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參數資料
| 型號： | U4476B-MFLG3 |
| 英文描述： | TV Video Receiver Circuit |
| 中文描述： | 電視視頻接收電路 |
| 文件頁數： | 1/7頁 |
| 文件大?。?/td> | 81K |
| 代理商： | U4476B-MFLG3 |
U4476B
Preliminary Information
Rev. A3, 08-Mar-01
1 (7)
IF Amplifier / Converter for DVB (Cable)
Description
The U4476B is a bipolar circuit for the processing of
DVB-Cable IF signals (
D
igital
V
ideo
B
roadcasting). The
amplifier/ converter is suitable for QAM modulated IF
signals (1st IF) and provides the gain controlled 2nd IF.
With 5 V supply voltage the IC allows application in
RF/IF front ends for DVB-Cable receivers (set top boxes).
Features
Gain controlled amplifier for the 1st IF (36 MHz)
IF converter for the 2nd IF (7 MHz);
VCO circuit is controlled by external PLL
Bandwidth of the output signal: 10 MHz (–1 dB)
Internal AGC with average detection for the QAM
modulated DVB signal, reference level is adjustable
5 V supply voltage; low-power consumption
Package:
28-pin small outline plastic package (SO28)
Block Diagram
Tuner
AGC
Band
Gap
Control
AGC:
QAM
VCO
PLL
I
2
C
IF 2
Tuner
V
S
2nd IF
Input
select
12703
5
6
9
10
Ref
(DVB)
7
12
11
24
3
8
21
23
22
20
18
13
15
28
IF 1
Figure 1. Block diagram
相關PDF資料 |
PDF描述 |
|---|---|
| U4476B | IF Amplifier / Converter for DVB (Cable) |
| U454B | Low cost triple video buffer/filter for standard video |
| U4790B | Wide band low noise operational amplifiers |
| U4791B | Automotive Lamp Outage Monitor, VT = 53 mV |
| U482(BAGGEDIN10S) | 320MHz single supply video buffer with low in/out rail |
相關代理商/技術參數 |
參數描述 |
|---|---|
| U4477B | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:TELEFUNK ELECTRONIC CREATIVE TECHNOLOGIEN U2200B-FP |
| U4479B | 制造商:TEMIC 制造商全稱:TEMIC Semiconductors 功能描述:DVB-Cable IF Converter and Full Multi-Standard Video-/Sound IF Processing |
| U4479B-MFLG3 | 制造商:TEMIC 制造商全稱:TEMIC Semiconductors 功能描述:DVB-Cable IF Converter and Full Multi-Standard Video-/Sound IF Processing |
| U4488B | 制造商:TEMIC 制造商全稱:TEMIC Semiconductors 功能描述:Quasi-Split Sound Circuit and AM Demodulator |
| U448B | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:Telecommunication IC |
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