APPENDIX A
1.2 CONFIGURATION/SPECIFICATIONS
ASSEMBLY 21057 (TM OPTION 45A)
One BNC input (J1) and Three BNC outputs (J2, J3, and J4).
• The output of this 1:1 buffer is dependent on the input.
• With a sinusoidal input of 1MHz to 10MHz, the outputs can be … 1 VRMS (three
volts peak-to-peak) terminated into 50Ω.
• With a TTL input (or pulse rates selected) the outputs will be TTL levels when
terminated into 50Ω.
ASSEMBLY 21057-1 (TM OPTION 45A)
Same as Assembly 21057 except that 10kpps is generated instead of 20kpps.
ASSEMBLY 21057-2 (TM OPTION 45B)
One BNC input (J1) and Three Twinax outputs (J2, J3, and J4).
• With a one volt peak-to-peak sinusoidal input, the transformer coupled outputs have
a flat frequency response from approx. 100Hz to 250Khz when
terminated into a 75Ω resistive load.
• With a four volt peak-to-peak sinusoidal input, the transformer coupled outputs have
a flat frequency response from approx. 350Hz to 230Khz when
terminated into a 75Ω resistive load.
• This assembly is not intended to be used with pulse rates.
• The suggested mating connector for the Twinax connector is Amphenol part
number 31-224 or equivalent.
ASSEMBLY 21057-3 (TM OPTION 45C)
One BNC input (J1) and Three Twinax outputs (J2, J3, and J4).
• With TTL level pulse rate inputs (or pulse rates selected to be generated),
this assembly will output RS-422 differential outputs.
• This assembly is not intended to be used with sinusoidal inputs.
A-58 TM7000 TymMachine TCG/T (Rev D) Symmetricom, Inc.
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