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TB1239BF
Preliminary
Bi-CMOS Integrated Circuit Silicon Monolithic
TB1239BF
Luminance, Chroma and Synchronizing Signals Processor IC for PAL/NTSC/SECAM COLOR TV
TB1239BF integrates luminance, chroma and synchronizing signals processing circuits for PAL/NTSC/SECAM color TV system. TB1239BF incorporates high performance picture quality compensation circuits in luminance section, an automatic PAL/NTSC/SECAM discrimination and decode circuits in chroma section, and an automatic 50/60 Hz discrimination circuit in synchronizing section. Besides a crystal oscillator generates 4.43 MHz, 3.58 MHz and M/N-PAL clock signals internally for color demodulation. A Weight: 0.83 g (typ.) horizontal PLL circuit is also built in this IC. PAL/SECAM demodulation circuits which are adjustment-free circuits incorporates a 1 H DL circuit inside for operating the base band signal processing system. Also, TB1239BF makes it possible to set and to control various functions through the built-in I2C BUS line.
Features Luminance Section
* * * * * * * Built-in chroma trap filter Black stretch circuit DC restoration circuit Y delay line Sharpness control Sub-Contrast control (-/+2 dB) Black set-up for PAL plus * *
Synchronizing Section
* * Built-in horizontal VCO resonator Adjustment-free horizontal and vertical oscillation by count-down circuit Automatic vertical frequency discrimination circuit Noise detection circuit
Others
* * * * * * * Y/C out level control 4-channels inputs switching 2-input circuit for RGB 2-input circuit for Y/Cb/Cr Y/Cb/Cr outputs Cb/Cr offset adjustment Built-in pre filters for A/D converter
Chroma Section
* * * * * * Built-in 1 H delay circuit (PAL/SECAM base band demodulation system) One crystal color demodulation circuit (4.43 MHz, 3.58 MHz, M/N-PAL) Automatic system discrimination system and forced system mode 1 H delay line also serves as comb filter in NTSC demodulation Built-in band-pass and take-off filter, SECAM bell filter Sub-Color control (-/+2 dB)
980910EBA1
* TOSHIBA is continually working to improve the quality and the reliability of its products. Nevertheless, semiconductor devices in general can malfunction or fail due to their inherent electrical sensitivity and vulnerability to physical stress. It is the responsibility of the buyer, when utilizing TOSHIBA products, to observe standards of safety, and to avoid situations in which a malfunction or failure of a TOSHIBA product could cause loss of human life, bodily injury or damage to property. In developing your designs, please ensure that TOSHIBA products are used within specified operating ranges as set forth in the most recent products specifications. Also, please keep in mind the precautions and conditions set forth in the TOSHIBA Semiconductor Reliability Handbook. * The products described in this document are subject to the foreign exchange and foreign trade laws. * The information contained herein is presented only as a guide for the applications of our products. No responsibility is assumed by TOSHIBA CORPORATION for any infringements of intellectual property or other rights of the third parties which may result from its use. No license is granted by implication or otherwise under any intellectual property or other rights of TOSHIBA CORPORATION or others. * The information contained herein is subject to change without notice.
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TB1239BF
Block Diagram
YS2/YM
Y/C-GND
Y/C-VCC
CR2-IN
CB2-IN
G2-IN
R2-IN
G1-IN
R1-IN
Y2-IN
38
37
36
35
34
33
B2-IN
X'tal
FIL
32
31
30
29
28
27
26
25
Clamp VCXO C3-IN 39 APC APC-FIL 40 Offset1 CW Phase FSC Tint Matrix
Clamp Offset2
Clamp 24 YS1
Matrix
B1-IN
23 CR-OUT Half Tone SubColor Cb/Cr SW 1 H DL Y LPF DL
Sharpness
Amp
LPF
SW
SW
CVBS3/Y3-IN 41 Baseband SW ADDRESS 42
22 CB-OUT Set-up Clamp
CLP
21 Y-OUT
C2-IN 43
SW (C-mute)
DEEmphasis
20 CLP-FIL Subcontrast 19 Y1-IN Black ADJ Secam ID Y DL
CVBS2/Y2-IN 44 P/N DEMO COMB SYS 45 BPF/ TOF FSC-OUT 46 ACC AFC-FIL 47 C Color System CVBS/YC Select Y BELL EQ S Doubel Trap Chroma Trap SW P/N ID Secam DEMO
18 CB1-IN
17 CR1-IN V C/D V SEPA V INTEG + MASK Sync SEPA 16 SYNC-GND
Chroma ID
C1-IN 48 H C/D H VCO
15 YS3 I C Bus Control
2
AFC
1 CVBS1/Y1-IN
2 SYNC-IN
3 CVBS-OUT
4 VS
5 COMB Y-IN
6 DIGITAL-VDD
7 COMB C-IN /FORCED-S
8 DIGITAL-GND
9 HS
10 SCP
11 YVI-OUT
12 SYNC-VCC
13 SCL
14 SDA
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TB1239BF
Terminal Descriptions
Pin No. Pin Name
(YC - VCC/SYNC - VCC/D - VDD = 5 V and Ta = 25C, unless otherwise specified)
Function Interface Circuit Input/Output Signals
32 2.5 V
1
CVBS1/Y1-IN
Input CVBS1/Y1 signal through a clamping capacitor.
