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參數(shù)資料
| 型號： | TDA9897HL/V3 |
| 廠商： | NXP SEMICONDUCTORS |
| 元件分類： | 消費家電 |
| 英文描述： | SPECIALTY CONSUMER CIRCUIT, PQFP48 |
| 封裝： | 7 X 7 MM, 1.40 MM HEIGHT, PLASTIC, MS-026, SOT313-2, LQFP-48 |
| 文件頁數(shù)： | 46/103頁 |
| 文件大小： | 529K |
| 代理商： | TDA9897HL/V3 |
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TDA9897_TDA9898_4
NXP B.V. 2009. All rights reserved.
Product data sheet
Rev. 04 — 25 May 2009
47 of 103
NXP Semiconductors
TDA9897; TDA9898
Multistandard hybrid IF processing
Tuner AGC; pin TAGC
TAGC integral loop mode (W6[7:6] = 10); TAGC is current output; applicable for negative modulation only; unmodulated VIF;
Vi(IF)(RMS)
RMS IF input voltage
for TOP1; at starting point
of tuner AGC takeover;
Isink(TAGC) = 100 A
W9[4:0] = 0 0000
-
59.6
-
dB
V
W9[4:0] = 1 0000
-
78.3
-
dB
V
W9[4:0] = 1 1111
-
98.5
-
dB
V
αacc(set)TOP1
TOP1 setting accuracy
2
-
+2
dB
Isource
source current
TAGC charge current
W9[5] = 0
0.20
0.33
0.45
A
W9[5] = 1
1.6
2.5
3.4
A
fast mode activated by
internal level detector;
W9[5] = 0
711
15
A
fast mode activated by
internal level detector;
W9[5] = 1
60
90
120
A
Isink
sink current
TAGC discharge current;
VTAGC =1V
375
500
625
A
αacc(set)TOP1/T TOP1 setting accuracy
variation with temperature
W9[4:0] = 1 0000
-
0.006
0.02
dB/K
RL
load resistance
[3] 50
-
M
Vsat(u)
upper saturation voltage
pin operating as current
output
VP 0.3 -
-
V
Vsat(l)
lower saturation voltage
pin operating as current
output
-
0.3
V
αth(fast)AGC
AGC fast mode threshold
activated by internal fast
AGC detector; I2C-bus
setting corresponds to
W9[4:0] = 1 0000
[3] 6
8
10
dB
td
delay time
before activating; Vi(IF)
below
αth(fast)AGC
40
60
80
ms
Table 53.
Characteristics …continued
VP =5V; Tamb =25 °C; see Table 24 for input frequencies; B/G standard is used for the specication (fPC = 38.375 MHz;
fSC = 32.875 MHz; PC / SC = 13 dB; fAF = 400 Hz); input level Vi(IF) = 10 mV (RMS) (sync level for B/G; peak white level
for L); IF input from 50
via broadband transformer 1 : 1; video modulation: Vestigial SideBand (VSB); residual carrier for
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); measurements taken in test circuit of Figure 51; unless otherwise specied.
Symbol
Parameter
Conditions
Min
Typ
Max
Unit
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| TDA9897V2 | 制造商:PHILIPS 制造商全稱:NXP Semiconductors 功能描述:Multistandard hybrid IF processing |
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