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Part: AN7293NSC
Category:
Multimedia
-> Audio/Video
-> Audio Tuner
Description: Package =
Company: Panasonic Industrial Company/Electronic Components
Datasheet: Download AN7293NSC datasheet File size : 68 kB
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Datasheet text preview:
ICs for FM/AM Tuner
AN7293NSC
FM-IF, NC, MPX IC for car radio
I Overview
The AN7293NSC is an IC having FM-IF, NC and MPX functions for car radio. A tuner block of car radio can be constructed in combination with the AN7289NFBQ/NSC. Small outline package product (the AN7293NFBQ) is also available.
32 17.81±0.3 17
Unit: mm
7.2±0.3 9.3±0.3
I Features
· A less number of external components is required (8 components reduction compared with our conventional IC) · Neighbouring-station interference characteristics improvement by band-ATC function · Band-mute on/off function
1 16
1.23
1.0 Seating plane
I Applications
· Car radios
SSOP032-P-0375A Note) The package of this product will be changed to lead-free type (SSOP032-P-0375C). See the new package dimensions section later of this datasheet.
I Block Diagram
IF-Count./ST-Ind./SD
0.1±0.1 0.9
0.35±0.1
2.0±0.2
0.15
32
31
30
29
28
27
26
25
24
23
22
21
20
19
18
VREF IF limiter IF det. Mute SD, IF counter Band Mute PNL Noise det.
Level det.
Multipath det.
Demod.
Pilot det.
VCO PLL
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
R-Out
S-Meter Adj.
Forced Mono
ATC Adj.
Sep. Adj.
S-Meter
L-Out
16
17
VBAND
GND
IF In
AFC
VCC
0.3
Publication date: November 2001
SDC00008BEB
1
AN7293NSC
I Pin Description
Pin No. 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 Description Control voltage adjustment Control voltage Multiple-path noise input Multiple-path detection ASC adjustment/forced monaural ATC adjustment Separation adjustment ATC low-pass filter R-channel output L-channel output Mute voltage Pilot detection low-pass filter PLL low-pass filter PLL low-pass filter VCO Pilot cancel control low-pass filter Pin No. 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 Description Band signal output/band mute SW PNL low-pass filter PNL AGC PNL input Detection output PNL output hold SD/FM-IF counter output/stereo indicator SD sensitivity adjustment AFC voltage VCC FM detection Soft mute adjustment GND VREF IF bypass IF input
I Absolute Maximum Ratings
Parameter Supply voltage Supply current Power dissipation
*2 *1
Symbol VCC ICC PD T opr Ts t g
Rating 9.1 45 380.2 -30 to +80 -55 to +125
Unit V mA mW °C °C
Operating ambient temperature Storage temperature
*1
Note) *1 : Ta = 25°C except power dissipation, operating ambient temperature and storage temperature. *2 : Ta = 80°C
I Recommended Operating Range
Parameter Supply voltage Symbol VCC Range 7.2 to 9.0 Unit V
2
SDC00008BEB
AN7293NSC
I Electrical Characteristics at Ta = 25°C
Unless otherwise specified, VCC = 8V, VIN1 is f = 10.70 MHz, Mod. = 1 kHz, 30% FM modulation stereo input is L + R = 90% VP = 10%
Parameter Control voltage (1) Control voltage (2) Control voltage (3) Control voltage (4) Control voltage (5) Control voltage (6) Output level L-channel Output level R-channel Channel balance Residual pilot voltage Stereo lamp turn-on level Separation L-channel Separation R-channel Capture range Counter output level (1) Counter output level (2)
Symbol VC1 VC2 VC3 VC4 VC5 VC6 V OL V OR CB VPC
