TOSHIBA TB1274BFG

TB1274BFG
TOSHIBA Bi-CMOS INTEGRATED CIRCUIT
SILICON MONOLITHIC
TB1274BFG
LUMINANCE,
CHROMA
AND
SYNCHRONIZING SIGNALS PROCESSOR IC
FOR PAL / NTSC / SECAM COLOR TV
TB1274BFG integrates luminance, chroma and synchronizing
signals processing circuits for PAL / NTSC / SECAM color TV
system.
TB1274BFG 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 4.43MHz, 3.58MHz and
QFP48-P-1014-0.80
M/N-PAL clock signals internally for color demodulation. A
horizontal PLL circuit is also built in this IC.
Weight : 0.83 g (Typ.)
PAL
/
SECAM
demodulation
circuits
which
are
adjustment-free circuits incorporates a 1H DL circuit inside for
operating the base band signal processing system.
Also, TB1274BFG 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
• Y delay line
• Sharpness control
• Sub-Contrast control (-/+ 2dB)
• Black set-up
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
CHROMA SECTION
• Built-in 1H delay circuit (PAL / SECAM base band
demodulation system)
• One crystal color demodulation circuit (4.43MHz,
3.58MHz, M/N-PAL)
• Automatic system discrimination system and
forced system mode
• 1H delay line also serves as comb filter in NTSC
demodulation
• Built-in band-pass and take-off filter, SECAM bell
filter
• Sub-Color control (-/+2dB)
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
1
2005-08-18
46
47
48
Comb SYS
Fsc-out
AFC-fil
C1-in
14
13
12
11
10
9
8
7
I2C BUS
CONTROL
6
AFC
SYNC
SEPA
5
H
VCO
H C/D
+
V
INTEG
4
CHROMA
TRAP
V
SEPA
V C/D
SW
3
CHROMA
ID
S DOUBLE
TRAP
EQ
2
Y
COLOR
SYSTEM
SECAM
ID
BELL
Y DL
1
C CVBS/YC
SELECT
ACC
BPF/
TOF
P/N ID
BLACK
ADJ
SECAM
DEMO
CVBS1/Y1-in
45
P/N
DEMO
SUBCONTRAST
Sync-in
44
DEEMPHASIS
CVBS-out
CVBS2/Y2-in
SW
(C-MUTE)
25
VS
43
Y
MATRIX
CLAMP
26
27
Comb Y-in
C2-in
LPF
28
Digital-VDD
ADDRESS
1H DL
SW
Cb/Cr
29
Cr2-in
Comb C-in
/ Forced-S
42
BASEBAND SW
SUBCOLOR
OFFSET2
CLAMP
30
HALF TONE
Digital-GND
41
31
SW
HS
CVBS3/Y3-in
MATRIX
Y/C-VCC
32
Y/C-GND
SCP
40
CW
PHASE
CLAMP
B2-in
33
R1-in
Yvi-out
APC-fil
APC
G2-in
34
B1-in
Sync-VCC
39
TINT
R2-in
35
LPF
SCL
2
SDA
C3-in
X'tal
fsc
fil
VCXO
YS2/YM
(RGB2-in)
36
Y2-in
OFFSET1
Cb2-in
SW
37
CLP
MASK
G1-in
DL
SHARPNESS
38
Cr-out
23
Cb1-in
Cr1-in
Sync-GND
YS3
(RGB1-in)
17
16
15
Y1-in
CLP-fil
Y-out
18
19
20
21
22 Cb-out
YS1
(YCbCr2-in)
24
TB1274BFG
BLOCK DIAGRAM
2005-08-18
CLAMP
SET-UP
AMP
TB1274BFG
TERMINAL DESCRIPTIONS (YC-VCC/SYNC-VCC/D-VDD=5V and Ta=25℃, unless otherwise specified)
PIN
INPUT / OUTPUT
PIN NAME
FUNCTION
INTERFACE CIRCUIT
No.
SIGNALS
2.5V
32
Input CVBS1/Y1 signal through a
clamping capacitor.
1
CVBS : 1Vp-p
Y : 1Vp-p(with sync)
DC : 1.8V
250Ω
50μA
CVBS1/Y1-IN
50μA
1
28
12
1kΩ
SYNC-IN
1Vp-p (with sync)
DC : 1.7V
2
Input signal to synchronize.
1.5V
2
16
100Ω
32
CVBS-OUT
CVBS or Y+C signal output pin.
2Vp-p(with sync)
DC : 0.6V
50Ω
3
8kΩ
700μA
3
28
4
VS
120μA
12
Output
pin
of
vertical
synchronizing signal.
Minimum pull-up resister is
6.8kΩ.
4
Hi
Low
50Ω
4.7V≦Hi≦5.2V
0V≦Low≦0.8V
16
5
COMB Y-IN
Input luminance signal from
Comb filter through a clamping
capacitor.
D-VDD
Power
supply
pin
for
DDS/BUS/V-CD/H-CD sections.
COMB C-IN
/ FORCED-S
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.
2.5V
32
5
1Vp-p(with sync)
DC : 1.8V
250Ω
28
32
250Ω
7
C
0.3Vp-p(Burst)
DC : 2.4V
Forced-S
40kΩ
4.0V≦Forced-S≦5.0V
(Th : 3.5V)
20kΩ
3.5V
50kΩ
40pF
7
DC 5V
－
2.4V
6
28
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2005-08-18
TB1274BFG
PIN
No.
8
PIN NAME
D-GND
FUNCTION
INTERFACE CIRCUIT
GND
pin
for
DDS/BUS/V-CD/H-CD sections.
－
INPUT / OUTPUT
SIGNALS
HS
Output
pin
of
horizontal
synchronizing signal.
Minimum pull-down resister is
2.7kΩ.
9
Hi
Low
50Ω
20kΩ
9
125Ω
12
3.8V≦Hi≦4.6V
0≦Low≦1.0V
16
CP
10
SCP
100Ω
12
Sand Castle Pulse output pin.
The clamping pulse and the
horizontal blanking pulse are
outputted.
H-BLK
Low
10
3.6V≦CP≦4.4V
1.6V≦H-BLK≦2.4V
0.0V≦Low≦0.8V
with pull-down
resister (7.5kΩ)
50Ω
16
100Ω
12
Yvi-OUT
Output pin to synchronize
inputs. Y signal from video-SW is
outputted.
SYNC-VCC
Power supply pin for
SYNC/HVCO sections.
11
1Vp-p(with sync)
DC : 2.1V
50Ω
8kΩ
11
16
12
liner
DC 5V
－
SCL
SCL pin for I2CBUS.
3kΩ
13
SCL
SCL
2.7V
13
15kΩ
100kΩ
6
8
SDA
SDA pin for I2CBUS.
14
50Ω
3kΩ
2.7V
14
15kΩ
100kΩ
6
SDA
SDA
ACK
16
YS3
(RGB1-in)
SYNC-GND
8
32
15
1.0V≦RGB1≦5.0V
(Th : 0.7V)
6kΩ
30kΩ
15
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.
GND pin for liner SYNC/HVCO
sections.
28
－
4
2005-08-18
TB1274BFG
PIN
No.
PIN NAME
FUNCTION
INPUT / OUTPUT
SIGNALS
INTERFACE CIRCUIT
32
17
Cr1-IN
240Ω
17,18
240Ω
18
2.5V
240Ω
Cb1-IN
28
32
Input Y1/Cb1/Cr1 signal through
a clamping capacitor.
(Selected by I2C BUS.)
When Y/Cb/Cr1-IN is active, Y1
signal is synchronized.
1kΩ
Cb/Cr : 0.7Vp-p(100％
color bar)
DC : 2.5V
1kΩ
19
Y : 1Vp-p(with sync)
DC : 1.7V
Y1-IN
19
5kΩ
28
32
20
CLP-FIL
Connect a filter for clamping Y
signal.
