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| 型号： | TDA9897HN/V2 |
| 厂商： | NXP SEMICONDUCTORS |
| 元件分类： | 消费家电 |
| 英文描述： | SPECIALTY CONSUMER CIRCUIT, PQCC48 |
| 封装： | 7 X 7 MM, 0.85 MM HEIGHT, PLASTIC, SOT619-1, MO-220, HVQFN-48 |
| 文件页数： | 13/103页 |
| 文件大小： | 511K |
| 代理商： | TDA9897HN/V2 |
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TDA9897_TDA9898_3
NXP B.V. 2008. All rights reserved.
Product data sheet
Rev. 03 — 11 January 2008
17 of 103
NXP Semiconductors
TDA9897; TDA9898
Multistandard hybrid IF processing
External BP lter (e.g. for 4.5 MHz) for additional ltering, optional.
Bypass mode selection for use of external lter.
Integrated SIF BP tracking lter for chroma suppression.
Integrated tracking lters for LIF and ZIF.
Symmetrical output stages for DIF, ZIF and 2nd SIF.
Second narrow-band gain control loop for 2nd SIF via FM PLL.
8.7 Mono sound demodulator
8.7.1 Narrow-band FM PLL demodulation
Additional external input for either TV or radio intercarrier signal.
FM carrier selection independent from VIF trap, because VIF trap uses reference via
synthesizer.
FM wide and ultra wide mode with adapted loop bandwidth and different selectable
FM acquisition window widths to cope with FM overmodulation conditions.
8.7.2 AM sound demodulation
Passive AM sound detector.
L and L-accent standard without SAW switching (done by sideband selection of SIF
converter).
8.8 Audio amplier
Different gain settings for FM sound to adapt to different FM deviation.
Switchable de-emphasis for FM sound.
Automatic mute function when FM PLL is unlocked.
Forced mute function.
Output amplier for AM sound.
8.9 Synthesizer
In DIF mode, the synthesizer supports low and zero IF input frequencies for 34.5 MHz,
36 MHz, 44 MHz and 57 MHz center frequencies.
In radio mode, the synthesizer supports 2nd sound intercarrier conversion. A large set of
synthesizer frequencies in steps of 0.5 MHz enables exible combination of lter and 2nd
IF frequencies.
Synthesizer loop internally adapted to divider ratio range for optimum phase noise
requirement (loop bandwidth).
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相关代理商/技术参数 |
参数描述 |
|---|---|
| TDA9897S1 | 制造商:PHILIPS 制造商全称:NXP Semiconductors 功能描述:Multistandard hybrid IF processing |
| TDA9897V2 | 制造商:PHILIPS 制造商全称:NXP Semiconductors 功能描述:Multistandard hybrid IF processing |
| TDA9898 | 制造商:PHILIPS 制造商全称:NXP Semiconductors 功能描述:Multistandard hybrid IF processing |
| TDA9898HL | 制造商:PHILIPS 制造商全称:NXP Semiconductors 功能描述:Multistandard hybrid IF processing |
| TDA9898HL/V2/S1,11 | 功能描述:上下转换器 MULTI APPL SYS RoHS:否 制造商:Texas Instruments 产品:Down Converters 射频:52 MHz to 78 MHz 中频:300 MHz LO频率: 功率增益: P1dB: 工作电源电压:1.8 V, 3.3 V 工作电源电流:120 mA 最大功率耗散:1 W 最大工作温度:+ 85 C 安装风格:SMD/SMT 封装 / 箱体:PQFP-128 |
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