3.1.1.5. STEMlab 125-14 4-Input

STEMlab 125-14 4-Input is a single-board RF signal acquisition platform that offers the same general hardware features as STEMlab 125-14. The main differences/benefits are that:

  • There are 4 analog input channels @ 125 Msps & 14 bits (instead of 2 inputs and 2 outputs).

  • RF inputs come with better performance (less crosstalk, noise, and distortions).

  • Zynq 7020 (bigger FPGA that offers more processing capabilities and more digital IO pins available on the extension connector).

  • Switching between internal and external clocks can be done using a jumper or control signal on the extension connector.

  • The internal ADC clock can be locked to an external reference clock via an extension connector (this feature is only available upon customer request).

3.1.1.5.1. Technical specifications

Basic

Processor

DUAL CORE ARM CORTEX A9

FPGA

FPGA Xilinx Zynq 7020 SOC

RAM

512 MB (4 Gb)

System memory

Micro SD up to 32 GB

Console connection

Micro USB

Power connector

Micro USB

Power consumption

5 V, 2 A max

Connectivity

Ethernet

1 Gbit

USB

USB 2.0

WIFI

requires WIFI dongle

RF inputs

RF input channels

4

Sample rate

125 MS/s

ADC resolution

14 bit

Input impedance

1 MOhm / 10 pF

Full scale voltage range

±1 V (LV) and ±20 V (HV)

Input coupling

DC

Absolute max. Input voltage range

30 V

Input ESD protection

Yes

Overload protection

Protection diodes

Bandwidth

DC - 60 MHz

RF outputs

RF output channels

N/A

Sample rate

N/A

DAC resolution

N/A

Load impedance

N/A

Voltage range

N/A

Short circut protection

N/A

Connector type

N/A

Output slew rate

N/A

Bandwidth

N/A

Extension connector

Digital IOs

20

Analog inputs

4

Analog inputs voltage range

0-3.5 V

Sample rate

100 kS/s

Resolution

12 bit

Analog outputs

4

Analog outputs voltage range

0-1.8 V

Communication interfaces

I2C, SPI, UART

Available voltages

+5 V, +3.3 V, -4 V

external ADC clock

yes

Synchronisation

Trigger input

Through extension connector

Daisy chain connection

Over SATA connection (up to 500 Mbps)

Ref. clock input

N/A

Note

For more information, please refer to the Product comparison table.

Note

Jumper orientation can have an effect on the measurements taken with Red Pitaya. Check the Jumper Orientation for more details.

3.1.1.5.2. Schematics

3.1.1.5.3. Mechanical specifications