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PDF CXA1592 Data sheet ( Hoja de datos )
| Número de pieza | CXA1592 | |
| Descripción | Encoder for CCD Color Camera | |
| Fabricantes | Sony Corporation | |
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CXA1592Q/R
Encoder for CCD Color Camera
Description
The CXA1592Q/R is a bipolar IC developed as an
encoder for CCD color cameras.
Color difference and luminance signals are input
to be output as composite video and Y/C separate
signals.
The CXA1592 is a variant of the CXA1392 in
which the down/up ratio and level of shapness
signal have been changed from 1 : 3 to 1.5 : 1.5.
Features
• Carrier balance adjustment unnecessary
(Carrier leak above 36 dB against burst)
• High S/N
• Low power consumption (140mW)
Applications
CCD camera
Absolute Maximum Ratings (Ta = 25°C)
• Supply voltage
VCC 7 V
• Storage temperature
Tstg –65 to +150 °C
• Allowable power dissipation PD
600 mW
Block Diagram and Pin Configuration
CXA1592Q
48 pin QFP (Plastic)
CXA1592R
48 pin LQFP (Plastic)
Structure
Bipolar silicon monolithic IC
Operating Conditions
• Supply voltage
• Ambient temperature
VCC 4.75 to 5.25 V
Topr –20 to +75 °C
YTBLK 37
NOISESLICE 38
YHCLP 39
YHIN 40
YL-YHCLP 41
YL-YHIN 42
AGND 43
CLP4 44
CLP2 45
BLEVEL 46
B-YIN 47
B-YCLP 48
36 35 34 33 32 31 30 29 28 27 26 25
LEVEL
CONT
LEVEL
CONT
1/2
HAP GAIN
SLICE BLK
YTBLK
LEVEL
CONT
LOGIC REF V
SYNC
C BLK
CLP4
BLK
ADO GC
CLP2 WC
SETUP SYNC
ADO
1.4 TYP
CLP4
×1.6
CLP4
BURST
3/2
CLP2
MOD
BLK
2/3 TYP
ADO GC
24 WCLEVEL
23 SETUPCLP
22 YOUT
21 VOUT
20 CHROMA
19 DGND
18 CIN
17 AVCC
16 COUT
CLP4
BURST
3/2
CLP2
MOD
BLK
ADO CLP4 15 CSY
LOGIC
14 CSAGC
B.GEN
1/4
MODE 13 MODE
GEN
BFG
1 2 3 4 5 6 7 8 9 10 11 12
Sony reserves the right to change products and specifications without prior notice. This information does not convey any license by
any implication or otherwise under any patents or other right. Application circuits shown, if any, are typical examples illustrating the
operation of the devices. Sony cannot assume responsibility for any problems arising out of the use of these circuits.
–1–
E91537A78
1 page  
Pin No.
Symbol Pin voltage
Equivalent circuit
17 AVCC
5V
AVCC
17
CXA1592Q/R
Description
Power supply pin for other
than 1/4 counter block.
18 CIN
2.5V
18
AVCC
Input pin for chroma signal
passed through BPF.
20k Internally biased with a 20kΩ
resistance.
Input at C cut.
AGND
19 DGND
0V
19
DGND
GND pin for 1/4 counter
block.
20 CHROMA
2V
20
21 VOUT
1.8V
21
200
600µA
AVCC
AGND
Signals input from CIN are
amplified and output through
this pin.
Chroma signal output pin
when used for Y/C separation
output.
200
140
600µA
AVCC
AGND
Output pin of composite
video signal.
When not in use, connection
to VCC allows for 900µA of
current saving.
–5–
5 Page 
CXA1592Q/R
Pin No.
Symbol Pin voltage
47 B-Y IN
3V 47
Equivalent circuit
Description
1k
140
140
2k
10µA
AVCC
AGND
B-Y signal input pin.
Clamped internally through
C cut input.
48 B-Y CLP
3.4V
48
1k
140
140
2k
10µA
AVCC
AGND
Connects the capacitor for
B-Y modulator clamp.
Setting the capacitance to
too small a value will enlarge
the carrier leak.
Over 0.1µF is recommended.
– 11 –
11 Page | ||
| Páginas | Total 23 Páginas | |
| PDF Descargar | [ Datasheet CXA1592.PDF ] | |
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