參數(shù)資料
型號(hào)： G1984M
英文描述： Analog IC
中文描述： 模擬IC
文件頁數(shù)： 3/6頁
文件大小： 88K
代理商： G1984M
3
Dec 02, 1999
SAW Components
IF Filter for Intercarrier Applications
Data Sheet
G 1984 M
38,90 MHz
Characteristics
Reference temperature:
Terminating source impedance:
Terminating load impedance:
T
A
= 25 C
Z
S
= 50
Z
L
= 2 k
|| 3 pF
min.
typ.
max.
Insertion attenuation
Reference level for the
following data
α
37,40 MHz
14,2
15,7
17,2
dB
Relative attenuation
Picture carrier
Color carrier
Sound carrier
NICAM sound carrier
Adjacent picture carrier UHF
Adjacent picture carrier
VHF
α
rel
38,90 MHz
34,47 MHz
33,40 MHz
33,05 MHz
30,90 MHz
31,90 MHz
32,40 MHz
40,15 MHz
40,40 MHz
41,40 MHz
5,0
0,1
12,6
—
46,0
48,0
30,0
42,0
46,0
43,0
40,0
40,0
6,0
1,1
13,6
13,6
60,0
62,0
35,0
54,0
56,0
56,0
46,0
46,0
7,0
2,1
14,6
—
—
—
—
—
—
—
—
—
dB
dB
dB
dB
dB
dB
dB
dB
dB
dB
dB
dB
Adjacent sound carrier VHF
Adjacent sound carrier
UHF
Lower sidelobe
Upper sidelobe
25,00 ... 31,90 MHz
40,40 ... 45,00 MHz
Reflected wave signal suppression
1,2
μ
s ... 6,0
μ
s after main pulse
(test pulse 250 ns,
carrier frequency 37,40 MHz)
44,0
54,0
—
dB
Feedthrough signal suppression
1,2
μ
s ... 1,1
μ
s before main pulse
(test pulse 250 ns,
carrier frequency 37,40 MHz)
50,0
56,0
—
dB
Group delay predistortion
(reference frequency 38,90 MHz)
τ
36,90 MHz
34,47 MHz
—
—
–90
10
—
—
ns
ns
Impedance
at 37,40 MHz
Input:
Output: Z
OUT
= R
OUT
|| C
OUT
Z
IN
= R
IN
|| C
IN
—
—
1,8||12,7
1,9|| 3,7
—
—
k
|| pF
k
|| pF
Temperature coefficient of frequency
TC
f
—
–72
—
ppm/K
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