cxa3516r Sony Electronics, cxa3516r Datasheet - Page 71

• Manufacturer Part Number: cxa3516r
• Description: 3-channel 8-bit 165msps A/d Converter Amplifier Pll
• Manufacturer: Sony Electronics

• EVEN/ODD function
Example of Using the EVEN/ODD Function
When a toggle signal created by dividing the Vsync signal in half is input to the EVEN/ODD (Pin 108), the
ADC sampling clock is inverted every Vsync signal.
This function can be used to configure a single frame screen from two fields by AD converting an RGB
analog input signal that requires high speed and high resolution, such as a UXGA 60Hz (162MHz) or more
signal, at half the frequency of the original ADC sampling rate.
There are no particular control register settings when using the EVEN/ODD function. The sampling clock is
inverted based on the polarity of the signal input to the EVEN/ODD pin. Be sure to input signal to the
EVEN/ODD pin at TTL level.
Analog input signal
Toggle signal
(EVEN/ODD pin)
Sampling CLK
Operational mode
EVEN/ODD pin
Hsync
Vsync
a
b
d
e
g
h
c
k
f
i
j
l
1
1
EVEN field
3
3
EVEN
a
b
c
d
e
g
h
k
f
i
j
l
L
1
5
5
– 71 –
2
ODD
EVEN/ODD frame
H
3
a
b
c
d
e
g
h
k
f
i
j
l
4
5
2
2
6
ODD field
4
4
6
6
CXA3516R