概述

　　机顶盒，是一个连接电视机与外部信号源的设备。它可以将压缩的数字信号转成电视内容，并在电视机上显示出来。信号可以来自有线电缆、卫星天线、宽带网络以及地面广播。机顶盒一般由主芯片、内存、调谐解调器、回传通道、CA接口、外部存储控制器以及视音频输出等几大部分构成。

　　优势

　　• 3x3mm封装小体积调谐器(Si2144)，能够有效减少电路板面积和BOM成本，为全球有线、地面和混合型地面机顶盒市场提供了优秀的数字调谐器解决方案还支持被动环路输出功能，为新的机顶盒设计提供被动环输解决;

【Si2144】

Description

The Si2144 is the industry's most advanced digital Set-TopBox (STB) tuner supporting all worldwide cable andterrestrial TV standards for digital TV reception. Like theprevious generations of Silicon Labs' digital TV tuners, theSi2144 maintains very high linearity and low phase noise todeliver superior picture quality compared to competingsilicon tuners.

Available in an industry-leading 3x3 mm QFN package, theSi2144 delivers the lowest-cost, most design-friendly andarea-efficient digital STB solution available today.Afullyintegrated RF front-end eliminates the need for anexternal balun, LNAs, SAW filters, and inductive powersupply filtering. Also included is a fully-integratedloop-through function with a zero-power mode switch(ZPS) for additional board area and BOM savings. Anon-chip 1.8 V LDO enables single-supply operation, whilea dual-supply option offers additional system flexibility. TheSi2144’s excellent immunity to LTE interference andharmonic rejection mixer with outstanding immunity toWi-Fi interference eliminate the need for external filtering.For advanced digital broadcast standards with high-orderconstellations, such as DVB-T2 and DVB-C2, the Si2144'ssuperior integrated phase noise delivers industry-leadingreception performance.

The Si2144 delivers a higher number of received stationscompared to other silicon tuners. Incorporating worldwidefield experience from prior generations of digital tuners inmass production, the Si2144 delivers the highest toleranceto real-world reception conditions.

Features

- Worldwide digital STB tuner

- ATSC/QAM, DVB-T2/T/C2/C, ISDB-T/C, DTMB

- 1.7 MHz, 6 MHz, 7 MHz, 8 MHz, and 10 MHz channel

bandwidths

- Conforms to NorDig, DTG, and ARIB

- Lowest BOM for a silicon digital Set Top Box tuner

- No balun, SAW filters, or wire-wound inductors

- Integrated loop-through with zero-power mode

- Integrated LNAs and complete tracking filters

- Best-in-class real-world reception

- Industry-leading phase noise performance

- High immunity to Wi-Fi and LTE interference

- Low power consumption

- 3.3 V and 1.8 V power supplies

- Integrated 1.8 V LDO for 3.3 V single-supply

operation

- Single Low-IF (LIF) output to SoC and/or demodulator

- Standard CMOS process technology

- Smallest footprint for a silicon digital TV tuner

- 3x3 mm, RoHS-compliant 24-pin QFN

Applications

- Digital tuner modules

- Digital cable and terrestrial STB

- Digital PVR, DVD and Blu-Ray disc recorder

　　• Demod Si216x、Si218x业内占有率第一，QFN48小封装，电路结构简单，性能优越;

【Si216x】

Si2164/62/60-C Digital DVB-C2 TV Demodulators

The Si2164/62/60-C integrates digital demodulators for all of the first and second generation DVB video broadcasting standards, DVB-T2/C2/S2X/S2/T/C/S, DVB-T2/C2/T/C and DVB-C2/S2X/S2/T/C/S respectively, in a single advanced CMOS die. Leveraging Silicon Labs' proven digital demodulation architecture, the Si2164/62/60-C achieves excellent reception performance for each media while significantly minimizing front-end design complexity, cost and power dissipation.

Connecting the Si2164/62/60-C to a terrestrial and cable hybrid TV tuner or digital only tuner, such as Silicon Labs' Si2177 and Si2151/41 devices, results in a high-performance and cost optimized TV front-end solution.

