2004
Sep
13
5
Philips Semiconductors
Product specification
Lo
w-po
w
er FM stereo r
adio f
o
r
handheld applications
TEA5768HL
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5
BLOCK DIA
GRAM
mhc275
I/Q-MIXER
1st FM
IF CENTRE
FREQUENCY
ADJUST
100 pF
22 nF
V
CCA
28
25
26
27
24
23
22
21
20
27 pF
L1
47 pF
22
µ
F
29
30
31
32
RFI1
I
gain
AGND
FM antenna
V
CCA
RFGND
RFI2
TAGC
LOOPSW
1
2
VCOTANK1
3
4
CPOUT
VCOTANK2
V
CC(VCO)
5
6
7
8
DATA
V
CCD
DGND
CLOCK
AGC
programmable divider output
reference frequency divider output
TUNING SYSTEM
4.7 nF
47 nF
47 nF
33 nF
19
18
17
LIMDEC2
LIMDEC1
TIFC
V
ref
MPXO
TMUTE
V
AFR
V
AFL
16
15
14
13
12
11
10 BUSENABLE
BUSMODE
SWPORT1
SWPORT2
XTAL1
XTAL2
PHASEFIL
PILFIL
9
SDS
33 nF
1 nF
22 nF
22 nF
C
comp
(1)
C
pull
(1)
32.768 kHz
or
13 MHz
33 k
Ω
10 k
Ω
10 k
Ω
47 nF
VCO
39 nF
10 nF
R1
4.7
Ω
100 k
Ω
10 k
Ω
47
Ω
V
CC(VCO)
12
Ω
22 nF
D1
L3
D2
L2
22 nF
LEVEL
ADC
IF
COUNTER
LIMITER
DEMODULATOR
I
ref
RESONANCE
AMPLIFIER
SOFTWARE
PROGRAMMABLE
PORT
MUX
I
2
C-BUS
V
CCD
GAIN
STABILIZATION
POWER
SUPPLY
SOFT
MUTE
MPX
DECODER
CRYSTAL
OSCILLATOR
TEA5768HL
V
CCA
÷2
N1
pilot
mono
Fig.1 Block diagram.
The component list is given Chapter 14.
(1) C
comp
and C
pull
data depends on crystal specification.