Red Pitaya nowadays has a wide variety of products for different purposes and segments. Nevertheless, up to this day, Red Pitaya's original product STEMlab 125-14 is still the best-seller. In the past year, we have received many requests for clients to make small tweaks to the existing product and we cam up with quite a few variations of the original STEMlab 125-14. Here' s a quick overview of each variant and you can compare the technical specifications in the table below.
Red Pitaya STEMlab 125-14 Low Noise
STEMlab 125-14 Low Noise is based on a STEMlab 125-14 board that is populated with additional linear analog power for analog power supplies to reduce RF inputs and outputs noise and consequently increase ENOB.
Red Pitaya STEMlab 125-14 External Clock
STEMlab 125-14 External clock is based on the STEMlab 125-14 model that is modified to be used with an external clock oscillator, which is important especially for RF applications that operate at other frequencies, require better quality clock or clock synchronization.
With this modification, users can provide their own clock for the Red Pitaya device through the E2 extension connector.
Red Pitaya STEMlab 125-14 Z7020 Low Noise
STEMlab 125-14Z7020 Low Noise is based on a STEMlab 125-14 Z7020 board that is populated with additional linear analog power for analog power supplies to reduce RF inputs and outputs noise and consequently increase ENOB.
Comes with Xilinx Zynq 7020 SoC.
Red Pitaya STEMlab 125-14 ISO17025
Based on the STEMlab 125-14 Starter kit and it comes with individual ISO17025 certificate.
BASIC
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STEMlab 125-10
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STEMlab 125-14
STEMlab 125-14 LN
STEMlab 125-14 ext. clk
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STEMlab 125-14-Z7020-LN
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SDRlab 122-16
SDRlab 122-16 ext clk
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SIGNALlab 250-12
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Processor
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DUAL CORE ARM CORTEX A9
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DUAL CORE ARM CORTEX A9
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DUAL CORE ARM CORTEX A9
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DUAL CORE ARM CORTEX A9
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DUAL CORE ARM CORTEX A9
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FPGA
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FPGA Xilinx Zynq 7010 SOC
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FPGA Xilinx Zynq 7010 SOC
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FPGA Xilinx Zynq 7020 SOC
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FPGA Xilinx Zynq 7020 SOC
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FPGA Xilinx Zynq 7020 SOC
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RAM
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256MB (2Gb)
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512MB (4Gb)
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512MB (4Gb)
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512MB (4Gb)
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1GB (8Gb)
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System memory
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Micro SD up to 32GB
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Micro SD up to 32GB
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Micro SD up to 32GB
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Micro SD up to 32GB
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Micro SD up to 32GB
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Console connection
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USB to serial converter required
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micro USB
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micro USB
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micro USB
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USB-C
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Power connector
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Micro USB
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Micro USB
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Micro USB
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Micro USB
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Power Jack
RJ45 (PoE version only)
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Power consumption
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5V, 1,5A max
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5V, 2A max
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5V, 2A max
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5V, 2A max
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24V, 0.5A max
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CONNECTIVITY
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STEMlab 125-10
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STEMlab 125-14
STEMlab 125-14 LN
STEMlab 125-14 ext. clk
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STEMlab 125-14-Z7020-LN
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SDRlab 122-16
SDRlab 122-16 ext clk
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SIGNALlab 250-12
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Ethernet
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1Gbit
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1Gbit
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1Gbit
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1Gbit
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1Gbit
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USB
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USB 2.0
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USB 2.0
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USB 2.0
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USB 2.0
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2 x USB 2.0
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WIFI
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requires WIFI dongle
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requires WIFI dongle
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requires WIFI dongle
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requires WIFI dongle
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requires WIFI dongle
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Synchronisation
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/
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Daisy chain connector (up to 500 Mbps)
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Daisy chain connector (up to 500 Mbps)
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Daisy chain connector (up to 500 Mbps)
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Daisy chain connector (up to 500 Mbps)
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RF INPUTS
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STEMlab 125-10
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STEMlab 125-14
STEMlab 125-14 LN
STEMlab 125-14 ext. clk
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STEMlab 125-14-Z7020-LN
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SDRlab 122-16
SDRlab 122-16 ext clk
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SIGNALlab 250-12
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RF input channels
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2
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2
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2
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2
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2
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Sample rate
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125 MS/s
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125 MS/s
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125 MS/s
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122.88 MS/s
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250 MS/s
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ADC resolution
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10 bit
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14 bit
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14 bit
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16 bit
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12 bit
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Input impedance
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1MOhm/10pF
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1MOhm/10pF
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1MOhm/10pF
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50 Ohm
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1MOhm
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Full scale voltage range
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±1V (LV) and ±20V (HV)
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±1V (LV) and ±20V (HV)
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±1V (LV) and ±20V (HV)
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0.5Vpp/-2dBm
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+-1V / +-20V (software selectable)
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Input coupling
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DC
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DC
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DC
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AC
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AC / DC (software selectable)
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Absolute max. Input voltage range
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30V
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30V
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30V
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DC max 50V (AC-coupled) 1 Vpp for RF
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30V
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Input ESD protection
