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Adret Electronique
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3100 B
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Adret Electronique 3100 B User Manual

SYN T H ET IS E UR DE FREQUENCE
FREQUENCY SYNTHESIZER
0, 0 1 Hz/200 kHz
3100 B
ADRET
Schlumberger
12, avenue Vladimir Komarov • B.P. 33 78192 Trappes Cedex • France • Tel. 30.51:29.72
Telefax 30.51.00.74 • Telex AD RFL 697821 F • Siret 679805077-00048 • ( XT Paris 21 797 04
E R R A T A No_j_______________________
Date _ - J UUL 12IU _ 1973 Valid from serial No _1 3 _
_________________________________
------------------------------------------------------------
Date of delivery________________________________________ CONCERNS INSTRUCTIONS MANUAL FOR _ IID Q Bl ANJL QP J1 QWS
Edition. _2 t AQ____________________________________________
Page
or plate
PLATE
VI-7
INSTEAD OF
Q3 : 2N 2219 Q6 : 2N 2905 Q7 : 2N 2219 Q12 : 2N 2905
CR5, CR6, CRll and CR12 : IN 4448
Q3 : BD 135 Q6 : BD 136
Q7 : BD 135 Q12 : BD 136
Trans i st ors BC 184C
whose c ol lector and b a se
READ
PLATE
VI-18
Q15 : 2N 2219 Q16 : 2N 2905
CR9 : IN 4448 CR10 : IN 4448
a r e short-circui ted.
Q15 : BD 135 Q16 : BD 136
T ran si stors BC 184C
whose col l ector and b as e
ar e shor t-circui t ed.
j
|
3 3 0/ 226
S U M M A R Y
Page
CHAPTER I FUNCTIONAL DESCRIPTION
CHAPTER II SPECIFICATIONS
I I - l SPECIFICATIONS OF SYNTHESIZER 3 » B I I - I I I -2 SPECIFICATIONS OF OPTION 3111B II-4 11-3 SPECIFICATIONS OF OPTION 3112B H-5 I I-4 SPECIFICATIONS OF OPTION 3114B II- 6
CHAPTER I I I PRINCIPLE OF OPERATION
I I I - l GENERATOR SYNTHESIZER 3100B H I-1 I I I -2 OPTION 3111B H I-1 111-3 OPTION 3112B H I-2
I I I -4 OPTION 3114B H I-2
CHAPTER IV PRELIMINARY INSTRUCTIONS IV-1 AC LINE CONNECTION IV-1 IV-2 MOUNTING IN 19" RACK IV-1
CHAPTER V OPERATING INSTRUCTIONS V-l EXTERNAL DESCRIPTION V-l V-2 3100B OPERATING INSTRUCTIONS V-l V-2-1 Switching on V-l
V-2-2 Local Mode V-l V-2-3 Remote Mode V-2 V-2-4 Output signals V-3 V-2-5 Reference frequency V-4 V-2-6 Supply voltages output V-5
V-3 3111B OPERATING INSTRUCTIONS V-6 V-3-1 Local Mode V-6
V-3-2 Remote Mode V-6 V-4 3112B OPERATING INSTRUCTIONS V-7
V-4-1 Local Mode V-7 V-4-2 Remote Mode V-8 V-4-3 Output signal V-8
V-5 3114B OPERATING INSTRUCTIONS V-9 V-5-1 Search function V-9
V-5-2 Free-run mode V-10 V-5-3 Triggered mode V-5-4 External mode
v- v-
12 14
- 1 -
CHAPTER VI VI-1 VI-2 VI-3 VI-4 VI-5 VI-6 VI-7 VI-8 VI-9 VI-10 VI-10-1
VI-10-2 VI-10-3
V I-U VI-11-1
CIRCUIT DESCRIPTION
INTRODUCTION CENTADE STANDARD DECADE
TWENTY-INCREMENT UNIT OUTPUT MIXER FUNCTION SWITCH
OUTPUT AMPLIFIER TIME BASE PROGRAMMABLE ATTENUATOR OPTION 3111B PROGRAMMABLE PHASE-SHIFTER OPTION 3112B Digital Phase-Shift
Generation sin <t> / cos <p Output Circu it
SEARCH AND SWEEP OPTION 3114B Sweep
VI-11-2 Interpolation
VI-1 VI-2 VI-5 VI-7 VI-10 VI-11
VI-11 VI-11 VI-12 VI-13 VI-14
VI-14 VI-15
VI-15 VI-16
VI-16
OPTION IEEE BUS OPERATING INSTRUCTIONS
CHAPTER VII MAINTENANCE
CHAPTER V III
PLATES, SCHEMATICS, PARTS LIST
V I-1 8
- 2 -
L IS T O F P L A TE S
Plate I I I - l
V- 1
ate
P P ate V- P ateV-3 OPTION 3111B - FRONT AND REAR-PANEL DESCRIPTION P P P
P ate P ate V P ate P P ate V -5 P P P ate P ate P ate P ate V -11 CODE FILTER P ate P ate P P P ate P P P P
2 3100B - REAR PANEL DESCRIPTION
