TDA5212_06 Datasheet, PDF (38/49 Pages) Infineon Technologies AG – ASK/FSK 915MHz Single Conversion Receiver

TDA 5212
Reference
5.1.3 AC/DC Characteristics
AC/DC characteristics involve the spread of values guaranteed within the spec-
ified voltage and ambient temperature range. Typical characteristics are the
median of the production. The device performance parameters marked with ■
are not part of the production test, but verified by design or measured in an Infi-
neon Evalboard as described in Section 5.2.
Table 5-3 AC/DC Characteristics with T_A 25 °C, V_VCC = 4.5 ... 5.5 V
# Parameter
Symbol
Limit Values
min
typ
max
Unit Test Conditions/
Notes
L Item
Supply
Supply Current
1 Supply current,
standby mode
2 Supply current, device
operating in FSK mode
I_{S PDWN}
I_SF
3 Supply current, device
I_SA
operating in ASK mode
90
120
nA
Pin 27 (PDWN)
open or tied to 0 V
5.4
5.7
mA
Pin 11 (FSEL)
open, Pin 15
(MSEL) tied to
GND
4.8
5.1
mA
Pin 11 (FSEL)
open, Pin 15
(MSEL) open
LNA
Signal Input LNI (PIN 3), V_THRES > 2.8V, high gain mode
1 Average Power Level
RF_in
at BER = 2E-3
(Sensitivity) ASK
-112
2 Average Power Level
RF_in
at BER = 2E-3
(Sensitivity) FSK
-105
3 Input impedance,
f_RF = 915 MHz
S_{11 LNA}
0.717 / -78.4 deg
4 Input level @ 1dB C.P.
P1dB_LNA
-15
f_RF=915 MHz
5 _{Input 3}^rd _{order intercept}
IIP3_LNA
-14
point f_RF = 915 MHz
6 LO signal feedthrough at
LO_LNI
73
antenna port
Signal Output LNO (PIN 6), V_THRES > 2.8V, high gain mode
1 Gain f_RF = 915 MHz
S_{21 LNA}
1.401 / 98.4 deg
2 Output impedance,
f_RF = 915 MHz
S_{22 LNA}
0.869 / -25.7 deg
dBm Manchester
encoded datarate ^■
4kBit, 280kHz IF
Bandwidth
dBm Manchester enc.
datarate 4kBit,
■
280kHz IF Bandw.,
± 50kHz pk. dev.
■
dBm
■
dBm f_in = 914 & 916MHz ■
dBm
■
■
■
Wireless Components
5-4
Specification, December 2006