A3848EEQ View Datasheet(PDF) - Allegro MicroSystems
Part Name
Description
Manufacturer
A3848EEQ Datasheet PDF : 3 Pages
| |||
3848
DUAL-CONVERSION AM RECEIVER
ELECTRICAL CHARACTERISTICS at TA = +25°C, VCC = 10 V, fo = 1 MHz, fif1 = 10.7 MHz,
fif2 = 450 kHz, Vin = 10 mV; fm = 1 kHz , Mod = 30% (except as noted).
Characteristic
Supply Current
Sensitivity
Usable Sensitivity
Recovered Audio
Total Harmonic Dist.
Oscillator Output
Stop Output Voltage
Stop Sensitivity
Stop Bandwidth
Wide-Band AGC
Field-Strength
Indicator
Output Voltage
(unmodulated,
AGC Reset Low)
Field-Strength
Indicator
Output Voltage
(unmodulated,
AGC Reset High)
Overload
-3dB Limiting
IF Output Voltage
FM Recovered Audio
Signal to Noise Ratio
AGC Figure of Merit
Symbol
ICC
Vin
Vin
Vout
THD
Vo
VSTP
Vstp
BWSTP
VAGC
VFSI
VFSI
Vin
Vin
Vout
Vout
S+N/N
FOM
Test Conditions
I2, Vin = 0
I2, Vin = 0, V27 = 0 (Muted)
Vout = 50 mV
S + N/N = 20 dB
Mod = 90%
V17
V8, Vin = 0
V8, Mod = 0%
V12 = 2.5 V, Mod = 0%
V8 = 2.5 V, = 0%
Vin = 0
Vin = 11 mV, Mod = 0%
Vin = 26 mV, Mod = 0%
Vin = 0
Vin = 30 µV, Mod = 0%
Vin = 100 µV, Mod = 0%
Vin = 1 mV, Mod = 0%
Vin = 10 mV, Mod = 0%
Vin = 0
Vin = 30 µV, Mod = 0%
Vin = 100 µV, Mod 0%
Vin = 1 mV, Mod = 0%
Vin = 10 mV, Mod = 0%
Vout = 3% THD, Mod = 90%
First Mixer (Note 2)
Mod = 3 kHz peak deviation
Vin = 1 mV
V7, Mod = 3 kHz peak deviation
Vin = 1 mV
Vin = 10 mV
Ref. at Vin = 10 mV, Vin for Vout = -10 dB
Limits
Min Typ Max
—
50
65
—
1.0
6.0
—
6.0
10
—
14
21
165
215
265
—
0.4
2.0
80
120
—
4.7
5.0
—
—
0.10 0.16
30
45
60
5.0
6.5
8.0
5.0
6.7
8.0
3.7
5.0
—
—
—
1.0
—
0.1
0.4
0.25 0.60 1.05
1.1
1.6
2.2
1.8
2.5
3.2
3.1
3.7
4.4
—
—
0.5
0.9
1.1
1.5
1.3
1.6
2.0
2.3
2.9
3.5
2.5
3.7
4.0
60
100
—
350
450
—
—
12
—
200
250
320
—
380
—
50
53
—
53
56
—
7.0
10
14
Units
mA
mA
µV
µV
mV
%
mV
V
V
µV
kHz
V
V
V
V
V
V
V
V
V
V
V
V
V
mV
mV
µV
mV
mV
dB
dB
µV
Continued next page...
115 Northeast Cutoff, Box 15036
Worcester, Massachusetts 01615-0036 (508) 853-5000
Copyright © 1993, Allegro MicroSystems, Inc.
Share Link: 