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PDF M52393FP Data sheet ( Hoja de datos )
| Número de pieza | M52393FP | |
| Descripción | EDTV2 IDENTIFICATION SIGNAL DETECTOR | |
| Fabricantes | Mitsubishi | |
| Logotipo |  |
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MITSUBISHI ICs (AV COMMON)
M52393P/FP
EDTV2 IDENTIFICATION SIGNAL DETECTOR
DESCRIPTION
The M52393 are integrated-circuits of a semiconductor, developed
especially for EDTV2 identification signal detection.
In contrast to such ICs, few products on the IC market had the
simple function of detecting identification signals. For that purpose,
many manufacturers had to combine discrete components (non-
ICs) with gate arrays. There was a great demand for ICs that
enabled cost reduction.
In order to satisfy demand, we have developed the EDTV2
identification signal processing ICs that include all necessary
capabilities for detection (synchronous signal separation, line
counter, filters, level detection, and bit judgment). The use of such
ICs reduces parts, eliminates the need for complicated adjustment,
and enables easy handling and cost reduction.
FEATURES
• All necessary detection capabilities, such as a synchronous sig-
nal separation circuit, are integrated into a single microchip. The
use of the microchip can simplify application circuits, and elimi-
nate the need for adjustment. (Only two inputs are provided:
video signal input and fsc signal input.)
• Our original method is used for distinguishing EDTV2 identifica-
tion signals from normal video signals.
Therefore the accuracy of identification is improved.
• The detection level is adjustable.
• The microchip operates on a single supply voltage of 5V.
• Two types of packages are provided:
DIP with a lead pitch of 2.54mm (M52393P); and SOP with a
pitch of 1.27mm (M52393FP).
PIN CONFIGURATION (TOP VIEW)
2.04M TRAP 1
COMP1 2
CLAMP1 3
COMP2 4
CLAMP2 5
COMP3 6
LINE 7
CORRELATION SW
GND 8
16 VCC
15 VIDEO IN
14 3.58M TRAP
13 SYNC SEPA FILTER
12 V.SEPA FILTER
11 fSC IN
10 FRAME/FIELD SW
9 DET OUT
Outline 16P4
16P2N-A
APPLICATION
TV and videocassette recorder compatible with EDTV2.
RECOMMENDED OPERATING CONDITION
Supply voltage range........................................................4.7 to 5.3V
Rated supply voltage.....................................................................5V
BLOCK DIAGRAM
VCC VIDEO IN
16 15
3.58M TRAP
14
SYNC SEPA
FILTER
13
V.SEPA FILTER
12
fSC IN
11
FRAME/
FIELD SW
10
DET OUT
9
CLAMP
TRAP (3.58MHz)
14dB AMP
Sync
Sepa.
V Sepa
PULSE GEN.
LED
DRIVER
LPF 1
CLAMP 1
COMP 1
Counter
BPF
(2.1M)
TRAP
(2.1M)
DET 3
CLAMP 2
COMP 3
COMP 2
Bit judge
1
2.04M TRAP
2
COMP1
3
CLAMP1
4
COMP2
5
CLAMP2
6
COMP3
7
LINE
CORRELATION SW
8
GND
1
1 page  
MODE TABLE
Mode
COMP. 1 OFF
COMP. 2 OFF
COMP. 3 OFF
Line correlation SW
(Shown in Fig.1)
ON
OFF
Frame/Field SW
(Shown in Fig.2)
Frame
Field
TRICK MODE
MITSUBISHI ICs (AV COMMON)
M52393P/FP
EDTV2 IDENTIFICATION SIGNAL DETECTOR
Conditions
2
0 to 0.3V
4
0 to 0.3V
6
0 to 0.3V
7
0 to 0.5V
7
2 to 3V
(2.5V at open)
10
0 to 0.5V
10
2 to 3V
(2.5V at open)
14
39µH
47pF
500Ω
ON
Functions
Detector off at Bit 1 to 5, 24
Detector off at Bit 25 to 27
2.04MHz detector off at Bit 25 to 27
In a case an EDTV2 identification signal (or an equivarent
one) is detected a couple of times during three lines of 21
to 23 (line 284 to 286), the output will be Lo (a standard
signal).
On the other hand, the output will be Hi (an EDTV2 sig-
nal) through the ID signal is detected a couple of times
during the three lines.
The detection is performed once a field. The choice
between Odd or Even is difficult. (effective data : 8 fields/
8 frames)
The detection is performed in both fields. (effective data :
8 fields/4 frames )
The output state before the TRICK mode setting is kept
regardless of an input signal.
FUNCATIONAL DESCRIPTION
Input signal
7fsc
Bit 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27
Video in pin15
Bit
Name
H.SYNC
1⋅2
Reference
22H/285H
3
Letter box
4
Parity
NRZ form
5
SQZ
4/7fsc
286mVP-P
(80/140IRE)
24 25⋅26⋅27
0 Sine wave for confirming
fsc in pin11
fsc, 0.3VP-P ±6dB, Sine wave (ansynchronous signals are permitted)
5
5 Page 
TYPICAL CHARACTERISTICS
THERMAL DERATING (MAXIMUM RATING)
MITSUBISHI ICs (AV COMMON)
M52393P/FP
EDTV2 IDENTIFICATION SIGNAL DETECTOR
1400
(980)
700
(490)
0
25 50
75 100 125
AMBIENT TEMPERATURE Ta (°C)
Thermal Derating Characteristic of the IC with mounting on the standard boad.
Values inside of round brackets correspond to FP.
Standard board
Material...................Glass epoxy (Cu film pattern on one side)
Size.........................70mm , 1.6mm thickness
Cu film thickness.....18µm
APPLICATION EXAMPLE 1
VCC=5V
Lo impidance drive Detecting Both a NRZ Part and a Check Signal Part
VIDEO IN
3.58M TRAP
SYNC
47p SEPA. FILTER
V SEPA
FILTER
fSC IN
DET OUT
FRAME/FIELD SW
L:FRAME
1k
47µ 0.01µ
0.1µ
39µ
0.01µ
1800p
0.01µ
(LED)
16 15 14 13 12 11 10
9
CLAMP
TRAP (3.58MHz)
14dB AMP
Sync
Sepa.
V Sepa
PULSE GEN.
LED
DRIVER
LPF 1
CLAMP 1
COMP 1
Counter
BPF
(2.1M)
TRAP
(2.1M)
DET 3
CLAMP 2
COMP 3
COMP 2
Bit judge
1 2 34 5 6 7 8
220µ
27p
TRAP
(2.1M)
0.01µ
0.01µ
0.01µ
0.01µ
0.01µ
COMP1
Lo:COMP1 OFF
CLAMP1
COMP2
Lo:COMP2 OFF
CLAMP2
COMP3
Lo:COMP3 OFF
LINE CORRELATION SW
L: CORRELATION TURNED ON
GND
Units Resistance : Ω
Capacitance : F
11
11 Page | ||
| Páginas | Total 16 Páginas | |
| PDF Descargar | [ Datasheet M52393FP.PDF ] | |
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