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AN5870K

P1-P3P4-P6P7-P9P10-P12P13-P15P16-P16
AN5870K
13
SDB00035BEB
■ Technical Information
• Operational explanation
1. SW block
Switches over R, G, B, H, V signal of 2 systems.
SW pin (pin 22) Selected pins
In low-level R in 1 (pin 1), G in 1 (pin 5), B in 1 (pin 9), H in 1 (pin 13), V in 1 (pin 15)
In high-level R in 2 (Pin 3), G in 2 (pin 7), B in 2 (pin 11), H in 2 (pin 14), V in 2 (pin 16)
Input signal Output signal
Sync.-in pin (pin 21) H-in pin (pin 13 · pin 14) H-out pin (pin 19)
●●H-in signal
● Sync.in signal
● H-in signal
DC (state of sync.-in pin)
2. High-level signal detection block
Sync.-in pin (pin 21) is a pin for inputting the sync.-on green signal and it is separated into the
composite sync. signal (composite sync.) inside. H-in 1 and 2 pins (pin 13 or pin 14) are input
pins for the video signal and the separated horizontal signal.
The high-level signal detection block discriminates the presence of H-in signal which is
selected in SW block and provides the output to H-out pin (pin 19) in the following manner.
H signal detection pin (pin 20) voltage becomes under 1 V or over 4 V if H. sync. signal is not
inputted.
The output signal for the H. sync. signal detection pin voltage becomes as follows and it has
hysteresis characteristics. It is possible to adjust the H. sync. signal detection time by means of an
external capacitor.
2V1V0V
1V 2.5V 4V
3V 5V
When rising
from 0 V
(Detection voltage change)
When detecting
H. sync. signal
(Sync.-in signal is selected
when lowed under 1 V)
When decreasing
from 5 V
Sync-in signal selection
(Detection voltage change)
(H-in signal is selected when lowed under 3 V)
H. sync. signal detection
pin voltage
(H-in signal is selected if 2 V is exceeded)
(Detection voltage change)
H-in signal selection
H. sync. signal
detection
pin voltage
(Sync.-in signal is selected
when 4 V is exceeded)
(Detection voltage change)
H. sync. signal
detection
pin voltage
Sync.-in signal selection
AN5870K
14
SDB00035BEB
■ Usage Notes
1. About C22 0.01 µF capacitor (refer to ■ Application Circuit Example)
In the case of evaluation board for this IC without heat sink, a resonance phenomena takes place at approx.
400 MHz between pin 23 B-out pin and pin 22 SW pin and affects the frequency characteristic of B-out pin.
To solve the above problem, the correction can be made by attaching C22 0.01 µF capacitor between pin 22
SW pin and GND at a place as close to the IC as possible.
In the case of using this IC, study if the correction is necessary.
2. About latch-up
In our latch-up testing, a voltage charged to 200 pF capacitor is applied to the IC pin, in the state of providing
only a voltage to the power supply pin of the IC, and we confirm that the latch-up does not occur up to 200 V.
It is confirmed that this IC does not cause latch-up up to 200 V under a condition including the peripheral
components. (Refer to ■ Application Circuit Example).
Be careful to pin 20, pin 21, pin 28 and pin 30 which are especially weak.
In the case of using this IC, the peripheral components to be attached externally should be placed as close to
the IC as possible.
■ Application Circuit Example
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
30
29
28
27
26
25
24
23
22
21
20
19
18
17
16
H-in1
H-in2
V-in1
R-in1
R-in2
V
CC1
(5 V)
G-in1
B-in1
B-in2
G-in2
R-out
V
CC2
(12 V)
G-out
G sync.
B-out
SW
C22
Sync. in
H-out
V-out
V-in2
V
CC1
V
CC2
1 µF
75 Ω
±1%
75 Ω
±1%
V
CC1
1 µF
75 Ω
±1%
V
CC1
1 µF
75 Ω
±1%
V
CC1
1 µF
75 Ω
±1%
V
CC1
1 µF
75 Ω
±1%
V
CC1
1 µF
75 Ω
±1%
220 µF
0.01 µF
V
CC2
75 Ω
±1%
220 µF
0.01 µF
V
CC2
75 Ω
±1%
220 µF
0.01 µF
0.15 µF
0.1 µF
200 Ω
10 Ω
10 Ω
10 Ω
10 Ω
6 dB
6 dB
6 dB
Sync. sepSw select bias
Hsync
detect sw
AN5870K
15
SDB00035BEB
■ New Package Dimensions (Unit: mm)
•
SDIP030-P-0400B (Lead-free package)
16
15
30
1
8.60
±0.20
26.68
±0.30
0.30
+0.10
-
0.05
4.83
±0.25
Seating plane
3.30
±0.25
1.13
±0.25
(0.894)
0.90
+0.10
-
0.05
0.50
+0.10
-
0.05
0.70
+0.10
-
0.05
3° to 15°
10.16
1.778
P1-P3P4-P6P7-P9P10-P12P13-P15P16-P16

AN5870K

Mfr. #:
Buy AN5870K
Manufacturer:
Panasonic
Description:
IC SWITCH VIDEO RGB 2:1 30SDIP
Lifecycle:
New from this manufacturer.
Delivery:
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