1
Operating Manual
2
3
Table of Content
1. Introduction 4
1.1 General 4
1.2 Key Features 4
1.3
Physical Description
5
1.4 Specification 7
2.
Operation
11
2.1 Keypad and Knob Description 11
2.2 Opening Screen 13
2.3 Setting Group Name 13
2.4 Adjust Frequency 14
2.5 Select Waveform 14
2.6 Frequency Sweep 15
2.7
Output Attenuation
18
2.8 Rotary Frequency Step Setting 19
2.9 Amplitude, Offset and Square Wave Pulse Width Display 20
2.10 Trigger/Gate 21
2.11 Phase-Shift Keying (PSK) and Frequency-Shift Keying (FSK) Modulation 22
2.12 Sub Function 24
2.13 Notice of Operating 28
4
1. Introduction
1.1 General
The PeakTech® 1007 / 1014 / 1016 series is a high-performance direct digital synthesize (DDS)
function generator with very low noise and distortion. Combined with the DDS technology, the
FG700S/F series can output high accuracy and stable frequency to meet your test requirement
of precision and accuracy. The build-in trigger/gate function allows you to control the waveform
generation by internal or external. Also, the PSK and FSK modulation gives you the ability to
generate such waveform for experiment or communication purpose. The FG700F series comes
with AM/FM module and frequency counter to make the function of this product more
comprehensive.
1.2 Key Features
•
Direct digital synthesize multi-function generator
•
Sine, square, triangle, pulse, DC, synchronize and ramp up/ramp down output
(only P 1014 / 1016)
•
Ultra low noise and low distortion (down to 1mV peak signal)
•
PSK and FSK modulation
• Digital setting of linear or logarithm sweep function
•
Trigger and gate function
•
AM/FM module (only P 1014 / 1016)
•
Frequency counter (only P 1014 / 1016)
5
1.3 Physical Description
PeakTech
®
1007 Front Panel
6
PeakTech
®
1014 / 1016 Front Panel
Rear Panel
7
1 Liquid Crystal Display 13 Square Wave Pulse Width Adjustment
Knob
2 Keypad 14 Sync Output Connector (TTL level with
50Ω output impedance)
3 Square Wave Pulse Width
Adjustment On/Off Indicator
15 Power Switch
4 Output Offset On/Off Indicator 16 Adjustable Feet
5 Output Amplitude Attenuation Range
Indicator
17 Air Ventilation Holes
6 External/Internal indicator of
Trigger/Gate or PSK/FSK
18 Power-line Fuse Holder
7 Rotary with Push Button 19 Power-line AC Input Socket
8 Handle 20 Chassis Terminal
9 Function Output BNC Connector
(50Ω output impedance)
21 Protective Earth (Ground) Terminal
10 External input BNC Connector for
Trigger/Gate and PSK/FSK
(CMOS level)
