首页>MC44BC374CDTB>规格书详情

MC44BC374CDTB中文资料飞思卡尔数据手册PDF规格书

MC44BC374CDTB
厂商型号

MC44BC374CDTB

功能描述

PLL Tuned UHF and VHF Audio/Video High Integration Modulator

文件大小

1.78434 Mbytes

页面数量

30

生产厂商 Freescale Semiconductor, Inc
企业简称

FREESCALE飞思卡尔

中文名称

飞思卡尔半导体官网

原厂标识
数据手册

下载地址一下载地址二到原厂下载

更新时间

2025-6-23 13:36:00

人工找货

MC44BC374CDTB价格和库存,欢迎联系客服免费人工找货

MC44BC374CDTB规格书详情

Device Overview

Figure 2 shows a simplified block diagram of the MC44BC373C/4C device. The MC44BC373C/4C device has three main sections:

1. A high speed I2C-compatible bus section

2. A PLL section to synthesize the UHF/VHF output channel frequency (from an integrated UHF oscillator, divided for VHF output)

3. A modulator section, which accepts audio and video inputs, then uses them to modulate the UHF/VHF carrier

An on-chip video test pattern generator with an audio test signal is included.

Features

MC44BC373C: Multi-Standard PAL/SECAM/NTSC Modulator

MC44BC374C: PAL/NTSC only Modulator

The channel is set by an on-chip high-speed I2C compatible bus receiver. A Phase-Locked Loop (PLL) tunes the modulator over the full UHF range.

The modulator incorporates a sound subcarrier oscillator and uses a second PLL to derive 4.5, 5.5, 6.0, and 6.5MHz subcarrier frequencies. These frequencies are selectable using the bus.

The modulation standard can be chosen using a control bit that selects between System L or System B/G (MC44BC373C only).

The picture-to-sound ratio may be adjusted using the bus. In addition, an on-chip video test pattern generator can be switched ON with a 1KHz audio test signal.

The MC44BC373C/4C also has the following features:

• No external varicaps diodes/inductor or tuned components

• Channel 21-69 UHF operation

• VHF range possible by internal dividers (30MHz–450MHz)

• Integrated on-chip programmable UHF oscillator

• Extremely low external components count

• High speed read and write I2C-bus compatible (800kHz)

• Fixed video modulation depth (80 in PAL and 90 in SECAM)

• Peak White Clip disabled via the bus

• Programmable picture/sound carrier ratio (12dB and 16dB)

• Integrated on-chip programmable sound subcarrier oscillator (4.5MHz to 6.5MHz)—No external varicaps

• On-chip video test pattern generator with sound test signal (1kHz)

• Low-power programmable modulator standby mode

• Transient output inhibit during PLL Lock-up at power-ON

• Logical Output Port controlled by bus

• Custom masked versions with unique start-up settings possible (no I2C bus programming required)

• Extremely robust ESD protection, minimum 4kV, typical 6kV

产品属性

  • 型号:

    MC44BC374CDTB

  • 制造商:

    Rochester Electronics LLC

  • 功能描述:

    - Bulk

供应商 型号 品牌 批号 封装 库存 备注 价格
MOT
2016+
TSSOP-16
6528
只做原厂原装现货!终端客户个别型号可以免费送样品!
询价
MOT
24+
TSSOP16
12000
询价
MOTOROLA/摩托罗拉
24+
TSSOP-16
9600
原装现货,优势供应,支持实单!
询价
MOTOROLA
23+
MSOP-16
2500
全新原装正品现货,支持订货
询价
FREESCALE
23+
NA
19960
只做进口原装,终端工厂免费送样
询价
MOTOROL
24+
TSSOP-1
80000
只做自己库存,全新原装进口正品假一赔百,可开13%增
询价
FREESCALE
23+
SOP-16
13000
原厂授权一级代理,专业海外优势订货,价格优势、品种
询价
Motoro
25+
25000
原厂原包 深圳现货 主打品牌 假一赔百 可开票!
询价
MOTOROLA/摩托罗拉
23+
TSSOP-16
50000
全新原装正品现货,支持订货
询价
MOT
25+23+
TSSOP-16
8253
绝对原装正品全新进口深圳现货
询价