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ICs for TV
AN5636K
SECAM/PAL signal conversion IC
s Overview
The AN5636K is an IC which converts the SECAM signal into the quasi-PAL signal. This IC can add the SECAM signal processing function while rationalizing the external parts in a joint use with the PAL/NTSC signal processing IC: AN5606K.
1 30
Unit: mm
0.50.1 0.90.25
26.70.3
s Features
* Rationalizing IHDL in common use with PAL IHDL * Lowering 6H line crawling by the quasi-PAL modulation * For both auto and manual modes of signal processing
15 8.60.3 16 4.70.25
1.00.25 3.30.25
s Applications
* TV (applicable to three systems: PAL/NTSC/SECAM)
3 to 15
10.160.25
0.35-0.0
+0.1
5
SDIP030-P-0400
1.778
1
2
PAL (B - Y) PAL (R - Y) 4.43 MHz CW VCC (chroma) 27
18 Phase shifter Line switch 16 Carrier switch SECAM switch & PAL matrix
AN5636K
s Block Diagram
26
25
24
22
21
20
19
Adder
28
B -Y clamp
R -Y clamp
Clamp pulse gen. Blanking & reinsert PAL mod.
System ident. priority
17
PAL color killer
23 14 SECAM / SECAM chroma switch
29 Burst H. V. H. blank blank
30 Flip flop
Chroma demod. Sandcastle pulse det.
Artificial black level gen.
4.43 MHz (chroma)
GND (chroma) 1
Limiter amp.
SECAM / SECAM video switch
13 Video amp. 10
Compo. video 2 Ident. SECAM / SECAM Ident. pulse gen.
VCC (video) GND (video)
3
Ident. demod.
15
11
12
4
5
6
8 Sand castle pulse
7 ST video
9 DL video
Video out
SECAM chroma
ICs for TV
ICs for TV
s Pin Descriptions
Pin No. 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 Description GND (chroma-system) SECAM chroma input Limiter feedback Limiter feedback System discrimination holding capacitor Identification pulse fall setting Not SECAM video signal input Sand castle pulse input SECAM video signal input GND (video system) Video signal output Not SECAM chroma signal input VCC (video system) PAL chroma signal output Identification pulse rise setting Direct signal input 24 25 26 27 28 29 30 Pin No. 17 18 19 20 21 22 23 Description
AN5636K
PAL color killer voltage input Delay signal input VCC (chroma system) R-Y signal output Reference bias power supply B-Y signal output System identification voltage output combined with system forcing switch 4.43 MHz CW input Line switch output R-Y clamp capacitance De-emphasis circuit B-Y clamp capacitance Discriminator Discriminator
s Absolute Maximum Ratings
Parameter Supply voltage Supply current Power dissipation *2 Operating ambient temperature *1 Storage temperature *1 Symbol VCC ICC PD Topr Tstg Rating 6.0 100 600 -20 to +70 -55 to +150 Unit V mA mW C C
Note) *1 : Except for the operating ambient temperature and storage temperature, all ratings are for Ta = 25C. *2 : Ta = 70C, Independent IC without a heat sink
3
AN5636K
s Recommended Operating Range
