Electro-optical performance, Th7841a – Rainbow Electronics TH7841A User Manual
Page 5
5
TH7841A
1998A–IMAGE–05/02
Notes:
1. V
OS
= average video output voltage. Measurement excludes first and last pixels.
2. F
S
= 2F
Φ
T
. The minimum clock frequency is limited by the increase in dark signal.
Electro-optical
Performance
General measurement conditions: T
C
= 25°C; T
i
= 1 ms;
F
Φ
T
= 2.5 MHz.
Light source: tungsten filament lamp (2854 K) + BG 38 filter (2 mm thick) + F/3.5 aper-
ture. The filter limits the spectrum to 700 nm; in these conditions, 1 µJ/cm
2
corresponds
to 3.5 lux.s.
Typical operating conditions; internal clock mode (see Table 2).
First and last pixels, as well as reference elements, are excluded from the specification.
Measurements taken on each output in succession.
Table 4. Static and Dynamic Electrical Characteristics
Parameter
Symbol
Values
Unit
Note
Min
Typ
Max
DC Output Level
V
REF
8
10
12
V
Output Impedance
Z
S
500
Ω
Register Single-stage Transfer Efficiency
CTE
99.992
99.998
%
V
OS
= 1V
Max. Data Output Frequency
F
S
max.
12
20
MHz
Input Current on Pins: 3, 5, 10,11,12, 13,
18, 19, 20, 21, 25
Ie
2
µA
Ve = 15V
All other pins: 0V
Peak Current Sink on
Φ
T
Clock
(I
Φ
T
)
P
500
mA
t
rise
= 15 ns
Peak Current Sink on
Φ
P
Clock
(I
Φ
P
)
P
125
mA
t
rise
= 15 ns
Output Amplifier Drain Supply Current
I
DD
17
mA
V
INH
= 0V
V
DD
= 15V
Static Power Dissipation
P
D
255
300
mW
V
INH
= 0V
V
DD
= 15V