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Wireless Components
ASK/FSK Transmitter 868/433 MHz TDA 5101 Version 1.3
Specification March 2000
Revision History Current Version: 1.3 as of 09.03.00 Previous Version: 1.2, November 1999 Page (in previous Version) Page (in current Version) Subjects (major changes since last revision)
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Edition 09.03.00 Published by Infineon Technologies AG, Balanstrae 73, 81541 Munchen (c) Infineon Technologies AG March 2000. 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 implemented 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 Infineon Technologies Office. Infineon Technologies AG 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 Infineon Technologies AG, may only be used in life-support devices or systems2 with the express written approval of the Infineon Technologies AG. 1 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 lifesupport device or system, or to affect its safety or effectiveness of that device or system. 2 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.
TDA 5101
Product Info
Productinfo
General Description Package The TDA5101 is a single chip ASK/FSK transmitter for the frequency 314-316 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 live. Additionally features like a power down mode, a low power detect and a divided clock output are implemented. The IC can be used for both ASK and FSK modulation. fully integrated frequency synthesizer VCO without external components high efficiency power amplifier frequency range 314-316 MHz ASK/FSK modulation low supply current (typically < 7mA) voltage supply range 2.1 - 4 V power down mode low voltage sensor low external component count
Remote control systems
Ordering Information
Type TDA 5101 available on tape and reel Ordering Code Package P-TSSOP-16
Q67036-A1120
Wireless Components
Product Info

Applications
Keyless entry systems

Features
Alarm systems Communication systems
Specification, March 2000
1
1 2 2.1 2.2 2.3 2.4 3 3.1 3.2 3.3 3.4 4 4.1 4.2 4.3 4.4 4.5 4.6 4.7 5 5.1 5.1.1 5.1.2 5.1.3
Table of Contents
Table of Contents . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-1 Product Description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-1 Overview. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-2 Applications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-2 Features . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-2 Package Outlines . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-3 Functional Description. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-1 Pin Configuration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-2 Pin Definition and Function. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-3 Block diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-4 Functional Blocks . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-5 Applications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-1 Circuits . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-2 Test Board Layouts. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-3 Bill of material (Testboard) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-4 Hints . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-5 Application Circuit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-8 Test Board Layouts. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-9 Bill of material (Application Circuit) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-10 Reference . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-1 Electrical Data. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-2 Absolute Maximum Rating . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-2 Operating Range . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-2 AC/DC Characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-3
2
Product Description
Contents of this Chapter 2.1 2.2 2.3 2.4 Overview. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-2 Applications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-2 Features . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-2 Package Outlines . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-3
TDA 5101
Product Description
2.1 Overview
The TDA5101 is a single chip ASK/FSK transmitter for the frequency band from 314 to 316 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 live. Additionally features like a power down mode, a low power detect and a divided clock output are implemented. The IC can be used for both ASK and FSK modulation.
2.2 Applications
Keyless entry systems Remote control systems Alarm systems Communication systems
2.3 Features
Wireless Components

fully integrated frequency synthesizer VCO without external components high efficiency power amplifier frequency range 314-316 MHz ASK/FSK modulation low supply current (typically < 7mA) voltage supply range 2.1 - 4 V power down mode low voltage sensor low external component count
2-2
Specification, March 2000
TDA 5101
Product Description
2.4 Package Outlines
Figure 2-1
P-TSSOP-16
Wireless Components
2-3
Specification, March 2000
3
Functional Description
