CXA1977R Datasheet, PDF (1/16 Pages) Sony Corporation – 10-bit 20MSPS A/D Converter

10-bit 20MSPS A/D Converter
CXA1977R
Description
The CXA1977R is a 10-bit 20MSPS 2-step parallel
type A/D converter for video signal processing.
This A/D converter operates on +5V power
supplies. The analog signal can be converted to the
digital signal by using this IC in conjunction with the
Sample-and-hold IC.
48 pin LQFP (Plastic)
Features
• Maximum operating speed : 20MSPS (Min.)
• Resolution
: 10-bit
• Low power dissipation : 160mW (Typ.)
• Wide-band analog input : 10MHz
• Low input capacitance : 50pF (Typ.)
• Built-in digital correction
(Compensation within ±16LSB)
• TTL input
• TTL output
• Output code : binary/2'S complement/1'S complement
Function
10-bit 20MSPS 2-step parallel type A/D converter
Structure
Bipolar silicon monolithic IC
Applications
High resolution video signal processing
Block Diagram
N.C. 37
N.C. 38
VINL 39
VINH 40
N.C. 41
AVCC 42
N.C. 43
AGND 44
DVCC2 45
UNDER 46
OVER 47
DGND1 48
36 35 34 33 32 31 30 29 28 27 26 25
MATRIX
H-COMPARATOR
H-ENCODER
OVER/UNDER
OUTPUT BUFFER
FINE OUTPUT
BUFFER
CORRECTION
COARSE OUTPUT
BUFFER
1 2 3 4 5 6 7 8 9 10 11 12
24 PS
23 ENABLE
22 CLK
21 MINV
20 LINV
19 N.C.
18 DVCC3
17 DGND2
16 DGND1
15 DVCC1
14 DGND1
13 N.C.
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.
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E94326-PS