10kΩ
20
50Ω
28
32
22
Cb-OUT
23
Cr-OUT
100Ω
Y-OUT
Y/Cb/Cr output pins.
The
output’s
amplitudes
is
variable from 0.5 to 1.6Vp-p by
I2C BUS.
DC ;
Y : 1.3V, Cb/Cr : 1.8V
21,22,23
50Ω
700µA
21
28
AC ;
Y
:
0.7Vp-p(0dB,non-sync)
Cb/Cr : 0.7Vp-p(0dB)
YS1
(YCbCr2-in)
Pin to switch main signals and
YCbCr2 signals.
24
1.0V≦YCbCr2≦5.0V
(Th : 0.7V)
6.1kΩ
30kΩ
24
10kΩ
32
28
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2005-08-18
TB1274BFG
PIN
No.
PIN NAME
FUNCTION
INPUT / OUTPUT
SIGNALS
INTERFACE CIRCUIT
32
B1-IN
26
G1-IN
Input RGB1 signal through a
clamping capacitor.(Selected by
YS3 and I2C BUS.)
0.7Vp-p
DC : 2.5V
250Ω
25,26,27
250Ω
250Ω
2.5V
25
27
R1-IN
28
28
Y/C-GND
GND
pin
Y/C/Text/Video-SW/1HDL
sections.
for
－
32
29
Cr2-IN
270Ω
29,30
240Ω
270Ω
2.5V
30
DAC
OFFSET
Cb2-IN
28
Input Y2/Cb2/Cr2 signal through
a clamping capacitor. (Selected by
YS1.)
Cb/Cr : 0.7Vp-p(100％
color bar)
DC : 2.5V
240Ω
Y2-IN
31
240Ω
240Ω
1.7V
31
32
Y : 1Vp-p(with sync)
DC : 1.7V
28
32
Y/C-VCC
33
B2-IN
34
G2-IN
Power supply pin for Y/C/Text/
Video-SW/1HDL sections.
DC 5V
－
32
0.7Vp-p
DC : 2.5V
250Ω
33,34,35
250Ω
250Ω
2.5V
Input RGB2 signal through a
clamping capacitor. (Selected by
YS2.)
35
R2-IN
28
32
4kΩ
1.0V≦YM≦1.5V
2.5V≦RGB2≦5.0V
(Th1 : 0.7V, Th2 :
2.0V)
36
6kΩ
30kΩ
36
YS2/YM
(RGB2-in)
Pin to switch main signals and
RGB2 inputs.
Half-tone ON/OFF SW is also
included. Half tone gain is
selected by I2C BUS.
28
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2005-08-18
TB1274BFG
PIN
No.
37
FUNCTION
INTERFACE CIRCUIT
INPUT / OUTPUT
SIGNALS
Connect this terminal to Y/C
VCC.
–
–
PIN NAME
FIL
32
38
X’TAL
Pin to connect a 16.2MHz crystal.
Recommended crystal :
NR-18 NT162020A, made by
NIHON DENPA KOGYO CO,
LTD.
38
500Ω
1kΩ
500Ω
1kΩ
16.2MHz wave
28
32
a
39
0.3Vp-p(Burst)
DC : 1.6V
250Ω
50μA
through
50μA
Input C3 signal
clamping capacitor.
40kΩ
C3-IN
1.6V
39
28
32
APC-FIL
200Ω
40
Connect APC filer.
110kΩ
3.2V
40
28
2.5V
32
Input CVBS3/Y3 signal through a
clamping capacitor.
41
CVBS : 1Vp-p
Y : 1Vp-p(with sync)
DC : 1.8V
250Ω
50μA
CVBS3/Y3-IN
50μA
41
28
88H
89H
8AH
8BH
8EH
8FH
42
6kΩ
W
R
100kΩ
ADDRESS
88/89H≦1.3V
3.9V≦8E/8FH
(Th1 : 1.5V, Th2 :
3.2V)
3kΩ
100kΩ
42
6
100kΩ
Slave address setting pin. Select
slave address. When this pin is
open, 8A/8BH is selected.
8
32
a
43
250Ω
0.3Vp-p(Burst)
DC : 1.6V
50μA
through
50μA
Input C2 signal
clamping capacitor.
40kΩ
C2-IN
1.6V
43
28
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2005-08-18
TB1274BFG
PIN
No.
PIN NAME
FUNCTION
INPUT / OUTPUT
SIGNALS
INTERFACE CIRCUIT
2.5V
32
Input CVBS2/Y2 signal through a
clamping capacitor.
44
CVBS : 1Vp-p
Y : 1Vp-p(with sync)
DC : 1.8V
250Ω
50μA
CVBS2/Y2-IN
50μA
44
28
The status of color system is
responded to pin 45 and pin 46. It
is the same as Read BUS status.
45
COMB SYS
Refer
to
DESCRIPTION.
Pin 45
Low
High
Low
High
50kΩ
Color system
M-PAL
4.43PAL, SECAM, B/W
3.58/4.43NTSC
N-PAL
32
Pin 46
Low
Low
High
High
5V
High
45
Low
FUNCTION
28
32
Fsc-OUT
Sub-carrier output pin.
Refer
to
FUNCTION
DESCRIPTION.
46
AC : 0.84Vp-p
DC : as blow fig.
(3.1V)
100Ω
220μA
46
0V
High
Low
(2.1V)
28
12
47
AFC-FIL
47
Connect AFC filter.
300Ω
300Ω
16
32
0.3Vp-p(Burst)
DC : 1.6V
a
48
250Ω
50μA
through
50μA
Input C1 signal
clamping capacitor.
40kΩ
C1-IN
1.6V
48
28
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2005-08-18
TB1274BFG
WRITE MODE
SLAVE ADDRESS : 88H / 8AH / 8EH
SUB
MSB
LSB
ADDRESS
D7
D6
D5
D4
D3
D2
D1
D0
80
P/N ID
P/N GW
TINT
81
SUB-CONTRAST
SUB-COLOR
82
SHARPNESS GAIN
SHARPNESS EQ
SHARPNESS f0
83
0
0
Y-OUT LEVEL
84
0
0
C-OUT LEVEL
85
LPF
S-D TRAP
C-TRAP SW
FILTER SW
BPF Q
BPF f0
86
N-COMB
Y-DL
COLOR SYSTEM
87
Cb/Cr-MUTE HALF TONE
RGB SELECT
VIDEO SELECT
88
Cb OFFSET1
Cr OFFSET1
89
Cb OFFSET2
Cr OFFSET2
8A
MVM
AFC GAIN
V C/D MODE
V-FREQ
8B
S B-Y ADJ
S R-Y ADJ
8C
S-INHBT
S ID
S GP
S V-ID
BELL f0
BELL/HPF
8D
AUTO-SW
0
0
0
HS-PH
0
SETUP-SW
RGB1 ENB
8E
0
VP-PH
1
0
0
0
0
0
8F
TEST MODE
READ MODE
SLAVE ADDRESS : 89H / 8BH / 8FH
SUB
MSB
ADDRESS
D7
D6
D5
00
POR
COLOR SYSTEM
01
V-FREQ
V-STD
C ID
D4
D3
D2
V15
*
X’TAL
V-SIG
D1
N-DET
*
PRESET
0010
1000
1000
0010
0010
0000
0010
0000
1000
1000
0000
1000
0000
1000
0010
0000
0000
1000
0000
0000
0000
0000
1000
0000
1000
1000
0000
1000
0000
0000
0000
0000
LSB
D0
H-LOCK
1
Note) * ; don’t care
9
2005-08-18
TB1274BFG
BUS CONTROL FUNCTION
WRITE MODE
SLAVE ADDRESS : 88H / 8AH / 8EH
ITEM / Number of bits
FUNCTION
VARIABLE RANGE
TINT / ⑥
TINT adjustment for NTSC
P/N GW / ①
P/N ID / ①
SUB-COLOR / ④
SUB-CONTRAST / ④
SHARPNESS f0 / ②
PAL/NTSC gate width
PAL/NTSC sensitivity SW
Sub-color control
Sub-contrast control
Sharpness center frequency changing
SHARPNESS EQ / ② Sharpness equalizer characteristic
(Evaluation with 2T-pulse)
SHARPNESS GAIN / Sharpness gain control
④
Y output level control (pin 21)
Y-OUT LEVEL / ⑥
Cb/Cr output level control (pin 22/23)
C-OUT LEVEL / ⑥
BPF/TOF f0 adjustment
BPF f0 / ②
BPF Q / ②
BPF/TOF Q adjustment
BPF/TOF switch
Chroma trap switch
This
function
is
controlled
automatically by setting of “VIDEO
SELECT” and “Y/C-AUTO”.