22 External Modulation Input (5.5Vp Max.)
for AM/FM Function
11 Amplitude Adjustment Knob 23 External Frequency Input (5Vrms Max.
@ 50Ω) for Frequency Counter Function
12 DC/Offset Adjustment Knob 24 Internal AM/FM Adjustment Knob
1.4 Specificati on
PeakTech® 1007 Output Characteristics
a. Frequency Range Sine, Square, Pulse and
Sync Output :
Triangle :
100mHz ~ 8MHz
100mHz ~ 1MHz
b. Frequency Resolution 100mHz or 6 digits display
c. Output Impedance 50Ω ±5%
d. Amplitude 1mV to 20Vp-p (open-circuit)
0.5mV to 10Vp-p (into 50Ω load)
e. Amplitude Resolution 2~3 digits, 1mV min (depending on the attenuation)
f. Amplitude Accuracy Typical 1% test at 1KHz 9Vp-p sine @ 50Ω load
g. Output Attenuation 0, -20, -40 and -60 dB
h. FUNC_OUT Self Protection FUNC_OUT short circuit protection
Reverse voltage protection below 20Vpeak
i. DC Offset and DC Output ±10V at open-circuit, ±5V at 50Ω load
j. DC Output Resolution 2 digits, ±1mV min (depending on the attenuation)
k. DC Output Accuracy 1% ±5 counts
l. Sine Wave Harmonic Distortion DC ~ 100KHz < -55dBc typical
100KHz to 1MHz < -45dBc typical
1MHz ~ 8MHz < -35dBc typical
m. Spurious (non harmonic) DC ~ 1MHz < -55dBc typical
n. Total Harmonic Distortion DC ~ 100KHz < 0.3%
o. Square Wave rise / fall time ≤ 12nS for 10Vp-p @ 50Ω load
overshoot < 5% of Vp for 10Vp-p @ 50Ω load
8
p. Pulse
(analogue control)
Frequency range :
Amplitude :
Duty cycle :
100mHz ~ 8MHz
0 ~ 10V / 0 ~ -10V / ±10V
100mHz ~ 6MHz : 20% to 80%
6MHz ~ 8MHz : 40 % to 60%
q. Triangle Wave Linearity 99% up to 100KHz
r. Sweep (Linear / Logarithm) Start frequency, stop frequency and sweep step
setting
Sweep type : up, down and up-down
s. Sync Output Frequency
range : Output
level :
Output
impedance
100mHz ~ 8MHz
low level ≤0.6V @ 50Ω high level
≥1V @ 50Ω
50Ω
Modulation Characteristics
a. FSK Function
Frequency range
Internal rate
Source
Sine, Square or Triangle
100mHz ~ 8MHz
400Hz / 1000Hz
Internal / External
b. PSK Function
Frequency range
Phase setting
Internal rate
Source
Sine, Square or Triangle
100mHz ~ 8MHz
0.0000 to 360.0 degree
400Hz / 1000Hz
Internal / External
Trigger/Gate Char ac t eristics
a. Trigger Source Main frequency setting Manual (rotary push) / External:
100mHz ~ 100KHz
b. Gate Source Main frequency setting Manual (rotary push) / External:
100mHz ~ 8MHz
General Characteristics
a. Power Source AC 115V / 230V (on request) ±10%, 50Hz / 60Hz
b. Temperature 0ºC ~ 40ºC (Operation) -20ºC ~ 70ºC (Storage)
c. Relative Humidity up to 80%
d. Dimension 95mm (H) x 235mm (W) x 280mm(D)
e. Weight 3kg
f. Accessories AC power cord, operating manual
PeakTech
®
1014 / 1016 Output Characteristics
a. Frequency
Range
Sine, Square, Pulse and Sync
Output : Triangle :
Ramp Up, Ramp Down :
100mHz ~ 10MHz (P 1014)
100mHz ~ 20MHz (P 1016)
100mHz ~ 1MHz
100mHz ~ 20KHz
b. Frequency
Resolution
100mHz or 6 digits display
9
c. Output
Impedance
50Ω ±5%
d. Amplitude 1mV to 20Vp-p (open-circuit)
0.5mV to 10Vp-p (into 50Ω load)
e. Amplitude
Resolution
3 digits, 1mV min (depending on the attenuation)
f. Amplitude
Accuracy
Typical 1% test at 1KHz 9Vp-p sine @ 50Ω load
g. Output
Attenuation
0, -20, -40 and -60 dB
h. FUNC_OUT Self
Protection
FUNC_OUT short circuit protection
Reverse voltage protection below 20Vpeak
i. DC Offset and
DC Output
±10V at open-circuit, ±5V at 50Ω load
j. DC Output
Resolution
3 digits, ±1mV min (depending on the attenuation)
k. DC Output
Accuracy
1% ±5mV
l. Sine Wave
Harmonic
Distortion
DC ~ 100KHz < -55dBc typical
