TDA1596 Ver la hoja de datos (PDF) - Philips Electronics
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Fabricante
TDA1596 Datasheet PDF : 20 Pages
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Philips Semiconductors
IF amplifier/demodulator for
FM radio receivers
Product specification
TDA1596
CHARACTERISTICS
f = 10.7 MHz; VP = V1-15 = 8.5 V; VI = V18(rms) = 1 mV; Tamb = 25 °C; measured in the circuit of Fig.3; tuned circuit at
pins 9, 10 aligned for symmetrical stop pulses; all voltages are referred to ground (pin 15); unless otherwise specified
PARAMETER
SYMBOL
MIN.
TYP.
MAX.
UNIT
Supplies
Supply voltage
Supply current at I2 = I7 = 0 mA
VP = V1
7.5
8.5
12.0
V
I1
−
20
26
mA
FM demodulator
Input impedance
DC output voltage (no-signal
R9-10
C9-10
25
40
55
kΩ
−
6
−
pF
condition) at
V9, 10(p-p) ≤ 100 µV;
V18(rms) ≤ 5 µV
Output impedance
Mute attenuator control voltage
V4
R4-15
2.75
3.10
3.45
V
−
400
−
Ω
Control voltage (pin 14)
at V18(rms) ≤ 5 µV
at V18(rms) = 1 mV
Output impedance (pin 14)
Level shift input (pin 2)
V14
−
V14
−
R14-15
−
2.0
−
V
3.45
−
V
−
2.0
MΩ
internal bias voltage at I2 = 0 mA
V2
−
1.4
−
V
input impedance
R2-15
15
−
−
kΩ
Internal muting (Fig.4)
Internal attenuation of signals
± 22.5 kHz ≤ detuning ≤ ± 80 kHz
A = 20log[∆V4(FM mute-off)/∆V4(FM)]
at V14 ≥ 1 V5
at V14 = 0.77 V5
at V14 = 0.55 V5
Attack and decay (pin 14)
Pin 11 connected to ground *
charge current
discharge current
Pin 11 connected to Vref
charge current
discharge current
A
A
A
+ I14
−I14
+ I14
−I14
−
0
−
dB
1.5
3.0
4.5
dB
−
20
−
dB
−
8
−
µA
−
120
−
µA
−
100
−
µA
−
120
−
µA
April 1991
7
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