TDA1596 查看數據表（PDF） - Philips Electronics
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TDA1596 Datasheet PDF : 20 Pages
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Philips Semiconductors
IF amplifier/demodulator for
FM radio receivers
Product specification
TDA1596
OPERATING CHARACTERISTICS
f = 10.7 MHz; V18(rms) = 1 mV; deviation (∆f) = 22.5 kHz; modulation frequency (fm) = 400 Hz; de-emphasis
(pin 4) = 50 µs; test circuit as per Fig.3; tuned circuit (QL = 19) aligned for symmetrical stop pulses; Tamb = +25 °C;
unless otherwise specified
PARAMETER
AF output voltage (RMS value)
at V18(rms) = 10 mV
Start of limiting (FM, mute-off);
(RMS value) (Fig.11)
Dependence of signal-to-noise ratio
(in noise frequency band 250 Hz to
15 kHz, unweighted) on input voltage
for S/N = 26 dB
for S/N = 46 dB
at V18(rms) = 10 mV; ∆f = 75 kHz
THD (FM, mute-on) at V18(rms) = 10 mV;
∆f = 75 kHz; fm = 1 kHz; without
detuning; without de-emphasis;
I7 = 0 mA
Dynamic mute attenuation (Fig.12)
αD= 20log V--V---4-4---(-(-F-F---M-M----,--m-m----u--u--t-t-e--e---–-–---o--o--f--nf--)-)--
with fm = 100 kHz; ∆f = 75 kHz
Slope of attenuation curve
THD (FM, mute-on) at V18(rms) = 10 mV;
∆f = 75 kHz; fm = 1 kHz;
detuning ≤ ± 25 kHz without
de-emphasis; I7 = 0 mA (Fig.13)
THD (FM, mute-off and compensated via
pin 3) at V18(rms) = 10 mV;
∆f = 75 kHz; fm = 1 kHz;
V7 = V5
Voltage range at pin 3 for THD
compensation
AM suppression (FM, mute-off) with
amplitude modulation at 30%;
input voltage range V18 = 300 µV
to 100 mV (Fig.14)
Power supply ripple rejection
= 20log [∆V1/∆V4]
Mute attenuation (FM-off)
= 20log [V4(FM-on/V4(FM-off)]
SYMBOL
MIN.
TYP.
MAX.
UNIT
V4(rms)
180
200
220
mV
V18(rms)
14
22
35
µV
V18(rms)
−
15
−
µV
V18(rms)
−
60
−
µV
S/N
−
82
−
dB
THD
−
0.1
0.3
%
αD
−
16
−
dB
αD∆f
−
0.8
−
dB/kHz
THD
−
−
0.6
%
THD
V3
−
0.07
0.25
%
0
−
V5
V
−
65
−
dB
33
36
−
dB
60
−
−
dB
April 1991
10
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