The Agilent DSO81204A is a 12 GHz digital signal oscilloscope engineered for high-speed serial communication characterization and signal integrity validation. It delivers 40 GSa/s sampling across 4 analog channels with up to 64 Mpts of deep memory, enabling precise capture and analysis of complex digital protocols. The instrument combines low trigger jitter (< 500 fs rms), flexible input impedance options (1 MΩ and 50 Ω), and a modular InfiniiMax II probing system for measurements ranging from 1 mV/div to 5 V/div.
Technical Specifications
• Bandwidth: 12 GHz (13 GHz with DSP enhancement)
• Channels: 4 analog
• Maximum Sample Rate: 40 GSa/s
• Record Length: Up to 2 Mpts at 40 GSa/s; 64 Mpts at 4 GSa/s; 0.5 Mpts on 2 channels; 0.25 Mpts on 4 channels
• Trigger Jitter: < 500 fs rms
• Vertical Resolution: 8 bits (expandable to ≥12 bits with averaging)
• Input Impedance: 1 MΩ ± 1% (13 pF typical) or 50 Ω ± 1.5%
• Input Coupling: AC/DC at 1 MΩ; DC at 50 Ω
• Sensitivity: 1 mV/div to 5 V/div (1 MΩ); 1 mV/div to 1 V/div (50 Ω)
• DC Gain Accuracy: ±2% of full scale at full resolution
• Maximum Input Voltage: ±5 V (CAT I)
• Hardware Bandwidth Limit: 20 MHz
– Key Features
• InfiniiMax II 1169A probing system with 12 GHz bandwidth
• Probe amplifier dynamic range of 3.3 V; DC offset range ±16 V; maximum voltage ±30 V
• Electronic attenuators with ESD protection
• Support for differential (50 kΩ, 0.21 pF) and single-ended (25 kΩ, 0.35 pF) measurements
• Flexible probe configurations: browsing, solder-in, socket, and SMA-compatible models
• EZJIT and EZJIT Plus jitter analysis
• High-speed serial data analysis with clock recovery and 8b/10b decoding
– Typical Applications
• PCI Express electrical performance validation and compliance testing
• Serial ATA signal quality analysis
• Gigabit Ethernet characterization
• USB 2.0 compliance verification
• DVI electrical performance validation
• DDR2 and LPDDR2 memory signal integrity
– Compatibility & Integration
The oscilloscope integrates with dedicated compliance test packages (N5393A for PCI Express, N5392A for Gigabit Ethernet, N5413A for DDR2/LPDDR2, and E2683A for USB 2.0), enabling protocol-specific measurements and standards validation across multiple high-speed serial interfaces.
