參數(shù)資料
型號(hào)： TH7111
廠商： Electronic Theatre Controls, Inc.
英文描述： FSK /FM/ASK Receiver
中文描述： FSK信號(hào)/調(diào)頻/ ASK接收機(jī)
文件頁(yè)數(shù)： 1/20頁(yè)
文件大小： 705K
代理商： TH7111
TH7111
868/915MHz
FSK/FM/ASK Receiver
TH7111 Data Sheet
3901007111
Page 1 of 20
Nov. 2001
Rev. 005
Features
!
Double superhet architecture for high degree of image rejection
!
FSK for digital data and FM reception for analog signal transmission
!
FM/FSK demodulation either with phase-coincidence or PLL demodulator
!
Low current consumption in active mode and very low standby current
!
Switchable LNA gain for improved dynamic range
!
AFC feature allows wide carrier frequency acceptance range
!
RSSI allows signal strength indication and ASK detection
!
Surface mount package LQFP44
Ordering Information
Part No.
Temperature Range
Package
TH7111
-40 °C to 85 °C
LQFP44
Applic ation Examples
!
General digital and analog 868 MHz or 915 MHz ISM band usage
!
Low-power telemetry
!
Alarm and security systems
!
Keyless car and central locking
!
Pagers
T ec hnic al Data Overview
!
Input frequency range: 800 MHz to 930 MHz
!
Power supply range: 2.5 V to 5.5 V for double conversion and 3.3 V to 5.5 V for single conversion
!
Temperature range: -40 °C to +85 °C
!
Operating current: 7.5 mA at low gain and 9.2 mA at high gain mode
!
Standby current: < 100 nA
!
Sensitivity: -109 dBm
1)
with 40 kHz second IF filter BW (incl. SAW front-end filter loss)
!
Sensitivity: -102 dBm
2)
with 150 kHz second IF filter BW (incl. SAW front-end filter loss)
!
Range of first IF: 10 MHz to 80 MHz
!
Range of second IF: 455 kHz to 21.4 MHz
!
Maximum input level: –10 dBm at ASK and 0 dBm at FSK
!
Image rejection: > 65 dB (e.g. with SAW front-end filter and at 10.7 MHz 2
nd
IF)
!
Spurious emission: < -70 dBm
!
Input frequency acceptance:
±
50 kHz (with AFC option)
!
RSSI range: 70 dB
!
Frequency deviation range:
±
5 kHz to
±
120 kHz
!
Maximum data rate: 80 kbit/s NRZ
!
Maximum analog modulation frequency: 15 kHz
1)
at
±
8 kHz FSK deviation, BER = 3
10
-3
and phase-coincidence demodulation
2)
at
±
50 kHz FSK deviation, BER = 3
10
-3
and phase-coincidence demodulation
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