TA1383AFG
TOSHIBA Bipolar Linear Integrated Circuit Silicon Monolithic
TA1383AFG
NTSC Chroma Decoder, Multi-Point Scan Sync Processor,
H/V Frequency Counter IC for Color TV
TA1383AFG integrates an NTSC chroma decoder, multi-point
scan sync processor (equivalent to pin D4), and H/V frequency
counter in a 30-pin flat package. The IC is ideal for double scan
TVs.
The baseband signal processing block incorporates sub
adjustment circuits and a RGB/Y color difference matrix. The
sync processor block supports 525I/P, 750P, and 1125I.
TA1383AFG incorporates the I
2
C bus. The device can control
various functions via the bus line.
Weight: 0.63 g (typ.)
Features
Luminance block
•
Chroma trap
•
Y delay line
Chroma block
•
NTSC decoder
•
TOF
Baseband block
•
Sub contrast
•
•
•
•
•
•
•
•
Sub tint
Sub color
Y delay line
Offset adjustment
ADC pre-filter (LPF)
+6dB amp (ON/OFF)
YCbCr/YPbPr/RGB input supported
YCbCr/YPbPr output switchable
Sync block
•
High-performance sync separator (at NTSC (525I) )
•
•
•
•
•
•
•
Horizontal sync (15.734 k, 31.5 k, 33.75 k, 45 kHz)
Vertical sync playback function (525I/P, 750P, 1125I)
2- and 3-level sync separator circuit
HD/VD input (positive and negative polarities)
HD/VD output (positive and negative polarities switchable)
Horizontal/vertical frequency counting function
Copy guard
1
2005-09-05
TA1383AFG
Block Diagram
Y OUT
Cb/Pb OUT
Cr/Pr OUT
3.58 X’tal
D-SYNC1/Y3/G IN
Cb/Pb/B IN
Cr/Pr/R IN
GND2
fsc OUT
V
CC2
(5 V)
APC FILTER
C2 IN
DIGITAL GND
30
29
28
27
26
25
24
23
22
21
20
19
18
17
HD OUT
16
CLAMP
TEST
U
DEMO
V
SUB-CONT
/AMP
HD
PHASE
Y
Y-DL1
YCbCr/
YPbPr
MATRIX
LPF
OFFSET
OFFSET
SUB-COLOR
/AMP
TOF
ACC
HD OUT
SW
TEST
fsc
CW
APC
3.58
VCXO
C
SW
CLAMP
CLAMP
SW
YUV MATRIX
V
U
LPF
SUB TINT
INTEG
SW
H/V-FREQ
COUNTER
HD (RGB MODE)
TEST
Y-DL2
525p
750p
1125i
SYNC
SW
V SW
NOISE
DET
SYNC
SEPA
PULSE
REMAKE
SYNC
OUT
3
VD IN
SYNC OUT
Y2/SYNC2 IN
D-SYNC2 IN
(for freq. det.)
4
5
6
7
HD IN
SYNC TIP
CLAMP
SYNC TIP
CLAMP
PULSE
REMAKE
MONITOR
OUT
8
MONITOR OUT
9
AFC FILTER
525i
NTSC
SYNC SEPA
V-C/D
H/
V-SEPA
H SW
C
TRAP
VD OUT
SW
525i: 8fH
OTHERS:2fH
H-RAMP
Y SW
H-AFC
H-C/D
I C BUS
VCO
2
SYNC TIP
CLAMP
1
2
10
HVCO
11
GND1
12
ADDRESS
13
SDA
14
SCL
15
VD OUT
V
CC1
(9 V)
Y1/SYNC1 IN
2
C1 IN
2005-09-05
TA1383AFG
Pins
(unless otherwise specified, V
CC1
=
9 V, V
CC2
=
5 V, Ta
=
25°C)
Pin
No.
1
Symbol
Function
V
CC
for sync separation block,
outputs, and interface. Connects 9 V
(typ.).
Interface
⎯
I/O Signal
⎯
1 V
p-p
(with Sync)
Y signal input pin.
Inputs NTSC (525I) signal via clamp
capacitor.
2
4
Y1/SYNC1 IN
Y2/SYNC2 IN
Sync signal is separated from Y signal
input to this pin.
