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TDA1576 데이터시트(Datasheet) 6 Page - NXP Semiconductors

부품명 TDA1576
상세내용  FM/IF amplifier/demodulator circuit
PDF  16 Pages
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제조사  PHILIPS [NXP Semiconductors]
홈페이지  http://www.nxp.com
Logo 

 
 6 page
background image
1998 Nov 18
6
Philips Semiconductors
Product specification
FM/IF amplifier/demodulator circuit
TDA1576
CHARACTERISTICS
VP = 7.5 to 20 V; fIF = 10.7 MHz; RS =60 Ω; fm = 400 Hz with ∆f= ±22.5 kHz; 50 µs de-emphasis (C8−9 = 6.8 nF);
Tamb =25 °C and measurements taken in Fig.1; unless otherwise specified. The demodulator circuit is adjusted at
minimum second harmonic distortion for ViIF = 1 mV and a deviation ∆f= ±75 kHz.
SYMBOL
PARAMETER
CONDITIONS
MIN.
TYP.
MAX.
UNIT
Supply
IP
supply current without load
I12 =I13 = 0; VP = 8.5 V
101623mA
I12 =I13 = 0; VP = 15 V
12
18
25
mA
IF amplifier/detector
ViIF(rms)
input sensitivity (RMS value; pin 15)
−3 dB before limiting
22
30
µV
=26dB
8
−µV
=46dB
35
−µV
VoIF(p-p)
output voltage at pins 3 and 7
(peak-to-peak value)
Z3, 7 = 10 pF parallel to
1M
680
mV
R3-7
output resistance
250
−Ω
Z4-6
input impedance
30
k
C4-6
input capacitance
1
pF
R8, 9
output resistance
3.7
k
V8, 9
DC output voltage
VP = 8.5 V
5.5
V
VP =15V
9.8
V
VoAF(rms)
AF output voltage (RMS value)
QL = 20; VP = 8.5 V
606775mV
QL = 20; VP = 15 V
120
135
150
mV
THD
total harmonic distortion
single tuned circuit
QL =20
0.1
%
two tuned circuits
0.02
%
signal plus noise-to-noise ratio
(pins 8 and 9)
B = 250 Hz to 15 kHz;
Vi > 1 mV (RMS); VP = 8.5 V
76
dB
B = 250 Hz to 15 kHz;
Vi > 1 mV (RMS); VP =15V
80
dB
α
AM
AM suppression
ViIF =10mV;
FM: 70 Hz;
∆f= ±22.5 kHz;
AM: 1 kHz; m = 30%; note 1
54
dB
ViIF
IF input voltage
α > 40 dB
0.5
500
mV
α
100
hum suppression at f = 100 Hz
VP = 100 mV (RMS);
C2 =47 µF
43
48
dB
AFC tuning slope at QL =20
VP = 8.5 V
8.5
mV/kHz
VP =15V
17
mV/kHz
SN
+
N
--------------
SN
+
N
--------------
SN
+
N
--------------
V
89
f
o
-----------------




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