100KHz to 1MHz < -45dBc typical
1MHz ~ **MHz < -35dBc typical
m. Spurious (non
harmonic)
DC ~ 1MHz < -55dBc typical
n. Total Harmonic
Distortion
DC ~ 100KHz < 0.3%
o. Square Wave rise / fall time 12nS for 10Vp-p @ 50Ω load overshoot < 5% of Vp for
10Vp-p @ 50Ω load
p. Pulse (digital
control)
Frequency range
Amplitude
200mHz ~ 20KHz
20KHz ~ 200KHz
0 ~ 10V / 0 ~ -10V / ±10V
Duty cycle 200mHz ~ 20KHz 1uS ~ 4.995S
20KHz ~ 200KHz 1uS ~ 494.9uS
q. Triangle Wave
Linearity
99% up to 100KHz
r. Sweep
(Linear /
Logarithm)
Start frequency, stop frequency and sweep step setting
Sweep type : up, down and up-down
s. Sync Output Frequency range
Output level
Output impedance
100mHz ~ 10MHz (P 1014)
100mHz ~ 20MHz (P 1016)
low level ≤0.6V @ 50Ω
high level ≥1V @ 50Ω
50Ω
10
Modulation Characteristics
a. AM Function
Modulation ratio
Source
Internal source
External source
Sine or Triangle
0% ~ 100%
Internal/External
400Hz/1000Hz Sine Wave
Max. 5.5Vpeak any waveform
b. FM Function
Frequency range
Peak deviation
Source
Internal source
External source
Sine, Suqare or Triangle
100mHz ~ 10KHz
4 ~ 5% of Max. frequency
Internal/External
400Hz/1000Hz Sine Wave
Max. 5.5Vpeak any waveform
c. FSK Function
Frequency range
Internal rate
Source
Sine, Square or Triangle
100mHz ~ 10MHz (P 1014)
100mHz ~ 20MHz (P 1016)
400Hz / 1000Hz
Internal / External
d. PSK Function
Frequency range
Phase setting
Internal rate
Source
Sine, Square or Triangle
100mHz ~ 10MHz (P 1014)
100mHz ~ 20MHz (P 1016)
0.0000 to 360.0 degree
400Hz / 1000Hz
Internal / External
Trigger/Gate Char ac t eristics
a. Trigger Source
Main frequency setting
Manual (rotary push) / External
100mHz ~ 100KHz
b. Gate Source
Main frequency setting
Manual (rotary push) / External
100mHz ~ 10MHz (P 1014)
100mHz ~ 20MHz (P 1016)
Frequency Counter
a. Range 2Hz to 100MHz
b. Accuracy ±5 counts
c. Resolution 7 digits or (99.9999)
d. Low pass filter Manual activate
e. Timebase accuracy 50MHz ±25 ppm (23.5 ±5 ˚C) or TCXO optional
f. Input Attenuation 0dB, 20dB
g. Sensitivity 2Hz ~ 50MHz/-20dBm @ 50Ω typical
50MHz ~ 80MHz/-10dBm @ 50Ω typical
80MHz ~ 100MHz/-5dBm @ 50Ω typical
General Characteristics
a. Power Source AC 115V / 230V (on request) ±10%, 50Hz / 60Hz
b. Temperature 0ºC ~ 40ºC (Operation); -20ºC ~ 70ºC (Storage)
c. Relative Humidity up to 80%
d. Dimension 95mm (H) x 235mm (W) x 280mm(D)
e. Weight 3kg
f. Accessories AC power cord, operating manual
11
2. Operation
2.1 Keypad and Knob Descrip t ion
Key and knob Function
Right Key
a. Change to the next selection.
b. In frequency editing, the frequency will x10 if the cursor is off.
c. In frequency editing, the cursor goes to right position if the cursor is on.
Function Key (P 1007)
a. Select the function output of sine, square, triangle or DC.
Function Key (P 1014 / 1016)
a. Select the function output of sine, square, triangle, DC, ramp up or ramp down.
Sweep Key (P 1007)
a. Enter the sweep menu to select and set the linear or logarithm frequency sweep.
Sweep Key/Counter Attenuation Key (P 1014 / 1016)
a. Enter the sweep menu to select and set the linear or logarithm frequency sweep.
b. In counter mode, select the attenuator on/off of the external counter input.
Both Key Pressed Simulteniously (P 1014 / 1016)
a. Enter the pulse width duty adjustment of square wave and adjust by rotary.
Frequency Step/Attenuation Key (P 1007)
a. Enter the attenuation menu to change the output attenuation.
b. Enter the frequency step menu to select and set the frequency step function.
