T124 1 to 4 logic buffer

Logic Buffer - T124
  • Four short-circuit protected outputs with selectable non-inverting, inverting, or differential drive
  • Switchable 50 Ω or high-impedance termination for the input
  • Switchable 50 Ω or low-impedance source for the 4 outputs
  • Output voltage switchable between +3.3V or +5V
  • 10 MHz input bandpass filter for use as a clock distribution amplifier
  • Standard +12-volt DC power supply
  • Compact, rugged extruded anodized aluminum enclosure with removable mounting flange
  • Distribution of fast logic signals from DC to 100 MHz
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The T124 logic buffer provides a fast 1 to 4 fanout buffer/inverter for digital logic signals. Input features a switchable 50R or high-impedance termination, as well as a switchable 10MHz bandpass filter for use as a clock distribution amplifier. Outputs can be switched between a low-impedance or 50R source, and the output high voltage is switchable between 3.3V and 5V. The short-circuit protected outputs can be used for any digital logic distribution application.

Logic Mode Specifications
FUNCTION 1 to 4 fanout buffer for digital logic signals
INPUT VLIM: -0.3 V to +6 V
VH: > +1.3 V
VL: < +1.1 V
Termination: 50 Ω or High Impedance
OUTPUTS Four outputs
+5V Operation:
VH1 Lo-Z: +5.14 V RL = 10 KΩ
VH2 Lo-Z: +5.12 V RL = 1 KΩ
VH3 Lo-Z: +4.90 V RL = 50 Ω
VH4 50 Ω: +5.14 V RL = 10 KΩ
VH5 50 Ω: +4.80 V RL = 1 KΩ
VH6 50 Ω: +2.60 V RL = 50 Ω
+3.3V Operation:
VH1 Lo-Z: +3.39 V RL = 10 KΩ
VH2 Lo-Z: +3.38 V RL = 1 KΩ
VH3 Lo-Z: +3.07 V RL = 50 Ω
VH4 50 Ω: +3.38 V RL = 10 KΩ
VH5 50 Ω: +3.23 V RL = 1 KΩ
VH6 50 Ω: +1.70 V RL = 50 Ω
VL: 0 V
OUTPUT RISE TIME 700 ps, typical
OUTPUT FALL TIME 700 ps, typical
TRANSITION FREQUENCY 100 MHz, maximum
JITTER < 12 ps, typical
PROPAGATION DELAY 10 ns, typical
10 MHz Clock Distribution Amplifier Mode Specifications
FUNCTION 10 MHz clock distribution amplifier
INPUT 10 MHz sine or square wave
INPUT TERMINATION 50 Ω or High Impedance
INPUT AC SIGNAL +0.250 mVp-p to +5 Vp-p
INPUT DC LIMITS Vmax: +5 VDC
Vmin: 0 VDC
OUTPUTS Four outputs 10 MHz square wave
Voltage: +5V or +3.3V
Impedance: Low impedance or 50 Ω
OUTPUT RISE TIME 700 ps, typical
OUTPUT FALL TIME 700 ps, typical
JITTER < 12 ps, typical
General Specifications
OPERATING TEMPERATURE 0 to 60°C
STORAGE TEMPERATURE -40 to 70°C
POWER +12 VDC typical (11.5 to 13.5 V)
Nominal 200 mA
Highland Technology J12 wall-wart recommended
CONNECTORS 6 SMB connectors
1 securable 2.1 x 5.5 mm power barrel connector with center pin positive
PACKAGING 4.75" (L) x 4.05" (W) x 1.25" (H) Extruded Anodized Aluminum enclosure
INDICATORS LEDs indicate power, input signal and output short failure

PDF Block Diagram: T124 1 to 4 logic buffer

PDF Manual: T124 1 to 4 logic buffer

T124-1: 1 to 4 logic buffer

J12-1: 12 volt power supply

J14-1: International plug adapter set for J12

J27-1: 2.1 x 5.5 mm barrel to pigtail power cable

J41-1: 3' SMB to SMB cable

J41-2: 6" SMB to SMB cable

J53-1: 3' SMB to BNC cable

J53-2: 6" SMB to BNC cable

J730: single-channel compact fiberoptic-to-electrical converter

T566: mounting flange