TDA5102 Infineon Technologies, TDA5102 Datasheet - Page 27

• Manufacturer Part Number: TDA5102
• Description: TRANSMITTER ASK/FSK SGL TSSOP16
• Manufacturer: Infineon Technologies
• Type: Transmitterr

Specifications of TDA5102

• Package / Case: 16-TSSOP
• Frequency: 915MHz
• Applications: Alarm Systems, Communication Systems
• Modulation Or Protocol: ASK, FSK
• Data Rate - Maximum: 20 kbps
• Power - Output: 3.2dBm
• Current - Transmitting: 7mA
• Data Interface: PCB, Surface Mount
• Antenna Connector: PCB, Surface Mount
• Voltage - Supply: 2.1 V ~ 4 V
• Operating Temperature: -25°C ~ 85°C
• Operating Frequency: 925 MHz
• Operating Supply Voltage: 2.5 V, 3.3 V
• Maximum Operating Temperature: + 85 C
• Minimum Operating Temperature: - 25 C
• Mounting Style: SMD/SMT
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Features: -
• Memory Size: -
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant, Lead free / RoHS Compliant
• Other names: SP000013432; TDA5102; TDA5102INTR; TDA5102INTR; TDA5102INTRINTR; TDA5102XT

Wireless Components
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.
Csw:
Remark:
2. Design hints on the buffered clock output (CLKOUT)
The CLKOUT pin is an open collector output. An external pull up resistor (RL)
should be connected between this pin and the positive supply voltage. The
value of RL is depending on the clock frequency and the load capacitance CLD
(PCB board plus input capacitance of the microcontroller). RL can be calculated
to:
Remark: To achieve a low current consumption and a low
Table 4-2
CLD
5
10
20
[
pF
]
parallel capacitance of the FSK switch (3 pF)
spurious radiation, the largest possible RL should be chosen.
These calculations are only approximations. The necessary values
depend on the layout also and must be adapted for the specific
application board.
fCLKOUT=
Cv
894 kHz
2
=
C
4 - 7
RL
RL
7
=
[
=
kOhm
6.8
27
12
Csw
fCLKOUT
∗
]
Cv
1
(
−
Cv
1
(
*
Cv
+
8
CLD
)
*
+
−
CLD
)
10
20
Cv
∗
5
[
(
pF
Cv
1
]
Specification, October 2001
1
fCLKOUT=
3.57 MHz
+
Csw
)
RL
Applications
TDA 5102
[
kOhm
6.8
3.3
1.8
]