Silicon Labs' internally developed DVB-C2 demodulators can accept a standard IF (36 MHz) or low-IF input (differential) and support all modes specified by the DVB-C2 standard. The main features of the DVB-C2 mode are 4096-QAM, 6 or 8 MHz bandwidth, management of notch insertion (broadband and narrowband), and support of multiple data slices and PLPs. The DVB-T2/T, DVB-S2X/S2 and DVB-C demodulator IP blocks are enhanced versions of the proven and broadly-used Silicon Labs Si2169/68/67/66 devices. DVB-T2-Lite (ETSI EN 302 755-V1.3.1) compatibility is also supported.

The satellite demodulation functionality allows demodulating widely deployed DVB-S, DVB-S2 (AMC compliant), DIRECTVTM (DSS) legacy standards, and new generation DVB-S2X (DVB-S2 Extensions) satellite broadcasts. A zero-IF interface (differential) allows for a seamless connection to market proven satellite silicon tuners. Si216x embeds DiSEqCTM 2.0 LNB interface for satellite dish control and an equalizer to compensate for echoes in long cable feeds from antenna to the satellite tuner input. The cable demodulation functionality allows demodulating widely deployed DVB-C legacy standard (ITU J.83 Annex A/C) and Americas' cable standard (ITU-T J.83 Annex B).

The Si216x offers an on-chip blind scan algorithm for DVB-S2/S2X and DVB-C/C2 standards, as well as a blind lock function. The Si216x programmable transport stream output interface provides a flexible range of output modes and is fully compatible with all MPEG decoders or conditional access modules to support any customer application.

Features

DVB-C2 (ETSI EN 302 769)

16-QAM to 4096-QAM OFDM demodulation

6 MHz and 8 MHz bandwidth

Notch management

DVB-T2 (ETSI EN 302 755-V1.3.1) with T2-Lite (Annex I)

Bandwidth: 1.7, 5, 6, 7, or 8 MHz and extended BW

Supports up to 255 PLPs

FEF management

NorDig Unified 2.4 and D-Book 7 V3 compliant

DVB-S2 (ETSI EN 302 307-1)

QPSK/8PSK demodulator

DVB-S2X (ETSI EN 302 307-2)

QPSK/8PSK, 8/16/32APSK demodulator

Roll-off factors from 0.05 to 0.35

DVB-C (ETSI EN 300 429) and ITU J.83 Annex A/B/C

QAM demodulator and FEC decoder

1 to 7.2 MSymbol/s

DVB-T (ETSI EN 300 744)

OFDM demodulator and enhanced FEC decoder

NorDig Unified 2.4 and D-Book 7 V3 compliant

DVB-S (ETSI EN 300 421) and DSS

QPSK demodulator and enhanced FEC decoder

1 to 45 MSymbol/s for all satellite standards (<40 MSps in 32APSK)

LDPC and BCH FEC decoding for T2/C2 and S2X/S2 standards

I2C serial bus interfaces (master and host)

Firmware control for upgradeability

Flexible TS output interface (serial, parallel, and slave)

DiSEqC™ 2.0 interface and Unicable support for satellite

Fast lock times for all media

Low power consumption

Two power supplies: 1.2 and 3.3 V

7 mm x 7 mm, QFN-48 pin package, Pb-free/RoHS compliant

Pin-to-pin compatible with all Si216x/8x single demods family

API compatible with all single and dual demods families

【Si2168-D60】

说明

Si2168D 将符合第一代和第二代 DVB 标准 (DVB-T2/T/C) 的数字解调器集成于一个高级的 CMOS 芯 片 中。Si2168D 利用成熟的Silicon Labs 数字解调体系结构，为各种媒体提供了卓越的接收性能，同时最大限度地降低了前端设计的复杂性、成本和功耗。将Si2168D 连接到混合电视调谐器或仅连接到数字调谐器(例如Silicon Labs 的 Si217x/5x/4x 设备)即可获得成本优化的高性能电视或 STB 接收前端。

Silicon Labs 内部研发的 DVB-T2(包括 T2-Lite)解调器可接受标准 IF (36MHz) 或低 IF 输入，并支持由 DVB-T2 标准指定的所有模式。DVB-T2 模式的主要特点是具有旋转集群的 256 QAM、SISO和 MISO 支持、FEF 管理、完全自主的信号采集(包括自动 L1 信号解析)、600kHz 采集范围、所有导频模式支持，以及 DVB-T2/T自动检测。