Parameter Supply voltage Pin voltage Pin voltage Pin voltage Pin voltage Pin voltage Pin voltage Pin voltage Pin voltage Pin voltage Pin voltage Pin voltage Pin voltage Pin voltage Pin voltage Pin voltage Pin voltage Pin voltage Pin voltage Pin voltage Pin voltage Pin voltage Pin voltage Pin voltage Pin voltage Pin voltage Pin voltage Pin voltage Pin current Pin current Pin current Pin current Pin current Pin current Pin current Symbol VCC V2-1 V3-1 V4-1 V5-1 V6-1 V7-1 V8-1 V9-1 V11-1 V12-1 V14-1 V15-1 V16-1 V17-1 V18-1 V20-1 V22-1 V23-1 V24-1 V25-1 V26-1 V27-1 V28-1 V29-1 V30-1 V7-9 V16-18 I5 I6 I11 I14 I15 I20 I22 Range 4.5 to 5.5 0 to V19-1 0 to V19-1 0 to V19-1 0 to V19-1 0 to V19-1 0 to V19-1 0 to V19-1 0 to V19-1 0 to 4.5 0 to V19-1 0 to 4.0 0 to V19-1 0 to V19-1 0 to V19-1 0 to V19-1 0 to V19-1 0 to V19-1 0 to V19-1 0 to V19-1 0 to V19-1 0 to V19-1 0 to 4.0 0 to V19-1 0 to V19-1 0 to V19-1 0 to 3 0 to 4.5 -1 to +1 0 to +2 -10 to 0 -4 to 0 0 to +2 -2 to 0 -2 to 0
ICs for TV
Unit V V V V V V V V V V V V V V V V V V V V V V V V V V V V mA mA mA mA mA mA mA
4
ICs for TV
s Electrical Characteristics at Ta = 25C
Parameter 1. DC Circuit current 2. AC Chroma block SECAM input signal limiting range Limiter amplifier gain SECAM demodulation output signal (B-Y) SECAM demodulation output signal (R-Y) SECAM demodulation output ratio (R-Y/ B-Y) SECAM modulation gain V30 (lim) Pin 30 output, when pin 2 input is 4.328 MHz CW of 20 mV[p-p] to 400 mV[p-p] Pin 30 output, when pin 2 input is 4.328 MHz CW of 2 mV[p-p] Peak to peak voltage of DB at pin 27 for SECAM color bar chroma of 200 mV[p-p] input to pin 2 Peak to peak voltage of DR at pin 27 for SECAM color bar chroma of 200 mV[p-p] input to pin 2 -1 0 ICC1 Pin 13: 5.0 V, pin 13: 5.0 V 40 58 Symbol Conditions Min Typ
AN5636K
Max
Unit
76
mA
+1
dB
GV30 (lim) E27 (B-Y)
18 159
28 227
38
dB
295 mV[p-p]
E27 (R-Y)
225
321
417 mV[p-p]
E27 (R-Y/
B-Y)
Peak to peak voltage of DR vs. DB 0.99 at pin 27 for SECAM color bar chroma of 200 mV[p-p] input to pin 2 Peak to peak voltage of DR at pin 27 vs. DR red at pin 14 for SECAM color bar chroma of 200 mV[p-p] input to pin 2 At pin 14, DR red vs. DR burst for SECAM color bar chroma of 200 mV[p-p] input to pin 2 At pin 14, DR red vs. DR blue for SECAM color bar chroma of 200 mV[p-p] input to pin 2 Pin 14 chroma output for PAL chroma 330 mV[p-p] input to pin 12 0.5
1.41
1.84
GS27-14
1.0
1.5
Times
SECAM modulation output ratio (R-Y/ burst) SECAM modulation output ratio (R-Y/ B-Y) PAL chroma amp gain Video block Frequency characteristics (SECAM)
V14 (R-Y/
burst)
2.34
3.35
4.36
V14 (R-Y/
B-Y)
0.99
1.41
1.84
GP12-14
0.7
1.0
1.3
Times
F11SECAM
Pin 11 cutoff frequency for CW 0.3 V[p-p] input to pin 9 Pin 11 cutoff frequency for CW 0.3 V[p-p] input to pin 7 10 kHz CW output gain at pin 11 for 10 kHz CW 0.3 V[p-p] input to pin 9 10 kHz CW output gain at pin 11 for 10 kHz CW 0.3 V[p-p] input to pin 7
10 10 4 4
7 7
10 10
MHz MHz dB dB
Frequency characteristics (PAL) F11PAL Gain (SECAM) Gain (PAL) G11SECAM G11PAL
5
AN5636K
s Electrical Characteristics at Ta = 25C (continued)
