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參數(shù)資料
| 型號： | S1M8660AX01-F0T0 |
| 元件分類： | 通信及網(wǎng)絡 |
| 英文描述： | SPECIALTY TELECOM CIRCUIT, CBCC48 |
| 封裝： | 7 X 7 MM, BCC-48 |
| 文件頁數(shù)： | 8/32頁 |
| 文件大?。?/td> | 270K |
| 代理商： | S1M8660AX01-F0T0 |
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S1M8660A (Preliminary)
RX IF/BBA WITH GPS
16
Rx Low-Pass Filters
The CDMA baseband signal frequency can range between 1kHz to 630kHz. Normally, the range between 1kHz
to 615kHz is called the In-band, between 630kHz to 750kHz Band-edge, and anything outside of these ranges out
band. Very precise characteristics are required in the in-band range. The ripple, I/Q gain-phase error are critical
factors that lead to noise in the in-band. FM Baseband signal ranges between 100Hz to 15kHz. Normally, the
frequency range between 100Hz to 12kHz is called the in-band, between 12kHz to 18kHz the band-edge, and
anything outside of these ranges the out-band. As for the CDMA, the ripple, I/Q gain-phase error are critical
factors that lead to noise in the in-band.
The LPF characteristic required by these three systems are shown in Figures.
Frequency
+1.5dB
+0.5dB
0
-1.5dB
-4.0dB
-46.0dB
-48.0dB
1kHz
600kHz
630kHz
750kHz
900kHz
1.2MHz
Relative
amplitude
(dB)
Figure 8. CDMA Rx Low-Pass Filter Masks
Frequency
Relative
amplitude
(dB)
+0.5dB
-0.5dB
-3.0dB
-60.0dB
100Hz
12.2kHz
18kHz
60kHz
Figure 9. FM Rx Low-Pass Filter Masks
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相關代理商/技術參數(shù) |
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| S1M8662A | 制造商:SAMSUNG 制造商全稱:Samsung semiconductor 功能描述:CDMA/PCS/GPS Triple Mode IF/ baseband IC |
| S1M8662AX01-F0T0 | 制造商:SAMSUNG 制造商全稱:Samsung semiconductor 功能描述:CDMA/PCS/GPS Triple Mode IF/ baseband IC |
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| S1M8821X01-R0T0 | 制造商:SAMSUNG 制造商全稱:Samsung semiconductor 功能描述:INTERGER RF/IF DUAL PLL |
| S1M8822 | 制造商:SAMSUNG 制造商全稱:Samsung semiconductor 功能描述:INTERGER RF/IF DUAL PLL |
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