Refer to FUNCTION DESCRIPTION.
SECAM double trap switch
S-D TRAP / ①
This
function
is
controlled
automatically by setting of “VIDEO
SELECT” and “Y/C-AUTO”.
Refer to FUNCTION DESCRIPTION.
Y/Cb/Cr LPF switch
LPF / ①
COLOR SYSTEM / ③ 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.
Y-DL time adjustment (1LSB=40ns)
Y-DL / ④
Refer to FUNCTION DESCRIPTION.
FILTER SW / ①
C-TRAP SW / ①
10
00H : -33deg～3F H : +33deg
(1LSB=1.1deg)
0 : 2.0μs, 1 : 3.2μs
0 : Normal, 1 : Low
0 H : -2dB ～ F H : 2dB
0 H : -2dB ～ F H : 2dB
00 : 2.5MHz, 01 : 3.2MHz
10 : 4.0MHz, 11 : OFF
00 : 1 : 1.2, 01 : 1 : 1
10 : 1.2 : 1, 11 : 1.4 : 1
0 H : -6dB ～ F H : 6dB
00 H : 0.5 ～ 3F H : 1.6Vp-p
00 H : 0.5 ～ 3F H : 1.6Vp-p
00 : -400kHz, 01 : +0kHz,
10 : +400kHz, 11 : OFF(by-pass)
00 : 1.0, 01 : 1.5
10 : 2.0, 11 : 2.5
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 : 3.58NTSC
011 : 4.43NTSC
100 : 4.43PAL
101 : SECAM
110 : M-PAL, 111 : N-PAL
0000 : 120 ～ 1010 : 520ns
1011 ～ 1111 : don’t use
PRESET
0deg
2.0μs
Normal
0dB
0dB
2.5MHz
1 : 1.2
0dB
1.05Vp-p
1.05Vp-p
-400kHz
1.0
BPF
ON
OFF
ON
Europe
automatic
320ns
2005-08-18
TB1274BFG
ITEM / Number of bits
FUNCTION
VARIABLE RANGE
1H addition switch, when NTCS.
N-COMB / ①
VIDEO SELECT / ④ Selection of input video signals
OFF
0000
RGB SELECT / ②
Main
HALF TONE / ①
Cb/Cr-MUTE / ①
Cb/Cr OFFSET1 /
④/④
Cb/Cr OFFSET2 /
④/④
V-FREQ / ③
V C/D MODE / ②
0 : OFF, 1 : ADD
Refer to
FUNCTION DESCRIPTION.
Selection of input sources.
00 : Main, 01 : YCbCr1
Refer to FUNCTION DESCRIPTION. 10 : RGB1, 11 : don’t use
Half tone gain switch
0 : -10dB, 1 : -6dB
Cb/Cr output mute switch
0 : OFF, 1 : ON
Cb/Cr offset adjustment (main route) 0 H : -12 ～ F H : +10.5mV
PRESET
Cb/Cr offset adjustment (YCbCr2
input)
V count down frequency switch.
Automatic mode 1 ;
50/60Hz automatic distinction. At
no-signal, the last statement is
kept. Right after power-on, 50Hz
mode is run.
Automatic mode 2 ;
50/60Hz automatic distinction. And
50Hz mode is run at no-signal.
Refer to FUNCTION DESCRIPTION.
V count down judge switch.
Refer to FUNCTION DESCRIPTION.
0 H : -12 ～ F H : +10.5mV
-10dB
OFF
0mV
0mV
Automatic
000 : Automatic mode 1,
mode 1
001 : 50Hz, 010 : 60Hz,
011 : Automatic mode 2,
100 : Forced 312.5H (AFC
free-run),
101 : Forced 262.5H (AFC
free-run),
110 : Forced 313H (AFC
free-run),
111 : Forced 263H (AFC free-run)
00 :Normal 1, 01 : Teletext,
Normal 1
10 : Fast, 11 : Normal 2
note)
Normal 1 : One time detection
Normal 2 : Continuously detection
AFC SENS / ②
MVM / ①
S R-Y ADJ / ④
S B-Y ADJ / ④
BELL/HPF / ②
BELL f0 / ①
S V-ID SW / ①
S GP / ②
S ID / ①
S-INHBT / ①
RGB1 ENB / ①
AFC sensitivity switch
00 : +6dB, 01 : 0dB,
10 : -6dB, 11 : -17dB
Macrovision Mask + AFC Mask
0 : Narrow, 1 : Always masked
SECAM R-Y black adjustment
0 H : -10 ～ F H : 8.8mV
SECAM B-Y black adjustment
0 H : -10 ～ F H : 8.8mV
SECAM bell/HPF switching. Or the 00 : Bell, 01 : Boost 1,
high frequency side on SECAM bell 10 : Boost 2, 11 : HPF
filter is boosted.
Refer to FUNCTION DESCRIPTION.
0 : Normal, 1 : +15kHz
BELL f0 adjustment
SECAM V-ID switch
0 : OFF, 1 : ON
SECAM gate position adjustment (Its 00 : Normal, 01 : 0.4μs delay,
width is same)
10 : Normal, 11 : 0.4μs forward
SECAM sensitivity switch
0 : Normal, 1 : Low
SECAM inhibition switch
0 : Normal, 1 : Inhibited
Enable YS3 to switch to RGB1-IN.
0 : Disable, 1 : Enable
Refer to FUNCTION DESCRIPTION.
11
+6dB
(data : 00)
Narrow
0mV
0mV
Bell
Normal
OFF
Normal
Normal
Normal
Disable
2005-08-18
TB1274BFG
ITEM / Number of bits
FUNCTION
VARIABLE RANGE
VP-PH / ①
SETUP-SW / ①
HS-PH / ①
Auto Video select mode SW
Select automatically for CVBS, Y/C
and Comb mode by setting of
“AUTO-SW” and “VIDEO SELECT”.
And also select automatically for
C-Trap and S-D Trap.
Refer to FUNCTION DESCRIPTION.
Switching for VP output phase
Y black level set-up
HS Output phase switch
TEST MODE / ⑧
Factory test mode. Set all zero.
AUTO SW / ①
READ MODE
SLAVE ADDRESS : 89H / 8BH / 8FH
ITEM / Number of
FUNCTION
bits
H. Lock detection
H-LOCK / ①
Noise judgment
N-DET / ②
X’TAL / ②
Crystal mode judgment
COLOR SYSTEM
/ ②
POR / ①
V15 / ①
Color system judgment
V-SIG / ①
C ID / ①
V-STD / ①
V-FREQ / ①
SA 01 D0 / ①
PRESET
0 : Auto select
Data of SA 07H D3
0 : Auto Y/C select mode
1 : Auto Comb select mode
1 : Manual select
Manual
Select
0 : +0.75H, 1 : +0.6875H
0 : Normal, 1 : Set-up
0 : H-Sync(4.7μs),
1 : GP(3.2μs)
－
+0.75H
Normal
H-Sync
00H
VARIABLE RANGE
Power On Reset
Status of pin 15 voltage
Refer to FUNCTION DESCRIPTION.
Internal V. pulse detection for V. lock
Input signal condition (Detection of
burst signal on C-IN pins)
Refer to FUNCTION DESCRIPTION.
