參數(shù)資料
型號(hào): FM1246
廠商: NXP Semiconductors N.V.
英文描述: CABLE ASSEM 2MM 40POS F-F 12,1
中文描述: 桌面視頻
文件頁數(shù): 16/24頁
文件大小: 177K
代理商: FM1246
1997 May 14
16
Philips Components
Preliminary specification
Desktop video & FM radio module
system CCIR I
FM1246
Video buffer
A video buffer is built into the video module to enable the
unit to drive a 75
load directly.
I
2
C-bus load
The FM1246 contains a series resistor (R = 100
) in the
SCL and SDA lines. Both lines also have a capacitive load
of typical 22 pF (see Fig.3).
Fig.3 I
2
C-bus load.
handbook, halfpage
CCA507
AS
15
C1
56 pF
R3
R1
R2
100
SCL
13
C3
22 pF
R5
100
SDA
14
C2
22 pF
R4
100
VCC
PLL IC
Fig.4 Typical video signal-to-noise ratio versus RF input level.
handbook, full pagewidth
120
10
20
40
60
80
100
CCA651
50
30
video S/N
(dB)
RF input level (dB
μ
V)
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