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EVB7122-915-FSK-C 参数 Datasheet PDF下载

EVB7122-915-FSK-C图片预览
型号: EVB7122-915-FSK-C
PDF下载: 下载PDF文件 查看货源
内容描述: 27〜 930MHz收发器评估板说明 [27 to 930MHz Transceiver Evaluation Board Description]
分类和应用:
文件页数/大小: 24 页 / 800 K
品牌: MELEXIS [ Melexis Microelectronic Systems ]
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EVB7122
27 to 930MHz Transceiver
Evaluation Board Description
Features
!
Single chip solution with only a few external
components
!
Stand-alone fixed-frequency user mode
!
Programmable multi-channel user mode
!
Low current consumption in active mode and
very low standby current
!
PLL-stabilized RF VCO (LO) with internal
varactor diode
!
Lock detect output in programmable
user mode
!
On-chip AFC for extended input frequency
acceptance range
!
FSK for digital data or FM for analog signal
reception
!
FSK/ASK mode selection
!
RSSI output for signal strength indication and
ASK reception
!
ASK detection normal or with peak detector
!
Switchable LNA gain for improved dynamic
range
!
Automatic PA turn-on after PLL lock
!
ASK modulation achieved by PA on/off keying
!
3wire bus serial control interface
!
EVB comes with a cable to connect to a PC’s
LPT port
!
EVB programming software is available on
Melexis web site
Ordering Information
Part No. (see paragraph 6)
EVB7122-315-FSK-C
EVB7122-433-FSK-C
EVB7122-868-FSK-C
EVB7122-915-FSK-C
Note 1:
EVB default population is FSK, ASK modifications according to section 4.2 and 4.3.
Note 2:
EVB7122 is applicable for devices TH7122 and TH71221.
Application Examples
!
General bi-directional half duplex digital data
RF signaling or analog signal communication
!
Tire Pressure Monitoring Systems (TPMS)
!
Remote Keyless Entry (RKE)
!
Low-power telemetry systems
!
Alarm and security systems
!
Wireless access control
!
Garage door openers
!
Networking solutions
!
Active RFID tags
!
Remote controls
!
Home and building automation
Evaluation Board Example
General Description
The TH7122 is a single chip FSK/FM/ASK transceiver IC. It is designed to operate in low-power multi-
channel programmable or single-channel stand-alone, half-duplex data transmission systems. It can be used
for applications in automotive, industrial-scientific-medical (ISM), short range devices (SRD) or similar
applications operating in the frequency range of 300 MHz to 930 MHz. In programmable user mode, the
transceiver can operate down to 27 MHz by employing an external VCO varactor diode.
39012 07122 02
Rev. 005
Page 1 of 24
EVB Description
June/07