Decision on the standard of the
vertical frequency.
When no-signal, 1 : STD is responded.
Vertical frequency judgment.
Right after power-on, 0 : 50Hz is
responded.
At no-signal, the last statement is
kept.
The bit for product ident
12
0 : Un-lock, 1 : Lock
00 : SN > 40dB,
01 : 10dB > SN,
10 : 40dB > SN > 20dB,
11 : 20dB > SN > 10dB
00 : 4.433619MHz(PAL)
01 : 3.579545MHz(NTSC)
10 : 3.575611MHz(M-PAL)
11 : 3.582056MHz(N-PAL)
00 : B/W, 01 : PAL
10 : NTSC, 11 : SECAM
0 : Normal, 1 : Resistor preset
0 : Low, 1 : High
0 : Existing, 1 : Not existing
0 : Not detected (CVBS),
1 : Detected (Y/C)
0 : Non-STD,
0 : 50Hz,
1 : STD
1 : 60Hz
0 : TB1239**,
1 : TB1274**
2005-08-18
TB1274BFG
I2C BUS START-UP PROCEDURE
Just after power-on, TB1274BFG starts tuning automatically. Initially, I2C-BUS decoder works, and then
H-VCO alignment circuit works. The following figure describes the start-up status. While Vcc is lower than
3.4V, Power-On-Reset flag indicates 1. To make TB1274BFG functioning properly, verify that POR bit is 0 by
reading the I2C BUS status data before writing data. POR is released by reading status data. Please refer the
following figure and optimize the software on the set.
1. Power on the device.
2. Read the I2C BUS status bytes until POR bit indicates 0.
3. Write all bytes.
V
typ.Vcc
Power Supply
Voltage
5
3.8
3.4
H-VCO Internal alignance start
BUS Power ON Reset (POR)
Time going
Fig.
t
Start-up status in the IC
13
2005-08-18
TB1274BFG
DATA TRANSFER FORMAT VIA I2C BUS
Slave address : select slave address for setting voltage of pin 42.
Pin42–GND(<1.3V) : 88H
Pin42–Open : 8AH
A6
A5
A4
A3
A2
A1
A0
W/R
A6
A5
A4
A3
A2
A1
A0
W/R
1
0
0
0
1
0
0
0/1
1
0
0
0
1
0
1
0/1
Pin42–VDD(>3.9V) : 8EH
A6
A5
A4
A3
A2
A1
A0
W/R
1
0
0
0
1
1
1
0/1
Start and stop condition
SDA
SCL
S
P
Start condition
Stop condition
Bit transfer
SDA
SCL
SDA stable
Change of SDA allowed
Acknowledge
SDA by
transmitter
The transmitter releases the SDA line (HIGH)
during the acknowledge clock pulse.
SDA by
receiver
The receiver has to pull down the SDA line
(LOW) during the acknowledge clock pulse.
SCL from
master
1
S
8
9
Clock pulse for acknowledgment
Data transmit format 1
S
Slave address
0 A 1
7bit
MSB
Sub address
A
Transmit data
A P
8bit
7bit
MSB
MSB
Data transmit format 2
S
Slave address
0 A 1
Sub address
1
A
Transmit data 1
Sub address
14
A
A
Transmit data n
A P
2005-08-18
TB1274BFG
Data receive format
S
Slave address
1 A
Received data 00
7bit
MSB
A
Received data 01
A P
8bit
MSB
At the moment of the first acknowledge, the master transmitter becomes a master receiver and the slave
receiver becomes a slave transmitter. This acknowledge is still generated by the slave.
The Stop condition is generated by the master.
Option Data transmit format
Automatic increment mode 1
S
Slave address
7bit
MSB
S : Start condition
0 A 0
Sub address
A
Transmit data
A P
8bit
7bit
MSB
A : Acknowledge
MSB
P : Stop condition
Automatic increment mode 2
S
Slave address
0 A 0
Sub address
7bit
A
Transmit data 1
Transmit data n
8bit
8bit
7bit
A P
In this transmission method, data is set on automatically incremented sub-address from the specified
sub-address.
I2C BUS Conditions
Characteristics
Symbol
Min
Typ.
Max
Unit
Low level input voltage
VIL
0
⎯
1.3
V
High level input voltage
VIH
3.8
⎯
Vcc
V
VOL1
0
⎯
0.4
V
Input current each I/O pin with an input voltage
between 0.1 VDD and 0.9 VDD
Ii
−10
⎯
10
µA
Capacitance for each I/O pin
Ci
⎯
⎯
10
pF
Low level output voltage at 3 mA sink current
fSCL
0
⎯
100
kHz
tHD;STA
4.0
⎯
⎯
µs
Low period of SCL clock
tLOW
4.7
⎯
⎯
µs
High period of SCL clock
tHIGH
4.0
⎯
⎯
µs
Set-up time for a repeated START condition
tSU;STA
4.7
⎯
⎯
µs
Data hold time
tHD;DAT
50
⎯
⎯
ns
Data set-up time
tSU;DAT
250
⎯
⎯
ns
Set-up time for STOP condition
tSU;STO
4.0
⎯
⎯
µs
tBUF
4.7
⎯
⎯
µs
SCL clock frequency
Hold time START condition
Bus free time between a STOP and START condition
15
2005-08-18
TB1274BFG
FUNCTION DESCRIPTION
VIDEO SELECT, AUTO-SW
1) “AUTO-SW” = (1) Manual select
When “AUTO-SW” is (1) Manual select, input signal is selected by the BUS as Fig. 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
B
C
SW1
SW3
CVBS-OUT (to Comb filter)
A
B
Y
6dB
Yvi-OUT (to SYNC-IN)
MIX
C
C1-IN
C2-IN
C3-IN
A
B
C
SW2
A
B
SW4
A
B
Main Y (to Y section)
A
B
Main C (to C section)
SW6
0dB
(from Comb filter) COMB Y-IN
Chroma ID
0dB
(from Comb filter) COMB C-IN
Fig. 1
Table 1
BUS
DATA
1
0000
A
0001
B
0010
C
0100
A
0101
B
0110
C
1000
A
1001
B
1010
C
others －
SW5
Signal route at Video SW section
Selected input and pin 3/11 output from Video SW section
SW mode
To Y/C section
Output from V-SW
2
3
4
5
6
Main Y
Main C
CVBS-out
Yvi-out
A A A A
CVBS1
CVBS1
CVBS1
CVBS1
A A A A
CVBS2
CVBS2
CVBS2
CVBS2
A A A A
CVBS3
CVBS3
CVBS3
CVBS3
A B B A A
Y1
C1
Y1+C1
Y1
B B B A A
Y2
C2
Y2+C2
Y2
C B B A A
Y3
C3
Y3+C3
Y3
A
B B COMB Y
COMB C
CVBS1
COMB Y
A
B B COMB Y
COMB C
CVBS2
COMB Y
A
B B COMB Y
COMB C
CVBS3
COMB Y
Don’t use.
－ － － － －
16
2005-08-18
TB1274BFG
2) “AUTO-SW” = (0) Auto select
Depending on this function and VIDEO SELECT, can select Auto Y/C select mode or Auto Comb select
mode (Table 2). The input system chose automatically by the sate of color system detection and C-ID
(Chroma ident detection). And C-TRAP and S-D TRAP selected also automatically.
Table 2 The changing Selective Mode
SA07H D3
Selective Mode
Content
0
Auto Y/C select
Automatic input select CVBS input or Y/C input
1
Auto Comb select Automatic input select Y/C-input and comb Y/C-input
Table 3 The changing input system
SA07H D1 SA07H D0
Input system
0
0
CVBS1 system
0
1
CVBS2 system
1
0
CVBS3 system
1
1
Don’t use.