CVBS: 1 Vp-p Y: 1 Vp-p (with sync) 50 A 50 A DC: 1.8 V
1
250
28
12
1 k
2
SYNC-IN
Input signal to synchronize.
2
1 Vp-p (with sync) DC: 1.7 V
1.5 V 16 100 32
8 k 700 A
3
CVBS-OUT
CVBS or Y + C signal output pin.
3
50
2 Vp-p (with sync) DC: 0.6 V
28
12 Output pin of vertical synchronizing signal. 4 VS Minimun pull-up resister is 6.8 k. 4 50 120 A
Hi Low 4.7 V < Hi < 5.2 V = = 0 V < Low < 0.8 V = =
16
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Pin No. Pin Name Function Interface Circuit Input/Output Signals
32 2.5 V
5
COMB Y-IN
Input luminance signal from Comb filter through a clamping capacitor.
5
1 Vp-p (with sync) 250 DC: 1.8 V
28
6
D-VDD
Power supply pin for DDS/BUS/V-CD/H-CD sections.
DC 5 V
32 Input chroma signal from Comb filter through a clamping capacitor. When this pin is connected to VCC, color killer is OFF and SECAM ID is ON forcibly. (forced SECAM mode) Refer to FUNCTION DESCRIPTION.
7 /FORCED-S
40 k
COMB C-IN
7
250
0.3 Vp-p (burst) C Forced-S DC: 2.4 V 4.0 V < Forced-S < 5.0 V = = (Th: 3.5 V)
50 k 20 k 2.4 V 40 pF 3.5 V 28
8
D-GND
GND pin for DDS/BUS/V-CD/H-CD sections.
125
12
Hi Low 3.8 V < Hi < 4.6 V = = 0 < Low < 1.0 V = =
Output pin of horizontal synchronizing signal. 9 HS Minimun pull-down resister is 2.7 k. 9 50 20 k
16
Sand Castle Pulse output pin. 10 SCP The clamping pulse and the horizontal blanking pulse are outputted. 10
100
12
CP H-BLK Low 3.6 V < CP < 4.4 V = = 1.6 V < H-BLK < 2.4 V = = 0.0 V < Low < 0.8 V = = with pull-down resister (7.5 k)
50
16
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TB1239BF
Pin No. Pin Name Function Interface Circuit Input/Output Signals
11
Yvi-OUT
8 k
Output pin to synchronize inputs. Y signal from video-SW is outputted.
100
12
1 Vp-p (with sync) 11 50 DC: 2.1 V
16
12
SYNC-VCC
Power supply pin for liner SYNC/HVCO sections.
DC 5 V
6 100 k 15 k 13 SCL SCL pin for I CBUS. 13 3 k
2
SCL
SCL 8
2.7 V 6 100 k 15 k SDA SDA 8 32 1.0 V < RGB1 < 5.0 V = = (Th: 0.7 V) 6 k 30 k 28 2.7 V
14
SDA
SDA pin for I CBUS. 14 50 3 k
2
ACK
YS3 15 (RGB1-in)
Pin to switch main signals and RGB1 signals. If the voltage of this pin is HI and the RGB1-ENB data is "enable" via I2C BUS, RGB1-IN is selected. And its status is responded to the Read Bus data.
15
16
SYNC-GND
GND pin for liner SYNC/HVCO sections.
