tda5235 Infineon Technologies Corporation, tda5235 Datasheet - Page 139

• Manufacturer Part Number: tda5235
• Description: Enhanced Sensitivity Double-configuration Receiver With Digital Baseband Processing
• Manufacturer: Infineon Technologies Corporation

Data Sheet
RF Front End Characteristics
(Unless otherwise noted, all values apply for the specified frequency ranges)
E1
E1.1
E1.2
E1.3
E1.4
E1.5
E1.6
E1.7
E1.8
E2
E3
E4
#
Parameter
LNA input impedance
f
f
f
f
f
f
f
f
FE output
impedance
FE voltage
conversion gain
FE voltage
conversion gain
RF
RF
RF
RF
RF
RF
RF
RF
= 315 MHz
= 434MHz
= 868MHz
= 915MHz
= 315 MHz
= 434MHz
= 868MHz
= 915MHz
Symbol
R
C
R
C
R
C
R
C
R
C
R
C
R
C
R
C
R
AV
AV
in_p,diff
in_p,diff
in_p,diff
in_p,diff
in_p,diff
in_p,diff
in_p,diff
in_p,diff
in_p, SE
in_p, SE
in_p, SE
in_p, SE
in_p, SE
in_p, SE
in_p, SE
in_p, SE
out_IF
FE, max
FE_7
min. typ.
290
34
29
Limit Values
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
36
31
139
max.
380
38
33
Unit
Ω
pF
Ω
pF
Ω
pF
Ω
pF
Ω
pF
Ω
pF
Ω
pF
Ω
pF
Ω
dB
dB
Remarks
differential parallel
equivalent input between
LNA_INP and LNA_INN
single-ended parallel
equivalent input between
LNA_INP and GNDRF /
LNA_INN and GNDRF
f
(IFATT = 0);
input matched to 50 Ω;
Insertion loss of input
matching network = 1dB
R
tested at 434 MHz
IF attenuation
(IFATT = 7);
input matched to 50 Ω;
Insertion loss of input
matching network = 1dB
R
tested at 434 MHz
Test Conditions
min. IF attenuation
IF
load_IF
load_IF
= 10.7 MHz
= 330 Ω;
= 330 Ω;
V1.0, 2010-02-19
Reference
TDA5235
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