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參數(shù)資料
| 型號： | CXD2931R-9 |
| 英文描述： | RF/BASEBAND CIRCUIT|CMOS|QFP|144PIN|PLASTIC |
| 中文描述： | 射頻/基帶電路|的CMOS | QFP封裝| 144Pin支持|塑料 |
| 文件頁數(shù)： | 24/27頁 |
| 文件大?。?/td> | 264K |
| 代理商： | CXD2931R-9 |
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CXD2931R-9/GA-9
Description of Application Circuit
See the Application Circuit when using the CXD2931R-9/GA-9 to configure a GPS receiver.
Points for caution are as follows.
1. Unused pins
Software processing is performed to prevent undesired current from flowing to unused pins in the circuit
diagram, so leave these pins open.
2. TCXO input
The TCXO frequency is 18.414MHz ± 3ppm. Signals that have not been binary-converted should be input
via a DC filter capacitor (C19 in the circuit diagram). Input binary-converted signals directly to Pin 7 (TCXO)
without passing through C19 or R1 in the circuit diagram.
Make sure the input level at this time satisfies the Electrical Characteristics.
3. IF input
The CXD2931R-9/GA-9 interface is 1.023MHz, and does not accept other frequencies. Signals that have
not been binary-converted should be input via a DC filter capacitor (C20). Input binary-converted signals
directly to Pin 18 (IF0) without passing through C20 or R3 in the circuit diagram.
Make sure the input level at this time satisfies the Electrical Characteristics.
4. TXD (SIO output)
The TXD amplitude low level is 0.4V or less, and the high level is V
DD
–
0.4V (V
DD
= 3.0 to 3.6V) or more.
When the LSI, etc., connected to TXD operates at 5V and has a CMOS input level, perform 3 to 5V
conversion before inputting the signal.
5. Real-time clock
The current software version uses an external real-time clock. Consult your Sony representative
beforehand when using the internal real-time clock. When using an external real-time clock, connect Pin 13
(CCKI) to GND.
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PDF描述 |
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| CXD2932AGA-2 | GPS Base Band LSI |
| CXD2932AR-2 | GPS Base Band LSI |
| CXD8069G | Color Encoder Circuit |
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| CXD2931R-9/GA-9 | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:1 chip GPS LSI |
| CXD2932AGA-2 | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:GPS Base Band LSI |
| CXD2932AR-2 | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:GPS Base Band LSI |
| CXD2951GA-2 | 制造商:SONY 制造商全稱:Sony Corporation 功能描述:Single Chip GPS LSI |
| CXD2951GA-4 | 制造商:SONY 制造商全稱:Sony Corporation 功能描述:Single Chip GPS LSI |
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