TDA9887 Philips Semiconductors, TDA9887 Datasheet - Page 42

• Manufacturer Part Number: TDA9887
• Description: I2C-bus controlled multistandard alignment-free IF-PLL demodulator with FM radio
• Manufacturer: Philips Semiconductors

Philips Semiconductors
2004 Aug 25
I
IF-PLL demodulator with FM radio
Pin number for TDA9887HN in parenthesis.
Fig.13 Typical signal-to-noise ratio as a function of
2
(dB)
S/N
C-bus controlled multistandard alignment-free
80
60
40
20
0
30
VIF input voltage.
TDA9887
V
50
P
(23)
21
70
I
AFC
Fig.12 Typical analog AFC characteristic for RIF.
V
R1
22 k
R2
22 k
AFC
90
V
i(VIF)
V AFC
(V)
mhc112
(dB V)
5
4
3
2
1
0
110
8
not defined
42
9
SC is sound carrier, with respect to sync level.
CC is chrominance carrier, with respect to sync level.
PC is picture carrier, with respect to sync level.
The sound carrier levels are taking into account a sound shelf
attenuation of 14 dB (SAW filter G1984M).
21 dB
SC CC
10
13.2 dB
10.5125
Fig.14 Input signal conditions.
BLUE
10.7
10.9125
3.2 dB
11
PC
not defined
12
21 dB
SC CC
f (MHz)
13.2 dB
Product specification
YELLOW
TDA9887
13
mhc147
0
I
( A)
AFC
100
100
200
200
10 dB
mha739
PC