sm5302a Nippon Precision Circuits Inc, (NPC), sm5302a Datasheet - Page 20

• Manufacturer Part Number: sm5302a
• Description: 3-channel Video Buffer With Built-in Wideband Lpf
• Manufacturer: Nippon Precision Circuits Inc, (NPC)

USAGE PRECAUTIONS
Slave Address (94h) Setting
When slave address 94h is used, the ADS input must be left open circuit. In this case, an external resistor
should be connected as shown in figure 6 to reduce the risk of malfunction due to large external spikes or other
noise. The recommended value is 10kΩ.
Oscillation Prevention Capacitor Connection
If the sag compensation circuit is used with 2 output capacitors connected, the capacitors should be mounted
within approximately 8cm of the IC pins. If the distance exceeds 8cm, they may cause an oscillation. A 15pF
oscillation prevention capacitor should be connected between OUTnA and OUTnB. If the sag compensation
circuit is not used, OUTnA is connected to OUTnB. As there is only 1 output capacitor, an oscillation preven-
tion capacitor is not required.
Unused Analog Inputs
It is recommended that unused analog inputs should be connected to ground through a capacitor as shown in
figure 8.
Direct Input Mode
In direct input mode, the signal is connected to the input without an input capacitor. However, the input DC
voltage range varies with the mode setting, hence the signal must be appropriately biased for the corresponding
mode. The recommended LOW-level voltage (V
table 3 (see figure 9, V
output signal. Note that even if these limits are exceeded, device breakdown will not occur if still within the
absolute maximum ratings.
Figure 6. Slave address 94h setting
Figure 8. Unused analog inputs
Video Signal In
10k
10k
Slave address = 94h
CC
= 5V). If the input voltage exceeds these limits, harmonic distortion may occur in the
INnA
(Used input)
INnB
(Unused input)
VDD
ADS
VSS
L
SM5302A
) and HIGH-level voltage (V
Figure 7. Oscillation prevention capacitor connection
Figure 9. Direct input mode
OUTnA
OUTnB
SEIKO NPC CORPORATION —20
H
) for each mode is shown in
> 8cm
Video Signal In
15p
VCC
V
VL
GND
H
INnA
INnB