tda5100a Infineon Technologies Corporation, tda5100a Datasheet - Page 12

• Manufacturer Part Number: tda5100a
• Description: Ask Transmitter 434 Mhz
• Manufacturer: Infineon Technologies Corporation

Wireless Components
8
9
10
PAGND
PAOUT
LPD
3 0 0 Ω
V
S
9
8
4 0 µ A
1 0
3 - 5
Ground connection of the power amplifier.
The RF ground return path of the power
amplifier output PAOUT (pin 9) has to be
concentrated to this pin.
RF output pin of the transmitter.
A DC path to the positive supply VS has to
be supplied by the antenna matching net-
work.
This pin provides an output indicating the
low-voltage state of the supply voltage VS.
VS < 2.15 V will set LPD to the low-state.
An internal pull-up current of 40 µA gives the
output a high-state at supply voltages above
2.15 V.
Functional Description
Specification, March 2001
TDA 5100A
preliminary