TDK5100 Fast Delivery |IC PHOENIX CO.,LIMITED

TDK5100 ,ASK/FSK Transmitter 868/433 MHzcharacteristics.Terms of delivery and rights to change design reserved.Due to technical requirement ..
TDK5101F ,315 MHz ASK/FSK Transmitter in 10-pin Packagecharacteristics.Terms of delivery and rights to change design reserved.Due to technical requirement ..
TDK5110 ,ASK/FSK Transmitter 868/433 MHzcharacteristics.Terms of delivery and rights to change design reserved.Due to technical requirement ..
TDK5111 ,ASK/FSK Transmitter 315 MHzcharacteristics.Terms of delivery and rights to change design reserved.Due to technical requirement ..
TDK5111F , 315 MHz ASK/FSK Transmitter in 10-pin Package
TDK5111F , 315 MHz ASK/FSK Transmitter in 10-pin Package
TK71220MTL ,LOW DROPOUT REGULATOR
TK71230MTL ,LOW DROPOUT REGULATOR
TK71235M ,LOW DROPOUT REGULATOR
TK71245MTL/J45 ,LOW DROPOUT REGULATOR
TK71250MTL ,LOW DROPOUT REGULATOR
TK71315MTL/H15 ,LOW DROPOUT REGULATOR

TDK5100
ASK/FSK Transmitter 868/433 MHz
Wireless Components
ASK/FSK Transmitter 868/433 MHz
TDK 5100 Version 1.0
Specification October 2002
Edition 31.10.2002
Published by Infineon Technologies AG,
Balanstraße 73,
81541 München
© InfineonTechnologiesAG 2002.
All Rights Reserved.
Attention please!
As far as patents or other rights of third parties are concerned, liability is only assumed for components, not for applications, processes and circuits im-
plemented within components or assemblies.
The information describes the type of component and shall not be considered as assured characteristics.
Terms of delivery and rights to change design reserved.
Due to technical requirements components may contain dangerous substances. For information on the types in question please contact your nearest
InfineonTechnologies Office.
InfineonTechnologiesAG is an approved CECC manufacturer.
Packing
Please use the recycling operators known to you. We can also help you – get in touch with your nearest sales office. By agreement we will take packing
material back, if it is sorted. You must bear the costs of transport.
For packing material that is returned to us unsorted or which we are not obliged to accept, we shall have to invoice you for any costs incurred.
Components used in life-support devices or systems must be expressly authorized for such purpose!
Critical components1 of the InfineonTechnologiesAG, may only be used in life-support devices or systems2 with the express written approval of the
InfineonTechnologiesAG.A critical component is a component used in a life-support device or system whose failure can reasonably be expected to cause the failure of that life-
support device or system, or to affect its safety or effectiveness of that device or system.Life support devices or systems are intended (a) to be implanted in the human body, or (b) to support and/or maintain and sustain human life. If they
fail, it is reasonable to assume that the health of the user may be endangered.
Product Info
Product Info
General DescriptionThe TDK 5100 is a single chip ASK/
FSK transmitter for the frequency
bands 433-435 and 868-870 MHz. The
IC offers a high level of integration and
needs only a few external components.
The device contains a fully integrated
PLL synthesizer and a high efficiency
power amplifier to drive a loop antenna.
A special circuit design and an unique
power amplifier design are used to
save current consumption and there-
fore to save battery life. Additionally
features like a power down mode, a low
power detect, a selectable crystal oscil-
lator frequency and a divided clock out-
put are implemented. The IC can be
used for both ASK and FSK modula-
tion.
Features-fully integrated frequency synthe-
sizerVCO without external componentsASK and FSK modulation switchable frequency range
433-435 MHz / 868-870 MHzhigh efficiency power amplifier
(typically 5 dBm / 2 dBm)low supply current (typically 7mA)voltage supply range 2.1 - 4 Vtemperature range −40 ... +125°Cpower down modelow voltage sensorselectable crystal oscillator
6.78 MHz / 13.56 MHzprogrammable divided clock output
for µClow external component count
Applications-Keyless entry systemsRemote control systemsAlarm systemsCommunication systems
Ordering Information
available on tape and reel
Product Description1.1Overview. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1-2
1.2Applications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1-2
1.3Features . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1-2
1.4Package Outlines . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1-3
Product Description
1.1Overview
The TDK 5100 is a single chip ASK/FSK transmitter for the frequency bands
433-435 MHz and 868-870 MHz. The IC offers a high level of integration and
needs only a few external components. The device contains a fully integrated
PLL synthesizer and a high efficiency power amplifier to drive a loop antenna.
