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Part: AN7273S
Category:
Multimedia
-> Audio
-> Receivers
-> AM/FM Receiver
Description: am Tuner, Fm/am if Amplifier Circuit
Company: Panasonic Industrial Company/Electronic Components
Datasheet: Download AN7273S datasheet File size : 80 kB
Request For quote: Find where to buy AN7273S
Datasheet text preview:
ICs for FM/AM Tuner
AN7273, AN7273S
0.5±0.1 3.8±0.25
0.3 0.
+ 0.1 5 02
AM Tuner, FM/AM IF Amplifier Circuit
s Overview
The AN7273 and the AN7273S are the ICs designed for Hi-Fi stereo tuner. They are functioned with stop signal pin besides the AN7223S function.
AN7273
1 2 3 21.7±0.3 4 5 6 7 8 9 6.3±0.25 18 17 16 15 14 13 12 11 10
Unit : mm 1.2±0.25
s Features · Level meter output (FMAM common use) · Stop signal output (for synthesizer tuner) · AM : including RF amplifier and high sensitivity · Low power consumption · Low shock noise level from function switch operation · Fewer external parts
0.51min. (3.45)
3 ~ 15° 7.62±0.25 18-Lead DIP Package (DIP018-P-0300E)
AN7273S
1.3 1 18
0.4±0.25
1.27
9 0.1
10 1.2±0.3 0.15 5.4±0.3 7.7±0.3 14 VCC 17 VREF 16 13 15 10 11 GND 0.65
0.3
18-Lead SOP Package (SOP018-P-0300)
s Block Diagram
8 9 12
1 7
AMFM IF Amp.
FM IF Amp.
FM Quad. Det.
Mute Det.
Level Meter
Mute or Shock Noise Canceller
AF Amp.
4 3
AM RF Amp.
AM Mixer
AM L. Osc.
AGC
AM Det.
5
18
6
2 VCC (AM)
12.6±0.3
2.54 Unit : mm
AN7273, AN7273S
s Pin Descriptions
Pin No. 1 2 3 4 5 6 7 8 9 Pin Name FM IF Input AM Supply/Mute Adjustment AM RF Input AM Mixer Output AGC Output (2) AGC Output (1) AM IF Input IF By-pass IF By-pass Pin No. 10 11 12 13 14 15 16 17 18 GND FM Detection Coil AF Output VCC Level Meter Output AFC Output Reference Voltage Local Oscillation Coil Pin Name AM Detection Output
ICs for FM/AMTuner
s Absolute Maximum Ratings (Ta=25°C)
Parameter Supply Voltage Supply Current Power Dissipation Operating Ambient Temperature Storage Temperature *1 Ta = 25°C, *2 Ta = 75°C AN7273 AN7273S AN7273 AN7273S AN7273 AN7273S Symbol VCC ICC PD Topr Tcsg Rating 14.4 30 317 *1 210 *2 20 ~ + 75 20 ~ + 75 55 ~ + 150 55 ~ + 125 Unit V mA mW °C °C
s Recommended Operating Range (Ta = 25°C)
Parameter Operating Supply Voltage Range Symbol VCC (opr) Range 3 ~ 12V
s Electrical Characteristics (VCC= 5V, Ta= 25°C)
Parameter Total Circuit Current Demodulation Output Level FM Limiting Sensitivity Muting Sensitivity Level Meter Driving Output (1) Level Meter Driving Output (2) Total Circuit Current Detection Output Level AM Max. Sensitivity Level Meter Driving Output (1) Level Meter Driving Output (2) Symbol Itot VO Vi (lim) Vi (Mute) V1511 V1511 Itot VO Smax. V1511 V1511 Condition DC measurement Vi =80dBµ Input at VO = 3dB Input at VO =more than 20dB Vi =70dBµ Vi =100dBµ DC measurement Vi =80dBµ Input at VO =10mV Vi = 10dBµ Vi =80dBµ min. 9 75 43.5 55 0.61 1.14 8 60 4 0 1.12 1.25 typ. 14 100 46 64 0.8 1.26 13 80 9.5 max. 20 125 49.5 73 1.1 1.42 19 100 15 130 1.38 Unit mA mV dBµ dBµ V V mA mA dBµ mV V
