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| 型號： | UPD178024GC |
| 廠商： | NEC Corp. |
| 元件分類： | 8位微控制器 |
| 英文描述： | 8-bit Microcontroller with 2/4/8K Bytes In-System Programmable Flash |
| 中文描述： | 8位微控制器與2/4/8K字節(jié)在系統(tǒng)可編程閃存 |
| 文件頁數(shù)： | 45/98頁 |
| 文件大?。?/td> | 467K |
| 代理商： | UPD178024GC |
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Data Sheet U14608EJ1V0DS00
45
μ
PD178024GC-051
3.2
Reception Frequency, Channel Space, Reference Frequency, and Intermediate Frequency
The frequencies receivable in each band in the radio mode, channel space, reference frequency, and a range of
intermediate frequencies in which broadcasting stations are detected differ as follows depending on the region for
which the application set is intended and are specified by initialization switches “AREA1” and “AREA2”.
The range of the intermediate frequencies in which stations are detected during auto tuning of the AM band (MW
or LW) can be selected by using initialization switch “AMIF”.
The reception frequencies, channel space, reference frequency, and intermediate frequencies are as follows:
Region
Band
Reception
Frequency
Channel
Space
Reference
Frequency
AMIF
Intermediate
Frequency
FM1, FM2, FM3
87.5 to 108.0 MHz
50 kHz
25 kHz
×
+10.7 MHz
±
20 kHz
0
+450 kHz
±
3 kHz
AM1 (MW)
522 to 1,620 kHz
9 kHz
9 kHz
1
+10.7 MHz
±
20 kHz
0
+450 kHz
±
0.5 kHz
Western
Europe
AM2 (LW)
144 to 290 kHz
1 kHz
1 kHz
1
+10.7 MHz
±
20 kHz
FM1
65.0 to 74.0 MHz
50 kHz
25 kHz
×
+10.7 MHz
±
20 kHz
FM2, 3
87.5 to 108.0 MHz
50 kHz
25 kHz
×
+10.7 MHz
±
20 kHz
0
+450 kHz
±
3 kHz
AM1 (MW)
522 to 1,620 kHz
9 kHz
9 kHz
1
+10.7 MHz
±
20 kHz
0
+450 kHz
±
0.5 kHz
Eastern
Europe
AM2 (LW)
144 to 290 kHz
1 kHz
1 kHz
1
+10.7 MHz
±
20 kHz
FM1, FM2, FM3
87.5 to 108.0 MHz
100 kHz
25 kHz
×
+10.7 MHz
±
20 kHz
0
+450 kHz
±
3 kHz
USA 1
AM1 (MW1)
AM2 (MW2)
530 to 1,620 kHz
10 kHz
10 kHz
1
+10.7 MHz
±
20 kHz
FM1, FM2, FM3
87.5 to 107.9 MHz
200 kHz
25 kHz
×
+10.7 MHz
±
20 kHz
0
+450 kHz
±
3 kHz
USA 2
AM1 (MW1)
AM2 (MW2)
530 to 1,710 kHz
10 kHz
10 kHz
1
+10.7 MHz
±
20 kHz
(0: Pull down, 1: Pull up,
×
: don’t care)
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