Intersil CA3217E Single chip tv chroma/luminance processor Datasheet

CA3217
®
May 1997
NO
C OM
T RE
M
ED F
END
OR
DES
NEW
S
IG N
Single Chip TV
Chroma/Luminance Processor
Features
Description
• All Chroma Processing and Demodulating Circuitry
on a Single Chip in a 28 Lead Plastic Package
• Balanced Chroma Demodulators with Low Output
Impedance for Direct Coupling
The Harris CA3217E (Note) is a monolithic silicon integrated
circuit. It contains all the required circuit functions between
the video detector and the picture tube RGB driver stages of
a color television receiver. The CA3217E decodes the
chrominance signals and then produces three different color
signals that are internally combined with the luminance to
develop the RGB signals. The picture saturation, hue and
brightness DC controls are externally adjustable by the
viewers. The AFPC, ACC, Dynamic flesh control, Beam
limiting and Gate black level (Brightness) control are servo
loops used to stabilize the RGB output and reduce frequent
manual adjustment. The automatic beam limiter circuit
reduces picture contrast and brightness to prevent
excessive drive output at the picture tube.
• Internal RF Filtering
NOTE: Formerly Developmental Type No. TA10806.
• Phase Locked Subcarrier Regeneration
Sample and Hold Techniques
Utilizing
• Supplementary ACC with Overload Detector to
Prevent Over Saturation of the Picture Tube
• Linear DC Controls for Chroma Gain and Tint
• Dynamic “Flesh Correction” - Corrects Purple and
Green Flesh Colors without Affecting Primary Colors
• Requires Few External Components
Ordering Information
• Automatic Beam Limiter
• Chroma Luminance Tracking Picture Control
PART
NUMBER
CA3217E
TEMPERATURE
RANGE
-40oC to +85oC
PACKAGE
28 Lead PDIP
Pinout
CA3217
(PDIP)
TOP VIEW
CHROMA OUT
1
28 BEAM LIMITER
CHROMA CONTROL
2
27 LUMINANCE
CHROMA INPUT
3
26 PICTURE CONTROL
OVERLOAD FILTER 4
25 LOW PASS FILTER
5
24 BRIGHT CONTROL
ACC, KILLER FILTER
6
23 VCC
SANDCASTLE PULSE
7
22 BLUE
GND
8
21 RED
9
20 GREEN
10
19 Q CARRIER IN
o
11
18 I CARRIER IN
o
12
17 DEMODULATOR CHROMA IN
OSCILLATOR OUT 13
16 OVERLOAD, FLESH DISABLE
APC FILTER
OSCILLATOR IN 90
OSCILLATOR IN 180
TINT CONTROL 14
CAUTION: These devices are sensitive to electrostatic discharge; follow proper IC Handling Procedures.
1-888-INTERSIL or 321-724-7143 | Intersil (and design) is a registered trademark of Intersil Americas Inc.
Copyright © Intersil Americas Inc. 2002. All Rights Reserved
7-65
15 CARRIER OUT
File Number
1332.3
Specifications CA3217
Absolute Maximum Ratings
Operating Conditions
DC Voltage (Between Terminals 23 and 8) . . . . . . . . . . . . . . . 14.0V
Power Dissipation
Up to TA = +55oC . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1.27W
Above TA = +55oC . . . . . . . . . . . . Derate Linearly at 13.3mW/oC
Junction Temperature (Plastic Package) . . . . . . . . . . . . . . . +150oC
Storage Temperature Range . . . . . . . . . . . . . . . . . -65oC to +150oC
Lead Temperature (Soldering 10s). . . . . . . . . . . . . . . . . . . . +300oC
Operating Temperature Range . . . . . . . . . . . . . . . . . -40oC to +85oC
CAUTION: Stresses above those listed in “Absolute Maximum Ratings” may cause permanent damage to the device. This is a stress only rating and operation
of the device at these or any other conditions above those indicated in the operational sections of this specification is not implied.
