U4240B Datasheet, PDF (4/8 Pages) TEMIC Semiconductors – AM - RECEIVER

U4240B
TELEFUNKEN Semiconductors
Parameters
Test Conditions / Pins
W Oscillator frequency output, R_L10 = 2.2 k Pin 12
Output voltage
DC output voltage
Output resistance
Output current
IF amplifier and demodulator
Symbol Min.
V_O
V_O
R_O
I_O
DC input voltages
Pins 3 and 4
V_i
Input impedance
Pins 3
R_i
2.4
C_i
Maximum IF input voltage m = 80%, d = 3%, Pin 3
V_i
IF output voltage,
V_i = 10 mV (Pin 3/4)
without load
Pin 10
V_o
230
IF output resistance
Pin 10
R_o
Control range
DV_oAF = 6 dB
DV_i
Audio output voltage,
without load
V_i = 1 mV (Pin 3/4)
Pins 6 and 9
V_o
Audio output resistance
Pin 6
Pin 9
R_o
2.9
9
Field strength indication
DC indicator voltages
Output current capability
Output resistance
Pin 11
R_L11
R_L11
=
=
2.7
2.7
kW,
kW,
V_i
=
0
V_i = 500 mV
– I_o = 0.5 mA
V_o
2.5
I_o
2.0
R_o
Reverse voltage at the
output
" x ^{AM switch OFF,}
I_o 1 mA
V_o
Standby switch
Pin 2
Switching voltage
V_I
Required control voltage
Input current
1)
or open input
AM-ON
AM-OFF
AM-ON, V₂ = 0
AM-OFF, V₂ = 12 V ¹⁾
V_I
V_I1)
3.5
"– II
I_I
Typ.
320
0.9
170
2
3
7
55
280
50
50
310
3.5
12
100
2.8
150
6
4 V_BE
(2.75)
Max.
3
3.9
340
4.2
15
3.1
2
200
10
Unit
mV_pp
V
W
mA_p
V
kW
pF
mV
mV
W
dB
mV
kW
mV
V
mA
W
V
V
V
mA
4 (8)
Rev. A1: 12.07.1995