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參數資料
| 型號： | MICRF505BML |
| 廠商： | MICREL INC |
| 元件分類： | 無繩電話/電話 |
| 英文描述： | 868MHz and 915MHz ISM Band Transceiver |
| 中文描述： | TELECOM, CELLULAR, RF AND BASEBAND CIRCUIT, QCC32 |
| 封裝： | MLF-32 |
| 文件頁數： | 1/27頁 |
| 文件大小： | 275K |
| 代理商： | MICRF505BML |
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May 13, 2004
1
M9999-051304
MICRF505
Micrel
MICRF505
868MHz and 915MHz ISM Band Transceiver
General Description
The MICRF505 is a true single chip, frequency shift keying
(FSK) transceiver intended for use in half-duplex, bidirec-
tional RF links. The multi-channeled FSK transceiver is
intended for UHF radio equipment in compliance with the
North American Federal Communications Commission (FCC)
part 15.247 and 249, as well as the European Telecommuni-
cation Standard Institute (ETSI) specification, EN300 220.
The transmitter consists of a PLL frequency synthesizer and
a power amplifier. The frequency synthesizer consists of a
voltage-controlled oscillator (VCO), a crystal oscillator, dual
modulus prescaler, programmable frequency dividers, and a
phase-detector. The loop-filter is external for flexibility and
can be a simple passive circuit. The output power of the
power amplifier can be programmed to seven levels. A lock-
detect circuit detects when the PLL is in lock. In receive mode,
the PLL synthesizer generates the local oscillator (LO) signal.
The N, M , and A values that give the LO frequency are stored
in the N0, M0, and A0 registers.
The receiver is a zero intermediate frequency (IF) type which
makes channel filtering possible with low-power, integrated
low-pass filters. The receiver consists of a low noise amplifier
(LNA) that drives a quadrature mixer pair. The mixer outputs
feed two identical signal channels in phase quadrature. Each
channel includes a pre-amplifier, a third order Sallen-Key RC
low-pass filter that protects the following switched-capacitor
filter from strong adjacent channel signals, and a limiter. The
main channel filter is a switched-capacitor implementation of
a six-pole elliptic low pass filter. The cut-off frequency of the
Sallen-Key RC filter can be programmed to four different
frequencies: 100kHz, 150kHz, 230kHz, and 340kHz. The I
and Q channel outputs are demodulated and produce a
digital data output. The demodulator detects the relative
phase of the I and the Q channel signal. If the I channel signal
lags behind the Q channel, the FSK tone frequency is above
the LO frequency (data ‘1’). If the I channel leads the Q
channel, the FSK tone is below the LO frequency (data ‘0’).
The output of the receiver is available on the DataIXO pin. A
receive signal strength indicator (RSSI) circuit indicates the
received signal level. All support documentation can be
found on Micrel’s web site at www.micrel.com.
Features
True single chip transceiver
Digital bit synchronizer
Received signal strength indicator (RSSI)
RX and TX power management
Power down function
Reference crystal tuning capabilities
Baseband shaping
Three-wire programmable serial interface
Register read back function
Applications
Telemetry
Remote metering
Wireless controller
Remote data repeater
Remote control systems
Wireless modem
Wireless security system
Ordering Information
Part Number
Junction Temp. Range
–40
∞
C to +85
∞
C
Package
MICRF505BML
32-Pin MLF
Micrel, Inc. 1849 Fortune Drive San Jose, CA 95131 USA tel + 1 (408) 944-0800 fax + 1 (408) 474-1000 http://www.micrel.com
Micro
LeadFrame and MLF are trademarks of Amkor Technology, Inc.
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相關代理商/技術參數 |
參數描述 |
|---|---|
| MICRF505BML TR | 功能描述:TXRX ISM 868-915MHZ 32-MLF RoHS:否 類別:RF/IF 和 RFID >> RF 收發(fā)器 系列:- 產品培訓模塊:Lead (SnPb) Finish for COTS Obsolescence Mitigation Program 標準包裝:30 系列:- 頻率:4.9GHz ~ 5.9GHz 數據傳輸率 - 最大:54Mbps 調制或協議:* 應用:* 功率 - 輸出:-3dBm 靈敏度:- 電源電壓:2.7 V ~ 3.6 V 電流 - 接收:* 電流 - 傳輸:* 數據接口:PCB，表面貼裝 存儲容量:- 天線連接器:PCB，表面貼裝 工作溫度:-25°C ~ 85°C 封裝/外殼:68-TQFN 裸露焊盤 包裝:管件 |
| MICRF505DEV1 | 功能描述:射頻開發(fā)工具 MICRF505 Evaluation Kit - For experimental use only RoHS:否 制造商:Taiyo Yuden 產品:Wireless Modules 類型:Wireless Audio 工具用于評估:WYSAAVDX7 頻率: 工作電源電壓:3.4 V to 5.5 V |
| MICRF505DEV1 | 制造商:Micrel Inc 功能描述:KIT MICRF505 EVALUATION |
| MICRF505L | 制造商:MICREL 制造商全稱:Micrel Semiconductor 功能描述:850MHz and 950MHz ISM Band Transceiver |
| MICRF505LYML | 制造商:Rochester Electronics LLC 功能描述: 制造商:RF Micro Devices Inc 功能描述: |
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