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{{TM500 |
{{TM500
mfg=Tektronix |
|mfg=Tektronix
type=DC509 |
|class=counter
function=135 MHz programmable frequency counter |
|type=DC509
class=counter |
|function=135 MHz programmable frequency counter
image=dc509-front.jpg |
|image=dc509-front.jpg
introduced=1981 |
|introduced=1981
discontinued=(?) |
|discontinued=(?)
designers= |manuals=
||manuals=
* [[Media:070-3464-00.pdf|Tektronix DC509 Manual (PDF)]]
* [[Media:070-3464-00.pdf|Tektronix DC509 Manual]]
<small>
<small>
'''Modifications'''
'''Modifications'''
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An R6504 microprocessor (28-pin variant of a [[MOS Technology 6502|6502]] with 8K addressable memory) performs the calculations.
An R6504 microprocessor (28-pin variant of a [[MOS Technology 6502|6502]] with 8K addressable memory) performs the calculations.


Opt.01 is an OCXO for improved stability.
Opt.01 is an [[wikipedia:Crystal oven|OCXO]] for improved stability.
{{BeginSpecs}}
{{BeginSpecs}}
{{Spec|Resolution      | 8 digits}}
{{Spec | Frequency | ≤100 μHz to ≥135 MHz (Ch B in Ratio: ≥125 MHz) }}
{{Spec | Frequency | ≤100 μHz to ≥135 MHz (Ch B in Ratio: ≥125 MHz) }}
{{Spec | Time A-B | ≤15 ns to ≥3.05 hours }}
{{Spec | Time A-B | ≤15 ns to ≥3.05 hours }}
{{Spec | Single shot resolution | 10 ns }}
{{Spec | Single shot resolution | 10 ns }}
{{Spec | Totalize | 2<sup>40</sup counts (1.09 × 10<sup>12</sup>) }}
{{Spec | Totalize | 2<sup>40</sup> counts (1.09 × 10<sup>12</sup>) }}
{{SpecGroup | Standard time base }}
{{SpecGroup | Standard time base }}
{{Spec | Frequency | 10 MHz ± 1 × 10<sup>-7</sup> at cal }}
{{Spec | Frequency | 10 MHz ± 1 × 10<sup>-7</sup> at cal }}
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==Links==
==Links==
 
{{Documents|Link=DC509}}
* [[Media:Tekscope 1981 V13 N1.pdf  | TekScope Vol. 13 No. 1, Mar 1981]] New Products


==Rear interface==
==Rear interface==
<small>
<small>
* 14A Ext Clock in (1, 5 or 10 MHz, ≥3 V into 1 kΩ)
{|
* 14B Prescale; when low, counter divides readout by 16
|-
* 15B 10 MHz clock out (GND return on 15A)
|28B − Gate Out (TTL, active high)            || 27B − Arming in GND
* 16A − CH A input (50 Ω, ≤10 V<sub>RMS</sub>) (GND return on 17A)
|-
* 17B − CH B input (50 Ω, ≤10 V<sub>RMS</sub>) (GND return on 16B)
|27B                                          || 27A Arming in (TTL, active high)
* 22A − Trig Level CH A
|-
* 22B Trig Level CH B
|26B − Remote Start                          || 26A Reset in (active low)
* 23A Shaped Out A (GND return on 23B)
|-
* 24B − Shaped Out B (GND return on 24A)
|25B
* 26A Reset in (active low)
|-
* 26B Remote Start
|24B − Shaped Out B                          || Shaped Out B GND
* 27A − Arming in (TTL, active high) (GND return in 28A)
|-
* 28B − Gate Out (TTL, active high)
|23B Shaped Out A GND                       || Shaped Out A
|-
|22B − Trig Level CH B                        || 22A Trig Level CH A
|-
|21B
|-
|20B
|-
|19B
|-
|18B
|-
|17B − CH B input (50 Ω, ≤10 V<sub>RMS</sub>) || 17A − CH A input GND
|-
|16B − CH B input GND                        || 16A − CH A input (50 Ω, ≤10 V<sub>RMS</sub>)
|-
|15B 10 MHz clock out                      || 15A 10 MHz clock out GND
|-
|14B Prescale; when low, counter divides readout by 16 || 14A External clock Input
|-
|}
</small>
</small>
==Firmware (uploaded BIN files)==
==Firmware (uploaded BIN files)==
* [[Media:160-1076-02.bin|160-1076-02.bin]] U1312 DC5009
* [[Media:160-1076-02.bin|160-1076-02.bin]] U1312 DC5009
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* [[Media:160-1092-02.bin|160-1092-02.bin]] U1201 DC5009
* [[Media:160-1092-02.bin|160-1092-02.bin]] U1201 DC5009