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Yes
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Yes
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Yes
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Yes
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Yes
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Overload protection
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Protection diodes
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Protection diodes
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Protection diodes
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DC voltage protection
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Protection diodes
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Bandwidth
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DC-50MHz
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DC-60MHz
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DC-60MHz
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300 kHz - 550 MHz
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DC - 60MHz
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RF OUTPUTS
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STEMlab 125-10
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STEMlab 125-14
STEMlab 125-14 LN
STEMlab 125-14 ext. clk
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STEMlab 125-14-Z7020-LN
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SDRlab 122-16
SDRlab 122-16 ext clk
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SIGNALlab 250-12
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RF output channels
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2
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2
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2
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2
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2
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Sample rate
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125 MS/s
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125 MS/s
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125 MS/s
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122.88 MS/s
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250 MS/s
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DAC resolution
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10 bit
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14 bit
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14 bit
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14 bit
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14 bit
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Load impedance
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50 Ohm
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50 Ohm
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50 Ohm
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50 Ohm
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50 Ohm
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Voltage range
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±1V
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±1V
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±1V
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1Vpp/ +4 dBm
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+-2V / +-10V (Hi-Z load) (software selectable)
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Short circut protection
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Yes
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Yes
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Yes
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N/A, RF transformer & AC-coupled
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Yes
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Connector type
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SMA
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SMA
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SMA
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SMA
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BNC
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Output slew rate
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2V / 10ns
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2V / 10ns
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2V / 10ns
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N/A
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10V / 17ns
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Bandwidth
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DC-50MHz
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DC-60MHz
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DC-60MHz
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300 kHz - 60 MHz
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DC - 60MHz
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EXTENSION CONNECTOR
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STEMlab 125-10
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STEMlab 125-14
STEMlab 125-14 LN
STEMlab 125-14 ext. clk
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STEMlab 125-14-Z7020-LN
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SDRlab 122-16
SDRlab 122-16 ext clk
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SIGNALlab 250-12
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Digital IOs
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16
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16
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16
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16
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16
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Analog inputs
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4
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4
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4
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4
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4
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Analog inputs voltage range
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0-3,5V
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0-3,5V
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0-3,5V
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0-3,5V
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0-3,5V
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Sample rate
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100kS/s
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100kS/s
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100kS/s
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100kS/s
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100kS/s
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Resolution
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12bit
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12bit
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12bit
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12bit
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12bit
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Analog outputs
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4
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4
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4
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4
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4
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Analog outputs voltage range
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0-1,8V
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0-1,8V
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0-1,8V
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0-1,8V
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0-1,8V
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Communication interfaces
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I2C, SPI, UART
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I2C, SPI, UART
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I2C, SPI, UART
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I2C, SPI, UART
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I2C, SPI, UART, USB
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Available voltages
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+5V,+3,3V,-4V
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+5V,+3,3V,-4V
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+5V,+3,3V,-4V
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+5V,+3,3V,-4V
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+5V,+3,3V,-4V
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external ADC clock
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N/A
|
yes
|
yes
|
yes
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yes
|
SYNCHRONISATION
| |
STEMlab 125-10
|
STEMlab 125-14
STEMlab 125-14 LN
STEMlab 125-14 ext. clk
|
STEMlab 125-14-Z7020-LN
|
SDRlab 122-16
SDRlab 122-16 ext clk
|
SIGNALlab 250-12
|
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Trigger input
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through extension connector
|
through extension connector
|
through extension connector
|
through extension connector
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through BNC connector
|
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Daisy chain connection
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N/A
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over SATA connection
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over SATA connection
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over SATA connection
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over SATA connection
|
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Ref. clock input
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N/A
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N/A
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N/A
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N/A
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through BNC connector
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December 17, 2024
