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PDF TH71082 Data sheet ( Hoja de datos )
| Número de pieza | TH71082 | |
| Descripción | 868/915MHz ASK Transmitter / LO Source | |
| Fabricantes | Melexis | |
| Logotipo |  |
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TH71082
868/915MHz
ASK Transmitter / LO Source
Features
! Fully integrated, PLL-stabilized VCO
! Flexible frequency range from 800 MHz to 930 MHz
! ASK achieved by on/off keying of internal
power amplifier
! FM possible with external varactor
! Wide power supply range from 2.2 V to 5.5 V
! High over-all frequency accuracy
! Very low standby current
! Adjustable output power range from
-18 dBm to -2 dBm
! Adjustable current consumption from
6.2 mA to 12.5 mA
! Single-ended RF output
! Clock output for µC drive
! Conforms to EN 300 220 and similar
standard
Ordering Information
Part No.
TH71082
Temperature Range
-40 C° to 85 °C
Package
SOIC8
Application Examples
! Keyless car and central locking
! Low-power telemetry
! Alarm and security systems
! General digital data transmission
! General analog audio signal transmission
! Local oscillator signal generation
Pin Description
LF 1
RO 2
ENTX 3
CKOUT 4
TH71082
8 VEE
7 OUT
6 VCC
5 PS/DATA
TH71082 Data Sheet
3901071082
Page 1 of 10
Dec. 2001
Rev. 004
1 page  
Technical Data
TH71082
868/915MHz
ASK Transmitter / LO Source
Absolute Maximum Ratings
Parameter
Symbol
Condition
Min
Max
Unit
Supply voltage
Vcc
-0.3 7.0 V
Input voltage
Vin ENTX pin
-0.3
VCC+0.3
V
Input current
Iin ENTX pin
-1.0 1.0 mA
Storage temperature
TSTG
-40 150 °C
Electrostatic discharge
VESD
human body model,
MIL STD 833D
method 3015.7
-1.0
+1.0
kV
Normal Operating Conditions
Parameter
Supply voltage
Operating temperature
XOSC frequency
VCO frequency
Clock frequency
Symbol
Vcc
Ta
fref
fc
fclk
Condition
set by the crystal
fc = 32 • fref
fclk = fref / 4
Min
2.2
-40
25
800
3.12
Max
Unit
5.5 V
85 °C
29 MHz
930 MHz
3.62
MHz
DC Characteristics
all parameters under normal operating conditions, unless otherwise stated;
typical values at Ta = 23 °C and Vcc = 3 V
Parameter
Symbol
Condition
Min
Standby current
Operating current
Input HIGH voltage
Input LOW voltage
Input current
Pull down current
ISBY
Icc
VHIGH
VLOW
Iin
Ipd
ENTX=0
ENTX=1, VPS=1.1V
ENTX pin
ENTX pin
ENTX=0
ENTX=1
8
0.7*Vcc
-0.3
-1
2
Typ
0.05
10
8
Max
0.1
11
Vcc+0.3
0.3*Vcc
1
15
Unit
µA
mA
V
V
µA
µA
TH71082 Data Sheet
3901071082
Page 5 of 10
Dec. 2001
Rev. 004
5 Page | ||
| Páginas | Total 10 Páginas | |
| PDF Descargar | [ Datasheet TH71082.PDF ] | |
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