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TB1239BF
Pin No. Pin Name Function Interface Circuit Input/Output Signals
32 17 Cr1-IN
17, 18 240 18 Cb1-IN
240 240 2.5 V
28 Input Y1/Cb1/Cr1 signal through a clamping capacitor. (selected by I C BUS.) When Y/Cb/Cr1-IN is active, Y1 signal is synchronized. 1 k
2
Y: 1 Vp-p (with sync) DC: 1.7 V 32 Cb/Cr: 0.7 Vp-p (100 DC: 2.5 V color bar)
1 k 19 Y1-IN 19
5 k
28
32
20
CLP-FIL
Connect a filter for clamping Y signal.
20
10 k 50
28
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Pin No. Pin Name Function Interface Circuit Input/Output Signals
100
21
Y-OUT Y/Cb/Cr output pins.
32
DC; Y: 1.3 V, Cb/Cr: 1.8 V
21, 22, 23 700 A 50 AC; Y: 0.7 Vp-p (0 dB, non-sync) 28 Cb/Cr: 0.7 Vp-p (0 dB)
22
Cb-OUT
The output's amplitudes is variable from 0.5 to 1.6 Vp-p by I2C BUS.
23
Cr-OUT
32
YS1 24 (YCbCr2-in)
Pin to switch main signals and YCbCr2 signals. 24
10 k
1.0 V < YCbCr2 < 5.0 V = = (Th: 0.7 V)
6.1 k 30 k
28
32 25 B1-IN
26
G1-IN
Input RGB1 signal through a clamping capacitor. (selected by YS3 and I2C BUS.)
25, 26, 27 250
250 250 2.5 V
0.7 Vp-p DC: 2.5 V
27
R1-IN
28
28
Y/C-GND
GND pin for Y/C/Text/Video-SW/ 1 H DL sections.
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Pin No. Pin Name Function Interface Circuit Input/Output Signals
32 29 Cr2-IN
29, 30 270 30 Cb2-IN
270
240 DAC OFFSET Y: 1 Vp-p (with sync)
2.5 V
Input Y2/Cb2/Cr2 signal through a clamping capacitor. (selected by YS1.)
28 DC: 1.7 V
32
Cb/Cr: 0.7 Vp-p (100 color bar) DC: 2.5 V
31
Y2-IN 31 240
240 240 1.7 V
28
32
Y/C-VCC
Power supply pin for Y/C/Text/Video-SW/ 1HDL sections.
DC 5 V
33
B2-IN
32
34
G2-IN
Input RGB2 signal through a clamping capacitor. (selected by YS2.)
33, 34, 35 250
250 250 2.5 V
0.7 Vp-p DC: 2.5 V
35
R2-IN
28
32 Pin to switch main signals and RGB2 inputs. Half-tone ON/OFF SW is also included. Half tone gain is selected by I2C BUS.
YS2/YM 36 (RGB2-in)
4 k
1.0 V < YM < 1.5 V = = 2.5 V < RGB2 < 5.0 V = = (Th1: 0.7 V, Th2: 2.0 V)
36
6 k 30 k
28
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Pin No. 37 FIL Pin Name Function Connect this terminal to Y/C VCC. Interface Circuit Input/Output Signals
32 Pin to connect a 16.2 MHz crystal. 38 X'TAL Recommended crystal: NR-18 NT162020A, made by NIHON DENPA KOGYO CO, LTD. 500 38 500 1 k 1 k 16.2 MHz wave
28
32
39
C3-IN
Input C3 signal through a clamping capacitor.
0.3 Vp-p (burst) 50 A 40 k 50 A 39 250 1.6 V DC: 1.6 V
28
32
40
APC-FIL
Connect APC filer.
40
200 110 k
3.2 V 28 32 2.5 V
41
CVBS3/Y3-IN
Input CVBS3/Y3 signal through a clamping capacitor.
CVBS: 1 Vp-p Y: 1 Vp-p (with sync) 50 A 50 A DC: 1.8 V
41
250
28
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TB1239BF
Pin No. Pin Name Function Interface Circuit Input/Output Signals
6 k 100 k
100 k
42
ADDRESS
Slave address setting pin. Select slave address. When this pin is open, 8A/8BH is selected. 42 W 88H R 89H 8AH 8BH 8EH 8FH
6 88/89H < 1.3 V = 3.9 V < 8E/8FH = (Th1: 1.5 V, Th2: 3.2 V)
100 k
3 k
8
32
43
C2-IN
Input C2 signal through a clamping capacitor.
0.3 Vp-p (burst) 50 A 40 k 50 A 43 250 1.6 V DC: 1.6 V
28
32 2.5 V CVBS: 1 Vp-p Y: 1 Vp-p (with sync) 50 A 50 A DC: 1.8 V
44
CVBS2/Y2-IN
Input CVBS2/Y2 signal through a clamping capacitor.
