TDK5110F Infineon Technologies, TDK5110F Datasheet - Page 24

• Manufacturer Part Number: TDK5110F
• Description: TRANSMITTER ASK/FSK SGL TSSOP10
• Manufacturer: Infineon Technologies
• Type: Transmitterr

Specifications of TDK5110F

• Package / Case: 10-TSSOP
• Frequency: 434MHz Center
• Applications: Alarm Systems, Communication Systems
• Modulation Or Protocol: ASK, FSK
• Data Rate - Maximum: 20 kbps
• Power - Output: 11dBm
• Current - Transmitting: 14.2mA
• Data Interface: PCB, Surface Mount
• Antenna Connector: PCB, Surface Mount
• Voltage - Supply: 2.1 V ~ 4 V
• Operating Temperature: -40°C ~ 125°C
• Operating Frequency: 870 MHz
• Operating Supply Voltage: 2.5 V, 3.3 V
• Maximum Operating Temperature: + 125 C
• Minimum Operating Temperature: - 40 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: SP000056180; TDK5110FXT

If the FSK switch is closed, Cv
FSK switch is open, Cv2 (C2 in the application diagram) can be calculated.
Csw:
Remark:
on the layout also and must be adapted for the specific application board.
3.5
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:
Table 6
Remark:
Data Sheet
These calculations are only approximations. The necessary values depend
parallel capacitance of the FSK switch (3 pF incl. layout parasitics)
Design Hints on the Clock Output (CLKOUT)
Clock Output
To achieve a low current consumption and a low
spurious radiation, the largest possible RL should be chosen.
CL
10
20
[
5
pF
Cv
]
2
=
C
2
RL
±
=
Cv
fCLKOUT=847.5 kHz
is equal to Cv1 (C1 in the application diagram). If the
=
Csw
±
fCLKOUT
=
∗
Cv
CL
1
24
1
±
(
−
Cv
1
1
(
+
Cv
*
+
ω
8
)
+
2
*
−
)
L
CLD
Cv
∗
(
Cv
1
1
RL
+
Csw
[
kOhm
6.8
27
12
)
]
V 1.1, 2006-07-10
Applications
TDK5110F