Frequency Step/Attenuation Key/Counter LPF Key (P 1014 / 1016)
a. Enter the attenuation menu to change the output attenuation.
b. Enter the frequency step menu to select and set the frequency step function.
c. In counter mode, select the low pass filter on/off.
Left Key
a. Change to the previous selection.
b. In frequency editing, the frequency will /10 if the cursor is off.
c. In frequency editing, the cursor goes to left position if the cursor is on.
Amplitude/Offset/Pulse Width Display Key (P 1007)
a. Select the display of amplitude, offset and pulse width of square wave.
Amplitude/Offset Key (P 1014 / 1016) Select the display of amplitude and offset.
Trigger/Gate and PSK/FSK key
a. Enter the trigger/gate menu to select and set the trigger/gate function.
b. Enter the PSK/FSK menu to select and set the PSK/FSK function.
Sub Function Key (P 1007)
a. Enter the sub function menu to select and set the sync output, pulse width of
square wave and offset function.
Sub Function/Counter Key (P 1014 / 1016))
a. Enter the sub function menu to select and set the sync output, pulse width of
square wave, offset, AM, FM and counter function.
12
Rotary with Push button
a. Change to the next selection when turning clockwise.
b. Change to the previous selection when turning counterclockwise.
c. In frequency editing, turn clockwise to increase the frequency setting.
d. In frequency editing, turn counterclockwise to decrease the frequency
setting.
e. When the cursor shows up in frequency editing, press the rotary push button
to cancel the cursor.
f. In rotary push trigger/gate function, press the rotary push button to generate
trigger/gate signal manually.
Pulse Width Adjustment Knob (P 1007)
a. Adjust the pulse width of the square wave.
DC/Offset Adjustment Knob
a. Adjust the DC level if the function output is set to DC.
b. Adjust the offset level if the output offset is on.
Pulse Width Adjustment Knob
a. Adjust the amplitude of the function out.
Internal AM/FM Adjustment Knob (P 1014 / 1016)
a. Adjust the internal AM/FM modulation factor output.
13
2.2 Opening Screen
Connect the power cord and turn on the function generator.
a. Press the and together to reset the function generator. This reset function sets the
function generator to default of 1kHz sine wave output at 20dB attenuation amplitude.
b. To turn off the beep of the keypad, please press
and keys together for P 1007.
c. To turn off the beep of the keypad, please press
and key together for
P 1014/1016.
Warning
Please make sure that the correct power rating feeds to the function generator. If the higher
voltage (230V) feeds to 115V version of function generator, the chance of damage the function
generator may happen and the fuse will blow. Please use the following rating of fuse for
replacement.
115V version function generator: 0.5A/250V fuse (slow blow)
230V version function generator: 250mA/250V fuse (slow blow)
2.3 Setting Group Name
The setting group name is to show which parameter is set currently. For example, SW1 sets the
sweep mode of linear or logarithm, SW2 sets the type of sweep and SW3 sets the sweep start
frequency, etc.
14
2.4 Adjust Frequ e ncy
a. When the cursor does not appear on the LCD, use
and key to adjust frequency x10
and /10.
b. Adjust the
to make the cursor appear and to change the frequency, use or
key to change the cursor position right or left. To cancel the cursor, please press the rotary
button.
2.5 Select Waveform
a. In PeakTech® 1007, press the key to select output waveform. There are four waveforms
to be selected (
sine, square, triangle
and
DC
).
b. In PeakTech
®
1014 / 1016, press the key to select output waveform. There are six
waveforms to be selected (sine, square, triangle, ramp up, ramp down and DC).
Sine Wave Output
Square Wave Output
F R Q : 1 . 0 0 0 0 k H z
A M P : 1. 0 0 V S I N
F R Q : 1 . 0 0 0 0 k H z
A M P : 1. 0 0 V S Q U
15
Triangle Wave Output
Ramp Up Output
Ramp Down Output
DC Function Output
2.6 Frequency Sw eep
a. Press the or key to enter the sweep selection menu. Use , key or
to select linear or logarithm frequency sweep.
