TDA9897; TDA9898
NXP Semiconductors
Multistandard hybrid IF processing
Table 1.
Quick reference data …continued
VP = 5 V; Tamb = 25 °C.
Symbol
Parameter
Conditions
Min
Typ
Max
Unit
[4]
[4]
Bvideo(−3dB) −3 dB video bandwidth
trap bypass mode and
sound carrier off; AC load:
CL < 20 pF, RL > 1 kΩ
6
8
-
MHz
αSC1
first sound carrier attenuation
weighted signal-to-noise ratio
M/N standard;
f = fSC1 = 4.5 MHz;
see Figure 21
38
35
53
-
-
-
-
dB
dB
dB
[4]
B/G standard;
f = fSC1 = 5.5 MHz;
see Figure 23
-
[2][5]
(S/N)w
normal mode and sound
carrier on; B/G standard;
50 % grey video signal;
unified weighting filter
(“ITU-T J.61”);
57
see Figure 20
[2]
[6]
PSRRCVBS power supply ripple rejection on
pin CVBS
normal mode and sound
carrier on; fripple = 70 Hz;
video signal; grey level;
positive and negative
14
20
-
dB
modulation; see Figure 11
∆IAFC/∆fVIF change of AFC current with VIF
AFC TV mode
0.85
430
1.05
540
1.25
650
µA/kHz
frequency
Audio part
Vo(AF)(RMS) RMS AF output voltage
FM: QSS mode;
mV
27 kHz FM deviation;
50 µs de-emphasis
AM: 54 % modulation
400
-
500
600
mV
%
THD
total harmonic distortion
FM: 50 µs de-emphasis;
FM deviation: for TV mode
27 kHz and for radio mode
22.5 kHz
0.15
0.50
AM: 54 % modulation;
BP on; see Figure 33
-
0.5
1.0
-
%
f−3dB(AF)
AF cut-off frequency
W3[2] = 0; W3[4] = 0;
without de-emphasis;
FM window
80
100
kHz
width = 237.5 kHz
(S/N)w(AF)
AF weighted signal-to-noise ratio
“ITU-R BS.468-4”
FM: 27 kHz FM deviation;
50 µs de-emphasis; vision
carrier unmodulated;
FM PLL only
48
56
-
dB
AM: BP off
44
14
50
20
-
-
dB
dB
PSRR
power supply ripple rejection
fripple = 70 Hz; see Figure 11
TDA9897_TDA9898_4
© NXP B.V. 2009. All rights reserved.
Product data sheet
Rev. 04 — 25 May 2009
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