Conditions Without signal input, pin 2 DC voltage VIN1 = 40 dBµ, pin 2 DC voltage VIN1 = 70 dBµ, pin 2 DC voltage VIN1 = 100 dBµ, pin 2 DC voltage VC5 = VC3 - VC2 VC6 = VC4 - VC3 VIN1 = 70 dBµ, pin 10 AC voltage VIN1 = 70 dBµ, pin 9 AC voltage CB = 20·log (VOL/VOR) VP = 10% modulation, VIN1 = 70 dBµ, pin 22 output voltage
Min 0.0 0.7 2.5 4.5 1.8 1.9 85 85 - 1.0 1.3 25 25 ± 0.4 120 0
Typ 0.3 1.2 3.2 5.3 2.0 2.1 105 105 0 4 4.0 33 33 ±0.7 140 2
Max 0.9 1.7 3.9 5.8 2.2 2.3 125 125 1.0 14 6.3 160 5
Unit V V V V V V mV[rms] mV[rms] dB mV[rms] % dB dB % mV[rms] mV[rms]
LAMPON 19 kHz modulation, Modulation factor at which pin 23 becomes under 1 V SepL SepR CR VIF1 VIF2 L+R = 90%, VP = 10% Larger separation value after changing over pin 7 external resistor Modulation at VP = 6.5% Referred to 19 kHz VIN1 = 100 dBµ, V24 = 2 V pin 23 output voltage VIN1 = 100 dBµ, V24 = 5 V pin 23 output voltage
Monaural THD (L) Monaural THD (R) Stereo THD (L) Stereo THD (R) PNL-AGC voltage (1) PNL-AGC voltage (2) Residual noise voltage
THDL THDR THDSTL THDSTR VAGC1 VAGC2 VNR
VIN2 monaural input, 500 mV[0-p] 1 kHz, L-ch. output distortion factor VIN2 monaural input, 500 mV[0-p] 1 kHz, R-ch. output distortion factor VIN2 stereo input, 500 mV[0-p] 1 kHz, L-ch. output distortion factor VIN2 stereo input, 500 mV[0-p] 1 kHz, R-ch. output distortion factor VIN2 = Without input pin 19 DC voltage Input VIN2 = 100 mV, f = 100 kHz Difference from VAGC1 VIN2 = (pulse width 10 µs, 1 V[p-p] 1 kHz), L-ch. output
SDC00008BEB
1.2 0.1 0.0
0.1 0.1 0.1 0.1 1.4 0.35 0.2
0.3 0.3 0.3 0.3 1.7 0.60 0.7
% % % % V V mV[rms]
3
AN7293NSC
I Electrical Characteristics at Ta = 25°C
Unless otherwise specified, VCC = 8V, VIN1 is f = 10.70 MHz, Mod. = 1 kHz, 30% FM modulation stereo input is L + R = 90% VP = 10%
Parameter SD sensitivity SD bandwidth Supply current Limiting sensitivity ATC Gate pulse width
Symbol SDS S DW ITOT VLIM VATC PW
Conditions VIN1 when V24 = 2 V, V23 > 2 V VIN bandwidth when V24 = 2 V, and V23 > 2 V, VIN1 = 100 dBµ Without input VIN1 input level when pin 9 AC voltage drops by 3 dB L-ch. output ratio when V6 = 2 V and 0 V VIN2 = (pulse width 1 µs, 0.3 V[p-p] 1 kHz) pin 22 output pulse width
Min 68 100 30 24 6 16
Typ 78 130 37 32 10 23
Max 88 160 44 38 14 30
Unit dBµ kHz mA dBµ dB µs
· Design reference data
Note) The following characteristics are the reference values for design and not guaranteed values.
Parameter Stereo lamp turn-off level
Symbol
Conditions
Min 2.0
Typ 6.0
Max 10.0
Unit dB
LAMPOFF Ratio between the modulation factor when pin 23 becomes 2 V or higher and LAMPON VAFC Without signal input, DC potential difference between pin 25 and pin 30
AFC offset voltage
- 0.1
0.0
0.1
V
4
SDC00008BEB
AN7293NSC
I Application circuit Example
IF-Counter ST-Indicator SD
100 µF
470 pF 0.1 µF 0.01 µF 51 k
VBAND
VCC
17
VCO PLL Noise det.
16 15 14
1µF
0.047 µF 18 0.47 µF
CERALOCK (912 k) 0.1 µF
19 20
330 k 0.1 µF 680 pF
0.1 µF
13 10 k
PNL Pilot det.
21 22
12 11
0.1 µF 0.1 µF L-Out 0.022 µF 0.022 µF R-Out 0.01 µF
0.01 µF
23
100 k
SD, IF counter Band Mute
10
Demod.
24
5.6 k 1µF 180 pF(pH) 2.2 k
9 8 7
26 27 28
Mute
25
Sep. Adj. 10 k 0.1µF 50 k 50 k ATC Adj. ASC Adj. Forced Mono 0.1µF
IF det.
6 5
Multipath det.
100 k
GND 29
4 3
1000 pF
30
0.1 µF 0.022 µF
VREF
330 k 100 pF
IF limiter
Level det.
31 32
M53
2 100 k 1 50k
S-Meter Adj. S-Meter
VREF
IF In
AFC
M53
SDC00008BEB
5
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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