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ICs for FM/AM Tuner
AN7289NFBQ
FM-FE+AM IC for car radio
I Overview
The AN7289NFBQ is an IC having FM-FE+AM functions for car radio. A tuner block of car radio can be constructed by using this IC and the AN7293NSC/NFBQ.
24 17
Unit : mm
25
16
0.3+0.1 -0.05
7.00.3 0.6250.1 0.6250.1
I Features
* A less number of electrolytic capacitors is required (3 capacitors reduction compared with our conventional IC) * AM: Effective sensitivity is improved by 2 dB through ATC * AM: Strong-input characteristic is improved by 2-loopAGC function * The AN7289NSC of DIL package type is also available
32
1
8
0.8
9
0.10.1
0.15+0.1 -0.05
7.00.3 9.20.4
(0.55)
I Applications
* Car radios
LQFP032-P-0707 Note) The package of this product will be changed to lead-free type (LQFP032-P-0707B). See the new package dimensions section later of this datasheet.
FM-mix. in
I Block Diagram
21 FM-PIN D
24
23
22
20
19
18
VFOSC 25 VAOSC 26 GND2 27 28 Keyed-AGC in 29 AM-AFOUT 30 31 32
1
FM/AM SW FM AGC AM OSC FE OSC AM. S-meter AM ATC AM det. AM IF AGC AM SSC AM RF AGC AM IF amp. FM mix. FM IF amp. AM mix.
17
16 15 14 13 12 11 10 9
8
VCC 2
AM-IF count 3
AM-SD out 4
AM-S. meter 5
6
AM-IF out 7
GND1
1.40.2
9.20.4
Publication date: December 2001
SDC00004BEB
1
AN7289NFBQ
I Pin Descriptions
Pin No. 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 Description AM detection output VCC1 AM-IF counter output/DX/LO SW AM-SD output AM-signal meter output FM-IF output AM-IF output GND1 SSC AM-RF level detection AM-WAGC detection/DX setting AM-IF input AM-mix. output FM-IF input AM-RF gain control AM-mix. input Pin No. 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 Description FM-PIN diode driver AM-OSC coil pin FM-mix. output 2 FM-mix. output 1 FM-PIN diode driver FM-mix. input VCC2 /FM/AM SW FM-AGC output FM-OSC buffer output AM-OSC buffer output/FE-AGC sensitivity setting GND2 FM-OSC coil pin FM-keyed-AGC input AM-AM output/LO setting AM-ATC input AM-IF level detection
I Absolute Maximum Ratings
Parameter Supply voltage Supply current Power dissipation
*2 *1
Symbol VCC ICC PD Topr Tstg
Rating 9.1 56 343.3 -35 to +80 -55 to +125
Unit V mA mW C C
Operating ambient temperature Storage temperature
*1
Note) *1: Ta = 25C except power dissipation, operating ambient temperature and storage temperature. *2: Referring to "I Technical Information" for power dissipation at Ta = 80C, use the circuit under the conditions not exceeding the allowable limit value.
I Recommended Operating Range
Parameter Supply voltage Symbol VCC Range 7.2 to 9.0 Unit V
2
SDC00004BEB
AN7289NFBQ
I Electrical Characteristics at Ta = 25C
* AM mode at VCC = 8.0 V, fIN2 = 1 MHz Parameter AM consumption current 1 AM consumption current 2 AM-AF output AM signal-to-noise ratio AM-AGC width AM-ATC operation Symbol amLT1 amLT2 amVO amSN amW Conditions Without input fIN2 = 1 MHz, VIN2 = 130 dB VIN2 = 74 dB, 400 Hz 30%, AM-AF output VIN2 = 74 dB, 400 Hz 30%, AM-AF output S/N VIN2 = 74 dB, 400 Hz 30%, AM-AF output -10 dB input change Min 28 33 105 48 56 3.5 Typ 36 41 135 52 60 6.5 Max 44 49 160 58 64 9.5 Unit mA mA mV dB dB dB
amATC (Output ratio [dB] of 400 Hz and 3 kHz when VIN2 = 18 dB) - (output ratio [dB] of 400 Hz and 3 kHz when VIN2 = 74 dB) 80%Mod., AM-AFOUT output
AM-distortion rate 1 AM-distortion rate 2 AM wide band AGC on input
amT1 amT2 amVW
VIN2 = 74 dB, 400 Hz 80%, AM-AF output distortion VIN2 = 130 dB, 400 Hz 80%, AM-AF output distortion fIN2 = 1.4 MHz, input when pin 15 voltage becomes below 3 V Without input VIN2 = 40 dB Without input VIN2 = 40 dB Without input Without input, pin 5 voltage VIN2 = 30 dB, pin 5 voltage VIN2 = 130 dB, pin 5 voltage AM-IF count output is over 120 mV VIN2 when f becomes 450 kHz2 kHz AM-IF count output is over 120 mV VIN2 when f becomes 450 kHz2 kHz
0.01 0.01 96 160 150 4.5 0.0 1 0.8 4.1 23 43
0.5 0.5 102 210 210 4.9 0.2 50 1.05 4.8 29 49
1.5 1.5 108 260 270 10 5.1 0.5 200 1.3 5.1 35 55
% % dB mV mV mV V V mV V V dB dB
AM local oscillation buffer output amVOS AM-IF count output 1 AM-IF count output 2 AM-SD output 1 AM-SD output 2 AM signal meter output 1 AM signal meter output 2 AM signal meter output 3 AM search sensitivity DX AM search sensitivity LO amIF1 amIF2 amSD1 amSD2 amVS1 amVS2 amVS3 amDX amLO
Note) FM tuning condition: Adjust VATU voltage so that VAOSC output frequency becomes 1 450 kHz500 Hz
SDC00004BEB
3
AN7289NFBQ
I Electrical Characteristics at Ta = 25C (continued)
* FM mode at VCC = 8.0 V, fIN1 = 98 MHz Parameter FM local oscillation buffer output FM-IF output level FM-AGC sensitivity High-level FM-AGC voltage Low-level FM-AGC voltage FM consumption current Symbol fmVOS fmIF fmAGC fmVAH fmVAL fmIT Conditions fOSC = 108.7 MHz, without input VIN1 = 71 dB VIN1 level when V24 becomes 3 V VIN1 = 70 dB VIN1 = 82 dB Without input Min 140 40 60 6.0 26 Typ 200 75 64 6.4 0.05 35 Max 260 110 68 6.8 0.5 44 Unit mV mV dB V V mA
Note) FM tuning condition: Adjust VFTU voltage so that VFOSC output frequency becomes 108.7 MHz10 kHz.