Electrical Specifications
TA = +25oC
TEST CONDITIONS
PARAMETERS
TEST
S2
S3
S4
S5
S6
mVP-P
mVP-P
CHROMA BURST IN
mVP-P
LUMA
RELAYS
ENERGIZED
MIN
TYP
MAX
48
66
UNITS
DC ELECTRICAL SPECIFICATIONS (Test 1 Through 5)
Dissipation
Pin 23
6.3V
11.2V 4.0V
6.3V
11.2V
Pin 1 Bal
XPT1
1.2V
11.2V 4.0V
6.3V
11.2V
10.5
VDC
Pin 3 Bal
XPT1
1.2V
11.2V 4.0V
6.3V
11.2V
2.2
VDC
Pin 17 Bal
XPT9
1.2V
11.2V 4.0V
6.3V
11.2V
3.0
VDC
Pin 13 Bal
XPT
13
1.2V
11.2V 4.0V
6.3V
11.2V
7.5
VDC
30
mA
SWITCHING ELECTRICAL SPECIFICATIONS (Tests 6 Through 26)
Oscillator Pull-In (Note 1)
“D”
6.3V
11.2V 4.0V
6.3V
11.2V
25
25
K4, K7
Oscillator Level
“D”
6.3V
11.2V 4.0V
6.3V
11.2V
0
0
K7
100% ACC (Note 2)
P21
Vary
11.2V 4.0V
6.3V
11.2V
125
125
200% ACC (Note 3)
P21
T8
11.2V 4.0V
6.3V
11.2V
250
250
20% ACC (Note 3)
P21
T8
11.2V 4.0V
6.3V
11.2V
25
25
-350
+350
Hz
0.7
VP-P
K4, K7
1.5
VP-P
K4, K7
100
%
K4, K7
90
%
Tint Center (Note 4)
S5
Vary
11.2V 4.0V
Vary
11.2V
250
125
K4, K7
6.5
VDC
R-Y Maximum
P21
11.2V 11.2V 6.0V
T11
11.2V
250
125
K1, K4, K7
6.0
VP-P
Unkill
P21
11.2V 11.2V 4.0V
T11
11.2V
25
12.5
K4, K7
4.5
Kill
P21
11.2V 11.2V 4.0V
T11
11.2V
25
2.5
K4, K7
Chroma Reserver
P21
11.2V 11.2V 4.0V
T11
11.2V
12.5
125
Maximum Luma (Note 5)
P21
11.2V 11.2V 4.0V
T11
11.2V
Luma Ratio (Note 6)
P21
11.2V
6.3V
4.0V
T11
Linearity (Note 7)
P21
11.2V
Vary
3.0
T11
T19 = T19/T18
P21
11.2V
T18
3.0
4.78MHz Response (Note 8)
P21
11.2V 11.2V 4.0V
Contrast Limit 1 (Note 9)
P24
11.2V 11.2V 4.0V
Contrast Limit 2 (Note 9)
P26
11.2V 11.2V 4.0V
T11
11.2V
250
K3, K5, K7
8.2
VDC
Bright Limit 1 (Note 10)
P24
11.2V 11.2V 4.0V
T11
11.2V
250
K3, K5, K7
3.1
VDC
Bright Limit 2 (Note 10)
P26
11.2V 11.2V 4.0V
T11
11.2V
250
K3, K5, K7
5.6
VDC
G-Y Ratio (Note 11)
P20
11.2V 4.0V
T11
11.2V
250
125
0.33
R
B-Y Ratio (Note 11)
P22
Vary
T25
11.2V 4.0V
T11
11.2V
250
125
1.20
R
VP-P
150
mVP-P
K2, K4, K7
2.0
VP-P
125
K1, K3, K7
2.2
VP-P
11.2V
125
K1, K3, K7
50
%
11.2V
425
K3, K7
4
VP-P
T11
11.2V
212.5
K3, K7
T11
11.2V
125
K3, K6, K7
T11
11.2V
250
K3, K5, K7
50
-3
%
3
3.9
dB
VDC
NOTES:
1. With K7 energized and frequency counter at D vary C1 for 3.579175MHz. Then with K4 energized, check for pull-in. Repeat for frequency
tuned to 3.579875MHz. For all other tests tune to 3.579545MHz ±10Hz.
2. Vary S2 for 1.5VP-P at Pin 21.
3. % of 100% ACC.
4. Adjust C1 for 3.579545MHz ±10Hz. Adjust S2 for 1.6VP-P at Pin 22 and 0 reference, then adjust S5 for minimum at P21. Read and record
S5 voltage.
