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CA3217
Single Chip TV
March 1993 Chroma/Luminance Processor
Features Description
· All Chroma Processing and Demodulating Circuitry The Harris CA3217E* is a monolithic silicon integrated
on a Single Chip In a 28 Lead Plastic Package circuit. It contains all the required circuit functions between
the video detector and the picture tube RGB driver stages of
· Phase Locked Subcarrler Regeneration Utilizing Sam-
a color television receiver. The CA3217E decodes the
ple and Hold Techniques
chrominance signals and then produces three different color
· Supplementary ACC with Overload Detector to P..... signals that are internally combined with the luminance to
vent Over Saturation of the Picture TUbe develop the RGB signals. The picture saturation, hue and
brightness DC controls are externally adjustable by the
· Unear DC Controls for Chroma Gain and Tint viewers. The AFPC, ACC, Dynamic flesh control, Beam
· Dynamic "Flesh Correction" - Corrects Purple and limiting and Gate black level (Brightness) control are servo
Green Flesh Colors without Affecting Primary Colors loops used to stabilize the RGB output and reduce frequent
manual adjustment. The automatic beam limiter circuit
· Balanced Chroma Demodulators with Low Output reduces picture contrast and brightness to prellent excessive
Impedance for Direct Coupling drille output at the picture tube.
· Internal RF Filtering · Formerly d8\!. type no. TA 10806.
· Requires Few External Components
· Automatic Beam Limiter Ordering Information
· Chroma luminance Tracking Picture Control PART TEMPERATURE
NUMBER RANGE PACKAGE
CA3217E -4O"C to +85"C 28 Lead Plastic DIP
Pinout
CA3217
(PDIP)
TOP VIEW
26 PICTURE CONTROL
2S LOW PASS FILTER
24 BRIGHT CONTROL
ACe, KILLER ALTER
APCALTER
19 Q CARRIER IN
18 I CARRIER IN
17 DEMODULATOR CHROMA IN
16 OVERLOAD, FLESH DISABLE
1S CARRIER OUT
CAUTION: These devices are sensnive to electroslatic discharge. Users shoukllollow proper I.C. Handling Procedures. File Number 1332.2
Copyright @ Harris Corporation 1993
7-45
Specifications CA3217
Absolute Maximum Ratings Operating Conditions
DC Voltage (Between Terms 23 & 8) ···················. 14.0V Operating Temperature Range ················· -40"C to +85°C
Power Dissipation Storage Temperature Range ·················· -6500 to + 150°C
=
Up to TA +5500 ································ 1.27W
Above TA = +5500 ············· Derate Linearly at 13.3mWf'C
Junction Temperature (Plastic Package) ············.·· +1500 C
Lead Temperature (Soldering 10 Sec.) ················· +3000 C
CAUTION: stresses above those listed In "Abso/uts Max/mum Ratings' mey cause permanent dsmege to thB d8vica. This is a stress only rating and operation
of the device at thsse or any other conditions above those Ind"/C8ted In thB operational sections of this specification is not ImpUed.
Electrical Specifications TA = +25·C
I TEST CONDITIONS I UMITS I
mVp'p mVp.p mVp'p RELAYS
PARAMETERS TEST S2 S3 54 S5 S6 CHROMA BURST IN LUMA ENERGIZED MIN TVP MAX UNITS
DC ELECTRICAL SPECIFICATIONS (Test 1-5)
Dissipation Pin 23 6.3V 11.2V 4.0V 6.3V 11.2V 30 48 66 mA
Pin 1 Bal XPTl l.2V 11.2V 4.0V 6.3V 11.2V 10.5 VDC
