参数资料
型号: B39458M1971M100S1
厂商: EPCOS Inc
文件页数: 3/6页
文件大小: 0K
描述: FILTER SAW 45.75MHZ IF 5-SIP
标准包装: 1,000
频率: 45.75MHz 中心
滤波器类型: 带通
插入损耗: 12.3dB
应用: TV
封装/外壳: 5-SIP
安装类型: 通孔
包装: 带卷 (TR)
高度(最大): 0.343"(8.70mm)
尺寸/尺寸: 0.681" L x 0.154" W(17.30mm x 3.90mm)
其它名称: B39458M1971M100
B39458M1971M100-ND
B39458M197M100S1
Q1867570
SAW Components
IF Filter for Intercarrier Applications
Data Sheet
Characteristics
Reference temperature:
Terminating source impedance:
Terminating load impedance:
T A = 25 (45) ?C
Z S = 50 ?
Z L = 2 k ? || 3 pF
M 1971 M
45,75 MHz
Insertion attenuation
α
min.
typ.
max.
Reference level for the 44,06 (44,00) MHz
10,8
12,3
13,8
dB
following data
Relative attenuation
α rel
Picture carrier 45,81 (45,75) MHz
Color carrier 42,23 (42,17) MHz
Sound carrier 41,31 (41,25) MHz
Adjacent picture carrier 39,81 (39,75) MHz
Adjacent sound carrier 47,31 (47,25) MHz
5,3
1,0
15,6
46,5
46,5
6,0
2,0
17,1
60,0
55,0
6,7
3,0
18,6
dB
dB
dB
dB
dB
Lower sidelobe
35,06 ... 39,81 (35,00 ... 39,75) MHz
36,5
41,0
dB
Upper sidelobe
47,31 ... 55,06 (47,25 ... 55,00) MHz
38,5
44,0
dB
Reflected wave signal suppression
1,1 μ s ... 6,0 μ s after main pulse
42,0
52,0
dB
(test pulse 250 ns,
carrier frequency 44,06 MHz)
Feedthrough signal suppression
1,0 μ s ... 0,9 μ s before main pulse
50,0
56,0
dB
(test pulse 250 ns,
carrier frequency 44,06 MHz)
Group delay ripple (p-p)
40
ns
Impedance at 44,06 MHz
Input:
Z IN
= R IN
|| C IN
1,5 ||10,6
k ? || pF
Output: Z OUT = R OUT || C OUT
1,0 || 3,6
k ? || pF
Temperature coefficient of frequency
TC f
–72
ppm/K
3
Mar 31, 2006
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