参数资料
型号: AT86RF230-ZU
厂商: ATMEL CORP
元件分类: 网络接口
英文描述: ZigBee/IEEE 802.15.4-Transceiver
中文描述: DATACOM, INTERFACE CIRCUIT, PQCC32
封装: 5 X 5 MM, 0.50 MM PITCH, GREEN, PLASTIC, MO-220VHHD-6, QFN-32
文件页数: 23/50页
文件大小: 445K
代理商: AT86RF230-ZU
23
AT86RF230
5131A-ZIGB-06/14/06
CX
CX
16MHz
XTAL1
XTAL2
VDD
C
TRIM
C
TRIM
C
PAR
C
PAR
AT86RF230
PCB
XTAL_TRIM[3:0]
XTAL_TRIM[3:0]
Figure 6-3.
Simplified XOSC Schematic with External Components
When using an external reference frequency, the signal needs to be connected to pin XTAL1 as indicated in
Figure
6-4
and the register bits XTAL_MODE needs to be set to the external oscillator mode. The oscillation amplitude
shouldn’t be larger than 500 mV, peak-to-peak.
XTAL1
XTAL2
AT86RF230
PCB
16 MHz
Figure 6-4.
Setup for Using an External Frequency Reference
6.7. PLL Frequency Synthesizer
The synthesizer of the AT86RF230 is implemented as a fractional-N PLL. Two calibration loops ensure correct
functionality within the specified operating limits.
The center frequency control loop ensures a correct center frequency of the VCO for the currently programmed
channel. The center frequency calibration algorithm can be started manually by setting PLL_CF_START = 1 of
register 0x1A (PLL_CF). The result of the calibration is also available in this register.
The delay calibration unit compensates the phase errors inherent in fractional-N PLLs. Using this technique,
unwanted spurious frequency components beside the RF carrier are suppressed, and the PLL behaves almost like
an integer-N PLL. A calibration cycle can be initiated by setting the register bit PLL_DCU_START = 1 of the
register 0x1B (PLL_DCU). The calibration result is written to the register bits PLL_DCUW.
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相关代理商/技术参数
参数描述
AT86RF230-ZU SL176 制造商:Atmel Corporation 功能描述:
AT86RF230-ZUR 功能描述:射频收发器 2.4 GHZ ZigBee Transceiver RoHS:否 制造商:Atmel 频率范围:2322 MHz to 2527 MHz 最大数据速率:2000 Kbps 调制格式:OQPSK 输出功率:4 dBm 类型: 工作电源电压:1.8 V to 3.6 V 最大工作温度:+ 85 C 接口类型:SPI 封装 / 箱体:QFN-32 封装:Tray
AT86RF231 制造商:ATMEL 制造商全称:ATMEL Corporation 功能描述:Low power 2.4 GHz Transceiver for ZigBee, IEEE 802.15.4, and ISM Applications
AT86RF231-ZF 功能描述:射频收发器 2.4GHZ ZigBee Transceiver RoHS:否 制造商:Atmel 频率范围:2322 MHz to 2527 MHz 最大数据速率:2000 Kbps 调制格式:OQPSK 输出功率:4 dBm 类型: 工作电源电压:1.8 V to 3.6 V 最大工作温度:+ 85 C 接口类型:SPI 封装 / 箱体:QFN-32 封装:Tray
AT86RF231-ZFR 功能描述:射频收发器 2.4GHZ ZigBee Transceiver RoHS:否 制造商:Atmel 频率范围:2322 MHz to 2527 MHz 最大数据速率:2000 Kbps 调制格式:OQPSK 输出功率:4 dBm 类型: 工作电源电压:1.8 V to 3.6 V 最大工作温度:+ 85 C 接口类型:SPI 封装 / 箱体:QFN-32 封装:Tray