DVB-T 和 DVB-C 解调器是成熟且使用广泛的 Silicon Labs 设备Si2169/68/67/64/62/60 的新一代增强版本。有线接收功能可以解调广泛部署的 DVB-C 旧标准 (ITU-T J.83Annex A/C) 和美国有线标准 (ITU-T J.83 Annex B)。Si2168D 提供了适用于 DVB-C 标准的片上盲扫算法以及盲锁功能。Si2168D 可编程传输流输出接口提供灵活多样的输出模式，且完全兼容所有 MPEG 解码器或条件接收模块，能够支持所有客户应用。

功能

- 引脚对引脚兼容所有 Si216x/8x 单解调器产品系列

- API 兼容所有单解调器和所有双解调器系列产品

- DVB-T2 (ETSI EN 302 755-V1.4.1) 搭载 T2-Lite (Annex I)

- 带宽：1.7、5、6、7 和 8 MHz(以及扩展带宽)

- 符合 NorDig Unified 2.5 和 D-Book 8

- DVB-T (ETSI EN 300 744)

- OFDM 解调器和增强型 FEC 解码器

- 符合 NorDig Unified 2.5 和 D-Book 8

- DVB-C (ETSI EN 300 429) 和 ITU-T J.83 Annex A/B/C

- QAM 解调器和 FEC 解码器

- 1 至 7.2 MSymbol/s

- I

2C 串行总线接口(主模块和主机)

- 固件控制(嵌入式 ROM/NVM)

- 可通过 I2C 或快速 SPI 来下载补丁进行升级

- 灵活的 TS 输出接口(串行、并行和从属)

- 适用于所有媒体的快速锁定时间

- 低功耗

- 两个电源：1.2 和 3.3 V

- 7x7 mm，QFN-48 引脚封装，符合无铅/RoHS 要求

应用

- iDTV：板载设计或 NIM 内嵌

- 高级多媒体 STB、PVR 和蓝光光盘刻录机

- PC-TV 配件

【Si218x】

Si2183/82/81/80 Digital ISDB-T TV Demodulators

The Si2183/82/81/80 integrates digital demodulators for ISDB-T and all of the first, second and third generation DVB video broadcasting standards, ISDB-T/DVB-T2/C2/S2X/S2/T/C/S, ISDB-T/DVB-T2/S2X/S2/T/C/S, ISDB-T/DVB-S2X/S2/T/C/S, and ISDB-T/DVB-T/C respectively, in a single advanced CMOS die. Leveraging Silicon Labs' proven digital demodulation architecture, the Si2183/82/81/80 achieves excellent reception performance for each media, while significantly minimizing front-end design complexity, cost and power dissipation.

Connecting the Si2183/82/81/80 to a terrestrial and cable hybrid TV tuner or digital only tuner, such as Silicon Labs' Si2177, Si2151, and Si2141 results in a high-performance and cost optimized TV front-end solution.

Silicon Labs’ multi-standard demodulator can accept a standard IF (36 MHz) or low-IF input for terrestrial and cable standards. The ISDB-T demodulator supports all modes specified by current ABNT NBR 16.601 and ABNT NBR 15.604 specifications. The main features of the ISDB-T mode are three layers decoding, TMCC decoding, support for differential demodulation, partial reception decoding, and AC1, AC2 decoding. The DVB-T2 demodulator supports all modes specified by current DVB-T2-V1.3.1 standard. The main features of the DVB-T2 and T2-Lite modes are 256 QAM with rotated constellations, SISO and MISO support, FEF management, fully autonomous signal acquisition including automatic L1 signaling parsing, scrambling of L1 post-signaling, 600 kHz acquisition range, support for all pilot patterns, and DVB-T2/T auto-detection.

The satellite demodulation functionality allows demodulating widespread DVB-S, DIRECTV™ (DSS), DVB-S2, and DIRECTV™ (AMC) legacy standards, as well as new Part II of DVB-S2 (S2X) satellite broadcast standard. Broadcast services, variable coding and modulation (VCM), 8, 16, 32 APSK modulations and code rates, new shorten roll-off factors, are the main specifications of the new DVB-S2 demodulator. A zero-IF interface allows for a seamless connection to market proven satellite silicon tuners. It also integrates DiSEqC™ 2.0 LNB interface for satellite dish control and an equalizer to compensate for echoes in long cable feeds from the LNB to the satellite tuner RF input.