Can also be used for sync-only input
pins.
When not used, leave open.
2
4
1 kΩ
30 kΩ
1
Sync-Tip: 2.0 V
9 pF
V
CC1
(9 V)
1 kΩ
1 kΩ
1 kΩ
1 kΩ
2V
5
µA
11
1
3
SYNC OUT
Outputs sync-separated C-SYNC.
Open collector output.
3
100
Ω
High/Low
11
1
25
µA
Th: 0.7 V
Inputs vertical sync VD signal.
5
VD IN
Inputs positive- and negative-polarity
signals.
When not used, leave open.
1 kΩ
5
45 kΩ
1.5 V
or
Th: 0.7 V
11
1 V
p-p
(with Sync)
Sync-Tip: 2.0 V
1
1 kΩ
Inputs Y signal for identifying
frequency.
6
D-SYNC2 IN
(for freq. det.)
Inputs Y signals such as 525IP, 720P,
and 1125I via clamp capacitor.
When not used, leave open.
6
1 kΩ
or
1 kΩ
11
1
Th: 0.7 V
Inputs horizontal sync HD signal.
7
HD IN
Inputs positive- and negative-polarity
signals.
When not used, leave open.
500
Ω
7
50 kΩ
or
Th: 0.7 V
11
3
2005-09-05
TA1383AFG
Pin
No.
Symbol
Function
Interface
I/O Signal
1
500
Ω
Monitor output pin.
8
MONITOR OUT
Emitter follower output.
Selects output signal according to bus
setting.
500
Ω
8
5 kΩ
⎯
11
1
6.3 V
36 kΩ
9
AFC FILTER
Connects horizontal AFC filter.
Voltage of this pin determines
horizontal output frequency.
300
Ω
9
⎯
11
1
Use Murata CSBLA503KECZF30 or
CSBFB503KJCZF60.
1 kΩ
10
10 kΩ
11
11
GND1
GND pin for 9-V block.
⎯
1
7.5 V
1 kΩ
12
1.5 V
4.5 V
30 kΩ 60 kΩ 60 kΩ 15 kΩ
Switches slave addresses. Slave
addresses are set according to
voltage of this pin.
12
ADDRESS
V
CC
(9 V): DE
H
/DF
H
6 V: DC
H
/DD
H
3 V: DA
H
/DB
H
GND: D8
H
/D9
H
V
CC
(9 V)
7.5 V
4.5 V
1.5 V
GND
⎯
1 kΩ
10
HVCO
2 kΩ
Connects ceramic oscillator for
horizontal oscillation.
4 kΩ
⎯
V
CC
: DE
H
/DF
H
6 V: DC
H
/DD
H
3 V: DA
H
/DB
H
GND: D8
H
/D9
H
11
1
ACK
11
1
2.25 V
14
SCL
I C bus SCL pin.
2
5 kΩ
14
SCL
2.25 V
13
SDA
I C bus SDA pin.
2
50
Ω
13
5 kΩ
SDA
⎯
⎯
11
4
2005-09-05
TA1383AFG
Pin
No.
Symbol
Function
Interface
I/O Signal
1
500
Ω
Vertical sync VD output pin.
50 kΩ 50 kΩ
15
VD OUT
Emitter follower output.
Sets polarity of output signal
according to bus setting.
15
or
5 kΩ
11
25
16
16
19
C1 IN
C2 IN
Inputs chroma signal via clamp
capacitor.
When not used, leave open.
1 kΩ
19
18 kΩ
18 kΩ
1 kΩ
Burst: 300 mV
p-p
27
1
500
Ω
Horizontal sync HD output pin.
50 kΩ 50 kΩ
17
HD OUT
Emitter follower output.
Sets polarity of output signal
according to bus setting.
17
or
5 kΩ
11
⎯
⎯
18
DIGITAL GND
GND pin for digital block.
1.8 kΩ
25
APC
Del
1 kΩ
20
APC FILTER
2.4 V
3 kΩ
Connects APC filter for chroma
demodulation.
20
⎯
2 kΩ
2.4 V
27
25
21
3.58 MHz X’tal
Connects recommended 3.58-MHz
oscillator for chroma demodulation.
2.5 kΩ
21
500
Ω
⎯
27
5
2005-09-05