Contents of this Chapter 3.1 3.2 3.3 3.4 1 2 3 4 5 6 7 8 9 Pin Configuration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-2 Pin Definition and Function. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-3 Block diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-4 Functional Blocks . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-5 PLL Synthesizer . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-5 Crystal Oscillator. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-5 Power Amplifier. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-6 Low Power Detect. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-6 Power Modes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-6 Power Down Mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-7 PLL Enable Mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-7 Transmit Enable Mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-7 Recommended timing diagrams for ASK- and FSK modulation . . . . . 3-8
TDA 5101
Functional Description
3.1 Pin Configuration
PDW N
1
16
CSEL *
LPD
2
15
FSEL *
VS
3
14
PAOUT
LF
4
13
PAGND
TDA 5101
GND 5 12 FSKGND
ASKDTA
6
11
FSKOUT
FSKDTA
7
10
COSC
CLKO UT
8
9
C L K D IV
Pin_config.wmf
Figure 3-1
IC Pin Configuration
*
For applications in the 315 MHz band: CSEL always open, FSEL always shortened to ground
Wireless Components
3-2
Specification, March 2000
TDA 5101
Functional Description
3.2 Pin Definition and Function
Table 3-1 Pin Configuration Pin No. Symbol Equivalent I/O-Schematic Function
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16
PDWN LPD VS LF GND ASKDTA FSKDTA CLKOUT CLKDIV COSC FSKOUT FSKGND PAGND PAOUT FSEL * CSEL *
Power down mode Low power detect output Voltage supply Loop filter Ground Amplitude Shift Keying data input Frequency Shift Keying data input Clock output Clock divider control Crystal oscillator input Frequency Shift Keying output Frequency Shift Keying ground Power amplifier ground Power amplifier output FSEL always shortend to ground CSEL always open
*
For applications in the 315 MHz band: CSEL always open, FSEL always shortened to ground
Wireless Components
3-3
Specification, March 2000
Wireless Components
P O W ER DOW N MODE GND VS 3 5 2 LO W P O W E R D E TE C T O U TP U T 1
3.3 Block diagram
Figure 3-2
FS K D A TA IN PU T
GND
7
12
OR
A SK D a ta in p ut
Main Block Diagram
11
Power S u p p ly
L ow vo ltage Sen sor 2.2V
3-4
10 9.84 M H z
XTAL O sc PD :6 4 VCO :1 /2
Power AM P
14
PO W ER A M P L IFIE O U T PU 13 POW ER A M P LIFI GND
9
C L K D IV
:4 /1 6
LF
8 CSEL
16
4 LOOP FILTE R
15 FS E L
6 ASK D A TA IN P U T
Functional Description
Specification, March 2000
CLKOUT
PO W ER A M P L IFIE R ON
TDA 5101
Block_diagram.wmf
TDA 5101
Functional Description
3.4 Functional Blocks
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 and is fully implemented on chip. The tuning circuit of the VCO consisting of spiral inductors and varactor diodes is on chip, too. Therefore no additional external components are necessary. The nominal center frequency of the VCO is 630 MHz. The oscillator signal is fed both to the synthesizer divider chain and to the power amplifier. The overall division ratio of the asyncronous divider chain is 64. The phase detector is a Typ IV PD with charge pump. The passive loop filter is realized on chip. In all 315 MHz applications, the CSEL pin is not connected.
2. Crystal Oscillator The crystal oscillator operates at 9.84 MHz. In case of FSK transmission the oscillator frequency can be detuned by a fixed amount determined by an external capacitor via pin 7 (FSKDTA). 615 kHz or 2.40 MHz are available as a clock frequency output (CLKOUT) to drive the clock input of a micro controller. The dividing ratio is controlled by the CLKDIV pin.
Table 3-2
FSKDTA Open Shorted to ground
FSKOUT Switch OFF ON
Table 3-3 CLKDIV Shortened to ground Open
Dividing Ratio 4 16
Wireless Components
3-5
Specification, March 2000
TDA 5101
Functional Description
3. Power Amplifier In FSK transmission the power amplifier can be switched on with pin 6 (ASKDTA). In case of ASK transmission the same pin is used as the data input. The PAOUT pin is an open collector output and requires an external pull up coil to provide bias. The coil is part of the tuning and matching LC cuircit to get best performance with the external loop antenna. To achieve the best power amplifier efficiency the high frequency voltage peak to peak swing at the PAOUT pin should be two times the supply voltage. The power amplifier has its own ground pin (PAGND) in order to reduce the amount of coupling to the other circuits. In all 315 MHz applications, the pin FSEL is to connect to ground.
4. Low Power Detect The supply voltage is sensed by a low power detector. If the supply voltage drops below 2.15 V, the LPD pin (pin2) switches to low. The minimum sink current is 1 mA. To spare at most cases the external pull up resistor, an internal pull up current of 30A is implemented. A simple application of this feature is the switching off of the power amplifier via pin 6.
5. Power Modes The IC provides three power modes, the POWER DOWN MODE, the PLL ENABLE MODE and the TRANSMIT MODE. How to get in this modes is described in the table below.
Table 3-4
PDWN L H not connected;H not connected,H
FSKDTA L L;H H L;H
ASKDTA L L L H POWER DOWN MODE PLL ENABLE MODE PLL ENABLE MODE TRANSMIT MODE
If ASKDTA or FSKDTA gets high, the PDWN pin is pulled up internally via a current source as shown in the diagram below. Therefore, in most applications it is not necessary and recommended to connect the PDWN pin.
