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

TDA 5103A
preliminary
Reference
Table 5-4 Supply Voltage V_S = 2.1 V ... 4.0 V, Ambient temperature T_amb = -25°C ... +85°C
Parameter
Symbol
Limit Values
Unit Test Conditions
Min
Typ
Max
Clock Driver Output (Pin 6)
Output current (Low)
I_CLKOUT
1
mA
V_CLKOUT = V_S
Output current (High)
I_CLKOUT
-40
µA
V_CLKOUT = 0 V
Saturation Voltage (Low)
V_SATL
0.9
V
I_CLKOUT = 1 mA
Saturation Voltage (High)
V_SATH
V_S - 0.9
V
I_CLKOUT = 0 mA
Crystal Oscillator Input (Pin 7)
Load capacitance
C_COSCmax
5
pF
Serial Resistance of the crys-
tal
100 Ω
f = 10.78 MHz
Input inductance of the
COSC pin
11
µH
f = 10.78 MHz
Power Amplifier Output (Pin 9)
Output Power¹⁾
P_OUT345
-2.5
2.5
5.5
dBm _{Vs = 2.2 V}²⁾
transformed to 50 Ohm
P_OUT345
0
5
8
dBm V_s = 3.0 V
P_OUT345
2
7
10
dBm V_s = 4.0 V
Low Power Detect Output (Pin 10)
Internal pull up current
I _LPD1
30
µA
V_S = 2.3 V ... V_S
Input current low voltage
I _LPD2
1
mA
V_S = 1.9 V ... 2.1 V
1) Power amplifier in overcritical C-operation.
Matching circuitry as used in the 50 Ohm-Output Testboard.
Supply-voltage dependency: 2 dB / V at 3 V with reference to 3 V.
A smaller load impedance reduces the supply-voltage dependency.
Temperature dependency: +1 dB at -25°c and -3 dB at +85°C with reference to +25°C.
A higher load impedance reduces the temperature dependency.
2) Power amplifier is switched off at 2.15 V
Wireless Components
5-6
Specification, March 2001