TDA1572 데이터 시트보기 (PDF) - Philips Electronics
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TDA1572 Datasheet PDF : 19 Pages
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Philips Semiconductors
AM receiver circuit
Product specification
TDA1572
CHARACTERISTICS
VP = V15-18 = 8,5 V; Tamb = 25 °C; fi = 1 MHz; fm = 400 Hz; m = 30%; fIF = 460 kHz; measured in test circuit of Fig.1; all
voltages referenced to ground; unless otherwise specified.
PARAMETER
SYMBOL
MIN.
TYP.
MAX. UNIT
Supply
Supply voltage (pin 15)
Supply current (pin 15)
RF stage and mixer (pins 16 and 17)
DC input voltage
RF input impedance at V < 300 µV
RF input capacitance
RF input impedance at VI > 10 mV
RF input capacitance
IF output impedance (pin 1)
IF output capacitance
Conversion transconductance
before start of AGC
Maximum IF output voltage, inductive
coupling to pin 1 (peak-to-peak value)
DC value of output current;
at VI = 0 V (pin 1)
AGC range of input stage
RF signal handling capability:
(r.m.s. value): input voltage
for THD = 3% at m = 80%
Oscillator
Frequency range
Oscillator amplitude (pins 13 to 14)
External load impedance (pins 14 to 13)
External load impedance for no
oscillation (pins 14 to 13)
Ripple rejection at VP(rms) = 100 mV;
fp = 100 Hz
(SVRR = 20 log [V15/V13])
Source voltage for switching diodes
(6 × VBE) (pin 13)
DC output current (for switching
diodes) (pin 13)
Change of output voltage at
∆l13 = 20 mA (switch to maximum load)
(pin 13)
VP
IP
VI
Zi
Ci
Zi
Ci
Zo
Co
I1/Vi
V1-15(p-p)
IO
Vi(rms)
fosc
V
R(ext)
R(ext)
RR
V
−IO
∆VI
7,5
8,5
18,0
V
15
23
30
mA
−
VP/2
−
−
5,5
−
−
25
−
−
8
−
−
22
−
200
−
−
−
6
−
−
6,5
−
−
5
−
−
1,2
−
−
30
−
V
kΩ
pF
kΩ
pF
kΩ
pF
mA/V
V
mA
dB
−
500
−
mV
0,1
−
60
MHz
−
130
150
mV
0,5
−
200
kΩ
−
−
60
Ω
−
55
−
dB
−
4,2
−
V
0
−
20
mA
−
0,3
−
V
December 1987
6
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