Frequency Sweep Off
Linear Frequency Sweep
Logarithm Frequency Sweep
b. When linear or logarithm is selected, press the
or key to select the
type of
F R Q : - - - - - - - - - - - - - - k H z
A M P : - 23 m V DC
F R Q : 1 . 0 0 0 0 k H z
A M P : 1. 0 0 V R D W
F R Q : 1 . 0 0 0 0 k H z
A M P : 1. 0 0 V R U P
F R Q : 1 . 0 0 0 0 k H z
A M P : 1. 0 0 V T R I
F R Q: 1. 0 0 0 0 k H z
S W E E P O F F S W 1
L I N : 4 . 0 0 0 2 k H z
S W E E P L I N S W 1
L O G : 4 . 0 0 0 2 k H z
S W E E P L O G S W 1
16
sweep, sweep start frequency, sweep stop frequency
and
sweep step frequency or
ratio
.
Use the
, key or to select the desired sweep type or frequencies.
Type of Sweep : Up
Type of Sweep : Up/Down
Type of Sweep : Down
Sweep Start Frequency Setting
Sweep Stop Frequency Setting
Linear Sweep Step Frequency Setting
Logarithm Sweep Step Ration Setting
L I N : 4 . 0 0 0 2 k H z
T S W D o w n S W 2
L I N : 4 . 0 0 0 2 k H z
T S W U p D o w n S W 2
L I N : 4 . 0 0 0 2 k H z
T S W U p S W 2
S T A : 5 0 . 0 k H z
S w e S t a r S e t S W 3
S T O : 8 . 0 0 0 0 0 M H z
S w e S t o p S e t S W 4
L I N : 1 0 . 0 0 0 0 0 k H z
S w e S t e p S e t S W 5
L O G : 1 0 . 0 .
S w e S t e p S e t S W 6
17
The actual logarithm sweep step ratio is calculated by following equation:
Actual Ratio =
F
n +1
= 1 + Setting Ratio Step Sweep Logarithm
F
n
1000
For Example, if the logarithm sweep step ratio setting is set to 5 and the F
n
is 1000Hz, the
actual ratio is the following:
5___
Actual Ratio =1 + 1000 = 1.005
The F
n+1
, F
n+2
and F
n+3
are the following:
F
n +1
= Actual Ratio × Fn = 1.005 ×1000Hz = 1005Hz
F
n + 2
= Actual Ratio × F
n +1
= 1.005 ×1005Hz = 1010.025Hz
F
n +3
= Actual Ratio × F
n + 2
= 1.005 ×1010.025Hz = 1015.075125Hz
Note : The maximum value of the logarithm sweep step ratio setting is 10.0 and the minimum
value of the logarithm sweep step ratio setting is 0.0001.
Linear Sweep Time Setting
Logarithm Sweep Time Setting
The sweep time sets the delay time between two frequencies step. It is set from 1 to 1000. The
higher value will put longer delay of two frequencies step.
c. After finishing the linear or logarithm sweep setting, the
, key or can be
used to select sine, square, triangle, ramp up or ramp down (P 1014 / 1016) output
waveform.
Linear Sweep
L I N : 1
S w e T i m e S e t S W 7
L O G: 1
S w e T i m e S e t S W 7
L I N: 4 . 0 0 0 0 2 M H z
A M P : 1 . 0 0 V S I N
18
Logarithm Sweep
2.7 Output Attenu at ion
a. Press the or key once to enter the attenuation select menu. Use the ,
key or to select the output attenuation of 0, 20, 40and 60 dB. The corresponding
amplitude indicator will show the current output attenuation setting.
0 dB Output Attenuation
20dB Output attenuation
40 dB Output Attenuation
60 dB Output Attenuation
L O G: 4 . 0 0 0 0 2 M H z
A M P : 1 . 0 0 V S I N
F R Q: 1 . 0 0 0 0 k H z
A T N : 0 D B A T 1
F R Q: 1 . 0 0 0 0 k H z
A T N : 2 0 D B A T 1
F R Q : 1 . 0 0 0 0 k H z
A T N : 4 0 D B A T 1
F R Q : 1 . 0 0 0 0 k H z
A T N : 6 0 D B . 0 0 V
19
2.8 Rotary Frequency Step Setting
a. Press the
or key twice to enter the frequency step setting menu. Use the ,
key or to select the
default
or
manual
frequency step of rotary up/down
adjustment.