Wireless Components
3-6
Specification, March 2000
TDA 5101
Functional Description
A S K D TA PDW N OR FS K D TA FS K O U T FS K PLL ENABLE
PAOUT
PA TDA 5101
Power_Mode.wmf
Figure 3-3
Power mode
6. Power Down Mode In the POWER DOWN MODE the current consumption is less than 100nA. To switch the IC in this mode, the input pins PDWN (pin1), ASKDTA (pin6) and FSKDTA (pin7) has to be in the low state.
7. PLL Enable Mode The turn on time of the PLL is determined by the turn on time of the crystal oscillator and is typically less than 1 msec (dependent on the crystal itself). To save current consumption and to avoid undesired power radiation during this time, the power amplifier is turned off. The current consumption at this mode is typically 3.5 mA. To have the possibility to control the IC via two data lines from a micro processor, the ASK- and FSK Data inputs are connected via a "logical or" to pull up internally the PDWN input. In this case, it is recommended to leave the PDWN pin unconnected.
8. Transmit Enable Mode In the TRANSMIT ENABLE MODE the power amplifier is turned on too, and the current consumption of the IC is about 7 mA. To get in this state, the ASKDTA input is to switch to a high level.
Wireless Components
3-7
Specification, March 2000
TDA 5101
Functional Description
9. Recommended timing diagrams for ASK- and FSK modulation ASK Modulation : (Pin1 (PDWN) not connected)
Figure 3-4 ASK Modulation
FSKDTA H
L
to t
ASKDTA H
DATA
L
to m in . 1 m se c. t
FSK Modulation: (Pin1 (PDWN) not connected)
Figure 3-5 FSK Modulation
FSKDTA H
DATA
L
to t
ASKDTA H
L
to m in . 1 m se c. t
Wireless Components
3-8
Specification, March 2000
TDA 5101
Functional Description
Wireless Components
3-9
Specification, March 2000
TDA 5101
Functional Description
Wireless Components
3 - 10
Specification, March 2000
4
Applications
Contents of this Chapter 4.1 4.2 4.3 4.4 4.5 4.6 4.7 Circuits . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-2 Test Board Layouts. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-3 Bill of material (Testboard) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-4 Hints . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-5 Application Circuit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-8 Test Board Layouts. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-9 Bill of material (Application Circuit) . . . . . . . . . . . . . . . . . . . . . . . . . . 4-10
TDA 5101
Applications
4.1 Circuits
X2SM A C8 C2
C4 L1 VCC
L2
C7 C3 C6 Q1
16
15
14
13
12
11
10
0 .6 1 /2 .4 6 MHz
TDA5101
1 2 3 4 5 6 7 8 FSK C5 R1 X1SM A
VCC
T1
VCC
C1
R3A R3F R4 R2 ASK
9
50ohm_test_v5.wmf
Figure 4-1
50 testboard
Wireless Components
4-2
Specification, March 2000
TDA 5101
Applications
4.2 Test Board Layouts
Figure 4-2
Top Side of TDA 5101 (identical to TDA 5100)
Figure 4-3
Bottom Side of TDA 5101 (identical to TDA 5100)
Wireless Components
4-3
Specification, March 2000
TDA 5101
Applications
4.3 Bill of material (Testboard)
Table 4-1 Bill of material Part Value 315 MHz ASK FSK Specification
R1 R2 R3A R3F R4 C1 C2 C3 C4 C5 C6 C7 C8 L1 L2 Q3
4.7 k 12 k 15 k 15 k open 47 nF 56 pF 5.6 pF 330 pF 1 nF 8.2 pF 0= Jumper 22 pF 220 nH 56 nH 9.84375 MHz, CL=12pF 47 pF
0805, 5% 0805, 5% 0805, 5% 0805, 5% 0805, 5% 0805,X7R, 10% 0805, COG, 5% 0805, COG, 0.1 pF 0805, COG, 5% 0805,X7R, 10% 0805, COG, 0.1 pF 0805, COG, 5% 0805 0=Jumper 0805, COG, 5% TOKO LL2012-J TOKO LL2012-J Tokyo Denpa TSS-3B 9843,75 kHz Spec.No. 20-18905 TDA5101
IC1 T1 X1 X2 Taster SMA-S SMA-S
replaced by a short SMA standing SMA standing
Wireless Components
4-4
Specification, March 2000
TDA 5101
Applications
4.4 Hints
1. Application Hints to the crystal oscillator As mentioned before, the crystal oscillator achieves a turne on time less than 1 msec. To attend this, a NIC oscillator type is implemented in the TDA5101. This oscillator type has the property, that the input impedance is a negative resistance in series to an inductance. Therefore the load capacitance of the crystal CL (specified by the crystal supplier) is transformed to the capacitance Cv.
