TDA7110 Datasheet, PDF (39/39 Pages) Infineon Technologies AG – ASK/FSK Transmitter 868/433 MHz

TDA7110
Reference
Table 4-4 Supply Voltage V_S = 2.1 V ... 4.0 V, Ambient temperature T_amb = -40°C ... +85°C
Parameter
Symbol
Limit Values
Unit Test Conditions
Min
Typ
Max
Power Amplifier Output (Pin 14)
Output Power³⁾ at 433 MHz ^POUT, 433
5
transformed to 50 Ohm.
P_{OUT, 433}
7
V_FSEL = 0 V
P_{OUT, 433}
7.5
6.5
8.5
dBm V_S = 2.1 V
10
12
dBm V_S = 3.0 V
11.5
13.5 dBm V_S = 4.0 V
Output Power⁴⁾ at 868 MHz ^POUT, 868
5.8
transformed to 50 Ohm.
P_{OUT, 868}
7.1
7.5
8.5
dBm V_S = 2.1 V
10.2
12.2 dBm V_S = 3.0 V
V_FSEL = V_S
P_{OUT, 868}
7.5
11
12.5 dBm V_S = 4.0 V
Frequency Range Selection (Pin 15)
Transmit frequency 433 MHz V_FSEL
0
0.5
V
Transmit frequency 868 MHz V_FSEL
V
pin open
Input bias current FSEL
I_FSEL
35
µA
V_FSEL = V_S
Input bias current FSEL
I_FSEL
-20
µA
V_FSEL = 0 V
Crystal Frequency Selection (Pin 16)
Crystal frequency 6.78 MHz V_CSEL
0
0.2
V
Crystal frequency 13.56 MHz V_CSEL
V
pin open
Input bias current CSEL
I_CSEL
55
µA
V_CSEL = V_S
Input bias current CSEL
I_CSEL
-25
µA
V_CSEL = 0 V
1) The output-frequency range can be increased by limiting the temperature and supply voltage
range.
Minimum f_VCO − 1 MHz => Minimum T_amb + 5°C
Maximum f_VCO + 1 MHz => Maximum T_amb − 5°C
Maximum f_VCO + 1 MHz => Minimum V_S + 25 mV, max. + 40 MHz.
2) Derating linearly to a saturation voltage of max. 140 mV at I_CLKOUT = 0 mA
3) Matching circuitry as used in the 50 Ohm-Output Testboard for 434 MHz operation.
Tolerances of the passive elements not taken into account.
Range @ 2.1 V, +25°C: 6.5 dBm +/- 1 dBm
Range @ 3.0 V, +25°C: 10 dBm +/- 2.0 dBm
Range @ 4.0 V, +25°C: 11.5 dBm +/- 2.5 dBm
4) Matching circuitry as used in the 50 Ohm-Output Testboard for 868 MHz operation.
Tolerances of the passive elements not taken into account.
Range @ 2.1 V, +25°C: 7.5 dBm +/- 1.0 dBm
Range @ 3.0 V, +25°C: 10.2 dBm +/- 2.0 dBm
Range @ 4.0 V, +25°C: 11 dBm +/- 2.5 dBm
A smaller load impedance reduces the supply-voltage dependency.
A higher load impedance reduces the temperature dependency.
Wireless Components
4-8
Data Sheet, December 2008