Table 4 The changing input system and The changing TRAP
The state of detection
The changing input system
Selective
Mode
C-ID
Color System
Y
C
CVBS-out
4.43PAL, M/N-PAL,
3.58/4.43NTSC
Detected
Y
C
Y+C
SECAM
Auto Y/C
B/W
Select
4.43PAL, M/N-PAL,
3.58/4.43NTSC
Not
CVBS
CVBS
CVBS
detected
SECAM
B/W
4.43PAL, M/N-PAL,
3.58/4.43NTSC
Detected
Y
C
Y+C
SECAM
Auto Comb
B/W
Select
4.43PAL, M/N-PAL,
Comb-Y Comb-C
CVBS
3.58/4.43NTSC
Not
detected
SECAM
CVBS
CVBS
CVBS
B/W
The changing TRAP
C-TRAP S-D TRAP
OFF
OFF
ON
ON
OFF
OFF
ON
OFF
ON
OFF
Table 5
The neglecting control items
Item
Content
SA07H D2 (: VIDEO SELECT)
Neglecting
SA05H D5 : C-TRAP
date setting
SA05H D6 : S-D TRAP
Note) Depending on the input signal state, this function may malfunction.
17
2005-08-18
TB1274BFG
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 6. 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 6 Outputs from pin 21/22/23
RGB
YS3
YS1
YS2
RGB1 ENB
Output
SELECT
(RGB1) (YCbCR2)
(RGB2)
L
0
Main
H
(from V-SW)
00
L
1
H
RGB1
L
0
YCbCr1
H
01
L
L
1
L
H
RGB1
L
0
H
RGB1
10
L
1
H
－
－
－
11
－
－
－
H
YCbCr2
－
－
－
L
H
RGB2
－
－
－
H
RGB SELECT/RGB1 ENB : I2C BUS data, YS1/2/3 : Fast SW
COLOR SYSTEM
Distinguishable color systems are selected
Table 7 DC level of pin 45 and 46 on each color system
by the write BUS data, COLOR SYSTEM.
COLOR SYSTEM
Pin 45
Pin46
The demodulated color system is responded
to the read BUS data, COLOR SYSTEM and
M-PAL
Low
Low
X’TAL.
(Refer
to
BUS
CONTROL
4.43PAL,
SECAM,
High
Low
FUNCTION) The system data is also
B/W
responded to Comb SYS(pin 45) and
3.58/4.43NTSC
Low
High
fsc-OUT(pin 46) as Table 7. If distinguishable
N-PAL
High
High
color system signal is not received, the
system data is responded with B/W.
Besides, if pin 7 is connected to VCC(more than 3.5V), Forced SECAM mode is active. In this mode, SECAM
system is identified forcibly. It has priority over the BUS selection.
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.
Normal bell
Boost 2
Boost 1
HPF
Normal bell
(a) Boost mode
Fig.2
(b) HPF mode
SECAM bell filter characteristics
18
2005-08-18
TB1274BFG
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 8.
Table 8
V C/D pull-in range
Teletext
Fast
V C/D MODE Normal 1, 2
V FREQ
00, 11
01
10
000
Automatic 1
224-353H
32-353H
001
50Hz
274-353H
32-353H
010
60Hz
224-297H
32-297H
011
Automatic 2
224-353H
32-353H
100
312.5H
Forced 312.5H mode & AFC free-run
101
262.5H
Forced 262.5H mode & AFC free-run
110
313H
Forced 313H mode & AFC free-run
111
263H
Forced 263H mode & AFC free-run
00 ; Normal 1
Normal vertical input mode 1. It is good performance of vertical phase keeping for
standard TV signal sync. And vertical output phase that is detected first time is kept
always. And this mode can detect teletext or VCR skew sync (non-standard sync).
01 ; Teletext
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
–3dB against “Normal”.
10 ; Fast
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 8)
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.
11 ; Normal 2
Basic detecting function is same as “Normal 1”. And in “Normal 1” mode, the vertical
output phase that is detected first time is kept, however, in this mode, the vertical
output phase is detected always.
Y-DL ADJUSTMENT
Table 9 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 40ns.
Table 9 Y delays according to the color system
Color system
Y delay (ns)
PAL
450
NTSC
450
SECAM
650
19
2005-08-18
TB1274BFG
PULSES TIMMING
HORIZONTAL PERIOD (Typical output phase of horizontal pulses)
Y input
Delay time
(See Table 5)
Y output
HS output
(HS-PH=0)
HS output
(HS-PH=1)
0.4us
0.4us
2.9us
3.2us
3.7us 2.0us
SCP output
(P/N GW=0)
60Hz : 10.0us
50Hz : 11.3us
2.7us
2.9us
SCP output
(P/N GW=1)
3.2us
20
2005-08-18
TB1274BFG
VERTICAL PERIOD (Typical output phase of vertical pulse)
60Hz ODD
Input
0.75H
VS output
8H
SCP output
15H
60Hz EVEN
Input
0.75H
VS output
8H
SCP output
15H
50Hz ODD
Input
0.75H
VS output
8H
SCP output
20H
50Hz EVEN
Input
0.75H
VS output
8H
SCP output
20H
21
2005-08-18
TB1274BFG
MISCELLANEOUS CHARACTERISTICS
SHARPNESS=OFF, LPF=OFF. Other BUS data is preset, unless otherwise specially.
Sub-contrast characteristic
Sharpness characteristics
2
10
8
6
1.5
0.5
Gain [dB]
Y-out level [dB]
1
0
-0.5
-1
MAX
4
2
0
-2
-4
CNT
-6
-8
-10
-1.5
-2
MIN
-2.5
1
0
3
6
9
12
2.5MHz
3.2MHz
4.0MHz
2
3
4
Frequency [MHz]
15
5
6
BUS data
INPUT : RAMP 0.7Vp-p
Sub-color characteristic
Cb/Cr offset1 characteristic
2
15
1.5
10
Cb-out offset [mV]
Cb-out level [dB]
1
0.5
0
-0.5
-1
-1.5
5
0
-5
-10
-15
-2
-20
-2.5
0
3
6
9
12
0
15
3
6
9
12
15
BUS data
BUS data
INPUT : 4.43PAL 75% color bar (CVBS1-IN)
Cb/Cr offset2 characteristic
TINT characteristic
40
15
30
10
Cb-out offset [mV]
Phase shift [deg]
20
10
0
-10
-20
5
0
-5
-10
-15
-30
-20
-40
0
0
10
20
30
BUS data
40
50
60
3
6
9
12
15
BUS data
INPUT : 3.58NTSC rainbow color bar (CVBS1-IN)
22
2005-08-18
TB1274BFG
ACC characteristics
TOF f0 characteristics
5
5
0
-5
Gain [MHz]
-10
-15
NTSC:Killer ON
NTSC:Killer OFF
PAL:Killer ON
PAL:Killer OFF
-20
-25
-5
-10
-400kHz
0kHz
+400kHz
OFF
-15
-20
-30
-25
-50
-40
-30
-20
-10
Burst level [dB]
0
10
1.5
INPUT : 75% color bar
BUS : C-out level=12, Sub-color=0,
BPF=f0, Q=1.5
3.5
0
0
-5
-5
Gain [dB]
Gain [dB]
5
-10
-400kHz
0kHz
+400kHz
OFF
-20
7.5
TOF Q characteristics
5
-15
5.5
Frequency [MHz]
BUS : Q=1.5
BPF f0 characteristics
-10
1.0
1.5
2.0
2.5
-15
-20
-25
-25
0.5
2.5
4.5
Frequency [MHz]
1.5
6.5
BUS : Q=1.5
3.5
5.5
Frequency [MHz]
7.5
BUS : BPF=f0
BFP Q characteristics
Bell filter characteristics
5
20
0
10
-5
0
Gain [dB]
Gain [dB]
Cb-out level [dB]
0
-10
1.0
1.5
2.0
2.5
-15
-20
-10
NORMAL
BOOST1
BOOST2
HPF
-20
-30
-25
-40
0.5
2.5
4.5
Frequency [MHz]
1
6.5
2
3
4
5
6
7
Frequency [MHz]
8
9
10
BUS : BFP=f0
23
2005-08-18
TB1274BFG
C-trap characteristics
10
0
Gain [dB]
-10
-20
NTSC
SECAM
PAL
-30
-40
-50
S-D trap
-60
2
3
4
Frequency [MHz]
5
6
Y-out level characteristic
C-out level characteristic
1.4
1.8
1.2
1.4
Cb-out level [Vp-p]
Y-out level [Vp-p]
1.6
1.2
1
0.8
0.6
0.4
0.2
1
0.8
0.6
0.4
0.2
0
0
10
20
30
BUS data
40
50
60
0
0
INPUT : RAMP 1.0Vp-p with sync(Y1-IN)
10
30
BUS data
40
50
60
INPUT : 4.43PAL 75% color bar (Cb2-IN)
Cb/Cr-LPF characteristic
Y-LPF characteristic
5
5
0
0
-5
-5
Gain [dB]
Gain [dB]
20
OFF
ON
-10
-15
-10
OFF
ON
-15
-20
-20
-25
-30
-25
0
5
10
Frequency [MHz]
0
15
INPUT : Y1-IN
1
2
3
4
5
Frequency [MHz]
6
7
INPUT : Cb1-IN
24
2005-08-18
TB1274BFG
MAXIMUM RATINGS (Ta＝25℃)
SYMBOL
RATING
UNIT
Supply voltage
VCC/DDmax
5.5
Signal voltage at each input pin
einmax
5
Power consumption
PD (Note1)
1644
Power consumption reduction ratio
13.16
1/θja
Operating temperature
Topr
-20～65
Storage temperature
Tstg
-55～150
(Note1) Put on the circuit board. Refer to the figure below.