Pln3Bai XPTl 1.2V 11.2V 4.0V 6.3V 11.2V 2.2 VDC
Pin 17Bal XPT9 1.2V 11.2V 4.0V 6.3V 11.2V 3.0 VDC
Pin 13 Bal XPT 1.2V 11.2V 4.0V 6.3V 11.2V 7.5 VDe
13
SWITCHING ELECTRICAL SPECIFICATIONS (Tests 6-26)
OSCillator Pull-In (Note 1) '0' 6.3V 11.2V 4.0V 6.3V 11.2V 25 25 K4, K7 -350 +350 Hz
Oscillator Level '0' 6.3V 11.2V 4.0V 6.3V 11.2V 0 0 K7 0.7 Vp.p
100% ACC (Note 2) P21 Vary 11.2V 4.0V 6.3V 11.2V 125 125 K4,K7 1.5 Vp.p
200% ACC (Note 3) P21 T8 11.2V 4.0V 6.3V 11.2V 250 250 K4, K7 100 %
20% ACC (Note 3) P21 T8 11.2V 4.0V 6.3V 11.2V 25 25 K4,K7 90 %
Tint Center (Note 4) S5 Vary 11.2V 4.0V Vary 11.2V 250 125 K4,K7 6.5 VDC
R·YMaximum P21 11.2V 11.2V 6.0V Tll 11.2V 250 125 Kl, K4, K7 6.0 Vp.p
Unkill P21 11.2V 11.2V 4.0V T11 11.2V 25 12.5 K4,K7 4.5 Vp.p
Kill P21 11.2V 11.2V 4.0V T11 11.2V 25 2.5 K4,K7 150 mVp.p
Chroma Reserver P21 11.2V 11.2V 4.0V T11 11.2V 12.5 125 K2, K4, K7 2.0 Vp.p
Maximum Luma (Note 5) P21 11.2V 11.2V 4.0V T11 11.2V 125 Kl, K3, K7 2.2 Vp.p
Luma Ratio (Note 6) P21 11.2V 6.3V 4.0V T11 11.2V 125 Kl, K3, K7 50 %
Linearity (Note 7) P21 11.2V Vary 3.0 T11 11.2V 425 K3,K7 4 Vp.p
T19 =T191T18 P21 11.2V T18 3.0 T11 11.2V 212.5 K3, K7 50 %
4.78MHz Response (Note 8) P21 11.2V 11.2V 4.0V T11 11.2V 125 K3, K6, K7 ·3 3 dB
Contrast Limit 1 (Note 9) P24 11.2V 11.2V 4.OV T11 l1.2V 250 K3, K5, K7 3.9 VDC
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, KS, K7 3.1 VDC
Bright Limit 2 (Note 10) P26 11.2V 11.2V 4.0V T11 l1.2V 250 K3, KS, K7 5.6 VDe
G·Y Ratio (Note 11) P20 Vary 11.2V 4.0V Til 11.2V 250 125 0.33 R
P22 T25 11.2V 4.0V T11 125 1.20 R
B·Y Ratio (Note 11) 11.2V 250
NOTES:
1. With K7 energized and frequency counter at D vary Cl for 3.579175MHz. Then with K4 energized, check for pull';n. Repeat for frequency
tuned to 3.579875MHz. For all other tests tune to 3.579545MHz ±1 OHz.
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
S5voltage.
5. Black to White.
=
6. T17 T171T16.
7. Adjust S3 for 4.0Vp.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 P201P21 and P22tP21.
7-46
Specifications CA3217
Typical Performance of the CA3217E
FUNCTION TYPICAL DATA
Nominal Supply 11.2V
Nominal Dissipation 500mW
Oscillator Stability
Supply Variation 1O·1"V 5Hz
Variation With Temperature (AT = +5O"C) 25Hz
AFPC Characteristics
DC Loop Gain 33HzlDegree
Pullin Range t500Hz
ACC Characteristics
100% Chroma Input Level 250mVp.p on Red Bar
3dB Point At 20% Nominal Input Level
Hue Control Range 1000
Saturation Control Range 4OdBMln.
DEMODULATOR PARAMETERS RELATIVE AMPLITUDE ANGLE
R-V 1.0 93"
B-V 1.2 2"
G-V 0.3 2580
Bandwidth (Chroma) 900kHz
Flesh Control Primary Controi 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 5MHzMin.
SandcasUe Input
1.2 - 2.3V Blanking
>3.3V Burst Gate
Maximum Unear Output
R 5V
G 3V
B 3.7V
7-47
CA3217
Functional Block Diagram
CA3217E
HUE
CONTROL
~------------;-~15r-----~
SATURATION
CONTROL
Y '---------......-118 r-------1
",--""--""-IG-YI 1-''---"1GL__~ GREEN
OUT
LUMAI
~:,.~~: -IR-YI 'i.."A~~XA ~R'--t_-.(,., "uW" I RED
AMP AMP OUT
BLUE
OUT
BEAll BRIGHT
CURRENT CONTROL
REFERENCE
IN
7-48
CA3217
Schematic Diagram CA3217E
IULLER · ACe
,.. CHIIOIIA AIIP.
.,
".
I
I
I
I
I
I
I
I (Ur-,;;;,:;;"",-<:
I
I
I
I
I
I
I D,
L~DE~ ________ . . . __ ~.