4
ate V- ateV-5 OPTION 3114B - FRONT AND REAR-PANEL DESCRIPTION ate V-•6 INTERNAL DESCRIPTION
V -1
-2 3111B - 3112B - 3114B BLOCK DIAGRAM V -3 CENTADE V -4 STANDARD DECADE
ate
ate V -6 OUTPUT MIXER ate V -7
-8
V V -9 V -10 SWITCH TRANSCODING
-12 3U POWER SUPPLY
V V -13 PROGRAMMABLE ATTENUATOR (Option 311IB) V -14 SWITCH DECODING (Option 3111B)
ate
V -15
ate
V -16 DIGITAL PHASE-SHIFT (Option 3112B) V -17 GENERATION Sin <j,/Cos <t> (Option 3112B) .
ate
-18 OUTPUT CIRCUIT (Option 3112B)
V
ate
V -19 SWEEP (Option 3114B)
ate
V -20 INTERPOLATION (Option 3114B)
ate
PRINCIPLE OF OPERATION
3100B - FRONT PANEL DESCRIPTION
OPTION 3112B - FRONT AND REAR-PANEL DESCRIPTION
3100B BLOCK DIAGRAM
TWENTY-INCREMENT UNIT
OUTPUT AMPLIFIER TIME BASE ATTENUATOR/FUNCTION SWITCH
CODE FILTER (Options 3111B and 3112B)
I F U N C T I O N A L D E S C R IP T I O N
The 3100B AORET synthesizer is a d ig itally controlled signal generator which delivers all 0.01 Hz
to 200 kHz frequencies with 0.01 Hz resolution.
The synthesized frequency can be either manually dia lle d through eight rotary switches on the
front panel of the instrument (Local mode), or programmed in parallel BCD code through TTL signals sent to the programming connector on the rear panel of the instrument (Remote mode).
Two channels A and B simultaneously deliver two output signals in phase quadrature with 5 n or 50 a impedance and an electromotive force adjustable from 0 to 10 Vpeak. Moreover, the signal delivered by channel A can have the following forms : sine wave, positivd square wave, symmetrical square wave, negative square wave, TTL level square wave.
According to the user's needs, the 3100B generator synthesizer can be fitte d with the following options :
- Option 311IB : progranmable attenuator
This option allows to attenuate one of the output signals of the generator synthesizer from 0 dB to 79.9 dB with 0.1 dB resolution. The attenuation value can be either manually dialled through three
rotary switches in Local mode, or programmed in parallel BCD code through TTL signals in Remote mode.
- Option 3112B : programmable phase-shifter
This option delivers a sinusoidal signal phase-shifted from 0° to 359.9° with regard to the signal of channel A of the 3100B generator synthesizer. The phase-shift value can be eithe r manually dialled through four thumbwheel switches in Local mode, or programmed in pa rallel BCO code through TTL signals in Remote mode. The electrom otive force of the phase-shifted signal is adjustable from 0 to 10 Vpeak with 5 ft or 50 ft output impedance.
- Option 3114B : Search and Sweep
This option allows progressive frequency variation of the generator synthesizer output signals. Four modes of operation are possible depending on the function required :
- Search function
- Free-run Sweep
- Triggered Sweep
- Search or Sweep by external signal
In all cases, twenty-one "birdy" or re ctified markers display the frequency variation achieved.
1-1
II S P ECI FICAT IONS
I I - l SPECIFICATIONS OF SYNTHESIZER 3100B
FREQUENCY
Range : O.Ol Hz to 199 999.99 Hz
Resolution : 0.01 Hz
Selection : with 8 dig its
S ta bility : ± 2.10~5 from 0°C to + 50°C
+ 5.10- ? per day afte r 8 hours'operation.
EXTERNAL REFERENCE
Substitution of the bu ilt-in master oscillator for the external reference.
