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參數資料
| 型號： | MICRF004 |
| 廠商： | Micrel Semiconductor,Inc. |
| 英文描述： | QwikRadio⑩ Low-Power VHF Receiver Advance Information |
| 中文描述： | QwikRadio系列⑩低功率高頻接收機進展信息 |
| 文件頁數： | 1/16頁 |
| 文件大?。?/td> | 94K |
| 代理商： | MICRF004 |
February 9, 2000
1
MICRF004/RF044
MICRF004/RF044
Micrel
MICRF004
QwikRadio Low-Power VHF Receiver
Advance Information
Typical Application
SEL0
VSSRF
VSSRF
ANT
VDDRF
VDDBB
SWEN
REFOSC
SEL1
CAGC
WAKEB
SHUT
CTH
NC
DO
VSSBB
0.047μF
4.85MHz
(ceramic resonator)
Data
Output
MICRF004
4.7μF
+5V
150MHz 1200b/s On-Off Keyed Receiver
Features
Complete VHF receiver on a monolithic chip
140MHz to 200MHz frequency range
>200 meters typical range with monopole antenna
2.5kb/s sweep- and 10kb/s fixed-mode data rates
Automatic tuning, no manual adjustment
No filters or inductors required
Low 240
μ
A operating supply current at 150MHz
(10:1 duty cycle)
Shutdown mode for >100:1 duty-cycle operation
Wakeup for enabling decoders and microprocessors
Very low RF antenna reradiation
CMOS logic interface for standard ICs
Extremely low external part count
Applications
Automotive remote keyless entry
Long range RF identification
Remote fan and light control
Garage door and gate openers
Ordering Information
Part Number
MICRF004BM
MICRF004BN
8-pin versions available. See “Custom 8-Pin Options,” following page.
Junction Temp. Range
–40
°
C to +85
°
C
–40
°
C to +85
°
C
Package
16-Lead SOP
16-Pin DIP
Micrel, Inc.
1849 Fortune Drive
San Jose, CA 95131
USA
tel + 1 (408) 944-0800
fax + 1 (408) 944-0970
http://www.micrel.com
QwikRadio is a trademark of Micrel, Inc.
General Description
The MICRF004 QwikRadio VHF receiver is a single-chip
OOK (on-off keyed) receiver IC for remote wireless applica-
tions. This device is a true single-chip, “antenna-in, data-out”
device. All RF and IF tuning is accomplished automatically
within the IC which eliminates manual tuning production
costs and results in a highly reliable, extremely low-cost
solution for high-volume wireless applications.
The MICRF004 is extremely easy to apply, minimizing design
and production costs, and improving time to market. The
MICRF004 provides two fundamental modes of operation,
fixed and sweep.
In fixed mode, the device functions as a conventional super-
heterodyne receiver with an internal local oscillator operating
at a single frequency based on an external reference crystal
or clock. Fixed mode is for use with accurately-controlled
transmitters utilizing crystal or SAW (surface acoustic wave)
resonators.
In sweep mode, the MICRF004 sweeps the internal local
oscillator at rates greater than the baseband data rate. This
effectively broadens the RF bandwidth of the receiver to a
value equivalent to conventional superregenerative receiv-
ers. This allows the MICRF004 to operate with less expensive
LC transmitters without additional components or tuning,
even though the receiver topology is still superheterodyne. In
this mode the reference crystal can be replaced with a less
expensive
±
0.5% ceramic resonator.
The MICRF004 features a shutdown control, which may be
used for duty-cycled operation, and a wake-up output, which
provides a logical indication of an incoming RF signal. These
features make the MICRF004 ideal for low- and ultra-low-
power applications, such as RKE (remote keyless entry) and
RFID (RF identification).
Since all post-detection (demodulator) data filtering is pro-
vided on the MICRF004, no external filters are required. One
of the four internal filter bandwidths must be externally
selected based on data rate and code modulation format.
Bandwidths range in binary steps, from 0.55kHz to 4.4kHz
(sweep mode) or 1.1kHz to 8.8kHz (fixed mode).
相關PDF資料 |
PDF描述 |
|---|---|
| MICRF004BM | QwikRadio⑩ Low-Power VHF Receiver Advance Information |
| MICRF004BN | QwikRadio⑩ Low-Power VHF Receiver Advance Information |
| MICRF005 | 115kbps, 800MHz - 1GHz UHF Receiver |
| MICRF005BM | 115kbps, 800MHz - 1GHz UHF Receiver |
| MICRF501BLQ | 300MHz to 600MHz RadioWire⑩ RF Transceiver |
相關代理商/技術參數 |
參數描述 |
|---|---|
| MICRF004BM | 制造商:Rochester Electronics LLC 功能描述:- Bulk 制造商:RF Micro Devices Inc 功能描述: |
| MICRF004BN | 制造商:MICREL 制造商全稱:Micrel Semiconductor 功能描述:QwikRadio⑩ Low-Power VHF Receiver Advance Information |
| MICRF005 | 制造商:MICREL 制造商全稱:Micrel Semiconductor 功能描述:115kbps, 800MHz - 1GHz UHF Receiver |
| MICRF005BM | 功能描述:IC RECEIVER UHF 900MHZ 14SOIC RoHS:否 類別:RF/IF 和 RFID >> RF 接收器 系列:- 產品培訓模塊:Lead (SnPb) Finish for COTS 產品變化通告:Product Discontinuation 09/Jan/2012 標準包裝:50 系列:* 頻率:850MHz ~ 2.175GHz 靈敏度:- 數據傳輸率 - 最大:- 調制或協議:- 應用:* 電流 - 接收:* 數據接口:PCB，表面貼裝 存儲容量:- 天線連接器:PCB，表面貼裝 特點:- 電源電壓:4.75 V ~ 5.25 V 工作溫度:0°C ~ 85°C 封裝/外殼:40-WFQFN 裸露焊盤 供應商設備封裝:40-TQFN-EP（6x6） 包裝:托盤 |
| MICRF005BM TR | 功能描述:IC RECEIVER UHF 900MHZ 14-SOIC RoHS:否 類別:RF/IF 和 RFID >> RF 接收器 系列:- 產品培訓模塊:Lead (SnPb) Finish for COTS 產品變化通告:Product Discontinuation 09/Jan/2012 標準包裝:50 系列:* 頻率:850MHz ~ 2.175GHz 靈敏度:- 數據傳輸率 - 最大:- 調制或協議:- 應用:* 電流 - 接收:* 數據接口:PCB，表面貼裝 存儲容量:- 天線連接器:PCB，表面貼裝 特點:- 電源電壓:4.75 V ~ 5.25 V 工作溫度:0°C ~ 85°C 封裝/外殼:40-WFQFN 裸露焊盤 供應商設備封裝:40-TQFN-EP（6x6） 包裝:托盤 |
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