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): 79/103頁
文件大小: 529K
代理商: TDA9897HL/V3
TDA9897_TDA9898_4
NXP B.V. 2009. All rights reserved.
Product data sheet
Rev. 04 — 25 May 2009
77 of 103
NXP Semiconductors
TDA9897; TDA9898
Multistandard hybrid IF processing
Video signal related peak-to-peak levels are divided by factor 2
√2 in order to conform with the RMS
value scale of the secondary y-axis, but disregarding the none sine wave signal content.
(1) Signal levels for
1 dB video output level using maximum RF gain and maximum IF gain.
(2) Signal levels for +1 dB video output level using minimum IF gain.
(3) Signal levels for TOP-adjusted tuner output level using maximum RF gain and adjustment-related
minimum IF gain.
(4) Signal levels for TOP-adjusted tuner output level using minimum RF gain and adjustment-related
minimum IF gain.
(5) TOP-adjusted tuner output level.
(6) TOP-adjusted VIF amplier input level.
(7) Minimum antenna input level at
1 dB video level.
Fig 35. Front-end level diagram
001aaf639
120
100
80
60
40
20
0
antenna
input
level
(dB
V)
video
amplifier
demodulator
VIF
amplifier
band-pass
tuner
IF demodulator, TDA989x
X3450L
TD1716
input
output
input
IF signal
RMS
values
(V)
1
101
102
103
104
105
106
(7)
(1)
(3)
(4)
(2)
(5)
(6)
IF gain
control
range
RF
gain
control
range
IF gain
control
range limited
by TOP
adjustment
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TDA9898 制造商:PHILIPS 制造商全稱:NXP Semiconductors 功能描述:Multistandard hybrid IF processing