參數(shù)資料
型號(hào): HFA3761IN
廠商: HARRIS SEMICONDUCTOR
元件分類(lèi): 無(wú)繩電話/電話
英文描述: 400MHz AGC and Quadrature IF Demodulator
中文描述: TELECOM, CELLULAR, RF AND BASEBAND CIRCUIT, PQFP80
文件頁(yè)數(shù): 9/9頁(yè)
文件大?。?/td> 68K
代理商: HFA3761IN
4-9
TABLE 1. LOW PASS FILTER PROGRAMING AND TUNING INFORMATION
MODE
LPF SEL1
LPF SEL0
f
3dB
(NOMINAL R
TUNE
)
BW0
0
0
2.2MHz
BW1
0
1
4.4MHz
BW2
1
0
8.8MHz
BW3
1
1
17.6MHz
f
TUNED
3dB
f
787
TUNE
---------------------------------------------------
=
-30
-25
-20
-15
-10
-5
0
+5
+10 +15
+20
+25 +30
+20%
-20%
P
[(787 - R
TUNE
)/R
TUNE
]
*
100%
FIGURE 1. TYPICAL f
3dB
vs R
TUNE
FREQUENCY
R
TUNE
20% Low
984
Nominal
787
20% High
656
HFA3761
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