sm5302a Nippon Precision Circuits Inc, (NPC), sm5302a Datasheet - Page 15

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

(3) Output gain
(4) Disable mode select
(5) Input multiplexer selection
(6) fc mode switching (1/2 cutoff frequency switching)
Register name: CONDITION1
Flag name: GS
Register name: CONDITION2
Flag name: PD
This flag enables/disables the analog block. When the analog block is disabled, the output pins are high
impedance.
Register name: CONDITION2
Flag name: MUX
This flag selects the A or B input for all three channels (IN1×, IN2×, IN3×). Note that this flag is significant
only when the MUXSEL input is LOW. See “Input Multiplexer Switching (MUXSEL)”.
*1. n = 1, 2, 3
Register name: CONDITION2
Flag name: HALF
This flag switches the cutoff frequency of CH-2 and CH-3 to divide the value set by the FCSET register into
halves. Note that the CH-1 cutoff frequency cannot be switched. This mode is suitable for systems where
the sampling frequency varies due to Y, Cr, and Cb requirements, such as digital component signals or digi-
tal HDTV signals.
Flag name
Flag name
Flag name
Flag name
HALF
MUX
GS
PD
H
H
H
H
L
L
L
L
(CH-2, CH-3 cutoff frequency is 1/2 that of CH-1)
(CH-1, CH-2, CH-3 cutoff frequency is identical)
Enable (normal operation)
Disable (no operation)
Input selection
Standard fc mode
Output gain
Half fc mode
fc mode
Mode
INnA
INnB
0dB
6dB
SM5302A
*1
Default
Default
Default
Default
SEIKO NPC CORPORATION —15