5. Black to White.
6. T17 = T17/T16.
7. Adjust S3 for 4.0V P-P.
8. AC amplitude = 50mVP-P reference 15kHz.
9. Adjust beam limiter to 10.7V.
10. Adjust beam limiter to 9.8V.
11. Adjust S2 for 1.5VP-P at Pin 21, then calculate P20/P21 and P22/P21.
7-66
Specifications CA3217
Typical Performance of the CA3217E
FUNCTION
TYPICAL DATA
Nominal Supply
11.2V
Nominal Dissipation
500mW
Oscillator Stability
Supply Variation 10-14V
5Hz
Variation With Temperature (∆T = +50oC)
25Hz
AFPC Characteristics
DC Loop Gain
33Hz/Degree
Pull In Range
±500Hz
ACC Characteristics
100% Chroma Input Level
250mV P-P on Red Bar
3dB Point
At 20% Nominal Input Level
Hue Control Range
100o
Saturation Control Range
40dB (Min)
DEMODULATOR PARAMETERS
RELATIVE AMPLITUDE
ANGLE
R-Y
1.0
93o
B-Y
1.2
2o
G-Y
0.3
258o
Bandwidth (Chroma)
900kHz
Flesh Control
Primary Control in the +1 Half Plane
Chroma Overload Control
Two Levels
Picture Control
40dB
Brightness Control
Black Level Clamped on 3V to 5V Level
Beam Limiting
On Picture and Brightness Controls
Luma Bandwidth
5MHz (Min)
Sandcastle Input
1.2 - 2.3V
Blanking
>3.3V
Burst Gate
Maximum Linear Output
R
5V
G
3V
B
3.7V
7-67
CA3217
Functional Block Diagram
CA3217E
7-68
CA3217
Schematic Diagram
CA3217E
7-69
CA3217
Schematic Diagram (Continued)
CA3217E
7-70
CA3217
Test Circuit
FIGURE 1. TEST CIRCUIT FOR CA3217E
Typical Performance Curves
BRIGHTNESS = 4V, SATURATION = 6.3V
PIN 28 = 11.8V
5.5
PIN 21 LUMINANCE (VP-P)
14
PIN 21 BLACK LEVEL (V)
TA = +25 oC, LUMA INPUT = 0.5VP-P (30% SYNC)
TA = +25oC, LUMA INPUT = 0.5VP-P (30% SYNC)
CONTRAST = 6.3V, SATURATION = 6.3V
PIN 28 = 11.8V
12
10
8
6
4
2
4.5
3.5
2.5
1.5
0.5
0
2
4
6
BRIGHTNESS CONTROL (V)
8
0
10
2
4
6
8
10
12
14
CONTRAST CONTROL (V)
FIGURE 2. TYPICAL P 21 BLACK LEVEL VERSUS
BRIGHTNESS CONTROL
FIGURE 3. TYPICAL P 21 LUMINANCE OUTPUT vs CONTRAST
CONTROL
7-71
CA3217
Typical Performance Curves
TA = +25oC, LUMA = 0.5VP-P (30% SYNC)
HUE = 6.3V, SATURATION = 6.3V
PIN 1 CHROMA OUTPUT (mVP-P)
CONTROL VOLTAGE
12
(Continued)
10
CONTRAST PIN 26
8
6
BRIGHTNESS PIN 24
4
2
9
10
11
TA = +25o C, CHROMA INPUT = 250mVP-P
BURST = 125mVP-P, CONTRAST = 11.2V
2200 BRIGHTNESS = 4.0V, BEAM LIMITER = 11.8V
1800
1400
1000
600
200
0
12
10
4
6
8
SATURATION CONTROL (V)
2
PIN 28 BEAM LIMITER (V)
14
FIGURE 5. TYPICAL P1 CHROMA OUTPUT vs SATURATION
CONTROL
TA = +25oC, CHROMA INPUT = 250mVP-P
BURST = 125mVP-P, LUMA = 0.5VP-P (30% SYNCH)
HUE = 6.3V, BRIGHT = 4.0V, PIN 28 = 11.8V
1200
1000
3
LUMINANCE
PIN 21 OUTPUT
PIN 1 CHROMA OUTPUT (mVP-P)
FIGURE 4. TYPICAL BEAM LIMITER vs CONTRAST AND
BRIGHTNESS
12
800
600
400
0
2
4
10
6
8
CONTRAST CONTROL (V)
12
2
INITIAL CONDITION
ADJUST PIX CONTROL FOR 1VP-P
LUMA (BLK TO WHT)
1
TA = +25oC, CHROMA INPUT = 250mVP-P
SATURATION = 6.3V, BRIGHTNESS = 4V
BEAM LIMITER = 11.8V
200
CHROMA
ADJUST SAT. CONTROL FOR 1VP-P
RED (BLK TO PEAK)
14
2
FIGURE 6. TYPICAL P1 CHROMA OUTPUT vs CONTRAST
CONTROL
4
6
8
PICTURE CONTROL (V)
10
FIGURE 7. TYPICAL LUMA/CHROMA TRACK
7-72
12
CA3217
FIGURE 8. TYPICAL APPLICATION CIRCUIT
7-73
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