Description
The GP1665W is a direct drop-in replacement solution for the obsolete Wavetek 178 waveform synthesizer. The GP1665W is a programmable instrument capable of generating sine, square, triangle, ramps, pulse, and haverwaves from 1 µHz to 50 MHz. The firmware is customized for the Wavetek 178 command set. Test applications using the Wavetek 178 require no code modification when upgrading to the GP1665W.
Features
The GP1665W can operate in a trigger, gate, or burst generator mode at levels up to 20 V
PP. It is synthesized to 8 digits in all modes. The main generator produces the sine and square waves, as well as triangles, ramps, pulses, and haverwaves at reduced frequencies.
The internal sweep generator varies the main generator frequency linearly or logarithmically between start and stop frequencies. It operates in triggered, gated, hold at start, and hold at stop modes. It also has 10 programmable frequency markers to show critical frequencies within the sweep. The sweep generator can trigger the main generator to produce pulses with a 10 µs to 10 min repetition rate and 5 µs to 5 pulse width.
The GP1665W can be phase locked by using an external reference input to lock the reference source. This allows the synthesizer to operate as a variphase generator with phase offset in 0.01° increments.
The generator's output level into a 50 ohm load can be programmed from 1 mV to 20 V
PP with 3 digits resolution. DC offset can be programmed over a range of ±10 V. The GP1665W also has two external inputs for phase-amplitude-modulation. If phase modulated, the main generator varies ±360° at frequencies above 500 kHz. With amplitude modulation, the output can be modulated up to 200%.
Applications
- Automatic Test Equipment (ATE)
- Component Analysis
- Communication Signals
- Process Control
- Sonar
GP1665W Specifications
| Operating Modes |
|---|
| Continuous | Generator runs continuously. |
| Triggered | Generator is quiescent until triggered by an external signal, internal sweep signal, GPIB, or manual trigger, then it generates one cycle at the selected frequency. |
| Gated | Same as triggered except generator oscillates for the duration of the gate signal plus the remainder of the waveform in progress. |
| Triggered Haverwave | Same as triggered mode except output is sine or triangle waveform starting at -90° or +90°. |
| Gated Haverwave | Same as gated mode except output is a sine or triangle waveform starting at -90° or +90°. |
| Triggered Burst | Same as triggered mode except the number of cycles output for each trigger input is selectable from 1 to 65,536 (216) counts. |
| Triggered Haverwave Burst | Same as triggered burst except output is a sine or triangle waveform starting at -90° or +90°. |
| Frequency Sweep | Output can be swept by internal sweep generator. |
Frequency Range
Low end frequency for all waveforms is 1 µHz. |
| Continuous Mode | - to 50 MHz in sine, square, and AM sine modes
- to 500 kHz in triangle mode
|
| All Triggered Gated and Burst Modes | - to 200 kHz in sine, square, triangle, and AM sine modes
|
| Main Output | 20 VPP into 50 ohm load. Combined amplitude / DC offset waveforms not to exceed ±10 V peak into 50 ohm. Output voltage into an open circuit is double indicated voltage when a voltage less than ±5 V peak is selected. |
| Amplitude Conversion | Permits entry and display of amplitude for all waveforms in units VRMS, VPP and dBm. |
| Frequency Resolution | 8 digits or 1 µHz |
| Accuracy | Better than 0.0005% of program setting,
±0.01 µHz |
| Stability | Long term: ±51 x 10-6 / mo.
Temperature: ±51.2 x 10-7 / °C. |
| Signal to Phase-Noise | Greater than 46 dB in a 30 kHz band centered on carrier, but excluding a ±1 Hz band around the carrier. |
| Spurious | 60 dBc or 30 µV, whichever is greater,
1 µHz to 500 kHz
50 dBc or 30 µV, whichever is greater,
500 kHz to 50 MHz. |
| Amplitude Characteristics |
|---|
Range and Accuracy
Note: DC offset range is 0 to ±10 V DC. Specified for 1 kHz sine wave or for DC output into a precision 0.1% 50 ohm load. |
| 10.02 to 20 VPP | ±1% ±20 mV |
| 1.01 to 10 VPP | ±1% ±10 mV |
| 0.101 to 1 VPP | ±3% ±2 mV |
| 10.1 to 100 mVPP | ±4% ±100 µV |
| 1 to 10 mVPP | ±5% ±20 µV |
| Resolution | 3 digits ≤ 10.0 VPP, 4 digit (20 mV) < 10 VPP |
| DC Offset | ±1% of setting ±40 mV (worst case)
Note: Amplitude and DC offset share the output attenuator. |
| Frequency Response | ±1% for 1 µHz to 20 kHz
±3% for 20 kHz to 500 kHz
±7% for 500 kHz to 25 MHz
±15% for 25 MHz to 50 MHz |
| Offset Characteristics |
|---|
| Phase Offset | Output phase may be changed from ±1,000 revolutions (±360,000 degrees) in 0.01 degree resolution steps up to 500 kHz and 0.1 degree resolution steps above 500 kHz. |
| DC Offset and DC Voltage Output | 0 to ±10 V DC into 50 ohm
Output voltage is double into open circuit when voltage is less than ±5 V DC is selected. |
