Product comparison table (Original Gen)

Note

Looking for a product comparison table for Gen 2? Check the Gen 2 product comparison table.

	STEMlab 125-14 STEMlab 125-14 LN STEMlab 125-14 ext. clk	STEMlab 125-14 Z7020 LN	STEMlab 125-14 4-Input	SDRlab 122-16 SDRlab 122-16 ext. clk	SIGNALlab 250-12	STEMlab 125-10
Basic
Processor	Dual core ARM Cortex-A9	Dual core ARM Cortex-A9	Dual core ARM Cortex-A9	Dual core ARM Cortex-A9	Dual core ARM Cortex-A9	Dual core ARM Cortex-A9
FPGA	FPGA AMD (Xilinx) Zynq 7010 SoC	FPGA AMD (Xilinx) Zynq 7020 SoC	FPGA AMD (Xilinx) Zynq 7020 SoC	FPGA AMD (Xilinx) Zynq 7020 SoC	FPGA AMD (Xilinx) Zynq 7020 SoC	FPGA AMD (Xilinx) Zynq 7010 SoC
RAM	512 MB (4 Gb)	512 MB (4 Gb)	512 MB (4 Gb)	512 MB (4 Gb)	1 GB (8 Gb)	256 MB (2 Gb)
Core clock frequency	125 MHz	125 MHz	125 MHz	122.88 MHz	250 MHz	125 MHz
System memory	Micro SD up to 32 GB	Micro SD up to 32 GB	Micro SD up to 32 GB	Micro SD up to 32 GB	Micro SD up to 32 GB	Micro SD up to 32 GB
Serial console connector	Micro USB	Micro USB	Micro USB	Micro USB	USB-C	3-pin connector (Not populated)
Power connector	Micro USB	Micro USB	Micro USB	Micro USB	Power Jack, RJ45 (PoE version only)	Micro USB
Power consumption	5 V, 2 A max	5 V, 2 A max	5 V, 2 A max	5 V, 2 A max	24 V, 0.5 A max	5 V, 1.5 A max
Connectivity
Ethernet	1 Gbit	1 Gbit	1 Gbit	1 Gbit	1 Gbit	1 Gbit
USB	USB-A 2.0	USB-A 2.0	USB-A 2.0	USB-A 2.0	USB-A 2.0 (2x)	USB-A 2.0
Wi-Fi	requires Wi-Fi dongle	requires Wi-Fi dongle	requires Wi-Fi dongle	requires Wi-Fi dongle	requires Wi-Fi dongle	requires Wi-Fi dongle
RF inputs
RF input channels	2	2	4	2	2	2
Sample rate	125 MS/s	125 MS/s	125 MS/s	122.88 MS/s	250 MS/s	125 MS/s
ADC resolution	14 bit	14 bit	14 bit	16 bit	12 bit	10 bit
Input impedance	1 MΩ / 10 pF	1 MΩ / 10 pF	1 MΩ / 10 pF	50 Ω	1 MΩ	1 MΩ / 10 pF
Full scale voltage range	±1 V (LV) ±20 V (HV)	±1 V (LV) ±20 V (HV)	±1 V (LV) ±20 V (HV)	0.5 Vpp/-2 dBm	±1 V ±20 V (SW selectable)	±1 V (LV) ±20 V (HV)
Input coupling	DC	DC	DC	AC	AC / DC (SW selectable)	DC
Absolute max. Input voltage [1]	LV ±6 V HV ±30 V	LV ±6 V HV ±30 V	LV ±6 V HV ±30 V	DC max 50 V (AC-coupled) 1 Vpp for RF	LV ±6 V HV ±30 V	LV ±6 V HV ±30 V
Input ESD protection	1500 VDC	1500 VDC	1500 VDC	No	1500 VDC	1500 VDC
Overload protection	Protection diodes	Protection diodes	Protection diodes	DC voltage protection	Protection diodes	Protection diodes
Bandwidth	DC - 60 MHz	DC - 60 MHz	DC - 60 MHz	300 kHz - 550 MHz (undersampling)	DC - 60 MHz	DC - 50 MHz
Connector type	SMA	SMA	SMA	SMA	BNC	SMA
RF outputs
RF output channels	2	2	N/A	2	2	2
Sample rate	125 MS/s	125 MS/s	N/A	122.88 MS/s	250 MS/s	125 MS/s
DAC resolution	14 bit	14 bit	N/A	14 bit	14 bit	10 bit
Load impedance	50 Ω	50 Ω	N/A	50 Ω	50 Ω / Hi-Z	50 Ω
Voltage range	±1 V	±1 V	N/A	0.5 Vpp/ -2 dBm (50 Ω load)	±1 V @ 50 Ω (x1 scaling) ±2 V @ Hi-Z (x1 scaling) ±5 V @ 50 Ω (x5 scaling) ±10 V @ Hi-Z (x5 scaling)	±1 V
Output coupling	DC	DC	N/A	AC	DC	DC
Short circuit protection	Yes	Yes	N/A	No	Yes	Yes
Output slew rate	2 V / 10 ns	2 V / 10 ns	N/A	N/A	10 V / 17 ns	2 V / 10 ns
Bandwidth	DC - 60 MHz	DC - 60 MHz	N/A	300 kHz - 60 MHz	DC - 60 MHz	DC - 50 MHz
Connector type	SMA	SMA	N/A	SMA	BNC	SMA
Extension connector
Digital IOs	16	22	22	22	19	16
Digital voltage levels	3.3 V	3.3 V	3.3 V	3.3 V	3.3 V	3.3 V
