LM1889
LM1889 is LM1889 TV Video Modulator manufactured by National Semiconductor.
- Part of the LM1 comparator family.
- Part of the LM1 comparator family.
Description
The LM1889 is designed to interface audio color difference and luminance signals to the antenna terminals of a TV receiver It consists of a sound subcarrier oscillator chroma subcarrier oscillator quadrature chroma modulators and RF oscillators and modulators for two low-VHF channels
The LM1889 allows video information from VTR’s games test equipment or similar sources to be displayed on black and white or color TV receivers When used with the MM57100 and MM53104 a plete TV game is formed
Features
Y dc channel switching Y 12V to 18V supply operation Y Excellent oscillator stability Y Low intermodulation products Y 5 Vp-p chroma reference signal Y May be used to encode posite video
Block Diagram
DC Test Circuit
Dual-In-Line Package
Order Number LM1889N See NS Package Number N18A
TL H 7917
- 1
C1995 National Semiconductor Corporation TL H 7917
TL H 7917
- 2 RRD-B30M115 Printed in U S A
Absolute Maximum Ratings
If Military Aerospace specified devices are required please contact the National Semiconductor Sales Office Distributors for availability and specifications
Supply Voltage V14 V16 max Power Dissipation Package (Note 1)
19 VDC 1800 m W
Operating Temperature Range
0 C to a70 C
Storage Temperature Range Chroma Osc Current I17 max
(V16
- V15) max (V14
- V10) max (V14
- V11) max Lead Temperature (Soldering 10 sec ) b55 C to a150 C 10 m ADC g5 VDC 7V 7V 260 C
DC Electrical Characteristics (dc Test Circuit All SW Normally Pos 1 VA e 15V VB e VC e 12V)
Symbol
Parameter
Conditions
Min Typ Max
IS DI15
Supply Current
Sound Oscillator Current Change
Change VA from 12 5 to 17 5V
20 35 45 03 06 09
V17 Chroma Oscillator Balance
9 5 11 0 12 5
V13 Chroma Modulator Balance
70 74...