TH71111
868/915MHz
FSK/FM/ASK Receiver
! Single-conversion superhet architecture for low external component count
! FSK for digital data and FM reception for analog signal transmission
! FSK/FM demodulation with phase-coincidence demodulator
! Low current consumption in active mode and very low standby current
! Switchable LNA gain for improved dynamic range
! RSSI allows signal strength indication and ASK detection
! 32-pin Low profile Quad Flat Package (LQFP)
Ordering Information
Part No.
Temperature Code
Package Code
Delivery Form
Part Number
TH71111
Temperature Code
E (-40 °C to 85 °C)
Package Code
250 pc/tray
2000 pc/T&R
NE (LQFP32)
Application Examples
Pin Description
" General digital data transmission
" Tire Pressure Monitoring Systems (TPMS)
" Remote Keyless Entry (RKE)
" Wireless access control
" Alarm and security systems
" Garage door openers
" Remote Controls
" Home and building automation
! Low-power telemetry systems
24
17
25
16
VEE_RO
RO
VCC_PLL
ENRX
LF
VEE_LNA
IN_LNA
OUT_IFA
VCC_IF
FBC2
FBC1
IN_IFA
TH71111
VEE_IF
OUT_MIX2
VCC_LNA
32
9
1
8
General Description
The TH71111 FSK/FM/ASK single-conversion superheterodyne receiver IC is designed for applications in
the European 868 MHz industrial-scientific-medical (ISM) band, according to the EN 300 220
telecommunications standard. It can also be used for any other system with carrier frequencies ranging from
800 MHz to 930 MHz (e.g. for applications according to FCC part 15).
39010 71111
Rev. 013
Page 1 of 22
Data Sheet
June/07
MELEXIS [ Melexis Microelectronic Systems ]
