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Sony Semiconductor Electronic Components Datasheet

CXD1176Q Datasheet

8-bit 20MSPS Video A/D Converter with Clamp Function

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CXD1176Q pdf
CXD1176Q
8-bit 20MSPS Video A/D Converter with Clamp Function
Description
The CXD1176Q is an 8-bit CMOS A/D converter
for video use that features a sync clamp function. The
adoption of a 2 step-parallel method realizes low
power consumption and a maximum conversion
speed of 20MSPS.
32 pin QFP (Plastic)
Features
Resolution power: 8-bit ± 1/2LSB (DL)
Maximum sampling frequency: 20MSPS
Low power consumption: 60mW (at 20MSPS typ.)
(Reference current excluded)
Built-in sync type clamp function
Built-in monostable multivibrator for clamp pulse
generation
Built-in sync pulse polarity selection function
Clamp pulse direct input possible
Built-in clamp ON/OFF function
Built-in reference voltage self-bias circuit
Input CMOS compatible
3-state TTL compatible output
Single 5 V power supply
Low input capacity: 11 pF
Reference impedance: 330 (typ.)
Applications
TV and VCR digital systems and a wide range of
applications where high-speed A/D conversion is
required.
Structure
Silicon gate CMOS IC
Absolute Maximum Ratings (Ta=25 °C)
• Supply voltage VDD
7V
• Reference voltage
VRT, VRB VDD + 0.5 to VSS – 0.5 V
• Input voltage VIN
VDD + 0.5 to VSS – 0.5 V
(Analog)
• Input voltage VI
VDD + 0.5 to VSS – 0.5 V
(Digital)
• Output voltage VO
VDD + 0.5 to VSS – 0.5 V
(Digital)
• Storage temperature
Tstg –55 to +150 °C
Recommended Operating Conditions
• Supply voltage AVDD, AVSS 4.75 to 5.25
V
DVDD, DVSS
| DVSS – AVSS | 0 to 100
mV
• Reference input voltage
VRB 0 to V
VRT
to 2.7
V
• Analog input VIN
1.8Vp-p above
• Clock pulse width
Tpw1, Tpw0 22.5 ns (min) to 1.1 µs (max)
• Operating ambient temperature
Topr
–40 to +85
°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.
—1—
E90167J04-TE


Sony Semiconductor Electronic Components Datasheet

CXD1176Q Datasheet

8-bit 20MSPS Video A/D Converter with Clamp Function

No Preview Available !

CXD1176Q pdf
Block Diagram and Pin Configuration
CXD1176Q
OE 30
DVss 31
D0 (LSB) 1
D1 2
D2 3
D3 4
D4 5
D5 6
D6 7
D7 (MSB) 8
DVDD 10
DVDD 11
CLK 12
DVss
28
Reference supply
Lower
data
latch
Upper
data
latch
Lower encoder
(4 BIT)
Lower sampling
comparator (4 BIT)
Lower encoder
(4 BIT)
Lower sampling
comparator (4 BIT)
Upper encoder
(4 BIT)
Upper sampling
comparator (4 BIT)
Clock generator
NC 9
NC 32
29 27
26
CLE CCP VREF
M·M
25 VRBS
24 VRB
23 AVss
22 AVss
21 VIN
20 AVDD
19 AVDD
18 VRT
17 VRTS
16 AVDD
15 PW
14 Sync
13 SEL
—2—


Part Number CXD1176Q
Description 8-bit 20MSPS Video A/D Converter with Clamp Function
Maker Sony Corporation
Total Page 25 Pages
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