TDA5103A Datasheet, PDF (16/29 Pages) Infineon Technologies AG – ASK Transmitter 345 MHz

TDA 5103A
preliminary
Functional Description
PDWN
DATA
On
Bias
Source
120 k

On
PLL
345
MHz
PA
IC
Figure 3-5 Power mode control circuitry
PAOUT
Power_Mode.wmf
Table 3-4 provides a listing of how to get into the different power modes
Table 3-4
PDWN
Low¹⁾
High³⁾
High
1) Low:
2) Open:
3) High:
DATA
Low, Open²⁾
Low
Open, High
Voltage at pin < 0.7 V (PDWN)
Voltage at pin < 0.5 V (DATA)
Pin open
Voltage at pin > 1.5 V
MODE
POWER DOWN
PLL ENABLE
TRANSMIT
Other combinations of the control pins PDWN and DATA are not recom-
mended.
Wireless Components
3-9
Specification, March 2001