A special circuit design and an unique power amplifier design are used to save
current consumption and therefore to save battery life. Additional features like
a power down mode, a low power detect, a selectable crystal oscillator fre-
quency and a divided clock output are implemented. The IC can be used for
both ASK and FSK modulation.
1.2ApplicationsKeyless entry systemsRemote control systemsAlarm systemsCommunication systems
1.3Featuresfully integrated frequency synthesizerVCO without external componentsASK and FSK modulationswitchable frequency range 433-435 MHz / 868-870 MHzhigh efficiency power amplifier (typically 5 dBm / 2 dBm) low supply current (typically 7 mA)voltage supply range 2.1 - 4 Vtemperature range −40°C ... 125°Cpower down modelow voltage sensorselectable crystal oscillator 6.78 MHz / 13.56 MHzprogrammable divided clock output for µClow external component count
1.4
Functional Description2.1Pin Configuration. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2-2
2.2Pin Definitions and Functions . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2-3
2.3Functional Block diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2-7
2.4Functional Blocks. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2-8
2.4.1PLL Synthesizer. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2-8
2.4.2Crystal Oscillator . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2-8
2.4.3Power Amplifier . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2-9
2.4.4Low Power Detect . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2-10
2.4.5Power Modes. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2-10
2.4.5.1Power Down Mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2-10
2.4.5.2PLL Enable Mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2-10
2.4.5.3Transmit Mode. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2-10
2.4.6Recommended timing diagrams for ASK- and FSK-Modulation . .2-12
Functional Description
2.1Pin Configuration
Pin_config.wmf
Figure 2-1IC Pin Configuration
Functional Description
2.2Pin Definitions and Functions
Functional Description
Functional Description
Functional DescriptionIndicated voltages and currents apply for PLL Enable Mode and Transmit Mode.
In Power Down Mode, the values are zero or high-ohmic.
Functional Description
2.3Functional Block diagram
Block_diagram.wmf
Figure 2-2Functional Block diagram
Functional Description
2.4Functional Blocks
2.4.1 PLL Synthesizer
The Phase Locked Loop synthesizer consists of a Voltage Controlled Oscillator
(VCO), an asynchronous divider chain, a phase detector, a charge pump and a
loop filter. It is fully implemented on chip. The tuning circuit of the VCO consist-
ing of spiral inductors and varactor diodes is on chip, too. Therefore no addi-
tional external components are necessary. The nominal center frequency of the
VCO is 869 MHz. The oscillator signal is fed both, to the synthesizer divider
chain and to the power amplifier. The overall division ratio of the asynchronous
divider chain is 128 in case of a 6.78 MHz crystal or 64 in case of a 13.56 MHz
crystal and can be selected via CSEL (pin 16). The phase detector is a Type IV
PD with charge pump. The passive loop filter is realized on chip.
2.4.2 Crystal Oscillator
The crystal oscillator operates either at 6.78 MHz or at 13.56 MHz.
The reference frequency can be chosen by the signal at CSEL (pin 16).
For both quartz frequency options, 847.5 kHz or 3.39 MHz are available as out-
put frequencies of the clock output CLKOUT (pin 8) to drive the clock input of a
micro controller.
The frequency at CLKOUT (pin 8) is controlled by the signal at CLKDIV (pin 9) Low:Voltage at pin < 0.2 VOpen:Pin openLow:Voltage at pin < 0.2 VOpen:Pin open
Functional Description
To achieve FSK transmission, the oscillator frequency can be detuned by a
fixed amount by switching an external capacitor via FSKOUT (pin 11).
The condition of the switch is controlled by the signal at FSKDTA (pin 7).
2.4.3 Power Amplifier
In case of operation in the 868-870 MHz band, the power amplifier is fed directly
from the voltage controlled oscillator. In case of operation in the 433-435 MHz
band, the VCO frequency is divided by 2. This is controlled by FSEL (pin 15) as
described in the table below.
The Power Amplifier can be switched on and off
by the signal at ASKDTA (pin 6).
The Power Amplifier has an Open Collector output at PAOUT (pin 14) and
requires an external pull-up coil to provide bias. The coil is part of the tuning and
matching LC circuitry to get best performance with the external loop antenna.
To achieve the best power amplifier efficiency, the high frequency voltage swing
at PAOUT (pin 14) should be twice the supply voltage.