The Si218x offers an on-chip blind scan algorithm for DVB-S2X/S2/S and DVB-C2/C standards, as well as a blind lock function. The Si218x programmable transport stream output interface provides a flexible range of output modes and is fully compatible with all MPEG decoders or conditional access modules to support any customer application.

Features

DVB-C2 (ETSI EN 302 769)

16-QAM to 4096-QAM OFDM demodulation

6 MHz and 8 MHz bandwidth

Notch management

DVB-T2 (ETSI EN 302 755-V1.3.1) with T2-Lite (Annex I)

Bandwidth: 1.7, 5, 6, 7, or 8 MHz and extended BW

Supports up to 255 PLPs

FEF management

NorDig Unified 2.4 and D-Book 7 V3 compliant

DVB-S2 (ETSI EN 302 307-1)

QPSK/8PSK demodulator

DVB-S2X (ETSI EN 302 307-2)

QPSK/8PSK, 8/16/32APSK demodulator

Roll-off factors from 0.05 to 0.35

DVB-C (ETSI EN 300 429) and ITU J.83 Annex A/B/C

QAM demodulator and FEC decoder

1 to 7.2 MSymbol/s

ISDB-T (ABNT NBR 16.601 and 15.604)

6, 7, and 8 MHz bandwidth

Partial reception supported

AC1 and AC2 decoding

DVB-T (ETSI EN 300 744)

OFDM demodulator and enhanced FEC decoder

NorDig Unified 2.4 and D-Book 7 V3 compliant

DVB-S (ETSI EN 300 421) and DSS

QPSK demodulator and enhanced FEC decoder

1 to 45 MSymbol/s for all satellite standards (<40 MSps in 32APSK)

LDPC and BCH FEC decoding for T2/C2 and S2X/S2 standards

I2C serial bus interfaces (master and host)

Firmware control for upgradeability

Flexible TS output interface (serial, parallel, and slave)

DiSEqC™ 2.0 interface and Unicable support for satellite

Fast lock times for all media

Low power consumption

Two power supplies: 1.2 and 3.3 V

7 mm x 7 mm, QFN-48 pin package, Pb-free/RoHS compliant

Pin-to-pin compatible with all Si216x/8x single demods family

API compatible with all single and dual demods families

　　• CMPT3904 NPN晶体管，VCE压差<0.3V，CMUDM7005支持低导通电阻RDS(ON)0.14欧姆和低阈值电压500Mv，放大管具有更好的增益特性，信号放大效果佳，提升音视频信号的质量。

【CMPT3904】

DESCRIPTION:

The CENTRAL SEMICONDUCTOR CMPT3904,CMPT3906 types are complementary silicontransistors manufactured by the epitaxial planarprocess, epoxy molded in a surface mountpackage, designed for small signal generalpurpose amplifier and switching applications.

MARKING CODES:

CMPT3904: C1A

CMPT3906: C2A

【CMUDM7005】

DESCRIPTION:

The CENTRAL SEMICONDUCTOR CMUDM7005 is an Enhancement-mode N-Channel MOSFET,manufactured by the N-Channel DMOS Process,designed for high speed pulsed amplifier and driver applications. This MOSFET offers Low rDS(ON) and Low Theshold Voltage.

MARKING CODE: 5C7

FEATURES:

• ESD Protection up to 2kV

• 300mW Power Dissipation

• Very Low rDS(ON)

• Low Threshold Voltage

• Logic Level Compatible

• Small, SOT-523 Surface Mount Package

APPLICATIONS:

• Load/Power Switches

• Power Supply Converter Circuits

• Battery Powered Portable Equipment

　　【数字视频变换盒】

　　数字视频变换盒，通常称作机顶盒或机上盒，是一个连接电视机与外部信号源的设备。它可以将压缩的数字信号转成电视内容，并在电视机上显示出来。信号可以来自有线电缆、卫星天线、宽带网络以及地面广播。机顶盒接收的内容除了模拟电视可以提供的图像、声音之外，更在于能够接收数字内容，包括电子节目指南、因特网网页、字幕等等。使用户能在现有电视机上观看数字电视节目，并可通过网络进行交互式数字化娱乐、教育和商业化活动。