tda9898 NXP Semiconductors, tda9898 Datasheet - Page 58

• Manufacturer Part Number: tda9898
• Description: Multistandard Hybrid If Processing Semiconductors
• Manufacturer: NXP Semiconductors

NXP Semiconductors
Table 53.
V
f
for L); IF input from 50
B/G is 10 % and for L is 3 %; video signal in accordance with “ITU-T J.63 line 17 and line 330” or “NTC-7 Composite”;
internal Nyquist slope switched on (W7[0] = 0); not dual mode; measurements taken in test circuit of
unless otherwise specified.
TDA9897_TDA9898_3
Product data sheet
Symbol
AM operation
L standard; pin AUD
V
THD
B
(S/N)
Reference frequency
General
f
Reference frequency generation with crystal; pin OPTXTAL
V
R
R
C
R
I
Reference frequency input from external source; pin OPTXTAL
V
R
V
R
C
Reference frequency input from external source; W7[7] = 0; pin FREF
V
R
SC
ref
swoff
P
o(AF)(RMS)
AF( 3dB)
OPTXTAL
OPTXTAL
ref(RMS)
FREF
i
rsn(xtal)
pull
swoff(OPTXTAL)
i
O
dec
i
= 5 V; T
= 32.875 MHz; PC / SC = 13 dB; f
w(AF)
amb
Characteristics
= 25 C; see
Parameter
RMS AF output voltage
total harmonic distortion
AF weighted signal-to-noise
ratio
reference frequency
voltage on pin OPTXTAL
(DC)
input resistance
crystal resonance resistance
pull capacitance
switch-off resistance on pin
OPTXTAL
switch-off current
voltage on pin OPTXTAL
(DC)
input resistance
RMS reference voltage
output resistance
decoupling capacitance
voltage on pin FREF (DC)
input resistance
3 dB AF bandwidth
via broadband transformer 1 : 1; video modulation: Vestigial SideBand (VSB); residual carrier for
Table 25
…continued
for input frequencies; B/G standard is used for the specification (f
AF
= 400 Hz); input level V
Rev. 03 — 11 January 2008
Conditions
54 % modulation
54 % modulation; BP on;
see
“ITU-R BS.468-4”
composite IF; VIF
modulation = color bar;
“ITU-R BS.468-4” ; BP on
pin open-circuit
to switch off crystal input
by external resistor wired
between pin OPTXTAL
and GND
R
R
pin open-circuit
of external reference
signal source
to external reference
signal source
pin open-circuit
swoff(OPTXTAL)
swoff(OPTXTAL)
BP on
BP off
Figure 33
i(IF)
= 0.22 k
= 3.3 k
= 10 mV (RMS) (sync level for B/G; peak white level
TDA9897; TDA9898
[25]
[26]
[3]
[3]
[3]
[3]
[3]
[3]
Multistandard hybrid IF processing
Min
400
-
12
38
44
-
-
2.3
-
-
-
0.22
-
-
2.3
-
80
-
22
2.2
50
Typ
500
0.5
18
42
50
40
4
2.6
2
-
-
-
-
500
2.6
2
-
2
100
2.5
-
Figure 50
PC
© NXP B.V. 2008. All rights reserved.
= 38.375 MHz;
Max
600
1.0
-
-
-
-
-
2.9
-
200
-
4.7
1600
-
2.9
-
400
4.7
-
2.8
-
and
Figure
Unit
mV
%
kHz
dB
dB
dB
MHz
V
k
pF
k
V
k
mV
k
pF
V
k
58 of 103
A
A
51;