TDA1572 Просмотр технического описания (PDF) - Philips Electronics
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TDA1572 Datasheet PDF : 19 Pages
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Philips Semiconductors
AM receiver circuit
PARAMETER
Buffered oscillator output (pin 12)
DC output voltage
Output signal amplitude
(peak-to-peak value)
Output impedance
Output current
IF, AGC and AF stages
DC input voltage (pins 3 and 4)
IF input impedance (pins 3 to 4)
IF input capacitance
IF input voltage for
THD = 3% at m = 80% (pins 3 and 4)
IF output impedance (pin 10)
Unloaded IF output voltage
at Vi = 10 mV (pin 10)
Voltage gain before start of AGC
(pins 3 to 4; 6 to 18)
AGC range of IF stages: change of
V3-4 for 1 dB change of Vo(AF);
V3-4 (ref) = 75 mV
AF output voltage at V3-4(IF) = 50 µV
AF output voltage at V3-4(IF) = 1 mV
AF output impedance (pin 6)
Indicator driver (pin 11)
Output voltage at Vi = 0 mV;
RL = 2,7 kΩ
Output voltage at Vi = 500 mV;
RL = 2,7 kΩ
Load resistance
Standby switch
Switching threshold at;
VP = 7,5 to 18 V
Tamb = −40 to +80 °C
ON-voltage
OFF-voltage
ON-current at V2-1 = 0 V
OFF-current at V2-1 = 20 V
December 1987
Product specification
TDA1572
SYMBOL
MIN.
TYP.
MAX. UNIT
VO
Vo(p-p)
ZO
−IO(peak)
VI
Zi
Ci
Vi
Zo
Vo
Gv
−
0,8
−
V
−
320
−
mV
−
170
−
Ω
−
−
3
mA
−
2,0
−
V
2,4
3,0
3,9
kΩ
−
7
−
pF
−
90
−
mV
−
50
−
Ω
180
230
290
mV
−
68
−
dB
∆Vv
Vo(AF)
Vo(AF)
Zo
−
55
−
dB
−
130
−
mV
−
310
−
mV
2,8
3,5
4,2
kΩ
Vo
−
−
140
mV
Vo
2,5
2,8
3,1
V
RL
1,5
−
−
kΩ
V2-1
0
−
2,0
V
V2-1
3,5
−
20,0
V
−I2
−
100
200
µA
I2
−
−
10
µA
7
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