TB 9-6625-2338-24
(42) Connect oscilloscope Vertical 1 input to +CD output.
(43) Press and hold down the TI BSP key then press and release the TI OUTPUT
key until TI display indicates Offset CD
###.
(44) Release the TI BSP key.
(45) Use the TI left/right (4, 6) and the up/down (8, 2) cursor control keys to adjust
the displayed value until the V top measured value displayed on the oscilloscope is equal to
0.0 mV r 10 mV (R).
(46) Disconnect oscilloscope Vertical 1 input from +CD output.
(47) Connect oscilloscope Vertical 1 input to CD output.
(48) Press and hold down the TI BSP key then press and release the TI OUTPUT
key until TI display indicates Offset CD
###.
(49) Release the TI BSP key.
(50) Use the TI left/right (4, 6) and the up/down (8, 2) cursor control keys to adjust
the displayed value until the V top measured value displayed on the oscilloscope is equal to
0.0 mV r 10 mV (R).
11. Risetime
a. Performance Check
(1) Connect TI T0 output to oscilloscope Vertical 1 input.
(2) Press TI keys as listed in (a) through (d) below:
Press RECALL, 0, EXC.
(a)
4 (cursor left), 4.
(b)
TRIG, NUM/REM, 1000000, EXC.
(c)
OUTPUT, OUTPUT, OUTPUT, 6, 6.
(d)
(3) Set oscilloscope to perform risetime measurement and measure TI T0 ECL
risetime. Measured risetime will be within limits specified in first row of table 6.
(4) Set TI T0 output mode to TTL by pushing; 4, 4.
(5) Measure TI T0 TTL risetime. Measured risetime will be within limits specified
in second row of table 6.
(6) Disconnect oscilloscope Vertical 1 input from T0 output and connect to A output.
(7) Repeat technique of (3) through (6) above for outputs and modes listed in table 6.
Measured risetime will be within specified limits.
b. Adjustments: No adjustments can be made.
