9397 750 13022 © Koninklijke Philips Electronics N.V. 2004. All rights reserved.
Preliminary data sheet Rev. 02 — 26 April 2004 7 of 27
Philips Semiconductors TEA5880TS
Integrated FM stereo radio IC for host processor tuning
7. Functional description

7.1 FM quadrature mixer

The FM quadrature mixerconverts FM RF (76 MHz to 108 MHz) to an IF of 110 kHz. The

FM quadrature mixer provides inherent image rejection.

7.2 Quadrature oscillator

The internally tuned LC VCO provides the Local Oscillator (LO) signal for the FM

quadrature mixer. The VCO frequency range is 150 MHz to 217 MHz.

7.3 Selectivity

Fully integrated I and Q channel IF filter.

7.4 Demodulator

The FM quadrature demodulator is an integrated PLL demodulator.

7.5 Level voltage generator and analog-to-digital converter

The level voltage is analog-to-digital converted with 3 bits and output via the data line.

7.6 IF counter

The IF counter outputs a 16-bit count result via the data line.

7.7 Mute

The digital interface controls the audio mute and output level.

Fig 3. Pin configuration.
TEA5880TS
RFIN GND
RFGND n.c.
GND n.c.
VCCD reserved
VCCA LL1
R/W VCC1
DATA VCC1
CLOCK LR1
MPX n.c.
AUDL n.c.
AUDR n.c.
LED GND
001aaa667
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