參數(shù)資料
型號： TDA9897HN/V3
廠商： NXP SEMICONDUCTORS
元件分類： 消費家電
英文描述： SPECIALTY CONSUMER CIRCUIT, PQCC48
封裝： 7 X 7 MM, 0.85 MM HEIGHT, PLASTIC, MS-026, SOT619-1, HVQFN-48
文件頁數(shù)： 35/103頁
文件大?。?/td> 529K
代理商： TDA9897HN/V3
TDA9897_TDA9898_4
NXP B.V. 2009. All rights reserved.
Product data sheet
Rev. 04 — 25 May 2009
37 of 103
NXP Semiconductors
TDA9897; TDA9898
Multistandard hybrid IF processing
[1]
Average step size is 1.255 dB typical.
[2]
See Table 53 for parameter tuner takeover point accuracy (
α
acc(set)TOP).
Table 43.
W9 - data write register bit allocation
7
6
5
4
3
2
1
0
DAGCSLOPE
TAGCIS
TAGCTC
TOPNEG4
TOPNEG3
TOPNEG2
TOPNEG1
TOPNEG0
Table 44.
W9 - data write register bit description
Bit
Symbol
Description
7
DAGCSLOPE
AGCDIN input characteristic; see Figure 44
1 = high voltage for high gain
0 = low voltage for high gain
6
TAGCIS
tuner AGC IF input (TOP1)
1 = inverse to VIF input
0 = aligned to VIF input
5
TAGCTC
tuner AGC charge current (TOP1)
1 = high
0 = normal
4 to 0
TOPNEG[4:0]
TOP adjustment for integral loop mode (TOP1); recommended for negative modulation;
Table 45.
Tuner takeover point adjustment bits W9[4:0]
Bit
TOP adjustment
(dB
V)[1]
TOPNEG4
TOPNEG3
TOPNEG2
TOPNEG1
TOPNEG0
W9[4]
W9[3]
W9[2]
W9[1]
W9[0]
11111
98.5 typical
:::::see Figure 13
10000
:::::see Figure 13
00000
59.6 typical
Table 46.
W10 - data write register bit allocation
7
6
5
4
3
2
1
0
0
READTAGC
XPOTPOS
TOPPOS4
TOPPOS3
TOPPOS2
TOPPOS1
TOPPOS0
Table 47.
W10 - data write register bit description
Bit
Symbol
Description
7
-
0 = xed value
6
READTAGC
signal source for TAGC read-out on R2[6]
1 = inverse to used TAGC detector (integral or IF based)
0 = aligned to used TAGC detector (integral or IF based)
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相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
TDA9897S1 制造商:PHILIPS 制造商全稱:NXP Semiconductors 功能描述:Multistandard hybrid IF processing
TDA9897V2 制造商:PHILIPS 制造商全稱:NXP Semiconductors 功能描述:Multistandard hybrid IF processing
TDA9898 制造商:PHILIPS 制造商全稱:NXP Semiconductors 功能描述:Multistandard hybrid IF processing
TDA9898HL 制造商:PHILIPS 制造商全稱:NXP Semiconductors 功能描述:Multistandard hybrid IF processing
TDA9898HL/V2/S1,11 功能描述:上下轉(zhuǎn)換器 MULTI APPL SYS RoHS:否 制造商:Texas Instruments 產(chǎn)品:Down Converters 射頻:52 MHz to 78 MHz 中頻:300 MHz LO頻率: 功率增益: P1dB: 工作電源電壓:1.8 V, 3.3 V 工作電源電流:120 mA 最大功率耗散:1 W 最大工作溫度:+ 85 C 安裝風格:SMD/SMT 封裝 / 箱體:PQFP-128
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