Order this document by MC1377/D
MC1377 Color Television RGB to PAL/NTSC Encoder
The MC1377 will generate a composite vi...
Order this document by MC1377/D
MC1377 Color Television RGB to PAL/NTSC Encoder
The MC1377 will generate a composite video from baseband red, green, blue, and sync inputs. On board features include: a color subcarrier oscillator; voltage controlled 90° phase shifter; two double sideband suppressed carrier (DSBSC) chroma modulators; and RGB input matrices with blanking level clamps. Such features permit system design with few external components and accordingly, system performance comparable to studio equipment with external components common in receiver systems. Self–contained or Externally Driven Reference Oscillator
COLOR TELEVISION RGB to PAL/NTSC ENCODER
SEMICONDUCTOR TECHNICAL DATA
Chroma Axes, Nominally 90° (±5°), are Optionally Trimable PAL/NTSC Compatible Internal 8.2 V
Regulator
20 1
P SUFFIX PLASTIC PACKAGE CASE 738
20 1
DW SUFFIX PLASTIC PACKAGE CASE 751D (SO–20L)
ORDERING INFORMATION
Device MC1377DW MC1377P Operating Temperature Range TA = 0° to +70°C Package SO–20L Plastic DIP
Figure 1. Representative Block Diagram
Quad Decoup 19 VCC 14 VB 16
Oscout
18 Oscillator Buffer Voltage Controlled 90° 8.2V
Regulator PAL Switch 0/180° Chroma Amp 13 Chroma Out
17 Oscin
H/2 20 NTSC/PAL Select PAL/NTSC Control Burst Pulse Driver
90° R–Y
0° B–Y B–Y Clamp
10 11
Chroma In
B–Y Clamp
R–Y Gnd 15 Latching Ramp Generator Dual Comparator Color Difference and Luminance Matrix
B–Y –Y
R–Y Clamp
12
R–Y Clamp
Output Amp/ Clamp 2 Composite Sync Input 3 R G In...