2 Channel Comparator, NECL Outputs, NIM-Compatible Inputs

SKU: PRL-350ECL-NIM

$ 1,290.00

Item	Description
88000102-4	Cable, triple voltage, with modular plugs, Length in ft.
88000103-4	Cable, triple voltage, with modular plug and pig tail leads, Length in ft.

Product Description
Diagrams
Applications
Specifications
Documents

Applications:

Window Comparators
High Speed Timing
Line Receivers
Threshold Detection
Peak Detection
PON Module testing with Anritsu MP1800A

Features:

f_max > 1000 MHz
750 ps Typical t_r
+400 mV, 0 V or -400 mV Preset Input Threshold Voltage
-2.0 V to +3.0 V Input Common Mode Range
10 mV_PP Minimum Input @ 300 MHz.
DC Coupled 50 Ω Inputs
Complementary NECL Outputs
SMA I/O Connectors
Self-contained units include AC/DC Adapters

Description

The PRL-350ECL-NIM is a ready-to-use, high speed dual-channel comparator module. The PRL-350ECL-NIM has a maximum clock frequency in excess of 1 GHz and has complementary NECL outputs designed for driving 50 Ω transmission lines terminated to 50 Ω/-2 V.

Both channels have a DC coupled 50 Ω input. The input threshold voltage can be selected either from a set of preset values of -400 mV, 0 V or +400 mV using a common three-position switch. The input Common Mode Range is -2.0 V to +3.0 V.

The input threshold voltage can also be varied independently in each channel by applying an external DC bias voltage or shunt resistor to the D input.

If the external DC bias has a sufficiently low output impedance, it will over-ride the internally-generated V_TH, and the toggle switch setting is a don’t-care.
For an external shunt resistor, the effective threshold voltage, V_THE, will be the result of the resistor-divider network formed by the external shunt resistor and the internal 50 Ohm termination to the selected V_TH.
In the following example, the internal V_THis set to +50 mV, and it is pulled down to an effective V_THEof +10 mV via a 12.5 Ω shunt resistor:
To prevent oscillation, the external shunt resistor should be placed as close as possible to the D input, e.g. by using the male end of the PRL-PINET-SMF or similar device.

This high speed comparator is a Mini Modular Instrument™ that can be used as peak detector, threshold detector, sine wave to square wave converter, window comparator or differential line receiver, etc. Typical minimum input voltage required at 300 MHz is 10 mV_PP into 50 Ω.

Each unit is supplied with a ±8.5 V AC/DC Adapter and housed in an attractive 1.3 x 2.9 x 3.9-in. extruded aluminum enclosure.

* Although the PRL-350ECL-NIM typically operates up to 2 GHz, the internal device is specified at 1 GHz by the device manufacturer; therefore the guaranteed f_MAX is 1 GHz.

(0° C ≤ T_A ≤ 35° C)*

Unless otherwise specified, dynamic measurements are made with all outputs terminated into 50 Ω/V_TT, where V_TT = -2 V for NECL outputs.

Symbol	Parameter	PRL-350ECL-NIM			Unit
Symbol	Parameter	Min	Typ	Max	Unit
R_IN	Input Resistance	49.5	50	50.5	Ω
R_OUT	Output Resistance	NPN emitter			Ω
V_TH+	Preset positive threshold voltage	396	400	404	mV
V_TH-	Preset negative threshold voltage	-404	-400	396	mV
V_TH0	Preset zero threshold voltage⁽¹⁾	-2	0	2	mV
V_OL	Output Low Level	-2	-1.6	-1.5	V
V_OH	Output High Level	-1	-0.8	-0.6	V
I_DC	DC Input Current		36/ -136	45/ -145	mA
V_DC	DC Input Voltage	±7.5	±8.5	±12	V
V_AC	AC/DC Adapter Input Voltage	103	115	127	V
t_PLH	Propagation Delay to output↑		1.5		ns
t_PHL	Propagation Delay to output↓		1.5		ns
t_r/t_f	Rise/Fall Times⁽²⁾		750	850	ps
t_SKEW	Skew between any 2 outputs		100	300	ps
V_in I	Minimum Input Voltage @ 150 MHz⁽³⁾	20	10		mV_PP
V_in II	Minimum Input Voltage @ 250 MHz⁽³⁾	20	10		mV_PP
V_in III	Minimum Input Voltage @ 1 GHz	250	100		mV_PP
V_CM	Input Common Mode Range		-2.0/+3.0		V
f_max	Max. Clock Frequency⁽⁴⁾	1000	2000		MHz
	Size	1.3 x 2.9 x 3.9			in.
	Weight, w/o AC adapter	7			Oz
	Shipping weight, w/AC adapter	4			lb

(1) If the switch is set to the center position (0 V threshold) a non-driven channel will oscillate and induce jitter in the driven channel. Connect any output to any input to stop the oscillation.

(2) 20%-80% for NECL. For the PRL-350ECL-NIM, an unused complementary output must be either terminated into 50 Ω/V_TT or AC coupled into a 50 Ω load; otherwise, output waveform distortion and rise time degradation will occur. Use the PRL-ACT-50 Dual Channel AC-Coupled 50 Ω Termination for terminating unused complementary outputs. Use the PRL-550NQ4X, four channel NECL Terminator for the 50 Ω/V_TT termination and for connection of NECL signals to 50 Ω input oscilloscopes. If preservation of DC levels is not required, then the PRL-SC-104A, 0.1 µf DC block or a 12 dB AC-coupled attenuator may be used to connect the NECL outputs to 50 Ω input instruments.

(3) In order to reduce jitter near f_MAX, terminate the non-driven input into 50 Ω when the input voltage is less than 20 mV_PP.

(4) Although the PRL-350ECL-NIM typically operates up to 2 GHz, the internal device is specified at 1 GHz by the device manufacturer; therefore the guaranteed f_MAX is 1 GHz.

2 Channel Comparator, NECL Outputs, NIM-Compatible Inputs

Applications:

Features:

Description

* Although the PRL-350ECL-NIM typically operates up to 2 GHz, the internal device is specified at 1 GHz by the device manufacturer; therefore the guaranteed f_MAX is 1 GHz.

Anritsu Application Note for PON Module Testing with Anritsu MP1800A
Signal Quality Analyzer and PRL-350 Series Comparators (1.1 MB PDF)

BERT Level Translation

(0° C ≤ T_A ≤ 35° C)*

2 Channel Comparator, NECL Outputs, NIM-Compatible Inputs

Applications:

Features:

Description

* Although the PRL-350ECL-NIM typically operates up to 2 GHz, the internal device is specified at 1 GHz by the device manufacturer; therefore the guaranteed fMAX is 1 GHz.

Anritsu Application Note for PON Module Testing with Anritsu MP1800ASignal Quality Analyzer and PRL-350 Series Comparators (1.1 MB PDF)

BERT Level Translation

(0° C ≤ TA ≤ 35° C)*

You might also like

* Although the PRL-350ECL-NIM typically operates up to 2 GHz, the internal device is specified at 1 GHz by the device manufacturer; therefore the guaranteed f_MAX is 1 GHz.

Anritsu Application Note for PON Module Testing with Anritsu MP1800A
Signal Quality Analyzer and PRL-350 Series Comparators (1.1 MB PDF)

(0° C ≤ T_A ≤ 35° C)*