NTE842
Integrated Circuit
Television Video IF Amplifier,
Sync Separator, and AGC Processor
Description:
The NTE842 is a monolithic silicon integrated circuit in a 16鈥揕ead DIP type package designed to per-
form IF amplification, tuner AGC, and composite sync鈥搒eparation functions in color or monochrome
TV receivers.
PIN diodes are used in the IF amplifiers for gain control, resulting in increased dynamic range and
better signal鈥搕o鈥搉oise ratio.
Features:
D
High鈥揋ain Wide鈥揃and IF Amplifiers
D
Sample鈥揳nd鈥揌old Keyed AGC
D
Composite Sync Separator with Noise Immunity
D
Fast AGC using PIN Diodes
D
Gain Reduction with Excellent Stability
D
Internal Varactor Pole Shift at Max Gain
Absolute Maximum Ratings:
DC Supply Voltage, V
CC
Between Pin11 and Pin3, Pin13 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14V
Between 24K connected to Pin6 and Pin3, Pin13 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25V
DC Supply Current, I
C
At Pin1 + Pin2 + Pin11 + Pin14 at Max. Gain . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 60mA
At Pin (Open Collector) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2mA
Device Dissipation (T
A
鈮?/div>
+55擄C), P
D
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 750mW
Derate Above +55擄C . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7.9mW/擄C
Operating Ambient Temperature Range, T
opr
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 鈥?0擄 to +85擄C
Storage Temperature Range, T
stg
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 鈥?5擄 to +150擄C
Lead Temperature (During Soldering, 1/16鈥?from case, 10sec max), T
L
. . . . . . . . . . . . . . . . . +265擄C
1
2
3
4
