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参数资料
| 型号： | PMB2240 |
| 厂商： | SIEMENS A G |
| 元件分类： | 无绳电话/电话 |
| 英文描述： | GSM-Transmitter |
| 中文描述： | TELECOM, CELLULAR, RF AND BASEBAND CIRCUIT, PQFP48 |
| 封装： | PLASTIC, TQFP-48 |
| 文件页数： | 9/31页 |
| 文件大小： | 1663K |
| 代理商： | PMB2240 |
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Siemens AG
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There are four independent supply voltages ( VCC1-3,VCCPR ) and ground rails ( GND1-4 ) to
decouple the modulator/mixer parts, the synthesizer parts, and the RFVCO parts.
The supply pin VCCPR is a separate prescaler supply, which openes the possilility to run the prescaler
together with the rest of the RF synthesizer on a supply voltage that is different from the supplies of the
rest of the chip
GND4 is a special shielding ground to decrease crosstalk between the separately supplied blocks.
GND5 collects the substrate contacts in the modulator and mixer.
It is recommended to connect all GND pins to a common GND on the board.
In the following figure the chip schematic is partitioned according to its supply rails.
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相关代理商/技术参数 |
参数描述 |
|---|---|
| PMB2251V1.3 | 制造商:未知厂家 制造商全称:未知厂家 功能描述:Analog Phase-Locked Loop |
| PMB2302 | 制造商:未知厂家 制造商全称:未知厂家 功能描述:Serial-Input Frequency Synthesizer |
| PMB2303 | 制造商:未知厂家 制造商全称:未知厂家 功能描述:Serial-Input Frequency Synthesizer |
| PMB2304 | 制造商:INFINEON 制造商全称:Infineon Technologies AG 功能描述:PLL-FREQUENCY SYNTHESIZER |
| PMB2304R | 制造商:INFINEON 制造商全称:Infineon Technologies AG 功能描述:PLL-FREQUENCY SYNTHESIZER |
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