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參數(shù)資料
| 型號(hào)： | SM5302AS |
| 廠商： | Seiko NPC Corporation |
| 英文描述： | 3-channel Video Buffer with Built-in wideband LPF |
| 中文描述： | 3通道視頻緩沖器，具有內(nèi)置的寬帶低通濾波器 |
| 文件頁數(shù)： | 15/26頁 |
| 文件大小： | 503K |
| 代理商： | SM5302AS |
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SM5302A
NIPPON PRECISION CIRCUITS INC.—15
(3) Output gain
Register name: CONDITION1
Flag name: GS
(4) Disable mode select
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.
(5) Input multiplexer selection
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)”.
(6) fc mode switching (1/2 cutoff frequency switching)
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
Output gain
Default
GS
L
0dB
H
6dB
Flag name
Mode
Default
PD
L
Enable (normal operation)
H
Disable (no operation)
Flag name
Input selection
*1
*1. n = 1, 2, 3
Default
MUX
L
INnA
H
INnB
Flag name
fc mode
Default
HALF
L
Standard fc mode
(CH-1, CH-2, CH-3 cutoff frequency is identical)
H
Half fc mode
(CH-2, CH-3 cutoff frequency is 1/2 that of CH-1)
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