V
Vp-p
mW
mW/℃
℃
℃
Power consumption PD (mW)
ITEM
1644
13.16mW/℃
1118
0
0
25
65
150
Ambient temperature Ta (℃)
Fig. Power consumption reduction against ambient temperature.
(Note2)CAUTION
1. Since this device is susceptible to surge, handle with care. Especially, pin 39 is most weak to surge.
2. Confirm that pins connection is correct. Don’t connect plus pins and minus pins to be opposite polarity.
Refer to Handling Guide to handle ICs properly.
3. This device is not proof enough against a strong E-M field by CRT which may cause function errors and / or
poor characteristics. Keeping the distance from CRT to the device longer than 20cm, or if cannot, placing
shield metal over the device, is recommended in an application.
4. APC characteristics is sensitive to external conditions, please care floating capacitor by patterning and
stray capacitor to X’tal.
4.4350
4.4330
4.4325
C1
38
4.4320
4.4335
38
4.4330
4.4325
4.4320
C2
4.4335
4.4340
10pF
4.4340
C2=0pF
C2=0.5pF
C2=1pF
4.4345
16.2MHz
X'tal
4.4345
Oscillation frequency [MHz]
C1=9pF
C1=10pF
C1=11pF
16.2MHz
X'tal
Occillation frequency [MHz]
4.4350
4.4315
4.4315
2.6
2.8
3
3.2 3.4 3.6 3.8
APC terminal voltage [V]
2.6
4
2.8
3
3.2 3.4 3.6 3.8
APC terminal voltage [V]
4
Fig. APC characteristics according to stray capacitor
25
2005-08-18
TB1274BFG
SUPPLY VOLTAGE
ITEM
DESCRIPTION
Supply voltage
Pin 6, 12, 32
MIN
TYP
MAX
UNIT
4.75
5.0
5.25
V
ELECTRICAL CHARACTERISTICS
(YC-VCC/SYNC-VCC/D-VDD=5V and Ta=25℃, unless otherwise specified)
CURRENT CONSUMPTION
PIN
PIN NAME
SYMBOL
MIN
TYP
MAX
UNIT
No.
6
D VDD
IDD
4
7
15
mA
12
SYNC VCC
ICC1
9
13.5
20
32
Y/C VCC
ICC2
75
100
130
AC CHARACTERISTICS
VIDEO SWITCH SECTION
ITEM
SYMBOL
Maximum video input range
CVBS-OUT amplitude gain
Frequency bandwidth
Crosstalk between each input
Y-OUT maximum output range
Cb-OUT maximum output range
Cr-OUT maximum output range
Vdrvi
Gcv
Gfv1
CTvsw
Vdryo
Vdrcbo
Vdrcro
TEST
CONDITION
(NOTE V1)
(NOTE V2)
(NOTE V3)
(NOTE V4)
MIN
TYP
MAX
UNIT
1.4
－
－
－
－
－
－
－
6.0
12
-55
2.2
2.2
2.2
－
－
－
－
－
－
－
Vp-p
dB
MHz
dB
MIN
TYP
MAX
UNIT
25
25
25
25
－
-5
36
36
36
36
60
－
－
－
－
－
－
5
(NOTE Y2)
-5
－
5
(NOTE Y3)
－
-5
-5
180
－
－
200
5
5
220
(NOTE V5)
Vp-p
LUMINANCE SECTION
ITEM
Chroma trap attenuation
Y S/N ratio
Cb/Cr offset level 1
Cb/Cr offset level 2
Black set-up
SYMBOL
3.58MHz
4.43MHz
SECAM
S double
Gtr3
Gtr4
GtrS
GtrSD
Ysn
MAIN Offs1MAIN
Offs1YCbC
YCbCr1
r1
RGB1 Offs1RGB1
Offs2
BSETUP
26
TEST
CONDITION
(NOTE Y1)
Trap off
dB
mV
mV
2005-08-18
TB1274BFG
CHROMA SECTION
ITEM
SYMBOL
TEST
CONDITION
3N,CNT
(NOTE C1)
MIN
TYP
MAX
UNIT
Tθ3NCT
TINT center
-10
0
10
deg
－
APC pull-in range (4.43MHz PAL)
APCp
-400
400
Hz
3N,NORMAL
－
－
KilNNoff
-42.5
ON→OFF
3N,LOW,
－
－
KilNLoff
-38
ON→OFF
(NOTE C2)
Killer operation input level
dB
4P,NORMAL,
－
－
KilPNoff
-45
ON→OFF
4P,LOW,
－
－
KilPLoff
-40.5
ON→OFF
Demodulated Cb and Cr output level
ldNTSC
Cr(x)/Cr(PAL)
-1.5
0
1.5
dB
Difference (PAL 75% color ber)
Cb(x)/Cb(PAL)
ldSECAM
-1.5
0
1.5
dB
－
V3Nbr
PAL : Cr/Cb
-1
1
Demodulation relative amplitude (Cb/Cr)
dB
－
V4Nbr
NTSC : Cr/Cb
-1
1
－
V4Pbr
SECAM : Cr/Cb
-1
1
－
ldYCbCr1
-2
2
－
ldRGB1
-2
2
Cr(x)/Cr(PAL)、
Cb and Cr output level difference
dB
(PAL 75% color ber)
Cb
/Cb
(x)
(PAL)
－
ldYCbCr2
-2
2
－
ldRGB2
-2
2
－
－
Demodulation output residual carrier
ResiCarr
(NOTE C3)
20
mVp-p
Demodulation output residual higher
－
－
ResiHarm
(NOTE C4)
40
mVp-p
harmonic
3.58N
3fr
3578700 3579640 3580000
fsc free-run frequency
(NOTE C5)
Hz
4.43P
4fr
4432600 4433700 4434100
SECAM SECTION
ITEM
SECAM black level adjustment
SYMBOL
Cb,CNT
Cr,CNT
Linearity
Transient characteristic
Killer operation input level
VID OFF
1H DL gain ratio between direct and delay
SBCbCT
SBCrCT
LinCb
LinCr
trCb
trCr
eSK
eSC
gDL
27
TEST
CONDITION
－
(NOTE S1)
(NOTE S2)
(NOTE S3)
－
MIN
TYP
MAX
-9
-9
－
－
－
－
－
－
－
－
－
100
100
0.8
1.2
-42
-39
－
9
9
－
－
－
－
－
－
5
UNIT
－
%
μs
dB
%
2005-08-18
TB1274BFG
SYNCHRONIZING SECTION
ITEM
SYMBOL
HS output start voltage
HS output frequency
H AFC pull-in range
H AFC hold range
50Hz
60Hz
50Hz
60Hz
50Hz
60Hz
VSHVCO
fHD50
fHD60
AFCp50
AFCp60
AFCh50
AFCh60
28
TEST
CONDITION
Vcc voltage
－
－
－
MIN
TYP
MAX
UNIT
－
15.4
15.4
14.625
14.734
14.625
14.734
3.6
15.625
15.734
15.625
15.734
15.625
15.734
－
15.9
15.9
16.625
16.734
16.625
16.734
V
kHz
kHz
kHz
2005-08-18
TB1274BFG
TEST CONDITION
NOTE
( Unless otherwise specified, YC-VCC/SYNC-VCC/D-VDD=5V and Ta=25±3℃ )
ITEM
VIDEO SWITCH SECTION
V1
Maximum video input range
MEASURING METHOD
COMMON TEST CONDITION
① Unless otherwise specified,- Y/C VCC, Sync-VCC and Digital VDD=5V, Ta=25±3℃.
