STV8203

更新时间： 2024-01-29 02:07:13

品牌	Logo	应用领域
意法半导体 - STMICROELECTRONICS		消费电路商用集成电路接收器集成电路电视光电二极管
页数	文件大小	规格书
31页	192K
描述
MULTISTANDARD TV SOUND DEMODULATOR

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技术参数
数据手册

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STV8203 技术参数

是否无铅：	含铅	是否Rohs认证：	不符合
生命周期：	Obsolete	零件包装代码：	QFP
包装说明：	10 X 10 MM, 1.40 MM HEIGHT, PLASTIC, TQFP-44	针数：	44
Reach Compliance Code：	not_compliant	风险等级：	5.92
Is Samacsys：	N	商用集成电路类型：	AUDIO DEMODULATOR
解调类型：	FM	JESD-30 代码：	S-PQFP-G44
JESD-609代码：	e0	长度：	10 mm
功能数量：	1	端子数量：	44
最高工作温度：	70 °C	最低工作温度：
标称输出电压（调频）：	2000 mV	封装主体材料：	PLASTIC/EPOXY
封装代码：	LQFP	封装等效代码：	QFP44,.47SQ,32
封装形状：	SQUARE	封装形式：	FLATPACK, LOW PROFILE
峰值回流温度（摄氏度）：	NOT SPECIFIED	电源：	5,8 V
认证状态：	Not Qualified	座面最大高度：	1.6 mm
子类别：	Other Consumer ICs	最大供电电压 (Vsup)：	5.25 V
最小供电电压 (Vsup)：	4.75 V	表面贴装：	YES
技术：	CMOS	温度等级：	COMMERCIAL
端子面层：	Tin/Lead (Sn/Pb)	端子形式：	GULL WING
端子节距：	0.8 mm	端子位置：	QUAD
处于峰值回流温度下的最长时间：	NOT SPECIFIED	宽度：	10 mm
Base Number Matches：	1

STV8203 数据手册

STV8203

USING STV8203

1 - Hardware

1.a - Power Supplies (see Figure 2)

between stereo or mono signals in the playback

mode in case of marginal noise conditions.

The IC is using two main power supplies :

- DV_DD5supplies all the digital part V_Nom.= 5V.

This power supply can be switched-off in stand-

by mode.

- AV_CCsuppliestheaudio matrixpart : ifV_Nom.= 8V

then the output voltage swing on output pins can

reach2V_RMS, ifV_Nom.= 5V thentheoutputvoltage

1.d - Stand-by

Stand-bywith THRU mode : the analog part of the

device has its own power supply (AV_CC) allowing

thispart to keepworking even when thedigitalpart,

stand-by.

swing on output pins can reach 1V_RMS

In this case, the audio matrix is put in a special

setting :

- LIL1 to AOL2,

Figure 2

- LIR1 to AOR2,

- LIL2 to AOL1,

- LIR2 to AOR1,

DV_DD5

AV_CC

DEMODULATION

AND CONTROL PART MATRIX

AUDIO

- input gain = 0dB.

This allows to achieve a ”THRU” mode from

SCART1 input to SCART2 output and SCART2

input to SCART1 output, providing a copy facility

from SCARTIN to SCARTOUT.

Pins 5-32-42

GND

2 - Software

1.b - Sound Subcarrier Filters

Two modes of operation are available :

Sound demodulation and decoding are very easy

withthisdeviceprovidingallthenecessaryfunctions

for that purpose, including the channel filters.

TheseFIR base-bandfilters givethe bestselectivity

ofthedesiredchannelandprovidesinNICAMmode

the correct cosine roll-off response.

This implies that no external filters are required

(except may be a simple high-pass filter, if the saw

filters and sound IF demodulators used in the ap-

plication create picture interferences).

2.a - Optimized Program Mode

Four standardshavedefault setting stored in order

to allow a very easy programmation. Only some

registers may have to be programmed (these reg-

istersare shown in bold in the Figure 3) but in most

cases, the reset values will be sufficient. In Fig-

ure 3, CTL and STATrepresent registerswhich are

controlledby the ”standardprocessor”.These reg-

isters are located between address 23Hex and

3CHex in the complete list of registers.

The filters can be automaticallyset for B/G/H/I/L/L’

standards. They can also be easily tuned through

I²C for M, D, K, K1.

2.b - Advanced Operation Mode

In that mode, all the read/write registers (as men-

tionned in the complete list) can be programmed

manually and changed from their reset values.

1.c - Audio Matrix

The mono output (MOUT) can output L1, R1 or

(L1+R1)/2 signal. A typical application is the possi-

bilityto recorda selected channelin monomode on

thelineartrackof a VCRseparatelyfromtherecord-

ingofthestereosignal,providingthefacilitytoselect

The additionnal registers accessible in this mode

are shown in bold in Figure 4. This mode can be

selected by putting the bits [3:0] of AO-CONTROL

7/31

1...4 5 678 9 10...31

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STV8211	STMICROELECTRONICS	VIDEO & SOUND IF SYSTEM	获取价格

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