Frequency : 10 MHz
Level : 50 mVrms to 1 Vrms/50 n.
10 MHz REFERENCE OUTPUT
Level : 100 mVrms/50 fi.
OUTPUT SIGNALS
The synthesized signal is simultaneously available on four diffe rent outputs :
Main output A : Provides sine wave, positive , negative , symmetrical or
TTL square wave.
Main output B : Sine wave, phase-shifted from + 90° with respect to the outputs A wave. A u x ilia r y o u tput A : sine wave.
A u x ilia r y o utpu t B : sine wave, phase-shifted from + 90° with respect to the outputs A wave.
MAIN OUTPUT A
Provides sine wave, positive, negative, symmetrical or TTL square wave.
• Square waves rise and f a ll time : 100 ns
• Square waves duty cycle : 50 % + 2 %
Output level :
• Sine wave :
e.m.f. variable : 0 V to 10 V peak e.m.f. calibrated : 7 V peak + 5 %
• Positive or negative square wave : e.m.f. variable : 0 V to 10 Vp-p e.m .f. calibrated : 7 Vp-p ± 5 %
II-l
• Symmetrical square wave :
e.m.f. variable : 0 V to 10 V peak
e.m .f. calibrated : 7 V peak ± 5 %
• TTL square waves :
e.m.f. calibrated : 3.8 V p-p ± 5 %
Output level flatness : + 3 % within the entire frequency range. Output impedance : 50 n or 5 n Output current : maximum 100 mA peak Output level attenuation (50
• Dynamic range : 70 dB
• Resolution : 10 dB
• Accuracy : + 0.5 dB
MAIN OUTPUT B
Sine wave with 90° phase-shift from main output signal.
Phase-shift accuracy with respect to main output sine wave with calibrated e.m .f. : + 0.5°
Output level :
• e.m .f. variable : 0 V to 10 V peak
• e.m .f. calibrated : 7 V peak + 5 % Output level flatness : ± 3 % within the entire frequency range.
Output impedance : 50 n or 5 a
Output current : maximum 100 mA peak
AUXILIARY OUTPUT A
Sine wave in phase with main output A.
n impedance) :
Output level : 2 Vpeak e.m .f. Load impedance : 1 kft minimum
AUXILIARY OUTPUT B
Sine wave with 90° phase-shift from signal of auxiliary output A. Output level : 2 Vpeak e.m .f. Load impedance : 1 kft minimum
SPECTRAL PURITY
(measured on main outputs with calibrated e.m .f. and 50 fl impedance)
Sine wave harmonic signals : - 50 dB Non-harmonic signals : - .70 dB
Phase noise in a 1 Hz band :
- 110 dB at 100 Hz from carrier
- 115 dB at 1 kHz from c arrie r
- 125 dB at 10 kHz from carrie r.
11-2
FREQUENCY PROGRAMMING
Selection of the Local or Remote mode is achieved eith er through a front-panel switch or through
a rear-panel programming connector, with prio rity for the Remote mode.
• Current-source positive TTL logic :
"1" level : + 2 V to + 5 V/0.1 mA "0" level : 0 V to + 0.4 V/0.2 mA
• 1-2-4-8 parallel BCD code
• Resolution : 0.01 Hz
• Settling times :
Digits affected by
frequency switching
The above-mentioned settling times depend, only on the weight of the digits affected by frequency switching.
POWER REQUIREMENTS
Voltage : 115 V/230 V (+ 10 %) Frequency : 50 Hz to 400 Hz Consumption : 40 VA
105 Hz
to 103 Hz
Less than
or equal to
102 Hz
Settling time at 100 Hz
from fina l frequency
0.5 ms
Frequency error less than 1 Hz
afte r 1 ms
Settling time at 10 Hz
from fin al frequency
1 ms
MECHANICAL DATA
Adaptable to 19" rack Height : 132 mm (3U) Width : 440 mm Overall depth : 452 mm Weight : 10 kg to 12 kg according to options.
