TDA7110F Infineon Technologies, TDA7110F Datasheet - Page 23

• Manufacturer Part Number: TDA7110F
• Description: IC TX ASK/FSK 434MHZ 10-TSSOP
• Manufacturer: Infineon Technologies

Specifications of TDA7110F

• Frequency: 433MHz ~ 435MHz
• Applications: Remote Control, RKE, Security Systems
• Modulation Or Protocol: ASK, FSK
• Power - Output: 11dBm
• Current - Transmitting: 21mA
• Data Interface: PCB, Surface Mount
• Antenna Connector: PCB, Surface Mount
• Voltage - Supply: 2.1 V ~ 4 V
• Operating Temperature: -40°C ~ 85°C
• Package / Case: 10-TSSOP
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Features: -
• Memory Size: -
• Data Rate - Maximum: -
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant, Lead free / RoHS Compliant
• Other names: SP000611108

Example for the FSK-Mode:
FSK modulation is achieved by switching the load capacitance of the crystal as shown
below.
Figure 12
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 frequency
deviations (up to +/- 1000 ppm), the two desired load capacitances can be calculated
with the formula below.
C
C
f:
ω:
N:
df:
Because of the inductive part of the TDA7110F, these values must be corrected by
Formula 1 on the preceding page. The value of Cv± can be calculated.
Data Sheet
L
0
:
:
crystal load capacitance for nominal frequency
shunt capacitance of the crystal
frequency
ω = 2
division ratio of the PLL
peak frequency deviation
FSK Mode
π
f: angular frequency
-R
CL
FSKDTA
Csw
±
=
L
IC
CL
1
m
±
C
N
0
FSKOUT
COSC
Δ
*
N
f
f
Δ
*
23
1
f
1 (
f
1
+
1 (
f, CL Cv1
( 2
+
C
( 2
0
C
C
+
1
0
C
CL
+
1
CL
)
)
)
)
Cv2
V 1.0, 2009-02-26
Applications
TDA7110F