I Technical Information
* PD Ta curves of LQFP032-P-0707 PD T a
1.600
1.400 1.388
1.200
Power dissipation PD (W)
Mounted on standard board (grass epoxy : 50 mm x 50 mm x t0.8 mm) Rth(j-a) = 90.0C/W
1.000
0.800
0.613 0.600 Independent IC without heat shink Rth(j-a) = 203.7C/W
0.400
0.200
0.000
0
25
50
75
100
125
150
Ambient temperature Ta (C)
4
SDC00004BEB
AN7289NFBQ
I Application Circuit Example
FM-mix. in
FM-PIN D
AM-ANT AM-VT 8.2 H 10 k 100 k
AM
FM
4 pF 0.047 F
0.22 F
0.01 F
1 pF
0.022 F
3 pF
5 k
33 pF 28
13
SFPS-450H
3 pF
FE-VT 5.6 k Keyed-AGC in 10 k 3.9 k AMAFOUT
29 30 31 32
12 11 10 k 10 9 100 F 0.022 F
0.1 F
10 k
0.047 F
510 k VCC 2
100 k
GND1
12 k
0.1 F
0.1 F 0.022 F VCC 0.1 F 100 F
50 k
1
3
4
5
6
7
8
0.01 F
0.1 F
510 k 0.22 F
100 k
Seek on LO 5V
off DX/LO DX
AM-IF count
AM-SD out AM-S. meter
AM-IF out
2SK435
GND2 27
MS3 14
10
VAOSC
0.022 F
26
15
0.022 F 1 F
2SC828A
VFOSC
1000 pF
25
16
3 pF
24
23
22
21
20
19
18
17
SDC00004BEB
5
AN7289NFBQ
I New Package Dimensions (Unit: mm)
* LQFP032-P-0707B (Lead-free package) 9.000.20 7.000.20 24 17 16
(0.70)
25
32 1 (0.70) 0.80
9
(1.00)
0.150.05
Seating plane 0 to 10 0.500.20
6
SDC00004BEB
0.100.10
1.400.10 1.70 max.
8 0.300.05
7.000.20 9.000.20
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(1) An export permit needs to be obtained from the competent authorities of the Japanese Government if any of the products or technologies described in this material and controlled under the "Foreign Exchange and Foreign Trade Law" is to be exported or taken out of Japan. (2) The technical information described in this material is limited to showing representative characteristics and applied circuit examples of the products. It does not constitute the warranting of industrial property, the granting of relative rights, or the granting of any license. (3) The products described in this material are intended to be used for standard applications or general electronic equipment (such as office equipment, communications equipment, measuring instruments and household appliances). Consult our sales staff in advance for information on the following applications: * Special applications (such as for airplanes, aerospace, automobiles, traffic control equipment, combustion equipment, life support systems and safety devices) in which exceptional quality and reliability are required, or if the failure or malfunction of the products may directly jeopardize life or harm the human body. * Any applications other than the standard applications intended. (4) The products and product specifications described in this material are subject to change without notice for reasons of modification and/or improvement. At the final stage of your design, purchasing, or use of the products, therefore, ask for the most up-to-date Product Standards in advance to make sure that the latest specifications satisfy your requirements. (5) When designing your equipment, comply with the guaranteed values, in particular those of maximum rating, the range of operating power supply voltage and heat radiation characteristics. Otherwise, we will not be liable for any defect which may arise later in your equipment. Even when the products are used within the guaranteed values, redundant design is recommended, so that such equipment may not violate relevant laws or regulations because of the function of our products. (6) When using products for which dry packing is required, observe the conditions (including shelf life and after-unpacking standby time) agreed upon when specification sheets are individually exchanged. (7) No part of this material may be reprinted or reproduced by any means without written permission from our company.
Please read the following notes before using the datasheets
A. These materials are intended as a reference to assist customers with the selection of Panasonic semiconductor products best suited to their applications. Due to modification or other reasons, any information contained in this material, such as available product types, technical data, and so on, is subject to change without notice. Customers are advised to contact our semiconductor sales office and obtain the latest information before starting precise technical research and/or purchasing activities. B. Panasonic is endeavoring to continually improve the quality and reliability of these materials but there is always the possibility that further rectifications will be required in the future. Therefore, Panasonic will not assume any liability for any damages arising from any errors etc. that may appear in this material. C. These materials are solely intended for a customer's individual use. Therefore, without the prior written approval of Panasonic, any other use such as reproducing, selling, or distributing this material to a third party, via the Internet or in any other way, is prohibited.
2001 MAR

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