tda9898 NXP Semiconductors, tda9898 Datasheet - Page 53

• 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
K
K
I
FM intercarrier input; pins EXTFMI and EXTFILI; see
V
V
V
FM demodulator part; audio output; pin AUD
V
SC
Z
offset(FM)
P
D(FM)
O(FM)
i(FM)(RMS)
lock(min)(RMS)
det(FM)min(RMS)
o(AF)(RMS)
i
= 5 V; T
= 32.875 MHz; PC / SC = 13 dB; f
amb
Characteristics
= 25 C; see
Parameter
FM phase detector
steepness
FM VCO steepness
FM offset current
input impedance
RMS FM input voltage
RMS minimum lock-in
voltage
RMS minimum FM carrier
detection voltage
RMS AF output voltage
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
W6[3] = 0; W3[4] = 0
W6[3] = 0; W3[4] = 1
AC-coupled via 4 pF
gain controlled operation;
W1[1:0] = 10 or
W1[1:0] = 11 or
W1[1:0] = 01
W1[1:0] = 10 or
W1[1:0] = 11 or
W1[1:0] = 01
W1[1:0] = 10 or
W1[1:0] = 11 or
W1[1:0] = 01
QSS mode;
25 kHz FM deviation;
75 s de-emphasis
QSS mode;
27 kHz FM deviation;
50 s de-emphasis
QSS mode;
55 kHz FM deviation;
50 s de-emphasis
radio mode;
22.5 kHz FM deviation;
75 s de-emphasis
I
f
FMPLL
FMPLL
W3[4] = 0; W6[3] = 0;
FM window
width = 237.5 kHz
W3[4] = 1; W6[3] = 0;
FM window
width = 475 kHz
W3[4] = 0; W6[3] = 1;
FM window
width = 1 MHz
W3[4] = 1; W6[3] = 1;
FM window
width = 1 MHz
f < 10 MHz
f = 10.7 MHz
Figure 15
/
/ V
VCO(FM)
LFFM
i(IF)
= 10 mV (RMS) (sync level for B/G; peak white level
TDA9897; TDA9898
Multistandard hybrid IF processing
Min
-
-
-
-
-
-
-
2
-
-
400
430
900
360
1.5
2.5
Typ
4
10
4
10
3.3
5.9
0
0
20
-
-
-
500
540
-
450
Figure 50
PC
© NXP B.V. 2008. All rights reserved.
= 38.375 MHz;
Max
-
-
-
-
-
-
+1.5
+2.5
-
300
1.5
1.8
600
650
1300
540
and
Figure
Unit
MHz/V
MHz/V
k
mV
mV
mV
mV
mV
mV
mV
53 of 103
A/rad
A/rad
A/rad
A/rad
A
A
51;