s http://www.siemens.de/semiconductor/consumer_electronic
TDA 4362
The TDA 4362 is an integrated Dual-Conversion-AM-Receiver.
Product Brief
TDA 4362
The Weatherband IC
Potential Application
s Car radios
Features
s High flexibility with external preamplifier
s 2 symmetrical or asymmetrical mixer inputs
s 2-pin-Oscillator for the 1st LO s 1st LO with LC-tank circuit s 1st LO, 60 to 160 MHz range s Low narrow band noise s Divider for 1st LO by 2, 4, 6, 8, 10, 12
s Integrated AGC generation for the prestages
s Strictly symmetrical RF path s Decoupled direct and divided counter outputs
s 2nd LO with quartz or external source
s Output for gain controlled 2. IF s FM-coincidence demodulator s
Two inputs for the 2nd IF-stage
Price Projection
s Standard price list
s For Key and Focus accounts or
high volumes you may contact your regional Siemens sales partner
Development and Support Tools
s Application Board
TDA 4362 and 4362X
Packing Features Benefits
One IC for global LW/MW/SW reception World radio
Supports US weather band (WB) services Substitutes expensive modules AM up/down conversion concept Alignment free
Dual mixer input for AM and WB No need for switching diodes
Type Ordering Code Package TDA 4362Q67007-A5228P-MQFP-44-2TDA 4362X Q67007-A5238
P-DSO-28-1
Documentation Date of Issue/Version Specification
4/98Application (TDA 4362)
1/98
Published by Semiconductor Group Siemens Aktiengesellschaft
Wien
¤ (+43) 1-1707-35611Richmond (Melbourne),Vic. 3121
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¤ (+49) 89-92214086Ballerup
¤ (+45) 4477-4477Tres Cantos-Madrid ¤ (+34) 91-5148000 Saint-Denis CEDEX 2 ¤ (+33) 1-49223100Espoo (Helsinki)¤ (+35) 9-51051 Berkshire RG 128FZ ¤ (+44) 1344-396000 Amaroussio/Athen ¤ (+30) 1-6864111Hong Kong
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¤ (+86) 10-685790-06,-07Shanghai 200003
¤ (+86) 21-63612618/19
Halfway House 1685¤ (+27) 11-652-2000,-2700
AUS B
BR
CDN
CH
D
DK
E
F
FIN
GB
GR
HK
I
IND
J
MAL
N
NL
NZ
P
PK
PL
RC
ROK
RUS
S
SGP
TR
USA
VRC
ZA
A
IRL
How to reach us:
http://www.siemens.de/semiconductor
? Siemens AG 1998. All Rights Reserved.
Please note that any information contained in this publication may be subject to change. Siemens re-serves the right to make changes to or to discontin-ue any product or service identified in this publica-tion without notice.
Please contact our regional offices to receive the latest version of the relevant information to verify, before placing orders, that the information being relied upon is current.
All brand or product names, hardware or software names are trademarks of their respective compa-nies or organizations.
Ordering No. B168-H7391-X-X-7600Printed in Germany PS 11983.
Block Diagram
FM Semiconductors in Car Radio AM/WB Receivers
AM/WB Receiver TDA 4362
Prestage AGC
IN1IN22
35
612
38
44
43VPrestage
IPrestage
8
1SW1
IN1/IN2+V Ref
403911
15141,2,4,6,8,10,12
910
A B C f Osc /n
f Osc
1312
374
34
+V S
V Ref
7313029
21
3635
33
32IF2out +V S
STDBY
2326242516
IN1/IN2
SW2
42
AGC
AGC Time
AFout 22
17181920
4127
28
AGC
Amplifier
AM-Stereo Decoder
STS Out
STS-C Standby
V S
I F o u t
IN1
IN2
1.LO
2.LO Tuned Input Filter Prestage Tuned Filter -FM-Tuner -FM-IF
Demodulator -Stereo Decoder -Noise Blancer
TDA 4362
AM WB IC Oscillator Tank Circuit AM
BA 885 or BA 595
BB 804 or BB 814 or BB 914
BF 1012 or BF 1009 or BF 998
BB 804 or BB 814 or BB 914
J-FET + BC 848C
AM AGC
FM
AF
AF
BB 914
AGC
Prestage
AM/FM Demodulator
AM Up Conv.Mixer
WB Down Conv.Mixer Down Conv.Mixer 2.LO 1.LO
TDA 4362
Audio Processor Audio Power
Micro-Controller
Availability
Samples available;
Product development release