CA3126E Harris Corporation, CA3126E Datasheet

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CA3126E

Manufacturer Part Number
CA3126E
Description
TV chroma processor
Manufacturer
Harris Corporation
Datasheet

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Company
Part Number
Manufacturer
Quantity
Price
Part Number:
CA3126E
Quantity:
200
Part Number:
CA3126E
Manufacturer:
HARRIS
Quantity:
20 000
Company:
Part Number:
CA3126E
Quantity:
550
May 1999
CAUTION: These devices are sensitive to electrostatic discharge. Users should follow proper IC Handling Procedures.
Copyright
Features
• Phase Locked Subcarrier Regeneration Utilizes
• Automatic Chrominance Control (ACC)/Killer Detector
• Supplementary ACC with an Overload Detector to
• Sinusoidal Subcarrier Output
• Keyed Chroma Output
• Emitter Follower Buffered Outputs for Low Output
• Linear DC Saturation Control
Applications
• TV/CATV Receiver Circuits
• NTSC Color Decoder/Processor
• Computer Graphics Subcarrier Regenerator
• Timing Reference for Frame Grabbers
• DSP Clock Timing Reference Source
Pinouts
Sample-and-Hold Techniques
Employs Sample-and-Hold Techniques
Prevent Oversaturation of this Picture Tube
Impedance
AFPC FILTER +
AFPC FILTER -
©
CARRIER OUT
CHROMA IN
Harris Corporation 1999
RF BYPASS
VCO OUT
GROUND
VCO IN
1
2
3
4
5
6
7
8
TOP VIEW
CA3126
(PDIP)
16
15
14
13
12
11
10
9
CHROMA GAIN CONT.
CHROMA OUT
ZENER REF
OVERLOAD DET.
V+
ACC+
ACC-
HORIZ. KEY IN
8-33
Description
The Harris CA3126 is a monolithic silicon integrated circuit
designed for TV chroma processing and is ideally suited for
NTSC color graphic applications that require subcarrier
regeneration of the color burst signal.
Part Number Information
CA3126E
CA3126M1
PART NUMBER
AFPC FILTER +
AFPC FILTER -
CHROMA IN
RF BYPASS
VCO OUT
GROUND
VCO IN
NC
NC
NC
10
1
2
3
4
5
6
7
8
9
RANGE (
-40 to 85
-40 to 85
TEMP.
CA3126
TOP VIEW
TV Chroma Processor
CA3126
(SOIC)
o
C)
16 Ld PDIP
20 Ld SOIC
PACKAGE
20
19
18
17
16
15
14
13
12
11
File Number
CHROMA GAIN CONT.
CHROMA OUT
NC
ZENER REF
OVERLOAD DET.
V+
ACC +
ACC -
HORIZ. KEY IN
CARRIER OUT
E16.3
M20.3
PKG.
NO.
860.5

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CA3126E Summary of contents

Page 1

... The Harris CA3126 is a monolithic silicon integrated circuit designed for TV chroma processing and is ideally suited for NTSC color graphic applications that require subcarrier regeneration of the color burst signal. Part Number Information PART NUMBER CA3126E CA3126M1 CHROMA IN CHROMA GAIN CONT. 16 AFPC FILTER + ...

Page 2

Absolute Maximum Ratings DC Supply Voltage (V+ to GND) (Note 1 13.2V DC Current: Into V+ Pin . . . . . . . ...

Page 3

Test Circuit 10k V REG 3.9k CW 47k 10k 1 F CCW 16 15 CHROMA GAIN CONTROL 0. 2.45k 0 CHROMA 50 INPUT SIGNAL Pin numbers ...

Page 4

Block Diagram RF BYPASS 0.01 F SHIFTER CHROMA INPUT 2.45k SHIFTER 0. CHROMA TERM. 12 INPUT FIRST 1 CHROMA CW AMPL. CHROMA GAIN CONTROL 50k 2 F CCW 1.2k KILLER FILTER ACC AMPL. 5 GND ...

Page 5

Schematic Diagram FIRST CHROMA AMPLIFIER 300 300 700 700 1.5K 1 500 CHROMA INPUT 500 250 2.2K ...

Page 6

Schematic Diagram (Continued) AFPC FILTER 2 A BALANCED PHASE SHIFTER 12pF BALANCE - ...

Page 7

Application Information Circuit Description (Pin numbers refer to the DIP package.) The following paragraphs briefly describe the circuit operation of the CA3126 (shown in the Block Diagram and Schematic Diagram). A detailed description of the operation of various portions of ...

Page 8

Figure 2. It should be noted that the slope of the curve determines the DC gain of the phase-locked loop, i.e., ...

Page 9

INPUT FILTER TYP. 0.5V P-P 82pF 68pF 56 L1 500 2.4k COMPOSITE 0.01 F VIDEO/CHROMA INPUT 1 11.2V ZENER REF NOTE: For Subcarrier Regenerator, the second chroma amp is not used; Pins 13,14, ...

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