TEMPERATURE RANGE
Operation : 0°C to + 50°C Storage : - 20°C to + 70°C
11-3
11-2 S P E C IF I CA T IO N S OF O P T I O N 31 1 1 B
ATTENUATION
Dynamic range : 79.9 dB Resolution : 0.1 dB Selection : by 3 rotary switches Characteristic impedance : 50 n Accuracy :
• 0.1 dB steps : + 0.05 dB
• 1 dB steps : + 0.1 dB
• 10 dB steps : + 0.2 dB
• Maximum error : ± 1 dB
MAXIMUM PHASE-SHIFT
PROGRAMMING
• • Current-source positive TTL logic :
"1"
level : +
"0"
level
• 1-2-4-8 parallel BCD code
• Resolution : 0.1 dB « Switching time : 3 ms
2 V
: 0 V
to + 5
to
+ 0.4 V/ 0.2
V/0.1
mA
mA
11-3 S P E C I FI CAT IO N S O F O P T I O N 3 1 1 2 B
PHASE-SHIFT
Range : 0° to 359.9° Resolution : 0.1° Selection : by 4 thumbwheel switches
Phase-shift accuracy : measured with respect to the main output A sine wave, with calibrated e.m .f. and 50 fi impedance.
• Linearity : + 1°
• Phase/frequency response : + 1°
• Phase/temperature response : + 0.025 degree/°C
OUTPUT LEVEL
Waveform : sine wave Output level :
• e.m .f. variable : 0 V to 10 Vpeak
• e.m.f. calibrated : 7 V peak + 5 %
»
Output level flatness : + 3 % within the entire frequency range Output impedance : 50 n or 5 n Output current : maximum 100 mA peak
SPECTRAL PURITY
(measured with calibrated e.m .f. and 50 n impedance)
Harmonic signals : - 45 dB Non-harmonic signals : - 65 dB
Phase-noise in a 1 Hz band :
- 110 dB at 100 Hz from carrier
- 115 dB at 1 kHz from carrier
PHASE-SHIFT PROGRAMMING
• Current-source positive TTL logic :
“1" level : + 2 V to + 5 V/0.1 mA "0" level : 0 V to + 0.4 V/ 0.2 mA
• 1-2-4-8 parallel BCD code
• Resolution : 0.1°
• Switching time : 20 ms
11-5
11-4 SP ECIFI CA TIO NS O F OPTION 3 114 B
OP E R A T I N G MODES
Manual mode : Continuous adjustment o f the Synthesizer output frequency (Search fu nctio n ). Free-run mode : Sweep by symmetrical triangula r wave. Triggered mode : Sawtooth sweep. External mode : Sweep by external voltage.
MANUAL MODE (S earch fu n c tio n )
Ranges : + 1 Hz, + 10 Hz, + 100 Hz, + 1 kHz, + 10 kHz.
• Search range d isp lay by LED indicators on the 3100B Mainframe.
• Continuous adjustment by ten-turn potentiometer of the Synthesizer output frequency around the frequency set on the switches located on the le ft of Search range indicator.
• Frequency interpo lation display on + 1, 0, - 1 graduated scale. Resolution : + 2 %
Inte rp ola tion o scilla to r output :
On rear-panel BNC connector : 5 MHz + 1 MHz fo r + 100 % of the Search range.
• Level : approximately 200 mVrms/50 n
• Interp o lation o s c illa to r centering by front-panel s p lit-s ha ft potentiom eter.
• S ta b ility : + 10_3/10 mn
FR E E - R U N OR T RI G GER ED MODE
Ranges : ± 1 Hz, + 10 Hz, + 100 Hz, + 1 kHz, + 10 kHz.
• Dispersion range displa y by LED indicators on the 3100B Mainframe.
• Continuous dispersion adjustment by ten-turn potentiom eter, with display on + 1, 0, - 1 graduated scale.
Resolution : + 2 %
Inte rp olation o s c illa to r output : On rear-panel BNC connector : 5 MHz + 1 MHz fo r + 100 % of the dispersion range.
• Level : approxim ately 200 mVrms/50 n
• In terpola tion o sc illa to r centering by front-panel s p lit-s ha ft potentiom eter.
• S ta b ility : + 10_3 /10 mn
Sweep
• Duration : 10 ms to 300 s
• In trigg ered mode, S tart/Stop controls by pushbutton on front-panel or "0" passing level on rear-pan el.
• Sweep signal output : Ampl itude : + 5 V
Minimal load : 1 kn
11-6
EXTERNAL MODE
Ranges : + 1 Hz, ^ 10 Hz, +_ 100 Hz, +_ 1 k H z.'i 10 kHz.
• Dispersion range display by LED indicators on the 3100B Mainframe.
• Continuous dispersion adjustment by potentiometer within the selected dispersion range.
