The Keysight Technologies (formerly Agilent) 81141A is a high-speed serial Pulse Data Generator operating up to 7 GHz. Designed for physical layer validation, characterization, and stress testing of high-speed digital transmission systems, it features low-jitter signals, fast transition times, and 1 GHz linear delay modulation for rigorous jitter tolerance and jitter transfer measurements.
Specifications
General
| Parameter | Value |
|---|---|
| Interfaces | GPIB, LAN, USB |
| Display | 8.4 inch color LCD |
| Warm-up Time | 30 min |
Physical
| Parameter | Value |
|---|---|
| Power Supply | 100 to 240 V AC (±10%), 47 to 63 Hz, 300 VA max |
| Operating Temperature | 5 to 40 °C |
| Dimensions (W×H×D) | 424 mm × 145 mm × 432 mm |
| Weight | 14.5 kg |
Timing and Delay Characteristics
| Parameter | Value |
|---|---|
| Frequency Range | 170 MHz to 7 GHz |
| Jitter Modulation Bandwidth | 1 GHz |
| RMS Jitter | < 1 ps RMS |
| Subrate Clock Generator | Supported |
Pulse Output Performance
| Parameter | Value |
|---|---|
| Transition Time (10% to 90%) | < 45 ps |
| Data Formats | NRZ, R1, RZ |
| PRBS Generation Range | 2^7-1 to 2^31-1 |
| Pattern Memory Depth | 32 Mbit |
| Sequencing and Looping | Supported (for protocol-based data) |
| Data Output Configuration | Differential |
| Clock Output Configuration | Differential |
| Trigger Output Configuration | Single-ended |
Trigger and Sync Options
| Parameter | Value |
|---|---|
| External Inputs | Trigger input, External clock input |
| Event Trigger Capabilities | Supported |
Environmental
| Parameter | Value |
|---|---|
| Storage Temperature | -40 to +70 °C |
Data Output
| Parameter | Value |
|---|---|
| Data Output Amplitude Range | 100 mVpp to 1.80 Vpp |
| Data Output Voltage Window | -2.00 V to +3.00 V |
| Data Output Crossing Point Range | 30% to 70% (typical) |
| Data Output Impedance | 50 Ω (nominal) |
Clock Output
| Parameter | Value |
|---|---|
| Clock Output Amplitude Range | 100 mVpp to 1.80 Vpp |
| Clock Output Voltage Window | -2.00 V to +3.00 V |
| Clock Output Impedance | 50 Ω (nominal) |
Delay Control
| Parameter | Value |
|---|---|
| Delay Control Range | -1.000 ns to +1.000 ns |
| Delay Control Resolution | 1 ps |
| Phase Control Range | -360.0° to +360.0° |
| Phase Control Resolution | 0.1° |
External Clock Input
| Parameter | Value |
|---|---|
| External Clock Input Frequency | 170 MHz to 7 GHz |
| External Clock Input Amplitude | 100 mVpp to 2.0 Vpp |
Delay Modulation Input
| Parameter | Value |
|---|---|
| Delay Modulation Input Range | -1.0 V to +1.0 V |
| Delay Modulation Input Impedance | 50 Ω (nominal) |
Compliance & Standards
| Parameter | Value |
|---|---|
| Safety Compliance | IEC 61010-1, EN 61010-1 |
| EMC Compliance | EN 61326-1 |
Technology
Pulse Pattern Generator (PPG)
Applications
Physical layer testing, high-speed bus design validation, and fundamental laboratory research