44
250
28
The status of color system is responded to pin 45 and pin 46. It is the same as Read BUS status. 50 k
32
Color System M-PAL 45 COMB SYS
Pin 45
Pin 46
Low Low
45
5V
High Low 0V
4.43PAL, SECAM, High Low B/W 3.58/4.43 Low High NTSC N-PAL High High
28
Refer to FUNCTION DESCRIPTION.
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TB1239BF
Pin No. Pin Name Function Interface Circuit Input/Output Signals AC: 0.84 Vp-p 32 DC: as blow figure.
Sub-carrier output pin. 46 Fsc-OUT 220 A Refer to FUNCTION DESCRIPTION. 46 100
(3.1 V)
High Low (2.1 V)
28
12
47
AFC-FIL
Connect AFC filter.
47
300
300 16
32
48
C1-IN
Input C1 signal through a clamping capacitor.
0.3 Vp-p (burst) 50 A 40 k 50 A 48 250 1.6 V DC: 1.6 V
28
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Write Mode Slave Address: 88H/8AH/8EH
Sub Address 80 81 82 83 84 85 86 87 88 89 8A 8B 8C 8D 8E 8F S-INHBT 0 0 S ID 0 0 0 0 MVM LPF N-COMB Cb/Cr-MUTE HALF TONE Cb OFFSET1 Cb OFFSET2 AFC GAIN S B-Y ADJ S GP 0 0 TEST MODE S V-ID HS-PH 0 BELL f0 0 0 V C/D MODE S R-Y ADJ BELL/HPF SETUP-SW 0 RGB1 ENB 0 BS POINT DC REST S-D TRAP C-TRAP SW Y-DL RGB SELECT FILTER SW MSB D7 P/N ID D6 P/N GW SUB-CONTRAST SHARPNESS GAIN SHARPNESS EQ Y-OUT LEVEL C-OUT LEVEL BPF Q BPF f0 COLOR SYSTEM VIDEO SELECT Cr OFFSET1 Cr OFFSET2 V-FREQ D5 D4 D3 TINT SUB-COLOR SHARPNESS f0 D2 D1 LSB D0 Preset 0010 1000 1000 0010 0010 0000 0010 0000 1000 1000 0000 1000 0000 1000 0000 0000 0000 1000 0000 0000 0000 0000 1000 0000 1000 1000 0000 1000 0000 0000 0000 0000
Read Mode Slave Address: 89H/8BH/8FH
Sub Address 00 01 MSB D7 POR V-FREQ D6 D5 D4 X'TAL V-SIG V15 (note1) D3 D2 N-DET (note1) D1 LSB D0 H-LOCK 0
COLOR SYSTEM V-STD C ID
Note1: Don't care
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Bus Control Function Write Mode Slave Address: 88H/8AH/8EH
Item/Number of Bits TINT/ Function TINT adjustment for NTSC Variable Range 00H: -33 deg to 3F H: +33 deg (1LSB = 1.1 deg) P/N GW/ P/N ID/ SUB-COLOR/ SUB-CONTRAST/ SHARPNESS f0/ PAL/NTSC gate width PAL/NTSC sensitivity SW Sub-color control Sub-contrast control Sharpness center frequency changing 0: 2.0 s, 1: 3.2 s 0: Normal, 1: Low 0 H: -2 dB to F H: 2 dB 0 H: -2 dB to F H: 2 dB 00: 2.5 MHz, 01: 3.2 MHz 10: 4.0 MHz, 11: OFF SHARPNESS EQ/ Sharpness equalizer characteristic (evaluation with 2T-pulse) SHARPNESS GAIN/ Y-OUT LEVEL/ BS POINT/ Sharpness gain control Y output level control (pin 21) Black Stretch start point changing 00: 1: 1.2, 01: 1: 1 10: 1.2: 1, 11: 1.4: 1 0 H: -6 dB to F H: 6 dB 00 H: 0.5 to 3 F H: 1.6 Vp-p 00: OFF (by-pass), 01: 20 IRE 10: 30 IRE, 11: 40 IRE C-OUT LEVEL/ DC REST/ Cb/Cr output level control (pin 22/23) DC restoration ratio adjustment 00 H: 0.5 to 3 F H: 1.6 Vp-p 00: 100 , 01: 95 10: 90 , 11: 85 BPF f0/ BPF/TOF f0 adjustment 00: -400 kHz, 01: +0 kHz, 10: +400 kHz, 11: OFF (by-pass) BPF Q/ BPF/TOF Q adjustment 00: 1.0, 01: 1.5 10: 2.0, 11: 2.5 FILTER SW/ C-TRAP SW/ S-D TRAP/ LPF/ COLOR SYSTEM/ BPF/TOF switch Chroma trap switch SECAM double trap switch Y/Cb/Cr LPF switch Color system switching Europe automatic mode; 4.43PAL, 4.43NTSC, 3.58NTSC, SECAM South America automatic mode; 3.58NTSC, M-PAL, N-PAL Refer to FUNCTION DESCRIPTION. 