sm5330af Nippon Precision Circuits Inc, (NPC), sm5330af Datasheet - Page 17
sm5330af
Manufacturer Part Number
sm5330af
Description
3-channel Video Filter With Built-in 4-system Switch
Manufacturer
Nippon Precision Circuits Inc, (NPC)
Datasheet
1.SM5330AF.pdf
(22 pages)
- Current page: 17 of 22
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Input Circuit
The SM5330A video input pin operating mode can be switched between synctip clamp, bias, and direct (with-
out DC restore) modes for each channel. The possible combinations are described below (set independently for
each system).
The SM5330A has a 4-system input switch built-in, and the system selected by the control register INSEL bits
is input to the lowpass filter. When muting is selected (INSEL = 000b), the signal is not input to the lowpass fil-
ter and the output pins are DC level.
Table 1. Input mode combination
Control register
IMn value
00 b
01 b
10 b
11 b
Clamp
INn_1
Direct
Bias
Bias
SM5330A
Input mode
Clamp
INn_2
Direct
Bias
Bias
Clamp
Clamp
INn_3
Direct
Bias
SEIKO NPC CORPORATION —17
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