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參數(shù)資料
| 型號(hào)： | W93910 |
| 廠商： | WINBOND ELECTRONICS CORP |
| 元件分類： | 尋呼電路 |
| 英文描述： | ERMES(Enhanced Radio Emessage System) Paging Protcol Decoder(增強(qiáng)的無(wú)線電子信息系統(tǒng)尋呼解碼器) |
| 中文描述： | TELECOM, PAGING DECODER, PDSO28 |
| 封裝： | SSOP-28 |
| 文件頁(yè)數(shù)： | 17/35頁(yè) |
| 文件大小： | 267K |
| 代理商： | W93910 |
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W93910
Publication Release Date: Auguest 1999
- 17 - Revision A1
TXCLK
TXDATA
Reserved
CC6-0
Op2-0
Cycle No5-0
Start
Stop
Hour4-0
Batch3-0
Figure 10. System information read out format
DATA INPUT
The 4 level FSK signal is converted to 2 bit digital signal by IF demodulator, as shown in Figure 11,
where fn is the carrier frequency from 169.425 MHz to 169.8 MHz. The 2 bit digital signal should be
connected to the D1(MSB), D0(LSB) inputs of W93910. The D1 and D0 inputs could be inverted by
setting the D1IV, and D0IV option bits to provide some flexibility.
OPTION BIT
FUNCTION
D1IV, D0IV
D1 input, D0 input
0
Non-inversion
1
Inversion
Table 13. D1, D0 relative option bits
D1
D0
00
01
11
10
0
1
0
0
1
0
1
1
0
1
1
0
:
:
(fn+1562.5Hz)
(fn-4687.5Hz)
(fn+4687.5Hz)
(fn-1562.5Hz)
Figure 11. 4 PAM mapping to D1, D0(fn is the channel carrier frequency)
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