August 1990 8
Philips Semiconductors Product specification
Integrated FM tuner for radio receivers TDA1574T
Notes to the characteristics
1. Power gain conversion is equated by the following equation:
2. Voltage gain is equated by the following equation:
Wideband threshold
(RMS value)
(see Figs 3, 4, 5 and 6)
at V14 = 0.7 V;
V20 = VP/2; I20 = 0 EMF2(rms) −17 −mV
Oscillator output buffer
(pin 9)
DC output voltage V9−6−V
Oscillator output voltage
(RMS value)
at RL= oo; CL= 2 pF V9(rms) −110 −mV
at RL= 75 ΩV9(rms) 30 50 −mV
DC output resistance R9-17 −2.5 −kΩ
Signal purity
Total harmonic distortion THD −−15 −dB
Spurious frequencies
at EMF 1 = 1 V; RS1 = 50 ΩfS−−35 −dB
Electronic standby switch
(pin 11)
Oscillator; linear IF
amplifier; AGC Tamb =−40
to + 85 °C
Input switching voltage
for threshold ON V20 = > VP−3 V V13 0−2.3 V
for threshold OFF V20 = < 0.5 V V13 3.3 −23 V
Input current
at ON condition V13 = 0 V −I13 −−150 µA
at OFF condition V13 = 23 V −I13 −−10 µA
Input voltage I13 = 0 V13 −−4.4 V
PARAMETER CONDITIONS SYMBOL MIN. TYP. MAX. UNIT
10 4V
M out()
10.7MHz()
2
EMF1 98 MHz()
2
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RML
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log
20 V12
V16 15–
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