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TEF6902A Datasheet(PDF) 39 Page - NXP Semiconductors

Part # TEF6902A
Description  Integrated car radio
PDF  106 Pages
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Manufacturer  NXP [NXP Semiconductors]
Direct Link  http://www.nxp.com
Logo NXP - NXP Semiconductors

TEF6902A Datasheet(HTML) 39 Page - NXP Semiconductors

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TEF6902A_3
© NXP B.V. 2008. All rights reserved.
Product data sheet
Rev. 03 — 19 March 2008
39 of 106
NXP Semiconductors
TEF6902A
Integrated car radio
[1]
X = don’t care.
8.2.7 Tuning overview
High injection LO (Europe FM, US FM and AM):
with LOINJ = 0 to achieve full image suppression in FM.
Low injection LO (Japan FM and OIRT):
with LOINJ = 1 to achieve full image suppression in FM.
where: M is the divider ratio of the VCO frequency for AM mixer 1 and FM mixer 1
.
Table 40.
Charge pump source[1]
FREF2
FREF1
FREF0
LOINJ
Charge pump
current
fref
0
0
0
X
CP1
100 kHz
0
0
1
X
CP2
50 kHz
0
1
0
X
CP3
25 kHz
0
1
1
1
CP3
20 kHz
0
1
1
0
CP4
20 kHz
1
0
0
X
CP5
10 kHz
1
0
1
X
reserved
1
1
0
X
reserved
1
1
1
X
reserved
Table 41.
Standard tuner settings
Broadcast band
BAND[2:0]
M
FREF[2:0]
fref
LOINJ
Tuning step
Europe FM and US FM
001
2
000
100 kHz
0
50 kHz
Japan FM
010
3
000
100 kHz
1
33.3 kHz
Eastern Europe FM
(OIRT FM)
010
3
011
20 kHz
1
6.67 kHz
AM MW and LW
111
20
011
20 kHz
0
1 kHz
AM SW 120 m to 60 m
110
16
100
10 kHz
0
0.625 kHz
AM SW 49 m to 22 m
101
10
100
10 kHz
0
1 kHz
AM SW 25 m to 15 m
100
8
100
10 kHz
0
1.25 kHz
AM SW 16 m to 11 m
011
6
100
10 kHz
0
1.67 kHz
N
f
RF
10.7 MHz
+
() M
×
f
ref
-----------------------------------------------------
=
N
f
RF
10.7 MHz
–
() M
×
f
ref
-----------------------------------------------------
=
tuning step
f
ref
M
------
=
M
f
VCO
f
mixer 1
---------------
=



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