The power amplifier has its own ground pin PAGND (pin 13) in order to reduce
the amount of coupling to the other circuits.Low:Voltage at pin < 0.5 VOpen:Pin openHigh:Voltage at pin > 1.5 VLow:Voltage at pin < 0.5 VOpen:Pin openLow:Voltage at pin < 0.5 VOpen:Pin openHigh:Voltage at pin > 1.5 V
Functional Description
2.4.4 Low Power Detect
The supply voltage is sensed by a low power detector. When the supply voltage
drops below 2.15 V, the output LPD (pin 2) switches to the low-state. To mini-
mize the external component count, an internal pull-up current of 40 µA gives
the output a high-state at supply voltages above 2.15 V.
The output LPD (pin 2) can either be connected to ASKDTA (pin 6) to switch off
the PA as soon as the supply voltage drops below 2.15 V or it can be used to
inform a micro-controller to stop the transmission after the current data packet.
2.4.5 Power Modes
The IC provides three power modes, the POWER DOWN MODE, the PLL
ENABLE MODE and the TRANSMIT MODE.
2.4.5.1 Power Down Mode
In the POWER DOWN MODE the complete chip is switched off.
The current consumption is typically 0.3 nA at 3 V 25°C.
This current doubles every 8°C. The values for higher temperatures are
typically 14 nA at 85°C and typically 600 nA at 125°C.
2.4.5.2 PLL Enable Mode
In the PLL ENABLE MODE the PLL is switched on but the power amplifier is
turned off to avoid undesired power radiation during the time the PLL needs to
settle. The turn on time of the PLL is determined mainly by the turn on time of
the crystal oscillator and is less than 1 msec when the specified crystal is used.
The current consumption is typically 3.5 mA.
2.4.5.3 Transmit Mode
In the TRANSMIT MODE the PLL is switched on and the power amplifier is
turned on too.
The current consumption of the IC is typically 7 mA when using a proper trans-
forming network at PAOUT, see Figure 3-1.
2.4.5.4 Power mode control
The bias circuitry is powered up via a voltage V > 1.5 V at the pin PDWN (pin 1).
When the bias circuitry is powered up, the pins ASKDTA and FSKDTA are
pulled up internally.
Forcing the voltage at the pins low overrides the internally set state.
Alternatively, if the voltage at ASKDTA or FSKDTA is forced high externally, the
PDWN pin is pulled up internally via a current source. In this case, it is not nec-
Functional Description
The principle schematic of the power mode control circuitry is shown in
Figure 3-5.
Power_Mode.wmf
Figure 2-5Power mode control circuitry
Table 3-8 provides a listing of how to get into the different power modes
Other combinations of the control pins PDWN, FSKDTA and ASKDTA are not
recommended. Low:Voltage at pin < 0.7 V (PDWN)
Voltage at pin < 0.5 V (FSKDTA, ASKDTA)Open:Pin openHigh:Voltage at pin > 1.5 V
Functional Description
2.4.6 Recommended timing diagrams for ASK- and FSK-Modulation
ASK Modulation using FSKDTA and ASKDTA, PDWN not connected
ASK_mod.wmf
Figure 2-6ASK Modulation
FSK Modulation using FSKDTA and ASKDTA, PDWN not connected
FSK_mod.wmf
Figure 2-7FSK Modulation
Functional Description
Alternative ASK Modulation, FSKDTA not connected.
Alt_ASK_mod.wmf
Figure 2-8Alternative ASK Modulation
Alternative FSK Modulation
Alt_FSK_mod.wmf
Figure 2-9Alternative FSK Modulation
Applications3.150 Ohm-Output Testboard Schematic . . . . . . . . . . . . . . . . . . . . . . . .3-2
3.250 Ohm-Output Testboard Layout . . . . . . . . . . . . . . . . . . . . . . . . . . .3-3
3.3Bill of material (50 Ohm-Output Testboard) . . . . . . . . . . . . . . . . . . . .3-4
3.450 Ohm-Output Testboard: Measurement results . . . . . . . . . . . . . . .3-5
3.5Application Hints on the Crystal Oscillator . . . . . . . . . . . . . . . . . . . . .3-7
3.6Design Hints on the Clock Output (CLKOUT). . . . . . . . . . . . . . . . . . .3-9
3.7Application Hints on the Power-Amplifier . . . . . . . . . . . . . . . . . . . . .3-10

Partno	Mfg	Dc	Qty	Available	Descript
TDK5100	INFINEON	N/a	25	avai	ASK/FSK Transmitter 868/433 MHz