==Photos==
==Pictures==
<gallery>
<gallery>
Tek DC509 front.JPG |(Labels GHz, MHz, kHz, Hz have been reprinted)
Tek DC509 left.JPG
Tek DC509 right.jpg
Tek dc509 1.jpg
Tek dc509 1.jpg
Tek dc509 2.jpg
Tek dc509 2.jpg
Line 73: Line 97:
Tek dc509 10.jpg
Tek dc509 10.jpg
</gallery>
</gallery>
==Components==
{{Parts|DC509}}

Latest revision as of 10:18, 6 December 2023

Tektronix DC509
135 MHz programmable frequency counter
Tektronix DC509

Produced from 1981 to (?)

Manuals

Modifications

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

The Tektronix DC509 is a 135 MHz programmable frequency counter plug-in for the TM500 system.

It is internally similar to the DC5009 to which it could be converted through an upgrade kit.

The DC509 uses reciprocal counting with an internal 100 MHz clock phase-locked to the reference oscillator. An R6504 microprocessor (28-pin variant of a 6502 with 8K addressable memory) performs the calculations.

Opt.01 is an OCXO for improved stability.

Key Specifications

Resolution 8 digits
Frequency ≤100 μHz to ≥135 MHz (Ch B in Ratio: ≥125 MHz)
Time A-B ≤15 ns to ≥3.05 hours
Single shot resolution 10 ns
Totalize 240 counts (1.09 × 1012)
     — Standard time base
Frequency 10 MHz ± 1 × 10-7 at cal
Error ≤ ±5 × 10-6 from 0 °C to +50 °C
Aging ≤ ±1 × 10-6 per year
     — Opt.01 OCXO time base
Frequency 10 MHz ± 2 × 10-8 at cal
Error ≤ ±2 × 10-7 from 0 °C to +50 °C (after oven warm-up)
Aging ≤ ±1 × 10-8 per day

Links

Documents Referencing DC509

Document Class Title Authors Year Links
Tekscope 1981 V13 N1.pdf Article New Products 1981
070-2088-04.pdf Book TM500 Series Rear Interface Data Book 1985

Rear interface

28B − Gate Out (TTL, active high) 27B − Arming in GND
27B 27A − Arming in (TTL, active high)
26B − Remote Start 26A − Reset in (active low)
25B
24B − Shaped Out B Shaped Out B GND
23B − Shaped Out A GND Shaped Out A
22B − Trig Level CH B 22A − Trig Level CH A
21B
20B
19B
18B
17B − CH B input (50 Ω, ≤10 VRMS) 17A − CH A input GND
16B − CH B input GND 16A − CH A input (50 Ω, ≤10 VRMS)
15B − 10 MHz clock out 15A − 10 MHz clock out GND
14B − Prescale; when low, counter divides readout by 16 14A − External clock Input

Firmware (uploaded BIN files)

Pictures

Components

Some Parts Used in the DC509

Part Part Number(s) Class Description Used in
148-0128-00 148-0128-00 Discrete component miniature magnetic latching relay armature DC509 DC5009 SG5030
2N4249 151-0342-00 Discrete component PNP Si low noise amp. DC501 DC502 DC503 DC503A DC504 DC504A DC505 DC505A DC508 DC508A DC509 DC510
Rockwell R6504 156-1482-00 Monolithic integrated circuit 8-bit microprocessor DC509 DC5009
Rockwell R6531 156-1530-00 Monolithic integrated circuit ROM-RAM-I/O-Counter (RRIOC) DC509