Parameter 2. AC (continued) SECAM switch PAL matrix block SECAM switching gain (ST, B-Y) SECAM switching gain (ST, R-Y) SECAM switching gain (DL, B-Y) SECAM switching gain (DL, R-Y) PAL matrix gain (ST, +) PAL matrix gain (DL, +) PAL matrix gain (ST, -) PAL matrix gain (DL, -) Discrimination block SECAM killer tolerance EK Killer on level, when SECAM color bar chroma 200 mV[p-p] at pin 2 is refered as 0 dB -48 -42 GS16-22 GS16-20 GS18-22 GS18-20 GP16-22 GP18-22 GP16-20 GP18-20 PAL chroma output at pin 22 for PAL chroma 660 mV[p-p] at pin 16 PAL chroma output at pin 20 for PAL chroma 660 mV[p-p] at pin 16 PAL chroma output at pin 22 for PAL chroma 660 mV[p-p] at pin 18 PAL chroma output at pin 20 for PAL chroma 660 mV[p-p] at pin 18 PAL chroma output at pin 22 for PAL chroma 660 mV[p-p] at pin 16 PAL chroma output at pin 22 for PAL chroma 660 mV[p-p] at pin 18 PAL chroma output at pin 20 for PAL chroma 660 mV[p-p] at pin 16 PAL chroma output at pin 20 for PAL chroma 660 mV[p-p] at pin 18 0.7 0.7 0.7 0.7 0.35 0.35 0.35 0.35 1 1 1 1 0.5 0.5 0.5 0.5 Symbol Conditions Min Typ
ICs for TV
Max
Unit
1.3 1.3 1.3 1.3 0.65 0.65 0.65 0.65
Times Times Times Times Times Times Times Times
-36
dB
Killer detection voltage SECAM color Killer detection voltage SECAM off Ident. detection voltage PAL System switch block System discrimination output voltage (SECAM) System discrimination output voltage (SECAM)
V23SECAM Pin 23 voltage for SECAM color bar chroma of -34 dB at pin 2 V23OFF V23PAL Pin 23 voltage for SECAM color bar chroma of -50 dB at pin 2 Pin 23 voltage for PAL color bar chroma burst of 150 mV[p-p] at pin 2
0 0.7 0.7
0.25 3.0 3.0
0.5 5.0 5.0
V V V
V23SOUT
System discrimination output at pin 23 for PAL color bar chroma burst of 150 mV[p-p] at pin 2 System discrimination output at pin 23 for SECAM color bar chroma of 0 dB at pin 2
0.7
3.0
5.0
V
V23SOUT
0
0.25
0.5
V
6
ICs for TV
s Electrical Characteristics at Ta = 25C (continued)
* Design reference data
Note) The characteristics listed below are theoretical values based on the IC design and are not guaranteed.
AN5636K
Parameter 1. AC Chroma block
Symbol
Conditions
Min
Typ
Max
Unit
PAL chroma input signal voltage V12(PAL) SECAM demodulation linearity LE27(R-Y) SECAM modulation linearity SECAM modulation output phase difference SECAM modulation output signal (B-Y) SECAM modulation output signal (R-Y) SECAM modulation output signal (burst) Video block Video input signal voltage (SECAM) Video input signal voltage (PAL) V9SECAM V9PAL LV14(R-Y) 14
Pin 12: PAL chroma input signal Pin 2: 4.406 MHz 0.28 MHz Output linearity at pin 27 Pin 2: 4.406 MHz 0.28 MHz Output linearity at pin 14 At pin 14, DB vs. DR output phase difference for SECAM color bar chroma of 200 mV[p-p] input to pin 2
80 80 80
330 90 90 90
660 mV[p-p] 100 100 100 % %
V14(B-Y) V14(R-Y) V14(Burst)
DB blue at pin 14 for SECAM color bar 136 chroma of 200 mV[p-p] input to pin 2 DR red at pin 14 for SECAM color bar 192 chroma of 200 mV[p-p] input to pin 2 DR burst at pin 14 for SECAM color bar chroma of 200 mV[p-p] input to pin 2 57
227 321 96
318 mV[p-p] 450 mV[p-p] 135 mV[p-p]
Pin 9: SECAM video input Pin 7: PAL video input
0.8 0.8 0.8
0.3 0.3
0.6 0.6
V[p-p] V[p-p]
