TDA5225 Datasheet, PDF (89/176 Pages) Infineon Technologies AG – Enhanced Sensitivity Multi-Channel Quad-Configuration Receiver

TDA5225
Reference
# _Parameter
Symbol
Limit Values
Unit Test Conditions
Remarks
min. typ. max.
E9 Inband fractional spur
-40
dBc
■
E10 3dB Overall Analog BW_ANA
230
kHz
LNA input to Limiter
■
Frontend Bandwidth
output, excluding external
CER filter
1^st IF Buffer Characteristics
F1 Input impedance
R_{in_IF}
290 330 370
Ω
f_IF = 10...12 MHz
■
F2
Output impedance R_{out_IF}
290 330 370
Ω
f_IF = 10...12 MHz
■
F3 Voltage gain
AV_Buffer
3
4
5
dB
f_IF = 10...12 MHz
Z_source = 330 Ω
Z_load = 330 Ω
F4 Buffer switch
d_isolation
60
isolation (CERFSEL)
dB
f_IF = 10...12 MHz
■
see Figure 6
2^nd IF Mixer, RSSI and Filter Characteristics
G1 Mixer input
impedance
R_{in_IF}
290 330 390
G6 RSSI
G2.1 Dynamic range
DR_RSSI
-110
-30
(Linearity +/- 2 dB)
-115
-60
-110
-50
G2.2 Linearity
DR_LIN
-1
G2.3 Temperature drift
DR_TEMP
-2.5
within linear dynamic
range
G2.4 Output dynamic
V_RSSI+
0.8
range
G2.5 analog RSSI error, DRSSI_ana -4
untrimmed
G2.6 analog RSSI slope, dV_RSSI/
8
10
untrimmed
dV_{mix_in}
G2.7 digital RSSI error,
untrimmed
DRSSI_{dig_u} -4
+1
+1.5
2.0
+2
12
+2
Ω
dBm
dBm
dBm
dB
dB
f_IF = 10...12 MHz
■
Related to RF input
matched to 50 Ω
applies for digital RSSI; ■
AGC on
applies for analog RSSI ■
@ 50kHz BPF, AFGC off
applies for analog RSSI ■
@ 300kHz BPF, AFGC off
-95 dBm...-35 dBm;
■
applies for digital RSSI
-95 dBm...-35 dBm;
■
applies for digital RSSI
V
dB
at RSSI pin
mV/dB
dB
at RSSI pin;
typical 600 mV/60 dB =
10 mV/dB
RSSI register readout
Data Sheet
89
V1.0, 2010-02-19