0: BPF, 1: TOF 0: ON, 1: OFF 0: OFF, 1: ON 0: ON, 1: OFF (by-pass) 000: Europe automatic 001: South America automatic 010: 3.58 NTSC 011: 4.43 NTSC 100: 4.43 PAL 101: SECAM 110: M-PAL, 111: N-PAL Y-DL/ Y-DL time adjustment (1LSB = 40 ns) Refer to FUNCTION DESCRIPTION. N-COMB/ VIDEO SELECT/ 1 H addition switch, when NTCS. Selection of input video signals 0000: 120 to 1010: 520 ns 1011 to 1111: don't use 0: OFF, 1: ADD Refer to FUNCTION DESCRIPTION. RGB SELECT/ Selection of input sources. Refer to FUNCTION DESCRIPTION. HALF TONE/ Half tone gain switch 00: Main, 01: YCbCr1 10: RGB1, 11: don't use 0: -10 dB, 1: -6 dB -10 dB Main OFF 0000 320 ns BPF ON OFF ON Europe automatic 1.0 -400 kHz 1.05 Vp-p 100 0 dB 1.05 Vp-p OFF 1: 1.2 2.0 s Normal 0 dB 0 dB 2.5 MHz Preset 0 deg
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Item/Number of Bits Cb/Cr-MUTE/ Cb/Cr OFFSET1/ Cb/Cr OFFSET2/ V-FREQ/ / / Function Cb/Cr output mute switch Cb/Cr offset adjustment (main route) Cb/Cr offset adjustment (YCbCr2 input) V count down frequency switch. Variable Range 0: OFF, 1: ON 0 H: -12 to F H: +10.5 mV 0 H: -12 to F H: +10.5 mV 000: Automatic mode 1, Preset OFF 0 mV 0 mV Automatic mode 1
Automatic mode 1; 001: 50 Hz, 010: 60 Hz, 50/60 Hz automatic distinction. At 011: Automatic mode 2, no-signal, the last statement is kept. Right after power-on, 50 Hz 100: Forced 312.5 H (AFC free-run), mode is run. 101: Forced 262.5 H (AFC free-run), Automatic mode 2; 50/60 Hz automatic distinction. 110: Forced 313 H (AFC free-run), And 50 Hz mode is run at 111: Forced 263 H (AFC free-run) no-signal. Refer to FUNCTION DESCRIPTION. V C/D MODE/ V count down judge switch. Refer to FUNCTION DESCRIPTION. AFC GAIN/ AFC sensitivity switch 00: Normal, 01: Teletext, 10: Fast, 11: Normal 00: +6 dB, 01: 0 dB, 10: -6 dB, 11: -17 dB MVM/ S R-Y ADJ/ S B-Y ADJ/ BELL/HPF/ Macrovision Mask + AFC Mask SECAM R-Y black adjustment SECAM B-Y black adjustment SECAM bell/HPF switching. Or the high frequency side on SECAM bell filter is boosted. Refer to FUNCTION DESCRIPTION. BELL f0/ S V-ID SW/ S GP/ BELL f0 adjustment SECAM V-ID switch SECAM gate position adjustment (its width is same) SECAM sensitivity switch SECAM inhibition switch Enable YS3 to switch to RGB1-IN. Refer to FUNCTION DESCRIPTION. SETUP-SW/ HS-PH/ Y black level set-up HS Output phase switch 0: Normal, 1: Set-up 0: H-Sync (4.7 s), 1: GP (3.2 s) TEST MODE/ Factory test mode. Set all zero. 00H Normal H-Sync 0: Normal, 1: +15 kHz 0: OFF, 1: ON 00: Normal, 01: 0.4 s delay, 10: Normal, 11: 0.4 s forward 0: Normal, 1: Low 0: Normal, 1: Inhibited 0: Disable, 1: Enable Normal Normal Disable Normal OFF Normal 0: Narrow, 1: Always masked 0 H: -10 to F H: 8.8 mV 0 H: -10 to F H: 8.8 mV 00: Bell, 01: Boost 1, 10: Boost 2, 11: HPF +6 dB (data: 00) Narrow 0 mV 0 mV Bell Normal