-R
I
f, C L
Cv
TDA 5101
Cv =
1 1 + 2l CL
CL: : l:
crystal load capacitance for nominal frequency angular frequency inductivity of the crystal oscillator
Example for the ASK-Mode: Refering to the application circuit, in ASK-Mode the capacitance C7 is replaced by a short to ground. Assuming a crystal frequency of 9.84 MHz and a crystal load capacitance of CL=20pF. The inductance l is specified within the electrical characterisics at 9.84 MHz to a value of 11uH. Therefore C6 is calculated to ???.
C6 =
1 = Cv 1 2 + l CL
Wireless Components
4-5
Specification, March 2000
TDA 5101
Applications
Example for the FSK-Mode: FSK modulation is achieved by switching the load capacitance of the crystal as shown below.
FS K D TA
FS K O U T
C sw -R I
COSC
f, C L C v1
C v2
TDA 5101
The frequency deviation of the crystal oscillator is multiplied with the divider factor N of the Phase Locked Loop to the output of the power amplifier. In case of small fequency deviations (up to +/- 1000ppm), the two desired load capacitances can be calculated with the formula below.
CL m C 0 CL =
f 2(C 0 + CL) (1 + ) N * f1 C1 2(C 0 + CL) f ) 1 (1 + N * f1 C1
C L: C 0: : N: df:
crystal load capacitance for nominal frequency shunt capacity of the crystal angular frequency divider factor of the PLL peak frequency deviation
Because of the inductive part of the TDA5101 this values must be corrected by formula 1). Therefore Cv can be calculated.
Cv =
1 1 + 2l CL
Wireless Components
4-6
Specification, March 2000
TDA 5101
Applications
If the FSK switch is closed, Cv_ is equal to Cv1 (C6 in the application diagram). If the FSK switch is open, Cv2 (C7 in the application diagram)can be calculated.
Cv 2 = C 7 =
Csw Cv1 - (Cv + ) (Cv1 + Csw) (Cv + ) - Cv1
Csw:
parallel capacitance of the FSK switch (1 pF)
Remark: This calculations are only approximations. The exact values must be found in the specific application board
2. Design hints to the buffered clock output (CLKOUT) The CLKOUT pin is an open collector output. An external pull up resistor (RL) is to connect between this pin and the supply voltage. The value of RL is dependent on the clock frequency and the load capacitance CLD (PCB board plus input capacitance of the microcontroler). RL can be calculated to:
RL =
1 fCLKOUT * 8 * CLD
Table 4-2 fCLKOUT= 615 kHz fCLKOUT= 2.40 MHz
CL/pF 5 10 20
RL/kOhm 39 18 10
RL/kOhm 10 5.1 2.2
Remark: Because of the reason of a low current consumption and a low spurious radiation the largest possible RL should be choosen.
Wireless Components
4-7
Specification, March 2000
TDA 5101
Applications
4.5 Application Circuit
HCS360
R1 C5 FSK
VCC
ASK R3F R3A R2F R2A VCC C1 T1 VCC
TDA5101
0.61/2.46 MHz
Q3 C6 C7 C4
C2
C3
VCC
L1
Antenna R4
Application_circuit.wmf
Figure 4-4
Application Circuit
Wireless Components
4-8
Specification, March 2000
TDA 5101
Applications
4.6 Test Board Layouts
Figure 4-5
Top Side of TDA 5101
Figure 4-6
Bottom Side of TDA 5101
Wireless Components
4-9
Specification, March 2000
TDA 5101
Applications
4.7 Bill of material (Application Circuit)
Table 4-3 Bill of material Part Value 315 MHz ASK FSK Specification
R1 R2A R2F R3A R3F R4 C1 C2 C3 C4 C5 C6 C7 L1 Q3
4.7 k 15 k 12 k 15 k 12 k 1 k 47 nF 18 pF 330 pF 10 pF 4.7 nF 8.2 pF open 39 nH 9.84375 MHz CL=12pF TDA5101 HCS360 Batteriehalter Taster 47 pF
0805, 5% 0805, 5% 0805, 5% 0805, 5% 0805, 5% 0805, 5% 0805,X7R, 10% 0805, COG, 1% 0805, COG, 10% 0805, COG, 1% 0805, X7R, 10% 0805, COG, 0.1 pF 0805, COG, 10% TOKO LL2012-J Tokyo Denpa TSS-3B 9843.75kHz Spec.No. 20-18905 Infineon Microchip HU2031-1, RENATA STTSKHMPW, ALPS
IC1 IC2 B1 T1
Wireless Components
4 - 10
Specification, March 2000
5
Reference
Contents of this Chapter 5.1 5.1.1 5.1.2 5.1.3 Electrical Data. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-2 Absolute Maximum Ratings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-2 Operating Range . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-2 AC/DC Characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-3
TDA 5101
Reference
5.1 Electrical Data
5.1.1
Absolute Maximum Ratings
The AC / DC characteristic limits are not guaranteed. The maximum ratings may not be exceeded under any circumstances, not even momentary and individual, as permanent damage to the IC will result.
