參數(shù)資料
型號(hào)： MQ80C154-20P883
廠商： ATMEL CORP
元件分類： 微控制器/微處理器
英文描述： 8-BIT, 20 MHz, MICROCONTROLLER, CQFP44
封裝： CERAMIC, QFP-44
文件頁(yè)數(shù)： 55/101頁(yè)
文件大?。?/td> 3398K
代理商： MQ80C154-20P883
80
8168C-MCU Wireless-02/10
AT86RF212
6.4 Received Signal Strength Indicator (RSSI)
The Received Signal Strength Indicator is characterized by:
a dynamic range of 87 dB
a resolution of about 3 dB
6.4.1 Overview
The RSSI value indicates the received signal power in the selected channel. No attempt
is made to distinguish IEEE 802.15.4 signals from others; only the received signal
strength is evaluated. The RSSI provides the basis for an ED measurement, see
section 6.5.
6.4.2 Reading RSSI
In Basic Operating Modes, the RSSI value is valid in any receive state and is updated
at time intervals according to Table 6-24. The current RSSI value can be accessed by
reading register bits RSSI of register 0x06 (PHY_RSSI).
Table 6-24. RSSI Update Interval
PHY Mode
Update Interval [s]
BPSK-20
32
BPSK-40
24
O-QPSK
8
It is not recommended reading the RSSI value when using the Extended Operating
Modes. Instead, the automatically generated ED value should be used, see section 6.5.
6.4.3 Data Interpretation
The RSSI value is a 5-bit value in a range of 0 to 28, indicating the receiver input power
in steps of about 3 dB.
A RSSI value of 0 indicates a receiver input power less than or equal to
RSSI_BASE_VAL [dBm], a value of 28 an input power equal to or larger than
(RSSI_BASE_VAL + 87) [dBm]. The value RSSI_BASE_VAL itself depends on the PHY
mode, refer to section 7.1. For typical conditions, it is shown in Table 6-25.
Table 6-25. RSSI_BASE_VAL
PHY Mode
RSSI_BASE_VAL [dBm]
BPSK with 300 kchip/s
-100
BPSK with 600 kchip/s
-100
O-QPSK with 400 kchip/s
-98
O-QPSK with 1000 kchip/s, sine shaping (SIN)
-98
O-QPSK with 1000 kchip/s, raised cosine shaping (RC-0.8)
-97
The receiver input power can be calculated as follows:
PRF [dBm] = RSSI_BASE_VAL + 3.1 RSSI
相關(guān)PDF資料
PDF描述
IR80C52CXXX-12:RD 8-BIT, MROM, 12 MHz, MICROCONTROLLER, CQCC44
IS83C154TXXX-25D 8-BIT, MROM, 25 MHz, MICROCONTROLLER, PQCC44
IF180C52EXXX-L16:R 8-BIT, MROM, 16 MHz, MICROCONTROLLER, PQFP44
MQ80C52CXXX-20/883R 8-BIT, MROM, 20 MHz, MICROCONTROLLER, CQFP44
MJ80C31U-36:D MICROCONTROLLER
相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
MQ80C154-25 制造商:TEMIC 制造商全稱:TEMIC Semiconductors 功能描述:CMOS 0 to 36 MHz Single Chip 8-bit Microcontroller
MQ80C154-30 制造商:TEMIC 制造商全稱:TEMIC Semiconductors 功能描述:CMOS 0 to 36 MHz Single Chip 8-bit Microcontroller
MQ80C154-36 制造商:TEMIC 制造商全稱:TEMIC Semiconductors 功能描述:CMOS 0 to 36 MHz Single Chip 8-bit Microcontroller
MQ80C154-L16 制造商:TEMIC 制造商全稱:TEMIC Semiconductors 功能描述:CMOS 0 to 36 MHz Single Chip 8-bit Microcontroller
MQ80C186-10/BYA 制造商:Rochester Electronics LLC 功能描述:
發(fā)布緊急采購(gòu)，3分鐘左右您將得到回復(fù)。

采購(gòu)需求

(若只采購(gòu)一條型號(hào)，填寫(xiě)一行即可)

發(fā)布成功！您可以繼續(xù)發(fā)布采購(gòu)。也可以進(jìn)入我的后臺(tái)，查看報(bào)價(jià)

發(fā)布成功！您可以繼續(xù)發(fā)布采購(gòu)。也可以進(jìn)入我的后臺(tái)，查看報(bào)價(jià)

*型號(hào) *數(shù)量 廠商 批號(hào) 封裝
添加更多采購(gòu)

我的聯(lián)系方式

*
*
*