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RF2945 参数 Datasheet PDF下载

RF2945图片预览
型号: RF2945
PDF下载: 下载PDF文件 查看货源
内容描述: 868分之433 / 915MHZ FSK / ASK / OOK收发器 [433/868/915MHZ FSK/ASK/OOK TRANSCEIVER]
分类和应用:
文件页数/大小: 24 页 / 744 K
品牌: RFMD [ RF MICRO DEVICES ]
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RF2945
11
Typical Applications
• Wireless Meter Reading
• Keyless Entry Systems
• 433, 868 and 915MHz ISM Band Systems
• Wireless Data Transceiver
• Wireless Security Systems
• Battery-Powered Portable Devices
433/868/915MHZ FSK/ASK/OOK TRANSCEIVER
Product Description
The RF2945 is a monolithic integrated circuit intended for
use as a low cost FM transceiver. The device is provided
in 32-lead plastic LQFP packaging and is designed to be
used with a PLL IC to provide a fully functional FM trans-
ceiver. The chip is intended for digital (ASK, FSK, OOK)
applications in the North American 915MHz ISM band
and European 433/868MHz ISM bands. The integrated
VCO has a buffered output to feed the RF signal back to
the PLL IC to form the frequency synthesizer. Internal
decoding of the RX ENABL and TX ENABL lines allow for
half duplex operation as well as turning on the VCO to
give the synthesizer time to settle and complete power
downmode. The DATA REF line allows the use of an
external capacitor to control the DC level at the adaptive
Data Slicer input for setting the bit decision threshold.
Optimum Technology Matching® Applied
7.00
+ 0.20 sq.
0.15
0.05
-A-
0.50
0.22
+ 0.05
1.40
+ 0.05
Dimensions in mm.
5.00
+ 0.10 sq.
7° MAX
0° MIN
0.60
+ 0.15
0.10
0.127
ü
Si BJT
Package Style: LQFP-32_5x5
GaAs HBT
SiGe HBT
DATA OUT
RX ENABL
VCO OUT
LVLADJ
GaAs MESFET
Si CMOS
RESNTR+
Si Bi-CMOS
Features
• Fully Monolithic Integrated Transceiver
• 2.4V to 5.0V Supply Voltage
• Narrowband and Wideband FSK
• 300MHz to 1000MHz Frequency Range
• 10dB Cascaded Noise Figure
• 10mW Output Power With Power Control
11
TRANSCEIVERS
32
31
30
29
28
27
GND4
VCC3
VCC1
26
25
TX ENABL
1
Control
Logic
Gain
Control
24 RESNTR-
TX OUT
GND2
RX IN
GND1
LNA OUT
GND3
MIX IN
2
3
4
5
6
7
8
PA
23
22
MOD IN
DATA REF
21 DEMOD IN
20 GND6
19 IF2 BP-
Linear
RSSI
LNA
18
17
IF2 BP+
IF2 IN
Ordering Information
RF2945
RF2945 PCBA-L
RF2945 PCBA-M
RF2945 PCBA-H
433/868/915MHz FSK/ASK/OOK Transceiver
Fully Assembled Evaluation Board (433MHZ)
Fully Assembled Evaluation Board (868MHZ)
Fully Assembled Evaluation Board (915MHz)
Tel (336) 664 1233
Fax (336) 664 0454
http://www.rfmd.com
9
GND5
10
MIX OUT+
11
VBG
12
RSSI
13
IF1 IN
14
IF1 BP+
15
IF1 BP-
16
IF1 OUT
Functional Block Diagram
RF Micro Devices, Inc.
7628 Thorndike Road
Greensboro, NC 27409, USA
Rev A10 000919
11-215