Table 5-1 Parameter Symbol Limit Values Min Junction Temperature Storage Temperature Thermal Resistance ESD integrity, all pins TJ Ts RthSA VESD Max Unit Remarks
-40 -40 -1
150 125 tbd. +1
C C K/W kV
100pF, 1500
Ambient Temperature under bias: TA=-25 to +85C
5.1.2
Operating Range
Within the operational range the IC operates as described in the circuit description. The AC / DC characteristic limits are not guaranteed
Table 5-2 Parameter Symbol Limit Values Min Max Unit Test Conditions
Supply voltage Ambient temperature
VS TA
2.1 -25
4.0
V
85
C
Wireless Components
5-2
Specification, March 2000
TDA 5101
Reference
5.1.3
AC/DC Characteristics
Table 5-3 Supply VoltageVS = 3V, Ambient temperatureTamb = 25 C Parameter Symbol Min Limit Values Typ Max Unit Test Conditions
Current consumption
Stand by mode PLL enable Transmit enable Power Down Modeswitch Stand by mode PLL enable Transmit enable Input bias current PDWN Low Power Detect Internal pull up current Input current low voltage VCO tuning voltage ASK Modulation ASK Transmit disable ASK Transmit enable Input bias current ASKDTA Input bias current ASKDTA ASK data rate FSK Modulation FSK Switch on FSK Switch off Input bias current FSKDTA Input bias current FSKDTA FSK data rate CLOCK driver output Output current CLOCK divider control Buffered clock output for f=fCRSTL/2 or f=fCRSTL/8 Buffered clock output for f=fCRSTL/4 or f=fCRSTL/ 16 Input bias current CLKDIV
IS PDWN IS PLL_EN IS TRANSM
3.3 7
100 4.2 9
nA mA mA
Pins 6,7,9,15 and 16 =0V or N.C. Load tank see fig. 4-1* V ASKDTA < 0.2V V FSKDTA< 0.2V V ASKDTA < 0.5V V ASKDTA > 1.4V V s = 4V V s = 2.3 ... 4V V s = 1.9 ... 2.1V
PLL locked FSK Switch disable FSK Switch disable
V PDWN V PDWN V PDWN IPDWN I LPD1 I LPD2 V LF VASKDTA VASKDTA IASKDTA IASKDTA fASKDTA VFSKDTA VFSKDTA IFSKDTA IFSKDTA fFSKDTA ICLKOUT VCLKDIV VCLKDIV ICLKDIV
0 1.5 1.5
0.7 Vs Vs 30
V V V

mA
30 1 Vs-1.6 0 1.5 -20 20 0.5 1.5 -20 20 Vs 30 Vs-0.6 0.5 Vs 30
V V V

kHz V V
V ASKDTA =Vs V ASKDTA = 0V
A
kHz
V FSKDAT= Vs V FSKDAT= 0V
1
mA
0 1.5
0.2 Vs 30
V V or pin open
V CLKDIV =Vs
Wireless Components
5-3
Specification, March 2000
TDA 5101
Reference
Table 5-3 Supply VoltageVS = 3V, Ambient temperatureTamb = 25 C (continued) Parameter Symbol Min CLOCK divider control Input bias current CLKDIV Crystal oscillator input Load capacitance Serial Resistance of the crystal Input inductance of the COSC pin FSK output switch On resistance On capacitance Off resistance Off capacitance Limit Values Typ Max Unit Test Conditions
ICLKDIV CCOSCmax
-20
V CLKDIV = 0V
5 100 12
pF Ohm H f=9.84 MHz f=9.84 MHz
RFSKOUT CFSKOUT RFSKOUT CFSKOUT 10k 1.5 5 1
250
Ohm pF Ohm pF
Power amplifier output, transformed to 50 Ohm Output Power*
PPAOUT 3 *Power amplifier in overcritical C-operation
7
dBm
f=315 MHz
Wireless Components
5-4
Specification, March 2000
TDA 5101
Reference
Wireless Components
5-5
Specification, March 2000

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