Block diagram, Tea5880ts, Bloc k dia gram – Philips TEA5880TS User Manual
Page 4: Philips semiconductor s
xxxx xxxxxxxxxxxxxxxxxxxxxxxxxxxxxx x xxxxxxxxxxxxxx xxxxxxxxxx xxx xxxxxx xxxxxxxxxxxxxxxxxxxxxxx xxxxxxxxxxxxxxxxxxxxxx
xxxxx xxxxxx xx xxxxxxxxxxxxxxxxxxxxxxxxxxxxx xxxxxxxxxxxxxxxxxxxxxx xxxxxxxxxxx xxxxxxx xxxxxxxxxxxxxxxxxxx
xxxxxxxxxxxxxxxx xxxxxxxxxxxxxx xxxxxx xx xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx xxxxxxxxxxxxxxxxxxxxxxxx xxxxxxx
xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx xxxxxxxxxxx xxxxx x x
9397 750 13022
© K
oninklijk
e Philips Electronics N.V
. 2004. All r
ights reser
v
ed.
Preliminar
y data sheet
Re
v
. 02 — 26 April 2004
4 of 27
Philips Semiconductor
s
TEA5880TS
Integrated FM stereo radio IC f
or host pr
ocessor tuning
5.
Bloc
k dia
gram
Depending on the antenna design the filter components at pins 1 and 2 may not be necessary. The only two remaining coils connected to pin
17 to 20 can be replaced by printed-circuit board traces that will fit underneath the TEA5880TS resulting in a design without any external
components; see
for details on the printed-circuit board coils.
Fig 1.
Block diagram.
001aaa665
QUADRATURE
MIXER
STABILISATOR
QUADRATURE
OSCILLATOR
TUNING
SYSTEM
SELECTIVITY
DEMODULATOR
POWER
SWITCH
STEREO
DECODER
DE-EMPHASIS
50/75
µ
s
DIGITAL
INTERFACE
MICROCONTROLLER
DE-EMPHASIS
15 kHz
MIXER
LEVEL VOLTAGE
GENERATOR
10
TEA5880TS
11
9
5
6
8
7
21
17
18
19
20
1
2
4
3, 13, 24
V
CCA
RFIN
RFGND
LR1
V
CC1
V
CC1
LL1
reserved
R/W
CLOCK
AUDL
AUDR
MPX
DATA
V
CCD
GND
LED
n.c.
12
14, 15, 16, 22, 23