The GE Fanuc/ICS ICS-554B-4-MN is a 4-channel, 14-bit PMC ADC board delivering 105 MHz simultaneous sampling per channel with integrated digital down-converters and user-programmable Xilinx FPGA. The board combines high-resolution analog capture, flexible multichannel signal processing, and onboard computing resources for demanding radar, communications, and test applications requiring both wideband and narrowband signal analysis.
## Technical Specifications
**Analog-to-Digital Conversion**
• Four 14-bit ADCs at 105 MHz maximum sampling rate per channel
• Signal-to-noise ratio (SNR) >72 dB
• Spurious-free dynamic range (SFDR) >85 dB
• Full-scale input: +5.5 dBm (≈1.2 Vpp) into 50 Ω
• Transformer or DC input coupling options
**Digital Down-Conversion (DDC)**
• Four optional Graychip GC4016 quad DDCs
• Simultaneous down-conversion of up to 16 arbitrary signal bands
• Maximum output bandwidth: 10 MHz at Fs=100 MHz (four-channel); 5 MHz (eight-channel); 2.5 MHz (16-channel)
• Minimum output bandwidth: 4.9 kHz at Fs=100 MHz, 16-channel configuration
**Signal Processing**
• 1 million gate Xilinx FPGA (XC2V1000)
• 1 MByte onboard memory: two independent 0.5 MByte FIFOs for simultaneous wideband and narrowband operation
• All 64 Pn4 user I/O signals routed to FPGA with LVTTL support
**Clocking & Synchronization**
• Internal 100 MHz crystal (ICS-554B)
• External clock and trigger support
• Coherent sampling across single channels, multiple channels, and multiple boards
**Interfaces**
• PCI 2.2 compatible with 64-bit, 66 MHz DMA
• Little-endian data format; big-endian conversion supported via QL5064 chip
• Uncommitted Pn4 user I/O PMC interface
**Power**
• 1.0–2.5 A @ +5 V
• Up to 1.5 A @ +3.3 V
• 0.3 A @ ±12 V (ICS-554D only)
## Key Features
• Four simultaneous 14-bit ADC channels at 105 MHz
• Multiband DDC processing: up to 16 independent FDM signals
• User-programmable FPGA for custom signal conditioning and real-time processing
• Dual-FIFO architecture for concurrent wideband capture and narrowband analysis
• PMC form factor for embedded and legacy PCI systems
## Typical Applications
• Radar signal intercept and analysis
• Multichannel communications monitoring
• Software-defined radio development
• Simultaneous multiband signal acquisition and processing
## Compatibility & Integration
PCI 2.2 interface ensures compatibility with standard PCI backplanes. Fast 64-bit DMA enables high-throughput data transfer. FPGA resources are largely available for user logic implementation, accommodating custom algorithms and signal processing workflows.