② Set the BUS data preset, unless otherwise specified.
③ Unless otherwise specified, SW33/34/35/39/41=A, ADD SW=B, Y1 SW=A, SYNC SW=A.
COMMON TEST CONDITION FOR LUMINANCE SECTION
① Set the BUS data as Sharpness f0 is.
① Set the BUS data as CVBS1 input is selected.
② Minimize Y-OUT LEVEL via I2C BUS.
Input
③ Input ramp-signal to CVBS1/Y1-IN(pin 1).
④ Measure input range on the right figure at pin21(Y-OUT).
Output
V2
CVBS-OUT amplitude gain
V3
Frequency bandwidth
V4
Crosstalk between each input
V5
Y-OUT maximum output range
Cb-OUT maximum output range
Cr-OUT maximum output range
①
②
③
①
②
③
①
②
③
④
⑤
⑥
⑦
①
②
③
④
2.0Vp-p
Input
range
Set the BUS data as CVBS1 input is selected.
Input video signal (1.0Vp-p) to CVBS1/Y1-IN(pin 1).
Calculate the gain between input signal’s amplitude and amplitude of CVBS-OUT(pin 3).
Set the BUS data as CVBS1 input is selected.
Input sweep-signal to pin 1(CVBS1/Y1-IN).
Measure the frequency where the ratio between the amplitude of pin 3(CVBS-OUT) and that of pin
1(CVBS1/Y1-IN) is -3dB by network analyzer .
Input Signal 1(f0=4MHz, V0=0.7V, VS=0V) to pin 1(CVBS1/Y1-IN).
Set the BUS data as CVBS1 input is selected.
Short other input pins with AC coupling. Measure the amplitude of pin 3(CVBS-OUT). (V1)
Set the BUS data as CVBS2 input is selected via I2C BUS.
Measure the amplitude of pin 3(CVBS-OUT). (V2)
Crosstalk level from pin 1 to pin 3 is calculated by the following equation.
CT= 20log(V2 / V1)
Calculate leak levels on other cases as well.
Set the BUS data as CVBS1 input is selected.
Maximize Y-OUT LEVEL via I2C BUS.
Measure Y output range at Y-OUT(pin 21) in the same as NOTE V1.
Measure Cb/Cr output range as well.
29
2005-08-18
TB1274BFG
NOTE
ITEM
LUMINANCE SECTION
Y1
Chroma trap attenuation
Y2
Cb, Cr offset level 1
Y3
Cb, Cr offset level 2
MEASURING METHOD
COMMON TEST CONDITION FOR LUMINANCE SECTION
① Set the BUS data as Y1/C1 input is selected.
① Set the BUS data as C TRAP is ON.
② Input signal 1(f0=3.58MHz(NTSC), V0=0.5V, VS=0V) to pin 1(CVBS1/Y1-IN).
③ Measure the amplitude at pin 21(Y-OUT) with the chroma trap being turned on(VTon) and off(VToff).
Calculate the attenuation value as following equation.
Gtr3=20log(VToff / VTon)
④ Calculate the following value in the same way as② to ③.
Gtr4 : f0=4.43MHz(PAL)
GtrS : f0=4.43MHz(SECAM)
GtrSD : f0=5.0MHz(SECAM, S-D TRAP = ON)
① Input PAL Black Burst signal to pin 1(CVBS1/Y1-IN).
② Monitor Cb or Cr out (pin 22 or 23), and measure voltage between blanking period and picture period as
Offs1MAIN.
③ Set the BUS data as RGB SELECT is YcbCr1 (or RGB1), and measure Offs1YcbCr1(or OffsRGB1) in the
same way as ②.
① Set YS1(pin 24)=2V and Cb2, Cr2-in : no-signal input.
② Monitor Cb or Cr-OUT(pin 22 or 23), and measure voltage between blanking period and picture period as
Offs2.
30
2005-08-18
TB1274BFG
NOTE
ITEM
MEASURING METHOD
CHROMA SECTION
C1
C2
C3
C4
C5
COMMON TEST CONDITION FOR CHROMA SECTION
① Set the BUS data as Y1/C1 input is selected via I2C BUS.
② Set the BUS data as BPF f0 is through, Color system is Europe mode and P/N GW is 2.0μs.
APC pull-in/hold range
① Input color signal(4.43PAL, 100mVp-p) to pin 48(C1-IN).
② Increase its frequency until Cb-OUT at pin 22 is discolored(upper hold range), and decrease its frequency
until Cb-OUT is colored(upper pull-in range).
③ In the same way, decrease its frequency until Cb-OUT is discolored(lower hold range), and increase its
frequency until Cb-OUT is colored(lower pull-in range).
④ Calculate the differences between the frequencies and center frequency(4.43MHz).
Killer operation input level
① Set the BUS data as P/N ID is Normal.
② Input color signal(3.58NTSC) to pin 48(C1-IN).
③ While attenuating the burst signal, measure the burst amplitude when Cb-OUT(pin 22) is discolored.
④ Set P/N ID Low, and measure killer level as well.
⑤ Input 4.43PAL color signal to pin 48, and measure items in the same way as①to④.
Demodulation output residual ① Input 3.58NTSC or 4.43NTSC rainbow color bar signal(burst=100mVp-p) to pin 48(C1-IN).
carrier
② Measure sub-carrier leak’s amplitude in Cb signal of pin 22 and Cr signal of pin 23 respectively.
Demodulation output residual ① Input 3.58NTSC or 4.43NTSC rainbow color bar signal(burst=100mVp-p) to pin 48(C1-IN).
higher harmonic
② Measure higher harmonic’s amplitude (2fc=7.16MHz or 8.86MHz) in Cb signal of pin 22 and Cr signal of
pin 23 respectively.
fsc free-run frequency
① Input nothing into pin 48(C1-IN).
② Change setting of Color system according to respective frequency modes.
③ Measure frequency of fsc signal of pin 46 respectively.
31
2005-08-18
TB1274BFG
NOTE
ITEM
SECAM SECTION
S1
Linearity
S2
Transient characteristic
MEASURING METHOD
COMMON TEST CONDITION FOR SECAM SECTION
① Set the BUS data as Y1/C1 input is selected.
② Input SECAM 75% color bar(R-Y ID=214mVp-p) to pin 48(C1-IN), unless otherwise specified.
① Measure the amplitude from black bar levels in output of pin 22 and 23.
② Calculate items by the following equation.
LinCb= V[yellow] / V[blue]×100 (%)
LinCr= V[cyan] / V[red]×100 (%)
① Measure the period shown in the following figure at pin 22(Cb-OUT) and Green
tTRCb, tTRCr
pin 23(Cr-OUT).
