TDA5212 Datasheet, PDF (39/51 Pages) Infineon Technologies AG – ASK/FSK 915MHz Single Conversion Receiver

TDA 5212
preliminary
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
were measured on an Infineon evaluation board as desdribed 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
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.
f_RF=915 MHz
P1dB_LNA
t.b.d.
5 _{Input 3}^rd _{order intercept}
point f_RF = 915 MHz
IIP3_LNA
t.b.d.
6 LO signal feedthrough at
antenna port
LO_LNI
t.b.d.
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
dBm
Manchester
encoded datarate
4kBit, 280kHz IF
Bandwidth
Manchester enc.
datarate 4kBit,
280kHz IF Bandw.,
± 50kHz pk. dev.
dBm
dBm f_in = 914 & 916MHz
dBm
Wireless Components
5-4
Specification, May 2003