S ID/ S-INHBT/ RGB1 ENB/
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Read Mode Slave Address: 89H/8BH/8FH
Item/Number of Bits H-LOCK/ N-DET/ Function H.Lock detection Noise judgment Variable Range 0: Un-lock, 1: Lock 00: SN > 30 dB, 01: , 10: 30 dB > SN > 20 dB, 11: 20 dB > SN X'TAL/ Crystal mode judgment 00: 4.433619 MHz (PAL) 01: 3.579545 MHz (NTSC) 10: 3.575611 MHz (M-PAL) 11: 3.582056 MHz (N-PAL) COLOR SYSTEM/ Color system judgment 00: B/W, 01: PAL 10: NTSC, 11: SECAM POR/ V15/ Power On Reset Status of pin 15 voltage Refer to FUNCTION DESCRIPTION. V-SIG/ C ID/ Internal V.pulse detection for V.lock Input signal condition (detection of burst signal on C-IN pins) Refer to FUNCTION DESCRIPTION. V-STD/ Decision on the standard of the vertical frequency. When no-signal, 1: STD is responded. V-FREQ/ Vertical frequency judgment. Right after power-on, 0: 50 Hz is responded. At no-signal, the last statement is kept. 0: 50 Hz, 1: 60 Hz 0: Non-STD, 1: STD 0: Existing, 1: Not existing 0: Not detected (CVBS), 1: Detected (Y/C) 0: Normal, 1: Resistor preset 0: Low, 1: High
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Function Description
Video Select, Auto-SW
(1) "AUTO-SW" = (1) Manual Select In video SW section, input signal is selected by the BUS as Figure 1 and Table 1. Mainly, CVBS-OUT (pin 3) is used for the comb filter input, and Yvi-OUT (pin 11) is used for synchronization (pin 2). Besides, on chroma line from video SW to main route, the peak detection is done during the burst period. The result is responded to the Read BUS data, C ID.
VIDEO-SW SECTION CVBS1/Y1-IN CVBS2/Y2-IN CVBS3/Y3-IN A SW1 B C Y MIX C A B SW4 0 dB 0 dB SW3 A B 6 dB SW5 A B A B SW6 Yvi-OUT (to SYNC-IN) Main Y (to Y section) Main C (to C section) CVBS-OUT (to comb filter)
C1-IN C2-IN C3-IN
A SW2 B C
Chroma ID
(from comb filter) COMB Y-IN (from comb filter) COMB C-IN
Figure 1 Table 1
Bus Data 0000 0001 0010 0100 0101 0110 1000 1001 1010 others
Signal Route at Video SW Section
Selected Input and Pin 3/11 Output from Video SW Section
SW Mode 1 A B C A B C A B C A B C 2 3 A A A B B B A A A 4 A A A B B B 5 A A A A A A B B B 6 A A A A A A B B B To Y/C Section Main Y CVBS1 CVBS2 CVBS3 Y1 Y2 Y3 COMB Y COMB Y COMB Y Main C CVBS1 CVBS2 CVBS3 C1 C2 C3 COMB C COMB C COMB C Output from V-SW CVBS-Out CVBS1 CVBS2 CVBS3 Y1 + C1 Y2 + C2 Y3 + C3 CVBS1 CVBS2 CVBS3 Yvi-Out CVBS1 CVBS2 CVBS3 Y1 Y2 Y3 COMB Y COMB Y COMB Y
Don't use.
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External Input SWs
External inputs are selected by the BUS data and fast SWs. Final outputs from pin 21/22/23 are shown in Table 2. RGB1-IN interface complies with SCART connector. Therefore it is active, when RGB1-IN is enable by the BUS data and when YS3 (pin 15) is also high. The status of YS3 (pin 15) is responded to the Read BUS data, V15.
