TDA5235
Reference
#
Parameter
Symbol
Limit Values
Unit Test Conditions
Remarks
min. typ. max.
RF Front End Characteristics
(Unless otherwise noted, all values apply for the specified frequency ranges)
E1
LNA input impedance
fRF = 315 MHz
E1.1
Rin_p,diff
Cin_p,diff
Rin_p,diff
Cin_p,diff
Rin_p,diff
Cin_p,diff
Rin_p,diff
Cin_p,diff
Rin_p, SE
Cin_p, SE
Rin_p, SE
Cin_p, SE
Rin_p, SE
Cin_p, SE
Rin_p, SE
Cin_p, SE
Rout_IF
680
1.05
570
0.87
550
0.63
540
0.63
500
1.87
400
1.63
322
1.59
312
1.56
330
Ω
differential parallel
equivalent input between
LNA_INP and LNA_INN
■
■
■
■
■
■
■
■
■
■
■
■
■
■
■
■
■
pF
Ω
E1.2
E1.3
E1.4
E1.5
E1.6
E1.7
E1.8
fRF = 434MHz
fRF = 868MHz
fRF = 915MHz
fRF = 315 MHz
fRF = 434MHz
fRF = 868MHz
fRF = 915MHz
pF
Ω
pF
Ω
pF
Ω
single-ended parallel
equivalent input between
LNA_INP and GNDRF /
LNA_INN and GNDRF
pF
Ω
pF
Ω
pF
Ω
pF
Ω
E2
E3
FE output
impedance
290
34
380
38
fIF = 10.7 MHz
FE voltage
conversion gain
AVFE, max
36
dB
min. IF attenuation
(IFATT = 0);
input matched to 50 Ω;
Insertion loss of input
matching network = 1dB
R
load_IF = 330 Ω;
tested at 434 MHz
E4
FE voltage
AVFE_7
29
31
33
dB
IF attenuation
conversion gain
(IFATT = 7);
input matched to 50 Ω;
Insertion loss of input
matching network = 1dB
R
load_IF = 330 Ω;
tested at 434 MHz
Data Sheet
139
V1.0, 2010-02-19
INFINEON [ Infineon ]