Sweep input
• 0.5 dB bandwidth : DC to 1 kHz
• Input impedance : 10 kn
• Sens itivity : + 5 V for the entire dispersion range
• Linearity :
MARKERS
• Three markers indicating the center frequency and the extreme frequencies of the dispersion
• 18 intermediate markers
• Space between two markers : 10 % of the dispersion range
Interpolation oscillato r output :
On rear-panel BNC connector : 5 MHz + 1 MHz for + 100 % of the dispersion range.
• Level : approximately 200 mVrms/50 n
• Interpolation osc illator calibration by front-panel s plit-sh a ft potentiometer
• Stab ility : + 10~3/10 mn
In Free-run or Triggered mode, as well as in External mode, two types of markers are available
"BIRDY" MARKERS :
range. Amplitude : about 500 mVp-p/50 n
Amplitude : about 100 mVp-p/50 a
RECTIFIED MARKERS :
• 3 markers indicating the center frequency and the extreme frequencies the dispersion range.
Amplitude : about 500 mV peak
• 18 intermediate markers
Amplitude : about 100 mV peak
• Space between two markers :
10 % of the dispersion range
• Minimal load : 1 kn
11-7
Ill P RIN CIP LE O F O P E RATI ON
I I I- l GENERATOR SYNTHESIZER 3100B
The operation of the 3100B ADRET generator synthesizer is based on indirect frequency synthesis,
which uses the phase-locking of an oscillator to a reference frequency by means of a programmable d iv i
sion rate counter.
The elaboration of the synthesizer output frequency is ite rative ly achieved through six sub-
assemblies, as shown in the block-diagram of plate 111-1.
- The Centade elaborates the 10'2 Hz and 10'1 Hz increments of the output frequency ;
- Four Standard Decades successively generate the 10^ Hz, 10* Hz and 103 Hz increments of the
output frequency ;
- The Twenty-Increment unit elaborates the ten 10^ Hz increments and the two 10^ Hz increments
of the output frequency.
The frequency increments generated in each subassembly are incorporated in the following sub
assembly where they are divided by 10.
Thus, the Centade delivers a FI frequency variable from 2 MHz to 1.901 MHz in 1 kHz and 10 kHz steps representing the 10-2 Hz and 10_* Hz increments of the output frequency. This FI frequency is sent to the firs t Standard Decade where it is added to the frequency carrying the 10° Hz increments of the output frequency and afterwards divided by 10.
This process provides a F2 frequency variable from 2 MHz to 1.9001 MHz in 100 Hz, 1 kHz and
10 kHz steps representing respectively the 10~2 Hz, 10- 1 Hz and 10^ Hz increments of the output frequency
of the generator synthesizer.
The same method of operation is used in the other three Standard Decades and in the Twenty-Incre ment unit as well, where frequency F6 variable from 8 MHz to 7.200 000 04 MHz in 0.04 Hz steps is issued
from, carrying all the increments of the output frequency.
This frequency F6 is divided by 4 in the Output Mixer through a counter providing two signals in
phase quadrature. Two substractive mixing c ircuits receiving frequency F ll : 2 MHz issued from the Time
Base serve to obtain two signals in phase quadrature, the frequency of which varies from 0.01 Hz to
199.999 99 kHz in 0.01 Hz steps. A fter amplification and shaping (channel A), these signals constitute
the A and B outputs of the generator synthesizer.
I l l -2 OPTION 311 IB
The 3111B programmable attenuator consists of ten attenuating cells controlled by a transcoder
circu it which permits the parallel BCD programming.
III-l
111-3 O P T I O N 3 1 1 2B
The generation of the sine wave phase-shifted from 0° to 359.9° which is delivered by the 3112B programmable phase-shifter is achieved by multiplying the sine waves issued from channels A and B of the Output Mixer by two DC voltages representing the cosine and the sine of the $ phase-shift angle, and then by adding the signals obtained according to the following formula :
sin (ut + *) = cos if. sin ut + sin <f>. cos <nt
The DC voltages representing cos 4> and sin 4 1 are elaborated through 3 kHz frequency TTL signals generated by a Digital Phase-Shift subassembly.
111-4 OPTION 3114 B
The 3114B Search and Sweep option delivers a F12 frequency variable from 2.1 MHz to 1.9 MHz, which
is substituted fo r one of frequencies FI to F5, so as to permit continuous variatio n of the synthesizer
output frequency within the selected interpolation range. The twenty-one markers spaced every 10 % of the
interpolation range are generated by frequency beat between the interpolation o s cilla to r frequency and a reference signal derived from the Time Base.
111-2
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