Related Manuals for Philips TDA1574T
Summary of Contents for Philips TDA1574T
- Page 1 DATA SHEET TDA1574T Integrated FM tuner for radio receivers Product specification File under Integrated Circuits, IC01 INTEGRATED CIRCUITS August 1990...
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Page 2: General Description
GENERAL DESCRIPTION The TDA1574T is an integrated FM tuner circuit designed for use in the RF/IF section of car radios and home receivers. The circuit contains a mixer and an oscillator and a linear IF amplifier for signal processing. The circuit also incorporates the following features. - Page 3 Philips Semiconductors Integrated FM tuner for radio receivers Coil data L1: TOKO MC-108, 514HNE-150023S14; L = 0.078 H L2: TOKO MC-111, E516HNS-200057; L = 0.08 H L3: TOKO Coil set 7P, N1 = 5.5 5.5 turns, N2 = 4 turns August 1990 Fig.1 Block diagram and test circuit.
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Page 4: Functional Description
Philips Semiconductors Integrated FM tuner for radio receivers PINNING Mixer input 1 Mixer input 2 Wideband information input Ground Voltage reference Oscillator output Oscillator input 1 Oscillator input 2 Buffered oscillator output Not connected Not connected IF output Standby switch... -
Page 5: Thermal Resistance
Philips Semiconductors Integrated FM tuner for radio receivers RATINGS Limiting values in accordance with the Absolute Maximum System (IEC 134); note 1. PARAMETER Supply voltage (pin 17) Mixer output voltage (pins 18 and 19) Standby switch input voltage (pin 13) - Page 6 Philips Semiconductors Integrated FM tuner for radio receivers CHARACTERISTICS = 8.5 V; T = 25 C; measured in test circuit Fig.1; 17-4 All measurements are with respect to ground (pin 4); unless otherwise specified PARAMETER Supply (pin 17) Supply voltage...
- Page 7 Philips Semiconductors Integrated FM tuner for radio receivers PARAMETER Output voltage (pin 12) AC characteristics Input impedance Output impedance Voltage gain Voltage gain with variation of temperature 1 dB compression point (RMS value) at V = 8.5 V at V = 7.5 V...
- Page 8 Philips Semiconductors Integrated FM tuner for radio receivers PARAMETER Wideband threshold (RMS value) (see Figs 3, 4, 5 and 6) at V = 0.7 V; /2; I Oscillator output buffer (pin 9) DC output voltage Oscillator output voltage (RMS value) at R = oo;...
- Page 9 Philips Semiconductors Integrated FM tuner for radio receivers Fig.3 Keyed AGC output voltage V of RMS input voltage V circuit Fig.1 at V = 0.7 V; I Fig.5 Keyed AGC output current I of RMS input voltage V circuit Fig.1 at V = 0.7 V;...
- Page 10 Integrated FM tuner for radio receivers Coil data L1: TOKO MC-108, N1 = 5.5 turns, N2 = 1 turn L2: see Fig.1 L3: see Fig.1 (1) Field strength indication of main IF amplifier. August 1990 Fig.7 TDA1574T application diagram. Product specification TDA1574T...
- Page 11 Philips Semiconductors Integrated FM tuner for radio receivers PACKAGE OUTLINE SO20: plastic small outline package; 20 leads; body width 7.5 mm pin 1 index DIMENSIONS (inch dimensions are derived from the original mm dimensions) UNIT max. 0.30 2.45 2.65 0.25 0.10...
- Page 12 Philips Semiconductors Integrated FM tuner for radio receivers SOLDERING Introduction There is no soldering method that is ideal for all IC packages. Wave soldering is often preferred when through-hole and surface mounted components are mixed on one printed-circuit board. However, wave soldering is not always suitable for surface mounted ICs, or for printed-circuits with high population densities.
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Page 13: Life Support Applications
Philips customers using or selling these products for use in such applications do so at their own risk and agree to fully indemnify Philips for any damages resulting from such improper use or sale.