| Waveform Characteristics |
|---|
| Sine Distortion | -55 dB to 50 kHz
-40 dB to 500 kHz
-30 dB to 50 MHz
Specified for 1 VRMS (2.83 VPP) sine wave |
| Square Rise and Fall Times | Less than 8 ns, 1.01 to 10 VPP
Less than 10 ns, greater than 10 VPP |
| Square Aberrations | Less than 5% of pk-pk voltage |
| Pulses |
|---|
| Period | 10 µs to 600 s
4 digits or 10 µs resolution (Control: Sweep Time); jitter < 2% of pulse width |
| Width | 5 µs to 500,000 sec (> 5 days)
8 digits (Control: Main Frequency); < 0.05% jitter
Note: Width is usable to 1 µs |
| Sweep Mode |
|---|
| Sweep Generator | Sweep generator is fully synthesized any may be used independently or for frequency sweeping and triggering the main generator. Frequency sweep may be selected linear or logarithmic, and up or down. Sweep may be triggered, interrupted with hold, and continued with resume. Triggered, gated, and burst are permitted during sweep. |
| Continuous Sweep | Sweep generator sawtooth runs continuously |
| Triggered Sweep | Incoming trigger causes a single sweep and resets to the start frequency |
| Twiggered Sweep / Triggered Reset | As in triggered sweep, but sweep holds at stop frequency until subsequent trigger returns frequency to start frequency |
| Sweep Time | 0.01 to 600 seconds, 4 digit or 10 µs resolution |
| Output | 0 to approximately +5 V ramp synthesized to 2,000 steps per sweep. 600 ohm output impedance. |
| Frequenct Marker Output | TTL levels. One of the ten preset markers can be selected. Output is low whent then main generator frequency is below marker frequency; output is high when above. |
| Maximum Sweep Range | Low Band: 1 µHz to 500 kHz
High Band: 5 kHz to 50 MHz |
| Minumum Sweep Range | Linear: Low Band: 20 mHz per 1 s of sweep time
High Band: 2 Hz
Log: In addition to the above, any start and stop frequencies with ratio greater than 2. |
| Sweep Resolution | Frequency Resolution (Start, Stop, Hold, Markers): 8 digits or 1 µHz
Sweep Frequency Update: Every 5 µs (lin and log)
Log Slope Updates: Every 2 ms |
| Auxillary Outputs |
|---|
| TTL and TTL Sync | At generator frequency, 50 ohm source impedance, 50% duty cycle, < 5 ns transition time. |
| Reference Output | 10 MHz, 1 VPP sine, 50 ohm source impedance |
| Sweep Ramp | See Sweep Generator |
| Frequency Marker | See Sweep Generator |
| Inputs |
|---|
| Trigger | A TTL level transition can trigger or gate both the main generator and/or internal sweep generator. Triggering slope up or down is selectable. |
| Reference | An external 0.5 V to 10 VPP sine or pulse clock of ±5 ppm or better stability and accuracy automatically locks the internal reference. External clock may be 1, 2, 3...9 or 10 MHz. Input impedance is 1 K ohm. |
| Amplitude Modulation | Rates from DC to 10 MHz minimum. Input impedance is 600 ohm. 5 VPP input gives 100% modulation. Main output halved with no modulation. 200% modulation permitted. Sync output not affected by modulation. |
| Phase Modulation | Rates from DC to 10 kHz minimum. Input impedance is 10 K ohm. ±5 V input delivers approximately ±360° shift. Output deviation is ÷100 for main output frequencies 500 kHz and below. |
| General |
|---|
| Interface | Fully compatible with Wavetek 178 |
| Memory | Up to 5 complete instrument settings can be stored and recalled from volatile (RAM) memory. Settings may be modified or deleted. |
| Power Requirements | 100 - 240 V selectable, 50 VA (max) |
| Weight | 5 kg |
| Dimensions | 13.0 cm H x 21.2 cm W x 40 cm L
(5.25" x 8.3" x 15.75") |
| Operating Temperature | 0 °C to +50 °C |
| Humidity | To 95% RH, 0 °C to +40 °C |
| Connectors | Rear panel connectors optional |
| Rack Mount | Optional |
| AFMETCAL Procedure | 33K3-4-3583 |
| Calibration Interval | 1 year |
Note: Specifications are subject to change without notice.
Knowledge Base Articles pertaining to GP1665W
Form/Fit/Function replacement of legacy instrumentation provides a superior solution that preserves investment in ATE hardware and TPS's
Read more...
Downloads for GP1665W
GP1665WDS.pdf
Mar 8, 2023
version: D
356.75 KB
GP1665WUG.pdf
May 16, 2023
1.17 MB
LegacyReplacementSolutions.pdf
Apr 26, 2017
version: B
1.79 MB
Download our PXI Catalog
Products similar to GP1665W
- GP1552A Series - Dual Channel, 50 MHz Programmable Pulse Generator - HP 8160/HP 8160A, Wavetek 859 Compatible
- GP1612 Series - Programmable Pulse Generator - HP 8112A Compatible
- GP1616H Series - Programmable Signal Source / Function Generator - HP 8116A Compatible
- GP1650W - Arbitrary Waveform Generator - Wavetek 175 compatible
- GP1665H Series - Programmable Function Generator, HP8165/8165A Compatible
Order GP1665W and Related Products
To order call
1-888-837-8297
or order on-line via the form below. Prices are specified for
USA
destination orders. Prices are noted in USD.
Import duties, taxes, and charges are not included in the item price.