7-49
CA3217
Schematic Diagram (Contlnuacl) CA3217E
7·50
CA3217
Test Circuit
LUMA INPUT
BRIGHTNESS
1-1 ~ fl
CONTROL B R G
w. ) : 54
10k
+ I!lV
CONTRAST
CONTROL
10k ~~ 53 ~.I
K5 10k
BUFFER
27 26 25 24 23 22 21 20 19 II 17 III III
D
CA3217E 1M
2 3 4 7 8 9 10 II 12 14
lOOk XPTlI
10k QOOI
0.0011'""
... CHROMA 0.01
cr~R~::l
CONTROL
.:50 0.01
k4 lOOk
50 .
lO.OOI DOFF
+9.5V
3 ..A MAX
(OVERLOAD)
FIGURE 1. TEST CIRCUIT FOR CA3217E
Typical Performance Curves
14
TA · ..soc, LUMA INPUT .. O.Wp.p (30% SYNC)
CONTRAST ....3V, SATURATION. 8.3V --
TA · ..soc, LUMA INPUT. O.5Vp.P (30% SYNC)
BRIGHTNESS. 4.oV, SATURATION. &.3V
5.5 PIN 2h 11.8V
r-
r-
-
-
PIN 28 .. 11.8V
~
... 12 ~4.5
/
/
~ 10
V
".
i3.5 ./
!·
l;j
8
~
...... i
:3
l;j
2.5
L
./
/
~ 4
2
./ "" ~1.5
0.5
1/
/
/
1/
024 · 8 10 o 2 4 · · 10 12 14
BRIGHTNESS CONTROL M CONTRAST CONTROL M
FIGURE 2. TYPICAL P21 BLACK LEVEL VERSUS FIGURE 3. TYPICAL P21 LUMINANCE OUTPUT vs CONTRAST
BRIGHTNESS CONTROL CONTROL
·7·51
CA3217
Typical Performance Curves (Continued)
TA. +25"c, CHROMA INPUT. 250mVp.p
TA. +25"C, LUMA. 0.5Vp.p (30% SYNC)
12 BURST · 126mVp." CONTRAST · 11.2V
HUE .&.aY, SATURATION. 1.3V
BRIGHTNESS.4.0V, BEAM UMITER · 11.IV
r.,....-
1/1
) CONTRAST PIN 26 - 1/
I I I I
10' J I I I f
I I I I
BRIGHTNESS PIN 24-
,J' .... II
2
"" 200
.... ~
V
II 10 11 12
o 2 4 I 1 10 12 14
SATURATION CONTROL (V)
PIN 21 BEAM UMITER (V)
FIGURE 4. TYPICAL BEAM UMITER va CONTRAST AND FIGURE 5. TYPICAL P1 CHROMA OUTPUT VI SATURATION
BRIGHTNESS CONTROL
1200 TA. +25"c, CHROMA INPUT. 250mVp.p
/ BURST · 125mVp..- LUMA. 0.5Vp.p (30% SYNCH). I--
~ HUE ...3Y, BRIGHT. 4.0Y, PIN ~ · V I 11·r
LUMINANC~
, /
.- CjROj-
1/
I/' V I
/' / ' INmAL CONDmON
ADJUST PIX CONTROL FOR 1Vp.p
TA. +25"C, CHROMA INPUT. 250mVp·p
SATURATION. 1.3V, BRIGHTNESS. 4.0V
V LUMA (BLK TO WHT)
ADJUST SAT. CONTROL FOR 1Vp.p
BEAM UMITER _11.IV fI" RED (BLK TO PEAK)
o 2 4 8 1 10 12 14
2 4 6 8 10 12
CONTRAST CONTROL (V)
PICTURE CONTROL (V)
FIGURE 6. TYPICAL P1 CHROMA OUTPUT V8 CONTRAST FIGURE 7. TYPICAL LUMAICHROMA TRACK
CONTROL
7-52
CA3217
+ZIY 15K III1K IEAlil
CURRDIT
27011
1011
122lO f
10K
CHROMA 1000 pi'
IN o-t
· OUT
11.2 Y CUI17E
II'K
II OUT
100 K lOUT
1
150
pF 470011 47008
=
SANDCASTLE PULSE IN
1000 lI,zy 820011 1I.2Y
11
10K
lOOK PIX BRIGHT
Yee -=- =
II.IV HUJ SAT
FIGURE 8. TYPICAL APPLICATION CIRCUIT
FIGURE 9. TEST SIGNALS FOR THE CA3217E
7-53