AN7289NFBQ [PANASONIC]
FM-FE+AM IC for car radio; FM -FE + AM IC汽车收音机
| 型号： | AN7289NFBQ |
| 厂家： | 
PANASONIC |
| 描述： | FM-FE+AM IC for car radio |
| 文件： | 总5页 (文件大小：61K) |
| 中文： | 中文翻译 | 下载： | 下载PDF数据表文档文件 |
ICs for FM/AM Tuner
AN7289NFBQ
FM-FE+AM IC for car radio
Unit : mm
■ Overview
24
17
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.
25
16
■ Features
• A less number of electrolytic capacitors is required (3
capacitors reduction compared with our conventional
IC)
32
9
1
8
• AM: Effective sensitivity is improved by 2 dB through
ATC
• AM: Strong-input characteristic is improved by 2-loop-
AGC function
• The AN7289NSC of DIL package type is also available
(0.55)
7.0±0.3
9.2±0.4
LQFP032-P-0707
■ Applications
• Car radios
■ Block Diagram
FM/AM SW
25
16
VFOSC
FM
AGC
FM
26
15
14
13
12
11
10
9
VAOSC
GND2
mix.
AM
27
28
29
30
31
32
FM
OSC
IF amp.
FE
OSC
AM
mix.
AM. S-meter
Keyed-AGC in
AM-AFOUT
AM
RF
AGC
AM
IF AGC
AM
ATC
AM
IF amp.
AM
det.
AM
SSC
1
AN7289NFBQ
ICs for FM/AM Tuner
■ Pin Descriptions
Pin No.
Description
AM detection output
VCC1
Pin No.
17
Description
1
2
FM-PIN diode driver
18
AM-OSC coil pin
3
AM-IF counter output/DX/LO SW
AM-SD output
19
FM-mix. output 2
4
20
FM-mix. output 1
5
AM-signal meter output
FM-IF output
21
FM-PIN diode driver
FM-mix. input
6
22
7
AM-IF output
23
VCC2 /FM/AM SW
FM-AGC output
8
GND1
24
9
SSC
25
FM-OSC buffer output
AM-OSC buffer output/FE-AGC sensitivity setting
GND2
10
11
12
13
14
15
16
AM-RF level detection
AM-WAGC detection/DX setting
AM-IF input
26
27
28
FM-OSC coil pin
AM-mix. output
FM-IF input
29
FM-keyed-AGC input
AM-AM output/LO setting
AM-ATC input
30
AM-RF gain control
AM-mix. input
31
32
AM-IF level detection
■ Absolute Maximum Ratings
Parameter
Symbol
Rating
9.1
Unit
V
Supply voltage
VCC
ICC
Supply current
56
mA
mW
°C
2
Power dissipation *
PD
343.3
1
Operating ambient temperature *
Topr
Tstg
−35 to +80
−55 to +125
1
Storage temperature *
°C
Note) 1: T = 25°C except power dissipation, operating ambient temperature and storage temperature.
*
a
2: Referring to "■ Technical Information" for power dissipation at T = 80°C, use the circuit under the conditions not exceeding
*
a
the allowable limit value.
