APCe7022: PCI Express Carrier Card for AcroPack® Modules

This board interfaces two AcroPack mezzanine modules to a PCI Express bus on a PC-based computer system.

Two AcroPack module slots give you the freedom to mix a variety of I/O functions (A/D, D/A, digital in, digital out, serial I/O, etc.) on a single board. Or, combine modules of the same type for almost one hundred channels on a single card. Either way, the APCe7020 saves your precious card slots and reduces your costs.

The AcroPack® product line updates our popular Industry Pack I/O modules with a PCIe interface format. This tech-refresh design offers a compact size, low-cost I/O, the same functionality and memory map of the existing Industry Pack modules.

Performance Specifications

PCI Express Bus Compliance

This device meets or exceeds all written PCI Express specifications per revision 2.1.

Includes a PCIe Gen 2 switch to expand the single host PCIe port to two ports, one to each device (AcroPack or mini-PCIe).

The host port consists of four PCIe lanes, each of the mini-PCIe sites have one lane each.

I/O Interface

Connector

P1 (PCIe Bus): PCIe V2.1 x4 lane (PCIe Gen 2 Switch).
J3 (Carrier Field I/O): 68-pin, stacked, CHAMP (TE Connectivity 5787962).
P2, 3 (AcroPack Field I/O): 100-pin socket (Samtec SS5-50-3.00-L-D-K-RT).
J1, 2 (Mini-PCIe): 52-pin socket (TE Connectivity 1759547-1).
P6 (JTAG): 14-pin header (Molex 87832-1420).

Gold plating in the connection area, M2.5 screws and spacers provide excellent connection integrity and stability for harsh environments.

Ease of Use

A unique carrier and site number can be set for each AcroPack site by a DIP switch. This provides the capability to distinguish a particular AcroPack module from others when multiple instances of the same module are used in a system.

A standard 14-pin Xilinx JTAG programming header is provided for programming and debugging the FPGA on some AcroPack modules. The JTAG ports of the two AcroPack modules are daisy-chained.

Physical

Physical Configuration: PCIe x4 lane. Length: 6.3 inches (160.02 mm). Height: 4.375 inches (111.12 mm).

Environmental

Operating temperature: -40 to 85°C with 200 LFM airflow.
Storage temperature: -55 to 125°C.
Relative humidity: 5 to 95% non-condensing.
Power
3.3 Volts (±5%): 0.5 A typical.
12 Volts (±8%): 27mA typical.

The APCe7020E-LF has three DC/DC converters to provide the power supply voltages to the AcroPack modules that are not present at the host interface. The 1.5 Volt supply is sourced from the 3.3 Volt host power. The 5 Volt and -12 Volt supply is sourced from 12 Volt host power.