Philips Semiconductors
Integrated FM tuner for radio receivers
Product specification
TDA1574
GENERAL DESCRIPTION
The TDA1574 is a monolithic integrated FM tuner circuit designed for use in the r.f./i.f. section of car radios and
home-receivers. The circuit comprises a mixer, oscillator and a linear i.f. amplifier for signal processing, plus the following
additional features.
Features
• Keyed automatic gain control (a.g.c.)
• Regulated reference voltage
• Buffered oscillator output
• Electronic standby switch
• Internal buffered mixer driving.
QUICK REFERENCE DATA
Supply voltage range (pin 15)
Mixer input bias voltage (pins 1 and 2)
noise figure
Oscillator output voltage (pin 6)
output admittance at pin 6 for f = 108,7 MHz
Oscillator output buffer
D.C. output voltage (pin 9)
Total harmonic distortion
Linear i.f. amplifier output voltage (pin 10)
noise figure at RS = 300 Ω
Keyed a.g.c. output voltage range (pin 18)
VP
V1, 2-4
NF
V6-4
Y22
7 to 16 V
typ.
1V
typ.
9 dB
typ.
2V
typ. 1,5 + j2 mS
V9-4
THD
V10-4
NF
V18-4
typ.
6V
typ.
−15 dBC
typ.
4,5 V
typ.
6,5 dB
+ 0,5 to VP − 0,3 V
PACKAGE OUTLINE
18-lead DIL; plastic (SOT102); SOT102-1; 1996 August 08.
February 1985
2