Analog inputs	4	4	4	4	4	4
Analog input voltage range	0 - 7.0 V	0 - 7.0 V	0 - 7.0 V	0 - 7.0 V	0 - 7.0 V	0 - 7.0 V
Analog input resolution	12 bit	12 bit	12 bit	12 bit	12 bit	12 bit
Analog input sample rate	100 kS/s	100 kS/s	100 kS/s	100 kS/s	100 kS/s	100 kS/s
Analog outputs	4	4	4	4	4	4
Analog output voltage range	0 - 1.8 V	0 - 1.8 V	0 - 1.8 V	0 - 1.8 V	0 - 1.8 V	0 - 1.8 V
Analog output resolution	8 bit	8 bit	8 bit	8 bit	8 bit	8 bit
Analog output sample rate	≲ 3.2 MS/s	≲ 3.2 MS/s	≲ 3.2 MS/s	≲ 3.2 MS/s	≲ 3.2 MS/s	≲ 3.2 MS/s
Analog output bandwidth	≈ 160 kHz	≈ 160 kHz	≈ 160 kHz	≈ 160 kHz	≈ 160 kHz	≈ 160 kHz
Communication interfaces	I2C, SPI, UART, CAN	I2C, SPI, UART, CAN	I2C, SPI, UART, CAN	I2C, SPI, UART, CAN	I2C, SPI, UART, CAN, USB	I2C, SPI, UART, CAN
Available voltages	+5 V, +3V3, -3V4	+5 V, +3V3, -4 V	+5 V, ±3V3	+5 V, +3V3	+5 V, +3V3, -5V4	+5 V, +3V3, -3V4
External ADC clock	Ext. clock models only [2]	Ext. clock models only [2]	Yes	Ext. clock models only [2]	Yes	N/A
Synchronisation
External trigger input	E1 connector (DIO0_P)	E1 connector (DIO0_P)	E1 connector (DIO0_P)	E1 connector (DIO0_P)	BNC connector	E1 connector (DIO0_P)
External trigger input impedance	Hi-Z (digital input)	Hi-Z (digital input)	Hi-Z (digital input)	Hi-Z (digital input)	10 kΩ (HW_rev 1.0-1.2a) 1 kΩ (HW_rev 1.2b)	Hi-Z (digital input)
Trigger output [3]	E1 connector (DIO0_N)	E1 connector (DIO0_N)	E1 connector (DIO0_N)	E1 connector (DIO0_N)	E1 connector (DIO0_N)	E1 connector (DIO0_N)
Daisy chain connectors (S1 & S2)	Yes	Yes	Yes	Yes	Yes	N/A
Daisy chain connectors speed	up to 500 Mb/s	up to 500 Mb/s	up to 500 Mb/s	up to 500 Mb/s	up to 500 Mb/s	N/A
Daisy chain connectors type	SATA	SATA	SATA	SATA	eSATA	N/A
Ref. clock input	N/A	N/A	Yes (HW mod.)	N/A	Yes	N/A
Ref. clock frequency	N/A	N/A	10 MHz (HW mod.)	N/A	10 MHz	N/A
Ref. clock connector type	N/A	N/A	2-pin header	N/A	SMA (back panel)	N/A
Boot options
SD card	Yes	Yes	Yes	Yes	Yes	Yes
QSPI	Not populated	Not populated	Not populated	Not populated	N/A	N/A
eMMC	N/A	N/A	N/A	N/A	N/A	N/A
Environmental Specifications
Operating Temperature Range [4]	0 to 55℃	0 to 55℃	0 to 55℃	0 to 55℃	0 to 55℃	0 to 55℃
Operating Humidity Range	< 90% RH	< 90% RH	< 90% RH	< 90% RH	< 90% RH	< 90% RH
Automatic Shutdown Temperature	85℃	85℃	85℃	85℃	85℃	85℃

Warning

Maximum Input Voltage (SDRlab only)

• RF signal: 1 Vpp maximum (0.5 Vpp nominal)

• DC voltage: up to 50 V (inputs are AC-coupled — DC will not pass to the ADC)

Exceeding the RF input level may damage the board permanently.

Warning

Maximum Input Voltage

• LV mode: ±6 V absolute maximum

• HV mode: ±30 V absolute maximum

Exceeding these values may damage the board permanently.

Footnotes

[1]

The absolute maximum input voltage values are for frequencies below 1 kHz. For higher frequencies, please use the input voltage range specifications as Absolute maximum.

[2] (1,2,3)

See the External Clock board models for more information.

[3]

See the X-channel 2.0 (Click Shield) synchronisation and X-channel 2.0 (Click Shield) synchronisation examples for trigger output configuration.

[4]

With default heatsinks. Higher temperatures may be possible with custom cooling solutions, but the board will automatically shut down at 85℃ to prevent damage.