Filter
Top Products
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 mixer converts 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.
V
CCD
reserved
V
CCA
LL1
R/W V
CC1
DATA V
CC1
CLOCK LR1
MPX n.c.
AUDL n.c.
AUDR n.c.
LED GND
001aaa667
1
2
3
4
5
6
7
8
9
10
11
12
14
13
16
15
18
17
20
19
22
21
24
23