CXA2016S Datasheet, PDF (9/12 Pages) Sony Corporation – Sync Identification for CRT Display

CXA2016S
Description of Operation
Input signal
• VS IN (Pin 1)
fV : 40 to 200 Hz
VS : 1 to 5Vp-p (positive/negative polarity)
• HS IN (Pin 4)
fH : 15k to 130 kHz
VS : 1 to 5 Vp-p (positive/negative polarity)
• CS IN (Pin 4)
fH : 15 k to 130 kHz
fV : 40 to 200 Hz
VS : 1 to 5 Vp-p (positive/negative polarity)
• Video IN (Pin 7)
fH : 15 k to 130 kHz
fV : 40 to 200 Hz
VV : 0 to 1.4 Vp-p
VS : 0.2 to 0.4 Vp-p
Clamp Pulse Output
• Clamp pulse (Pins 13 and 14) is output under the following conditions.
Pin 13 is for open collector output and is at positive polarity.
Pin 14 is for open collector output and is at negative polarity.
td: Clamp pulse delays for 10 to 20 ns from HD.
tw: Clamp pulse width varies depending on the value of the resistance connected to Pin 9.
<Conditions>
(1) When CS IN or Video IN is selected, a clamp pulse at the VD interval is not output.
(2) During H./V. Separate Sync, a clamp pulse at the VD interval is also output.
(3) When Pin 15 (CLP SEL) is connected to GND, a clamp pulse is output at the back porch interval. When
Pin 15 (CLP SEL) is connected to VCC, a clamp pulse is output at the SYNC interval. If a capacitor is
connected between this pin and GND, the output position is automatically selected.
Clamp Pulse Input/Output Matrix
CLP SEL
GND
VCC
AUTO
VS IN
∗
∗
∗
∗
∗
[O] indicates that input SYNC exists.
[—] indicates no signal (no SYNC).
[ ∗ ] has no relation with input signal.
CS IN
∗
∗
—
O
—
Video IN
∗
∗
O
—
—
Clamp pulse output position
Back porch interval
SYNC interval
Back porch interval
SYNC interval
(Back porch interval)
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