TH7110 Datasheet PDF - ETC
Part Number | TH7110 | |
Description | 315/433MHz FSK/FM/ASK Receiver | |
Manufacturers | ETC | |
Logo | ||
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TH7110
315/433MHz
FSK/FM/ASK Receiver
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.
TH7110
Temperature Range
-40 °C to 85 °C
Package
LQFP44
Application Examples
! General digital and analog 315 MHz or 433 MHz ISM band usage
! Low-power telemetry
! Alarm and security systems
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! Keyless car and central locking
! Pagers
Technical Data Overview
! Input frequency range: 300 MHz to 450 MHz
! Power supply range: 2.5 V to 5.5 V for double conversion and 2.7 V to 5.5 V for single conversion
! Temperature range: -40 °C to +85 °C
! Operating current: 6.5 mA at low gain and 8.2 mA at high gain mode
! Standby current: < 100 nA
! Sensitivity: -111 dBm 1) with 40 kHz second IF filter BW (incl. SAW front-end filter loss)
! Sensitivity: -104 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 2nd 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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TH7110 Data Sheet
3901007110
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Page 1 of 20
Nov. 2001
Rev. 005
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TH7110
315/433MHz
FSK/FM/ASK Receiver
Pin Definition and Description
Pin No. Name
1 VREF
I/O Type
analog
output
Functional Schematic
VREF
1
60k
Description
reference voltage output,
approx. 1.23V
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4 OUT_LNA analog
output
42 IN_LNA
analog
input
2 VEE_LNAC ground
3 GAIN_LNA analog
input
IN_LNA
42
5k
GAIN_LNA
3
400Ω
OUT_LNA
4
VEE_LNAC
2
LNA open-collector output,
to be connected to external
LC tank that resonates at RF
LNA input,
approx. 26Ω single-ended
ground of LNA core
(cascode)
LNA gain control (CMOS
input with hysteresis)
5 VEE_LNA ground
6 IN_MIX1
analog
input
7 CAP_MIX1 analog I/O
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IN_MIX1
6
CAP_MIX1
7
13Ω
13Ω
500µA
40µA
330Ω
LNA biasing ground
MIX1 input, approx. 33Ω
single-ended
connection for MIX1
blocking capacitor
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8 VEE_MIX1 ground
9 IF1P
10 IF1N
analog I/O
IF1P
9
analog I/O
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TH7110 Data Sheet
3901007110
DataSheet4 U .com
VCC
20p 20p
VEE
2x500µA
VEE
MIX1 ground
open-collector output, to be
IF1N connected to external LC
tank that resonates at first IF
10
open-collector output, to be
connected to external LC
tank that resonates at first IF
Page 5 of 20
Nov. 2001
Rev. 005
Preview 5 Page |
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