Realistic PRO-2021 - Page 13

KEYS ACCESS PULSE OUTPUT(IC11)
! |
بيه
"””.ა..ჯ"""""'"':""!ს!󰾰
م
| |
P30 — 7 -
P31 —] 1 Г
РЗ2 — L
! |
me
НН
| 1 | |
|
l ! | |
200,5-е4
ey
I
|
|
— 400 j=-—
1 #51
NOTE: Usea ЕМЕНІ at Pin 66 of IC11 as trigger, and then observe the keys access pulse when
IPROGRAM) key is pressed.
PLL DATA WAVEFORM(IC11)
з
нии
|
[3288 „| 32.8us н l 1221 Би! | биз 46us | 1. |1:265 |
DATA 3
(PIN68) N
і
78. je 78805 |,
Shift Register
Strobe — n d F o
(РІМ55)
PLL Latch Pulse
(PIN56) -—1f1n=5 І. م󰾯
——
8.78us
NOTE:
Enter
150.000
MHz
to
channel
1
and
lock
out
other
channels.
Observe
the waveforms
while
scanning.
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