CXD1179Q
8-bit 35MSPS Video A/D Converter with Clamp Function
Description
The CXD1179Q is an 8-bit CMOS A/D converter
for video with synchronizing clamp function. The
adoption of 2 step-parallel method achieves ultra-low
power consumption and a maximum conversion
speed of 35MSPS.
Features
• Resolution: 8-bit ± 1/2LSB (DL)
• Maximum sampling frequency: 35MSPS
• Low power consumption: 80 mW (at 35MSPS typ.)
(reference current excluded)
• Synchronizing clamp function
• Clamp ON/OFF function
• Reference voltage self bias circuit
• Input CMOS compatible
•
•
•
•
3-state TTL compatible output
Single 5V power supply
Low input capacitance: 8 pF
Reference impedance: 330
Ω
(typ.)
Absolute Maximum Ratings
(Ta=25 °C)
• Supply voltage V
DD
• Reference voltage
V
RT
, V
RB
• Input voltage
(Analog)
• Input voltage
V
IN
V
I
7
V
32 pin QFP (Plastic)
V
DD
+ 0.5 to V
SS
– 0.5 V
V
DD
+ 0.5 to V
SS
– 0.5 V
V
DD
+ 0.5 to V
SS
– 0.5 V
V
DD
+ 0.5 to V
SS
– 0.5 V
Applications
Wide range of applications that require high-speed
A/D conversion such as TV and VCR.
Structure
Silicon gate CMOS IC
(Digital)
• Output voltage V
O
(Digital)
• Storage temperature
Tstg
–55 to +150
°C
Recommended Operating Conditions
• Supply voltage AV
DD
, AV
SS
4.75 to 5.25
DV
DD
, DV
SS
| DV
SS
– AV
SS
| 0 to 100
• Reference input voltage
V
RB
V
RT
0 and above
2.7 and below
V
mV
V
V
• Analog input V
IN
1.8 Vp-p above
• Clock pulse width
Tpw
1
, Tpw
0
13 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—
E91Z07G86-TE
SONY [ SONY CORPORATION ]