■ Recommended Operating Range
Parameter
Symbol
Range
Unit
Supply voltage
VCC
7.2 to 9.0
V
2
ICs for FM/AM Tuner
AN7289NFBQ
■ Electrical Characteristics at Ta = 25°C
• AM mode at VCC = 8.0 V, fIN2 = 1 MHz
Parameter
AM consumption current 1
AM consumption current 2
AM-AF output
Symbol
Conditions
Min
28
Typ Max
Unit
mA
mA
mV
amLT1 Without input
36
41
44
49
amLT2 fIN2 = 1 MHz, VIN2 = 130 dBµ
33
amVO VIN2 = 74 dBµ, 400 Hz 30%,
105
135
160
AM-AF output
AM signal-to-noise ratio
AM-AGC width
amSN VIN2 = 74 dBµ, 400 Hz 30%,
48
56
52
60
58
64
dB
dB
dB
AM-AF output S/N
amW
V
IN2 = 74 dBµ, 400 Hz 30%,
AM-AF output −10 dB input change
AM-ATC operation
amATC (Output ratio [dB] of 400 Hz and 3 kHz
when VIN2 = 18 dBµ) − (output ratio
[dB] of 400 Hz and 3 kHz when VIN2
= 74 dBµ)
3.5
6.5
9.5
80%Mod., AM-AFOUT output
AM-distortion rate 1
amT1 VIN2 = 74 dBµ, 400 Hz 80%,
0.01
0.01
96
0.5
0.5
1.5
1.5
%
%
AM-AF output distortion
AM-distortion rate 2
amT2
VIN2 = 130 dBµ, 400 Hz 80%,
AM-AF output distortion
AM wide band AGC on input
amVW fIN2 = 1.4 MHz, input when pin 15
102
108
dBµ
voltage becomes below 3 V
AM local oscillation buffer output amVOS Without input
160
150
210
210
260
270
10
mV
mV
mV
V
AM-IF count output 1
AM-IF count output 2
AM-SD output 1
amIF1 VIN2 = 40 dBµ
amIF2 Without input
amSD1 VIN2 = 40 dBµ
4.5
0.0
1
4.9
0.2
50
5.1
0.5
200
1.3
5.1
35
AM-SD output 2
amSD2 Without input
V
AM signal meter output 1
AM signal meter output 2
AM signal meter output 3
AM search sensitivity DX
amVS1 Without input, pin 5 voltage
amVS2 VIN2 = 30 dBµ, pin 5 voltage
amVS3 VIN2 = 130 dBµ, pin 5 voltage
mV
V
0.8
4.1
23
1.05
4.8
29
V
amDX AM-IF count output is over 120 mV
dBµ
VIN2 when f becomes 450 kHz±2 kHz
AM search sensitivity LO
amLO AM-IF count output is over 120 mV
43
49
55
dBµ
VIN2 when f becomes 450 kHz±2 kHz
Note)
FM tuning condition: Adjust VATU voltage so that VAOSC output frequency becomes 1 450 kHz±500 Hz
3
AN7289NFBQ
ICs for FM/AM Tuner
■ Electrical Characteristics at Ta = 25°C (continued)
• FM mode at VCC = 8.0 V, fIN1 = 98 MHz
Parameter
Symbol
Conditions
Min
140
40
Typ Max
Unit
mV
mV
dBµ
V
FM local oscillation buffer output fmVOS fOSC = 108.7 MHz, without input
200
75
260
110
68
FM-IF output level
fmIF
VIN1 = 71 dBµ
FM-AGC sensitivity
fmAGC VIN1 level when V24 becomes 3 V
fmVAH VIN1 = 70 dBµ
60
64
High-level FM-AGC voltage
Low-level FM-AGC voltage
FM consumption current
6.0
6.4
0.05
35
6.8
0.5
44
fmVAL VIN1 = 82 dBµ
V
fmIT
Without input
26
mA
Note)
FM tuning condition: Adjust VFTU voltage so that VFOSC output frequency becomes 108.7 MHz±10 kHz.
■ Technical Information
• PD
Ta curves of LQFP032-P-0707
PD
Ta
1.600
1.400
1.388
1.200
1.000
0.800
Mounted on standard board
(grass epoxy : 50 mm × 50 mm × t0.8 mm)
Rth(j-a) = 90.0°C/W
0.613
0.600
Independent IC
without heat shink
0.400
0.200
R
th(j-a) = 203.7°C/W
0.000
25
50
75
100
125
150
0
Ambient temperature Ta (°C)
4
ICs for FM/AM Tuner
AN7289NFBQ
■ Application Circuit Example
AM-ANT
AM-VT
10 kΩ
8.2 µH
FM
AM
100 kΩ
4 pF
0.01 µF
1 pF
3 pF
0.047 µF
1000 pF
25
16
15
14
13
VFOSC
0.022 µF
1 µF
0.022 µF
26
VAOSC
MS3
GND2
27
33 pF
28
5.6 kΩ
SFPS-450H
FE-VT
29
12
11
10
9
Keyed-AGC in
10 kΩ
10 kΩ
30
31
32
3.9 kΩ
AM-
AFOUT
0.022 µF
100 µF
0.047 µF
0.1 µF
12 kΩ
Seek on
LO
0.022 µF
510 kΩ
0.22 µF
100 kΩ
DX/LO
5 V
off
DX
VCC
0.1 µF
100 µF
5
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