NTE875 Datasheet, PDF (1/4 Pages) NTE Electronics – Integrated Circuit Video IF Amplifier/PLL Detector System

NTE875
Integrated Circuit
Video IF Amplifier/PLL Detector System
Description:
The NTE875 is a complete video IF signal processing system on a single 28–Lead DIP type package.
This device contains a 5–stage gain–controlled IF amplifier, a PLL synchronous amplitude detector,
self–contained gated AGC, and a switchable AFC detector. The increased flexibility of the NTE875
makes it suitable for a wide variety of television applications where high quality video or sound carier
recovery is required. These include home receiver video IFs, cable and subscription TV decoders,
and parallel sound IF/intercarrier detector systems. Typical operating frequencies are 38.9MHz,
45.75MHz, 58.75MHz, and 61.25MHz.
Features:
D Low Differential Gain and Phase
D IF and Detector pin Compatible with NTE878 (Discontinued)
D Common–Base IF Inputs for SAW Filters
D True Synchronous Video Detector using PLL (Phase Lock Loop)
D Excellent Stability at High System Gains
D Noise–Average Gated AGC System
D Uncommitted AGC Comparator Input
D Internal AGC Gate Generator
D Superior Small–Signal Detector Linearity
D AFC Detector with Adjustable Output Bias
D 9MHz Video Bandwidth
D Reverse Tuner AGC Output
Absolute Maximum Ratings:
Power Supply Voltage, V₂ . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15V
IF Supply Current, I₅ . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 60mA
AGC Gate Voltage, V₁₄ . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ±5V
Video Output Current, I₁₆ . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10mA
Phase Lock Loop (PLL) Filter Current, I₁₈ . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5mA
Detector Input Signal, ν_DET . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1V_rms
Power Dissipation, P_D . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2W
Thermal Resistance, Junction–to–Ambient, R_thJA . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 50°C/W
Junction Temperature, T_J . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . +125°C
Operating Temperature Range, T_opr . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 0°C to +70°C
Storage Temperature Range, T_stg . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . –65°C to +150°C
Lead Temperature (During Soldering, 10sec), T_L . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . +260°C