AN7289 データシートの表示（PDF） - Panasonic Corporation
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AN7289 Datasheet PDF : 4 Pages
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ICs for FM/AM Tuner
AN7289NSC
s Electrical Characteristics at Ta = 25°C
1. AM mode VCC = 8.0 V, fIN = 1 MHz
AM tuning condition: OSC output frequency = 1 450 kHz ±500 Hz
Parameter
Symbol
Conditions
Min Typ Max Unit
AM consumption current
AM-AF output
amIt1
amVO
Without input
AM-AF output at VIN2 = 74 dBµ,
400 Hz 30%
28 36 44 mA
100 125 155 mA
AM signal-to-noise ratio
amSN AM-AF output S/N at VIN2 = 74 dBµ, 48 52 58 dB
400 Hz 30%
AM-AGC width
AM-ATC operation
amW AM-AF output when input changes 55 59 63 dB
−10 dB at VIN2 = 74 dBµ, 400 Hz 30%
amATC (Output ratio [dB] of 400 Hz and
3.5 6.5 9.5 dB
3 kHz when VIN2 = 18 dBµ) − (Output
ratio [dB] of 400 Hz and 3 kHz when
VIN2 = 74 dBµ) 80% Mod., AM-AF Out
output
AM-distortion 1
amT1 VIN2 = 74 dBµ 400 Hz 80%
AM-AF output distortion
0.01 0.5 1.5 %
AM-distortion 2
amT2 VIN2 = 130 dBµ 400 Hz 80%
AM-AF output distortion
0.01 0.5 1.5 %
AM wide band AGC on input
amVW fIN2 = 1.4 MHz Input when pin 15
voltage becomes below 3 V
97 103 109 dBµ
AM local oscillation buffer output amVOS Without input
160 210 260 mV
AM-IF count output 1
AM-IF count output 2
AM-SD output 1
amIF1
amIF2
amSD1
VIN2 = 40 dBµ
Without input
VIN2 = 40 dBµ
150 210 270 mV
10 mV
4.5 4.9 5.1 V
AM-SD output 2
amSD2 Without input
0.0 0.2 0.5 V
AM signal meter output 1
amVS1 Without input, pin 9 voltage
1 50 200 mV
AM signal meter output 2
AM signal meter output 3
AM search sensitivity DX
amVS2 Pin 9 voltage at VIN2 = 30 dBµ
0.7 0.95 1.2 V
amVS3 Pin 9 voltage at VIN2 = 130 dBµ
4.1 4.8 5.1 V
amDX AM-IF count output is 120 mV or over 24 30 36 dBµ
VIN2 when f becomes 450 kHz ±2 kHz
AM search sensitivity LO
amLO AM-IF count output is 120 mV or over 44 50 56 dBµ
VIN2 when f becomes 450 kHz ±2 kHz
3
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