DC502 • DC503 • DC504 • DC505 • DC505A • DM501 • DM502 • FG501 • FG502 • FG503 • MR501 • PG501 • PG502 • PG505 • PG506 • PG508 • PS501 • PS502 • PS503 • PS503A • PS505 • RG501 • SC501 • SC502 • SG502 • SG503 • TG501
070-2088-01.pdf Book TM500 Series Rear Interface Data Book 1976 AF501 • AM501 • AM502 • AM511 • DC501 • DC502 • DC503 • DC504 • DC505 • DC505A • DD501 • DM501 • DM502 • FG501 • FG502 • FG503 • FG504 • LA501 • MR501 • PG501 • PG502 • PG505 • PG506 • PG508 • PS501 • PS502 • PS503 • PS503A • PS505 • RG501 • SC501 • SC502 • SG502 • SG503 • SG504 • SW503 • TG501 • TR501 • TR502
Tekscope 1977 V9 N1.pdf Article Counter and Oscilloscope Combination Makes Difficult Measurements Emory Harry 1977 DC505A • 7B53A • 7A18 • 7603
070-2088-04.pdf Book TM500 Series Rear Interface Data Book 1985 AA501 • AF501 • AM501 • AM502 • AM503 • AM511 • DC501 • DC502 • DC503 • DC503A • DC504 • DC505 • DC505A • DC508 • DC508A • DC509 • DC510 • DC5009 • DC5010 • DD501 • DL502 • DM501 • DM501A • DM502 • DM502A • DM505 • DM5010 • FG501 • FG501A • FG502 • FG503 • FG504 • FG507 • FG5010 • LA501 • LA501W • WR501 • MR501 • PG501 • PG502 • PG505 • PG506 • PG507 • PG508 • PS501 • PS502 • PS503 • PS503A • PS505 • PS5010 • RG501 • SC501 • SC502 • SC503 • SC504 • SG502 • SG503 • SG504 • SG505 • SW503 • TG501 • TR501 • TR502 • MI5010 • MX5010 • SI5010


Rear Interface

Connector Pin Signal Connector Pin Signal
27B DP5 (Opt.4 only) 27A Internal Scan Clock Disable
26B Manual Start-Stop 26A /RESET
25B Internal Scan Clock Out 25A Time Slot Zero
24B Internal Scan Clock Out
23B Overflow
22A Trig Level Out
21B BCD output 2
20B BCD output 8 20A BCD output 4
19B Data Good 19A BCD output 1
18B DP4 (Opt.4 only)
17B Ch B Input 17A Ch A GND
16B Ch B GND 16A Ch A Input
15B DP3 (Opt.4 only) 15A DP1 (Opt.4 only)
14B DP2 (Opt.4 only) 14A Ext Clock Input / 1 MHz Out

Data is output serially by digit.

Pictures

  • DC505A

    DC505A

Components

Some Parts Used in the DC505

Part Part Number(s) Class Description Used in
2N4249 151-0342-00 Discrete component PNP Si low noise amp. DC501 • DC502 • DC503 • DC503A • DC504 • DC504A • DC505 • DC505A • DC508 • DC508A • DC509 • DC510
Mostek MK5007 156-0409-00 Monolithic integrated circuit four-decade BCD counter with latches and output multiplexer 213 • DC505 • DC505A


Some Parts Used in the DC505A

Part Part Number(s) Class Description Used in
2N4249 151-0342-00 Discrete component PNP Si low noise amp. DC501 • DC502 • DC503 • DC503A • DC504 • DC504A • DC505 • DC505A • DC508 • DC508A • DC509 • DC510
Mostek MK5007 156-0409-00 Monolithic integrated circuit four-decade BCD counter with latches and output multiplexer 213 • DC505 • DC505A
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