Default Frequency Step
Manual Frequency Step
b. When frequency step sets to manual, press the
key again to adjust the frequency step
setting. Use the
, key or to adjust this setting.
Note : Once the frequency step is set to manual, the output frequency can be controlled by the
, key or .
F R Q : 1. 0 0 0 0 k H z
F S t e p D e f a A T 2
F R S : 1. 0 0 0 0 k H z
F S t e p M a n u A T 2
F R S : 1. 0 0 0 0 k H z
F r q S t e p S e t A T 3
20
2.9 Amplitude, O ffset and Square Wave Pulse Width Display
a. At P 1007, press the
key to show the amplitude, offset and pulse width of the
square wave.
b. At P 1014 / 1017, press the
key to show the amplitude, offset.
c. To adjust the amplitude, please turn the
knob.
Amplitude Display
d. To adjust the DC offset, please make sure the DC offset is set to on in the sub function menu
(SB3). Turn the
knob to adjust.
Offset Display
e. To adjust the pulse width at P 1007, please select the square waveform first and set the
pulse width on in sub function menu (SB2). Turn the
knob to adjust.
Square Wave Pulse Width Display
Note : The square wave pulse width display can be seen only if the square wave pulse width
adjustment is turned on in sub function.
f. The pulse width display value will show below or over if the pulse width is under or above
the following values at P 1007:
Frequency Range
0.1Hz ~ 5.99999MHz 6.00000MHz ~ 8.00000MHz
Display Shows
BELOW < 18% < 34%
OVER > 81% > 75%
F R Q : 1. 0 0 0 0 k H z
A M P : 1 . 0 0 V S I N
F R Q : 1 . 0 0 0 0 k H z
O F S : . 0 0 m V S I N
F R Q : 1 . 0 0 0 0 k H z
P W H : 5 0 % S I N
21
g. To adjust the pulse width at P 1014 / 1016, please select the square wave first and set the
pulse width on in the sub function menu (SB4). Press the
key to select SB5 menu to set
the pulse width frequency. Use the
, key or to set the frequency. Then, press the
key the select SB6 menu for the pulse width duty setting. Also, use the , key
or
to set the duty.
h. To quickly enter the pulse width duty setting, please press the
and key
simultaneously.
Pulse Width Frequency Setting
Pulse Width Duty Setting
2.10 Trigger/Gate
a. Press the key to enter the trigger / gate selection menu.
b. Use the
, key or to select
external trigger, rotary push trigger, external
gate
and
rotary push gate
. The corresponding internal or external indicator will show up.
Trigger / Gate Off
P W H : 1 . 0 0 0 0 k H z
5 0 0 . 0 u S S B 5
D T Y : 5 0 . 0 %
5 0 0 . 0 u S S B 6
F R Q : 1 . 0 0 0 0 k H z
T R G O F F T M 2
22
Rotary Push Trigger
2.11 Phase-Shift Keying (PSK) and Frequency-Shift Keying (FSK)
Modulation
a. Press the
key twice to enter the PSK/FSK modulation selection menu.
b.
Use the
, key or to select
PSK 1KHz, PSK 400Hz, PSK external, FSK
1KHz, FSK 400Hz
and
FSK external
. The corresponding internal or external indicator will
show up.
PSK / FSK Off
F R Q : 1 . 0 0 0 0 k H z
P F M O F F T M 3
23
FSK 400Hz
FSK 1KHz
PSK 1KHz
c. If FSK turns on, press the
key to enter the FSK frequency register 1 and frequency
register 0 setting menu. Use the
, key or to set the desired FSK frequencies.
24
Note : The FSK frequency register 1 setting range is from 12.0Hz to maximum output frequency
of the function generator or 12.000MHz. The FSK frequency register 0 setting range is
from 0.100Hz to maximum output frequency of the function generator or 12.0000MHz.
d. If PSK turns on, press the
key to enter the PSK phase setting menu.
Use the
, key or to set the desired PSK phase.
2.12 Sub Function
a. At P 1007, press the key to select sync output on/off, square wave pulse width
adjustement on/off
and
output offset on/off.
