TDK5101F_07 INFINEON [Infineon Technologies AG], TDK5101F_07 Datasheet - Page 10

• Manufacturer Part Number: TDK5101F_07
• Description: 315 MHz ASK/FSK Transmitter in 10-pin Package
• Manufacturer: INFINEON [Infineon Technologies AG]

Pin
No.
7
Data Sheet
Symbol
FSKDTA
Interface Schematic
7
V
S
90 kΩ
+1.2 V
60 kΩ
30 µA
10
+1.1 V
Function
Digital frequency modulation can
be imparted to the Xtal Oscillator by
this pin. The VCO-frequency varies
in accordance to the frequency of
the reference oscillator.
A logic high (FSKDTA > 1.5V or
open)
sets the FSK switch to a high
impedance state.
A logic low (FSKDTA < 0.5 V)
closes the FSK switch
from FSKOUT (pin 4) to GND (pin
3).
A capacitor can be switched to the
reference crystal network this way.
The Xtal Oscillator frequency will
be shifted giving the designed FSK
frequency deviation.
Functional Description
V 1.3, 2007-09-19
TDK5101F