Table 2
RGB Select RGB1 ENB 0 00 1
Outputs from Pin 21/22/23
YS3 (RGB1) L H L H L RGB1 Main (from V-SW) YS1 (YCbCR2) YS2 (RGB2) Output
0 H 01 L 1 H L 0 H 10 L 1 H 11 H L H H 2 RGB2 YCbCr2 RGB1 L L RGB1 YCbCr1
Note2: RGB SELECT/RGB1 ENB: I C BUS data, YS1/2/3: Fast SW
Color System
Distinguishable color systems are selected by the write BUS data, COLOR SYSTEM. The demodulated color system is responded to the read BUS data, COLOR SYSTEM and X'TAL. (refer to BUS CONTROL FUNCTION) The system data is also responded to Comb SYS (pin 45) and fsc-OUT (pin 46) as Table 3. If distinguishable color system signal is not received, the system data is responded with B/W. Besides, if pin 7 is connected to VCC (more than 3.5 V), Forced SECAM mode is active. In this mode, SECAM system is identified forcibly. It has priority over the BUS selection.
Table 3
DC Level of Pin 45 and 46 on Each Color System
Color System M-PAL 4.43PAL, SECAM, B/W 3.58/4.43NTSC N-PAL Pin 45 Low High Low High Pin 46 Low Low High High
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Secam Bell Filter
SECAM bell filter characteristics can be changed by the BUS data, BELL/HPF. The group delay near chroma band is corrected by changing filter characteristic. As a result, S/N looks better. Besides, center frequency f0 of bell is changed by BELL f0. Indirectly, it is changed by BPF (TOF) f0.
Boost 1
Normal bell
Boost 2 Normal bell (a) Boost Mode HPF (b) HPF Mode
Figure 2
SECAM Bell Filter Characteristics
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Vertical Count-Down
In Automatic of V C/D MODE, the vertical synchronization is controlled by internal PLL. In Fast mode, it is synchronized with the inputted synchronizing signal and the pull-in time is short. Furthermore the time is shorter in Very fast mode by the expanded pull-in range. Pull-in range of vertical count-down is determined by the BUS data, V C/D MODE and V-FREQ as Table 4.
Table 4
V C/D Mode V C/D FREQ 000 001 010 011 100 101 110 111 Automatic 1 50 Hz 60 Hz Automatic 2 312.5 H 262.5 H 313 H 263 H
V C/D Pull-In Range
Normal 00, 11 224-353 H 274-353 H 224-297 H 224-353 H Teletext 01 224-353 H 274-353 H 224-297 H 224-353 H Fast 10 32-353 H 32-353 H 32-297 H 32-353 H
Forced 312.5 H mode&AFC free-run Forced 262.5 H mode&AFC free-run Forced 313 H mode&AFC free-run Forced 263 H mode&AFC free-run
Note3: 00, 11; Normal
Normal vertical input mode. It is good performance of vertical phase keeping for standard TV signal sync. This mode is recommended in the state of stability. And this mode can detect teletext or VCR skew sync. This mode is less performance of vertical phase keeping for standard TV signal sync against "Normal". However, pull-in speed is faster few vertical periods than "Normal". Therefore this mode is recommended for tesetext sync. On the other hand, this mode can detect standard TV signal sync in the state of stability but it is less performance of vertical phase keeping in week signal as about -3 dB against "Normal". This mode is same performance of vertical phase keeping for standard TV signal sync of "Teletext". But it is faster pull-in speed faster than "Teletext" because pull-in ranges wider than "Teletext". (refer to Table 5) Therefore, this mode is better to use when channel changing, but is not recommended to use in the state of stability or in week signal due to too wide pull-in range and incorrect actions of vertical keeping appearing.
Note4: 01; Teletext
Note5: 10; Fast
Y-DL Adjustment
Table 5 shows Y output delays against Y input on condition with BPF = f0, Q = 2.0, Y-DL = Min and LPF = ON. Y-out signal can be delayed by the BUS data, Y-DL. The adjustment time of one step is 40 ns.