Use the
, key or to select the desired on/off setting.
Sync Output Off
F R Q : 1 . 0 0 0 0 k H z
S Y N O F F S B 1
25
Square Wave Pulse Width Adjustment On and Output Negative Pulse
Square Wave Pulse Width Adjustment On and Output Positive and Negative Pulse
Note : The square wave pulse width adjustment on/off selection will show up in the sub function
only if the output select to square wave. If the pulse width adjustment is on, the pulse
width indicator will show up.
Output Offset Off
Output Offset On
Note: If the output offset is on, the offset ind i cator will show up.
b. At P 1014 / 1016, press
key to select
counter display and setting, sync output
on/off, output offset on/off, AM on/off, square wave pulse width adjustment on/off,
pulse width frequency setting, pulse width duty setting and FM on/off.
Use the
, key or to select the desired on/off setting.
F R Q : 1 . 0 0 0 0 k H z
S Y N O F F S B 1
F R Q : 1 . 0 0 0 0 k H z
O F F S E T O F F S B 3
F R Q : 1 . 0 0 0 0 k H z
O F F S E T O N S B 3
L R G : 1 . 0 0 0 0 k H z
A T T : + L P F : ---
Counter Display and Attenuator / LPF Setting
26
Note : Use the
key to set the attenuator on/off (+/-). Use the key to set the
low pass filter on/off (+/-).
Output Offset On
AM Off
AM On, Internal 400Hz Source
F R Q : 1 . 0 0 0 0 k H z
O F F S E T O N S B 2
F R Q : 1 . 0 0 0 0 k H z
A M O F F S B 3
27
AM On, Internal 1000Hz Source
AM On, External Source
Square Wave Pulse Width Adjustment Off
Square Wave Pulse Width Adjustment On and Output Positive Pulse
Square Wave Pulse Width Adjustment On and Output Negative Pulse
Note : The square wave pulse width adjustment on/off selection will show up in the sub function
only if the output select to square wave. If the pulse width adjustment is on, the pulse
width indicator will show up.
F R Q : 1 . 0 0 0 0 k H z
P W H O F F S B 4
F R Q : 1 . 0 0 0 0 k H z
P W H P o s S B 4
F R Q : 1 . 0 0 0 0 k H z
P W H N e g S B 4
28
Pulse Width Frequency Setting
Pulse Width Duty Setting
FM Off
FM On, Internal 400Hz Source
FM On, Internal 1000Hz Source
2.13 Notice of Operating
a. For Waveform Measurement :
• The PeakTech
®
1007 / 1014 / 1016 Func Out output impedance is 50Ω, so the
oscilloscope input impedance must be matched to 50Ω. Use the coaxial cable for
characteristic impedance 50Ω in connecting with PeakTech
®
1007 / 1014 / 1016 Func
Out and oscilloscope input terminal.
•
Minimizing the cable length and cable stray capacitance is very important for the best
performance.
•
Because the function generator output is a wideband signal, every connecting path
including the transmitter or receiver, must be impedance matched to 50Ω, in order to
avoid the reflection from load and the undesired testing results.
P W H : 1 . 0 0 0 0 k H z
5 0 0 . 0 u S S B 5
D T Y : 5 0 . 0 %
5 0 0 . 0 u S S B 6
F R Q : 1 . 0 0 0 0 k H z
F M O F F S B 7
29
b. Output Voltage Definition :
•
For PeakTech
®
1007 / 1014 / 1016 output impedance is 50Ω, if the load is greater
enough than 50Ω, it will result in the load voltage drop equal to the open circuit of the
function generator output, approximately. If the load is 50Ω, the load voltage drop is
equal to one half of the open circuit of the function generator output voltage.
c. For Small Signal Output :
• For small signal output, it is suggested to add the attenuator, for example: -20 dB, to the
function generator output, and adjust the desired output level. This is the method for
getting the best signal / noise ratio.
d. For Large Signal Output :
•
In general, the function generator output is 20Vp-p in open circuit, and the output current
is limited to less than 100mA. For high voltage and high current output in special
applications, the external power amplifier is needed.
PeakTech® 05 / 2006
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