90%
10%
S3
Killer operation input level
Magenta
① Set the BUS data as S-ID is Normal and S V-ID SW is OFF.
② While attenuating the ID signal, measure its R-Y ID amplitude when the killer is ON/OFF as eSK and
eSC.
32
2005-08-18
TB1274BFG
TEST SIGNAL
Color bar
Y signal component
Burst
Black Burst
Burst
Signal 9
Signal 8
Signal 7
Signal 6
Signal 5
Signal 4
Signal 3
Signal 2
Signal 1
Burst
Rainbow color bar
180゜150゜
120゜90゜60゜30゜0゜-30゜
-60゜
-90゜
Sweep signal
Sweep signal
Amplitude V 0
V sync
Signal 1
Sinusoidal wave
Frequency f 0
Amplitude V 0
Set-up V S
33
2005-08-18
2005-08-18
5V
CVBS1/Y1-in
C1-in
CVBS2/Y2-in
C2-in
75Ω
75Ω
10μF
+
+
10μF
+
10μF
10kΩ
75Ω
+
16kΩ
10μF
6.8kΩ
10kΩ
6.8kΩ
75Ω
+
10kΩ
10μF
10kΩ
1.8kΩ
16kΩ
1.5kΩ
10kΩ
+
16kΩ
1.5kΩ
Comb Y-in
0.01μF
+
+
10μF
48 C1-in
1
47 AFC-fil
Comb
SYS
46 Fsc-out
45
A
B
2
44 CVBS2/Y2-in
43 C2-in
TP44
42 ADDRESS
Comb C-in
3
R2-in
YS2/YM
(RGB2-in)
fil
X'tal
16.2MHz
10pF
YS2/YM
TP35
0.1μF
10μF
4
VS
75Ω
SW35
TP34
R2-in
B
VS
0.1μF
0.1μF TP5
5
Comb Y-in
75Ω
SW34
A
10kΩ
A
+
35
41 CVBS3/Y3-in
TP43
TP48
TP47
0.022μF
2.2μF 3.9kΩ
Fsc-out
10kΩ
B
8CH A
88H
SW41
8AH
B
A
34
G2-in
36
40 APC-fil
33
B2-in
37
39 C3-in
TP41
TP40
Comb SYS
0.1μF
0.01μF
Add SW
0.1μF
+
B
A
SW39
0.01μF
0.47μ 27kΩ
0.01μF
31
32
Y/C-VCC
G2-in
B
TP33
+
0.1μF
7
6
75Ω
SW33
B2-in
A
0.01μF
B
47μF
10
9
0.1μF
75Ω
TP31
Cb2-in
30
8
TB1274AF
Digital-VDD
0.01μF
Digital-GND
B
Comb C-in
/ Forced-S
HS
A
47μF
1.8kΩ
0.01μF
Foced-S SW TP7
HS
SCP
29
Cr2-in
Y2-in
0.1μF
75Ω
TP30
7.5kΩ
10kΩ
1.8kΩ
Y2-in
38
CVBS-out
TP39
Sync-in
10μF
6.8kΩ
TP2
CVBS3/Y3-in
75Ω
+
1.8kΩ
16kΩ
CVBS1/Y1-in
0.1μF
0.1μF
Sync SW
CVBS-out
C3-in
75Ω
0.01μF
47μF
1.5kΩ
75Ω
6.8kΩ
TP1
Sync-in
1.5kΩ
75Ω
10kΩ
34
SCP
+
Cb2-in
0.1μF
75Ω
Cr2-in
TP29
TP11
11
27
28
Yvi-out
R1-in
Y/C-GND
+
13
Sync-VCC
12
47μF
SCL
0.1μF
75Ω
TP27
R1-in
0.1μF
G1-in
TP17
0.1μF
TP18
0.1μF
Cr1-in 17
Cb1-in 18
14
0.1μF
75Ω
B1-in
TP25
75Ω
75Ω
75Ω
4.7μF
TP19
0.1μF
Y1-in 19
CLP-fil 20
Y-out 21
Cr-out 23
Sync-GND 16
YS3
(RGB1-in) 15
75Ω
TP26
B1-in
25
Cb-out 22
YS1 24
(YCbCr2-in)
G1-in
SDA
26
0.01μF
100Ω
SCL
100Ω
SDA
+
YS3
Cr1-in
B
A
Cb1-in
Y1-SW
Y-out
Cb-out
Cr-out
YS1
Y1-in
TEST CIRCUIT
TB1274BFG
2005-08-18
5V
CVBS1/Y1-in
C1-in
CVBS2/Y2-in
C2-in
75Ω
75Ω
10μF
+
+
10μF
+
10μF
10kΩ
75Ω
+
16kΩ
10μF
6.8kΩ
10kΩ
6.8kΩ
75Ω
+
10kΩ
10μF
10kΩ
16kΩ
1.5kΩ
10kΩ
+
16kΩ
1.8kΩ
10μF
6.8kΩ
1.5kΩ
10kΩ
1.8kΩ
Comb Y-in
0.01μF
+
0.022μF
B
A
2.2μF 3.9kΩ
Fsc-out
10kΩ
88H
8CH
8AH
27kΩ
Comb SYS
0.1μF
0.01μF
Add SW
0.1μF
+
0.01μF
0.47μF
0.01μF
+
10μF
48 C1-in
1
47 AFC-fil
Comb
SYS
46 Fsc-out
45
2
Comb C-in
4
3
+
10μF
32
44 CVBS2/Y2-in
31
Y2-in
Y/C-VCC
33
43 C2-in
30
Cb2-in
B2-in
34
42 ADDRESS
29
Cr2-in
G2-in
35
41 CVBS3/Y3-in
28
Y/C-GND
R2-in
36
40 APC-fil
27
R1-in
YS2/YM
(RGB2-in)
37
39 C3-in
25
26
G1-in
fil
38
CVBS1/
Y1-in
Sync-in
CVBS-out
CVBS3/Y3-in
75Ω
+
1.8kΩ
16kΩ
0.1μF
0.1μF
CVBS-out
VS
(6.8kΩ)
C3-in
75Ω
0.01μF
47μF
1.5kΩ
75Ω
6.8kΩ
1.5kΩ
75Ω
35
10kΩ
B1-in
X'tal
16.2MHz
10pF
YS2/YM
0.1μF
75Ω
R2-in
VS
10kΩ
0.1μF
5
Comb Y-in
0.1μF
75Ω
G2-in
+
1.8kΩ
7
8
TB1274AF
Digital-VDD
6
47μF
Comb C-in
/ Forced-S
0.01μF
0.01μF
(2.7kΩ)
Digital-GND
SCP
10
HS
9
HS
7.5kΩ
0.1μF
B2-in
47μF
75Ω
Y2-in
0.1μF
75Ω
Cb2-in
0.1μF
75Ω
SCP
11
Yvi-out
75Ω
0.01μF
0.1μF
+
Cr2-in
+
SCL
13
Sync-VCC
14
YS3
(RGB1-in) 15
Sync-GND 16
Cr1-in 17
Cb1-in 18
Y1-in 19
CLP-fil 20
Y-out 21
Cb-out 22
Cr-out 23
SDA
YS1 24
(YCbCr2-in)
100Ω
12
47μF
0.01μF
SCL
100Ω
SDA
0.1μF
75Ω
R1-in
0.1μF
75Ω
G1-in
0.1μF
75Ω
B1-in
0.1μF
0.1μF
0.1μF
75Ω
75Ω
75Ω
4.7μF
+
YS3
Cr1-in
Cb1-in
Y1-in
Y-out
Cb-out
Cr-out
YS1
APPLICATION CIRCUIT
TB1274BFG
TB1274BFG
OUTLINE DRAWING
Unit : mm
QFP48--P-1014-0.80
Weight : 0.83 g (Typ.)
36
2005-08-18
TB1274BFG
37
2005-08-18