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參數(shù)資料
| 型號(hào)： | SN260Q |
| 廠商： | STMICROELECTRONICS |
| 元件分類： | 微控制器/微處理器 |
| 英文描述： | LOCAL AREA NETWORK CONTROLLER, QCC40 |
| 封裝： | 6 X 6 MM, 0.90 MM HEIGHT, ROHS COMPLIANT, MQ220, QFN-40 |
| 文件頁(yè)數(shù)： | 4/47頁(yè) |
| 文件大?。?/td> | 1592K |
| 代理商： | SN260Q |
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Top-level functional description
SN260
5
Top-level functional description
Figure 3 shows a detailed block diagram of the SN260.
Figure 3.
SN260 block diagram
The radio receiver is a low-IF, super-heterodyne receiver. It utilizes differential signal paths
to minimize noise interference, and its architecture has been chosen to optimize co-
existence with other devices within the 2.4GHz band (namely, IEEE 802.11g and Bluetooth).
After amplification and mixing, the signal is filtered and combined prior to being sampled by
an ADC.
The digital receiver implements a coherent demodulator to generate a chip stream for the
hardware-based MAC. In addition, the digital receiver contains the analog radio calibration
routines and control of the gain within the receiver path.
The radio transmitter utilizes an efficient architecture in which the data stream directly
modulates the VCO. An integrated PA boosts the output power. The calibration of the TX
path as well as the output power is controlled by digital logic. If the SN260 is to be used with
an external PA, the TX_ACTIVE signal should be used to control the timing of the external
switching logic.
The integrated 4.8 GHz VCO and loop filter minimize off-chip circuitry. Only a 24MHz crystal
with its loading capacitors is required to properly establish the PLL reference signal.
The MAC interfaces the data memory to the RX and TX baseband modules. The MAC
provides hardware-based IEEE 802.15.4 packet-level filtering. It supplies an accurate
symbol time base that minimizes the synchronization effort of the software stack and meets
the protocol timing requirements. In addition, it provides timer and synchronization
assistance for the IEEE 802.15.4 CSMA-CA algorithm.
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相關(guān)代理商/技術(shù)參數(shù) |
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|---|---|
| SN260QT | 功能描述:射頻收發(fā)器 ZIGBEE 802.15.4 NETWORK PROCESSOR RoHS:否 制造商:Atmel 頻率范圍:2322 MHz to 2527 MHz 最大數(shù)據(jù)速率:2000 Kbps 調(diào)制格式:OQPSK 輸出功率:4 dBm 類型: 工作電源電壓:1.8 V to 3.6 V 最大工作溫度:+ 85 C 接口類型:SPI 封裝 / 箱體:QFN-32 封裝:Tray |
| SN2634 | 制造商:Omron Corporation 功能描述:RELAY ASSEMBLY |
| SN26500PWR | 制造商:Texas Instruments 功能描述: |
| SN27210DRKR | 制造商:Texas Instruments 功能描述:Custom firmware of BQ27210 |
| SN27322 | 制造商:Texas Instruments 功能描述: |
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