Note) Unless otherwise specified, fi =10.7MHz, Mod. = 22.5kHz, fm = 400Hz (FM) fi =1MHz, Mod. = 30%, fm = 400Hz (AM)
ICs for FM/AMTuner
AN7273, AN7273S
VO, Vno, THD Vi (FM)
Output Voltage VO (dB), Output Noise Voltage Vno (dB) Output Voltage VO (dB), Signal to Noise Ratio S/N (dB) 0 10 VO 20 30 40 50 60 70 THD 80 0 20 40 60 80 100 0 120 Vno 10
VO, S/N, THD Vi (AM)
1.6 VO 0 S/N 10 20 30 40 50 60 70 THD Mod. = 80% Level meter Voltage V15 (V) 0dB = 81mV VCC = 5V fm = 400Hz fi = 1MHz 12 Total Harmonic Distortion THD (%) 10 8 6 4 2 Mod. = 30% 0 20 40 60 80 100 0 120 1.4 1.2 1.0
V15 Vi
VCC = 5V (AM) fi = 1MHz fm = 400Hz, 30% (FM) fi = 10.7MHz fm = 400Hz, 22.5kHz AM FM 0.8 0.6 0.4 0.2 0
4 3 2 1
Total Harmonic Distortion THD (%)
VCC = 5V fi = 10.7MHz fm = 22.5kHz, 400Hz 0dB = 108mV
5
0
20
40
60
80
100
120
Input Voltage Vi (dBµ)
Input Voltage Vi (dBµ)
Input Voltage Vi (dBµ)
Vi (lim), VO, Itot VCC (FM)
140 Input Limiting Voltage Vi (lim) (dBµ) 50 14 140 Output Voltage VO (mV) 120 100 Input Voltage Vi (dBµ) 80 60 40 28 24 20
VO, Vi, Itot VCC (AM)
12 10 Total Circuit Current Itot (mA) fm = 400Hz, 30% fi = 1MHz
I tot (M
48
ute O
N)
ute O FF)
Output Voltage VO (mV)
120
I tot (M
8 46 Vi (lim) 4 44 2 VCC = 5V fi = 10.7MHz 0 fm = 400Hz, 22.5kHz 0 2 4 6 8 10 12 14 16 6
VO (Vi = 80
dBµ)
14 13 12
100
Itot 16 12 0 2 4 11
80
Vi (at V = O 10mV )
6 8
10
60
10 12 14 16
Supply VoltageVCC (V)
Supply Voltage VCC (V)
VO Vi
0 Mute OFF 10
VO Df
Mute OFF 0
Mute ON 20 Output Voltage VO (dB) Output Voltage VO (dB) 10 20 Mute ON 30 40 50 60 80 70 300 200 100
40
60
0
20
40
60
80
100
120
0
100
200
300
Input Voltage Vi (dBµ)
Input Frequency Change Df (kHz)
Total Circuit Current Itot (mA)
VO
AN7273, AN7273S
s Application Circuit
FM AM V15
10µF
ICs for FM/AMTuner
47 100µF
100µF
0.022 µF
VCC=5V + 0.022µF 0.0047µF T1
2.2k 470 0.01 µF
+
5.1k
0.022µF
2.2µF
+ +
47µF +
VO (FM, AM) 27k
D1 : MA27W
T2
51 18 17
0.022µF 12 11 10
D1 16 15 14 13
AN7273/S
1 2 3 4 + 2k From FM Front End. 330 10k Mute ON OFF T3 CF1 5 100µF 6 + 7 4.7µF 8 9
0.022µF
0.022µF
s Printed Circuit Board Layout
FM IF Input C1 AM ANT 330 CF1 T3 100µF 4.7µF 47pF 1 SW FM AM 2.2k Mute Adj. IN T2 AM 18 10µF 22µF 0.022µF 0.022µF 0.022µF 0.022µF
AN7273
ANT
OSC CF2
5.1k
2.2k
T1 VCC 1µF + 27k 0.01µF AF Output
0.022µF
0.0047µF
10k 100µF
47µF
47
470 0.022µF 100µF
Mute SW
MA27W (Matsushita) VCC
ICs for FM/AMTuner
s Coil Specifications
Symbol Use, Freq. FM Quad. Coil 10.7MHz Type No. Maker
AN7273, AN7273S
Connection Diagram Number of Turns Tuning Cap. 1 4 1 2 8T 2 3 5T 4 6 3T
Unloaded Q
T1
ELF 7S752A
Matsushita
2 3 3 6 4
100pF
90±20%
T2
AM MW Osc. Coil
ELL 7S754
Matsushita
2 1 3 6 4
1 2 4T 2 3 125T 4 6 7T
--
95±20%
T3
AM Mix. Output 455kHz
EIA 7S802A
Matsushita
2 1 6
3 2 35T 6 4 10T 2 1 19T
1500pF
60±30%
s Ceramic Filter Specification
Symbol CF1 Use AM IF Type No. CFM2 455B Maker Toko Center Freq. 455kHz Band Width 7kHz (6dB) Loss 2.6dB
Others parts begin by an
AN-1 AN-2 AN-3 AN-4 AN-5 AN-6 AN-7 AN-8
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