TDA5252XT Infineon Technologies, TDA5252XT Datasheet - Page 52
TDA5252XT
Manufacturer Part Number
TDA5252XT
Description
Manufacturer
Infineon Technologies
Datasheet
1.TDA5252XT.pdf
(86 pages)
Specifications of TDA5252XT
Operating Temperature (min)
-40C
Operating Temperature (max)
85C
Operating Temperature Classification
Industrial
Product Depth (mm)
4.4mm
Product Length (mm)
9.7mm
Operating Supply Voltage (min)
2.1V
Operating Supply Voltage (max)
5.5V
Lead Free Status / Rohs Status
Compliant
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The C-bank C
receive frequency. In this case the switches of the C-bank are controlled by the bits D0 to D5 of the
XTAL_TUNING register (subaddress 02H, see Table 3-5).
3.2.2.2
In transmit mode the crystal oscillator frequency is the same as in the FSK receive case, see
Figure 3-15.
In receive mode a receive frequency offset is necessary as the limiters feedback is AC-coupled.
This offset is achieved by setting the oscillator frequency to the FSK HIGH transmit frequency, see
Figure 3-14.
3.2.3
For the correct calculation of the external capacitors the parasitic capacitances of the pins and the
switches (C
Figure 3-16
Data Sheet
20
C vm
ASK-mode:
Parasitics
, C
tune2
parasitics of the switching network
21
=
, C
can be varied over a range of 16 pF in steps of 250fF for finetuning of the FSK
(
------------------------------------------------------------------------------------------------------- -
C
C
22
v1
v1
) have to be taken into account.
C
C
+
+
V1
V2
C
C
tune1
tune1
C
f, C
V3
)
L
+
⋅
(
C
XSWA 22
XOUT 19
XSWF 20
XGND 23
C
v2
v2
XIN 21
+
+
C
C
v3
v3
+
+
C
C
52
C
tune2
tune2
22
L
C
)
21
-R
C
20
C
C
tune2
tune1
[3 – 23]
TDA5252 G2
Version 1.1
QOSC_parasitics.wmf
Application
2007-02-26
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