MC13081X
6
MOTOROLA ANALOG IC DEVICE DATA
ELECTRICAL CHARACTERISTICS (continued)
(TA = 25
°
C, VCC = 8.0 Vdc)
Characteristic
Unit
Max
Typ
Min
Pin
Condition
VIDEO AMPLIFIERS
Emitter DC Level
Minimum Brightness
Nominal Brightness
Maximum Brightness
39, 34, 31
Vdc
V19 = 0 V
V19 = 2.5 V
V19 = 5.0 V
–
1.0
1.5
2.0
–
1.25
–
1.75
–
Crosstalk, Amplifier to Amplifier
Frequency = 10 MHz
39, 34, 31
–
34
–
dB
Output Rise Time
Output Fall Time
Vin = 0.7 Vpp; Vout = 3.0 Vpp
39, 34, 31
–
–
5.0
5.0
–
–
ns
PIN FUNCTION DESCRIPTION
Pin
Name
Equivalent Internal Circuit
Description
1
Vertical
Oscillator
Capacitor
Vertical
Ramp Gen
VCC
Switching
Control
1.0 k
5.0 V
I2
2.5 k
I2
I2
10.7
This capacitor should be 100 nF film type to give good
temperature stability.
2
Vertical Hold
Control
1
2
R2
C1
21.3
The potentiometer at Pin 2 adjusts the free running
frequency of the oscillator. It should normally be set
for about 55 Hz with no vertical signal input such that
it will lock to 60 Hz.
3
Vertical
Integrator
Capacitor
ICIS
VCC
C3
Switching
Control
ISID
1.0 k
3
The capacitor on this pin integrates the sync pulses
with a long time constant. C3 is typically 0.01
μ
F.
4
Vertical TTL
Sync
To Logic
2.0 V
4
5.0 V
22 k
10 k
Sync
Input
Vertical TTL Sync input. The input threshold voltage
at this pin is 2.0 V.
5
Horizontal TTL
Sync
To Logic
2.0 V
5
5.0 V
22 k
10 k
Sync
Input
Composite or Horizontal TTL Sync input. The input
threshold voltage at this pin is 2.0 V.
6
Composite
Video Input
5.0 V
10 k
68 k
To Sync
Separator
1.0 k
1.0 k
0.1
Comp
Input
6
This pin requires a coupling of min 100 nF. The
composite sync input should consist of –VE sync
signal only with amplitude > 500 mVpp.
The source impedance of the sync signal should be
<1.0 k
.
Sync information at Pin 5 will override this pin, but
signals at Pin 4 will not.
Minimum pulse width is 2.0
μ
s.
7, 8
N/C
These two pins are internally connected to each other,
and nothing else.