2 Ch. Universal Differential Receiver, TTL Outputs


$ 1,229.35


  • Differential LVDS, RS422, LVPECL, NECL, PECL or TTL to TTL Logic Level Translation
  • Differential line driver/receiver
  • Conversion of Differential Signals to Single-Ended Ground-Referenced Signals
  • Essential Lab Tools for interfacing with High Speed Data Communications Equipment


  • 300 MHz Maximum Clock Rate
  • Floating 100 Ω Universal Differential Inputs Accept LVDS, LVPECL, NECL, PECL, RS422 or TTL Inputs
  • Complementary 50 Ω TTL Outputs
  • Ready-to-Use 1.3 x 2.9 x 3.9-in. Modules include a ±8.5 V/1.8 A AC/DC Adapter


The PRL-425T is a dual channel, universal input differential receiver with TTL outputs. The floating 100 Ω inputs are designed for interfacing with differential signals within the common mode range of -2.4 V to +4.0 V. Therefore, they are compatible with LVDS, RS422, LVPECL, LVTTL/CMOS, NECL, PECL or TTL differential input signals. The PRL-425T has complementary TTL outputs for driving 50 Ω or open circuit loads. It is also a long line driver, designed specifically for use with high speed data communications applications. Functional block diagrams of these devices are shown in Fig. 1 and Fig. 2. Model numbers with suffix TR, such as PRL-425TTR, have Triax input connectors instead of SMA input connectors.

The PRL-425T is housed in a 1.3 x 2.9 x 3.9-in. extruded aluminum enclosure, and is provided with a ±8.5V AC/DC Adapter. Optional mounting brackets are available.

Fig. 1, PRL-425T, Dual Ch. Universal Receiver with TTL Outputs
Fig. 2, PRL-425TTR Dual Ch. Universal Receiver (Triax) with TTL Outputs

(0° C ≤ TA ≤ 35° C)*

Symbol Parameter PRL-425T UNIT Notes
Min Typ Max
RinD Differential Input Resistance 95 100 105 Ω  
RinC Common Mode Input Resistance   5K   Ω  
IDC1 DC Input Current, +8.5 V   175 185 mA  
IDC2 DC Input Current, -8.5 V   -365 -385 mA  
VDC DC Input Voltage ±7.5 ±8.5 ±12 V  
VAC AC/DC Adapter Input Voltage 103 115 127 V  
VOHNL Output Hi Level, No Load 4.0 4.6 5.0 V
VOHFL Output Hi Level, Full Load 2.0 2.3 2.5 V  
VOLNL Output Lo Level, No Load -0.1 0.0 0.4 V
VOLFL Output Lo Level, Full Load -0.05 0.0 0.2 V  
tPLH Propagation Delay to output ↑   2200   ps  
tPHL Propagation Delay to output ↓   2200   ps  
tr/tf Rise/Fall Times1 (10%-90%)   1000 1300 ps  
fMAX1 Maximum Clock Frequency SMA 250 300   MHz  
fMAX2 Maximum Clock Frequency Triax 250 300   MHz  
tSKEW1 Skew between outputs   500 1200 ps  
tSKEW2 Skew from unit to unit   750 1500 ps  
VCM Input Common Mode Voltage -2.4   +4.0 V  
  Size 1.3 x 2.9 x 3.9 in.  
  Weight, excluding AC adapter 7 Oz  
  Shipping weight, including AC adapter 4 lb  


All PRL products with Triax connectors use Trompeter P/N CBBJR79, Right Angle Circuit Board Bulkhead Jack, 3-lug (Numbered page 10, document page 11 of 142). Any Trompeter 70-series Triax Cable Plug with 3 lugs (e.g. PL75-9, 3-lug) will mate with CBBJR79.

While we believe these model to be accurate, no representations are made as to accuracy or suitability for any application: