參數(shù)資料
型號: TDA9897HL/V3
廠商: NXP SEMICONDUCTORS
元件分類: 消費(fèi)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): 69/103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
68 of 103
NXP Semiconductors
TDA9897; TDA9898
Multistandard hybrid IF processing
(1) VIF AFC via I2C-bus; accuracy is
±1 digit.
(2) Bit AFCWIN via I2C-bus (VCO is in
±1.6 MHz window) for all standards except M/N standard.
(3) Bit AFCWIN via I2C-bus (VCO is in
±0.8 MHz window) for M/N standard.
(4) VIF AFC average current.
(5) Reading via I2C-bus.
(6) Average; RC network at pin MPP.
Fig 17. Typical analog and digital AFC characteristic for VIF
008aaa035
0
50
150
250
0
50
150
250
IAFC(6)
(
A)
250
fVIF (MHz)
36.375
40.375
39.875
37.875
38.875
37.375
36.875
38.375
39.375
bit AFCWIN (R1[7]) = 1
(1)
(4)
(2)
(3)
fAFC(VIF)(5)
(kHz)
Characteristics of digital and analog radio AFC is mirrored with respect to center frequency when lower sideband is used
(W2[3] = 0).
(1) RIF AFC via I2C-bus.
(2) FM carrier detection via I2C-bus.
(3) RIF AFC average current.
(4) Reading via I2C-bus.
(5) Average; RC network at pin MPP.
Fig 18. Typical analog and digital AFC characteristic for RIF
001aad443
0
50
150
250
IAFC(5)
(
A)
250
fRIF (MHz)
5.0
6.0
5.8
5.4
5.6
5.2
AFC undefined
bit CARRDET (R1[5]) = 1
(1)
(3)
(2)
50
150
250
fAFC(RIF)(4)
(kHz)
250
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