SECAM switch PAL matrix block Direct input signal voltage Delay input signal voltage SECAM amplification degree ratio (ST/DL, B-Y) SECAM amplification degree ratio (ST/DL, R-Y) PAL amplification degree ratio (ST, B-Y/R-Y) PAL amplification degree ratio (DL, B-Y/R-Y) SECAM switch output phase difference (B-Y) SECAM switch output phase difference (R-Y) Carrier block 4.43 MHz input signal voltage V24IN Pin 24 4.43 MHz CW input 0.3 0.5 V[p-p] V16 V18 DS B-Y DS R-Y DPST Pin 16: chroma input Pin 18: chroma input PAL chroma input to pin 16 or pin 18 PAL chroma output ratio at pin 22 PAL chroma input to pin 16 or pin 18 PAL chroma output ratio at pin 22 Pin 16: PAL chroma input Ratio of PAL chroma output at pin 22 to at pin 20 Pin 18: PAL chroma input Ratio of PAL chroma output at pin 22 to at pin 20 Pin 22 output phase difference, when PAL chroma is inputted to pin 16, pin 18 Pin 20 output phase difference, when PAL chroma is inputted to pin 16, pin 18 660 660 1.0 1.0 1.0 1 320 mV[p-p] 1 320 mV[p-p] 1.2 1.2 1.2
DPDL
0.8
1.0
1.2
B-Y R-Y
-10 170
0 180
+10 190

7
AN5636K
s Electrical Characteristics at Ta = 25C (continued)
* Design reference data
Note) The characteristics listed below are theoretical values based on the IC design and are not guaranteed.
ICs for TV
Parameter 1. AC (continued) System switch block PAL color killer input threshold voltage (color) PAL color killer input threshold voltage (killer) System-forcing switch input threshold voltage (SECAM) System-forcing switch input threshold voltage (SECAM) Pulse input block BGP detection voltage H pulse detection voltage BLK pulse detection voltage
Symbol
Conditions
Min
Typ
Max
Unit
V17Color
Input voltage at pin 17
0.5
3.0
5.0
V
V17Color
Input voltage at pin 17
0
0.25
0.5
V
V23SIN
Input voltage at pin 23
0.5
3.0
5.0
V
V23SIN
Input voltage at pin 23
0
0.25
0.5
V
VTHBGP VTHHP VTHBLKP VTH6 VTH15
Pin 8: sand castle pulse Pin 8: sand castle pulse input Pin 8: sand castle pulse input
3.25 1.8 0.7
3.5 2.2 0.95
3.75 2.6 1.2
V V V
Burst phase width adjusting block Front edge threshold level Rear edge threshold level Flip-flop block De-emphasis switch output (B-Y) De-emphasis switch output (R-Y) V25B-Y V25R-Y Output voltage at pin 25 Output voltage at pin 25 0 0.5 0.25 3.0 0.5 5.0 V V Threshold level at pin 6 Threshold level at pin 15 1.0 1.0 1.25 1.25 1.5 1.5 V V
8
ICs for TV
4.43 MHz CW VCC (chroma) PAL (B - Y) PAL (R - Y)
25 21 19
22
20
s Application Circuit Example
27
18
Adder Phase shifter R -Y clamp Clamp pulse gen. Blanking & reinsert PAL mod. System ident. priority Line switch Carrier switch SECAM switch & PAL matrix
26
16
24
PAL ACC chroma
28
B -Y clamp
17 PAL color killer PAL 23 14 SECAM System switch Auto 4.43 MHz chroma
29
Artificial black level gen. Burst Sandcastle pulse det. Flip flop H. V. H. blank blank SECAM / SECAM chroma switch
30
Chroma demod.
GND (chroma)
1
2
Ident. demod. Ident. SECAM / SECAM Ident. pulse gen.
Limiter amp.
SECAM / SECAM video switch
13
Video amp.
VCC (video) 10 GND (video)
3
15
11
12
4
5
6
8
7
9
Compo. video
Video out
SECAM chroma
Sand castle pulse
ST video
DL video
AN5636K
9

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