Table 5
Y Ddelays According to the Color System
Color System PAL NTSC SECAM Y Delay (ns) 420 460 645
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TB1239BF
Pulses Timming
Horizontal Period (typical output phase of horizontal pulses)
Y Input
Delay time (see page 15)
Y Output
HS Output (HS - PH = 0) 0.4 s HS Output (HS - PH = 1) 2.9 s 3.7 s SCP Output (P/N GW = 0) 2.7 s 1.9 s SCP Output (P/N GW = 1) 3.2 s 3.2 s 2.0 s 4.7 s
60 Hz: 10.0 s 50 Hz: 11.3 s
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TB1239BF
Vertical Period (typical output phase of vertical pulse)
60 Hz ODD
Input 0.75 H VS Output 8H
SCP Output 15 H
60 Hz EVEN
Input 0.75 H VS Output 8H
SCP Output 15 H
50 Hz ODD
Input 0.75 H VS Output 8H
SCP Output 20 H
50 Hz EVEN
Input 0.75 H VS Output 8H
SCP Output 20 H
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TB1239BF
Maximum Ratings (Ta = 25C)
Characteristics Supply voltage Signal voltage at each input pin Power consumption Power consumption reduction ratio Operating temperature Storage temperature Symbol VCC/DDmax einmax PD (Note6) 1/ja Topr Tstg Rating 5.5 5 1644 13.16 -25 to 65 -55 to 150 Unit V Vp-p mW mW/C C C
Note6: Put on the circuit board. Refer to the figure below.
1644
Power consumption PD
(mW)
1052
13.16 mW/C
0 0
25
65
150
Ambient temperature Ta (C)
Figure 3 Supply Voltage
Characteristics Supply voltage
Power Consumption Reduction Against Ambient Temperature
Description Pin 6, 12, 32
Min 4.75
Typ. 5.0
Max 5.25
Unit V
Electrical Characteristics Current Consumption
Pin No. 6 12 32 Pin Name D VDD SYNC VCC Y/C VCC
(YC - VCC/SYNC - VCC/D - VDD = 5 V and Ta = 25C, unless otherwise specified)
Symbol IDD ICC1 ICC2
Min 4 9 75
Typ. 7 13.5 100
Max 15 20 130
Unit
mA
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Application Circuit
CVBS2/Y2-in
CVBS3/Y3-in
CVBS1/Y1-in
C1-in
C2-in
C3-in
5V
0.01 F 10 F 10 F 10 F 10 F 10 F 47 F 6.8 k 1.5 k 1.8 k 1.5 k 1.8 k 1.5 k 16 k 10 k 10 k 6.8 k 16 k 10 k 10 k 6.8 k 75 75 75 75 75
10 F
75 16 k 10 k 1.8 k
10 k
0.1 F
0.1 F
0.01 F Fsc-out 10 k 2.2 F 3.9 k Comb SYS 0.022 F
0.01 F
0.47 F 27 k 0.01 F
Comb Y-in 48 C1-IN 47 AFC-FIL 46 FSC-OUT 45 COMB SYS 44 CVBS2/Y2-IN 10 F 75 0.1 F 1 CVBS1/Y1-IN 6.8 k 1.5 k 0.1 F 2 SYNC-IN 16 k CVBS-out 3 Comb C-in CVBS-OUT 6.8 k 4 VS 10 F 75 0.1 F 5 10 k 1.8 k 6 0.01 F 0.01 F 7 47 F 10 k VS COMB Y-IN DIGITAL-VDD COMB C-IN /FORCED-S 8 2.7 k 9 HS HS 7.5 k SCP 11 47 F 0.01 F 12 13 SCL 100 14 SDA 100 10 DIGITAL-GND SCP YVI-OUT SYNC-VCC SCL SDA SYNC-GND 16 YS3 15 YS3 TB1239BF CLP-FIL 20 CR1-IN 17 0.1 F 75 Cr1-in 75 Cb1-in CB1-IN 18 0.1 F 75 Y1-in Y1-IN 19 0.1 F 4.7 F
39 C3-IN
40 APC-FIL
8CH A 42 ADDRESS Add SW 8AH B 88H 0.01 F 43 C2-IN 41 CVBS3/Y3-IN CB-OUT 22 Y-OUT 21 Y-out Cb-out
16.2 MHz 10 pF 38 X'tal 37 FIL 36 YS2/YM 35 R2-IN 34 G2-IN 33 B2-IN 32 Y/C-VCC 31 Y2-IN 30 CB2-IN 29 CR2-IN 28 Y/C-GND 0.1 F 27 R1-IN 26 G1-IN 25 B1-IN CR-OUT 23 Cr-out 75 0.1 F 75 0.1 F 75 B1-in G1-in R1-in 0.1 F 75 0.1 F 75 0.1 F 75 0.01 F 47 F 0.1 F 75 0.1 F 75 0.1 F 75 Cr2-in Cb2-in Y2-in YS2/YM R2-in G2-in B2-in
YS1 24 YS1
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TB1239BF
TB1239BF
Package Dimensions
Weight: 0.83 g (typ.)
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