- 您現(xiàn)在的位置：買賣IC網(wǎng) > PDF目錄373621 > TDA7340G (意法半導(dǎo)體) AUDIO SIGNAL PROCESSOR PDF資料下載
參數(shù)資料
| 型號： | TDA7340G |
| 廠商： | 意法半導(dǎo)體 |
| 英文描述： | AUDIO SIGNAL PROCESSOR |
| 中文描述： | 音頻信號處理器 |
| 文件頁數(shù)： | 19/27頁 |
| 文件大?。?/td> | 205K |
| 代理商： | TDA7340G |
第1頁第2頁第3頁第4頁第5頁第6頁第7頁第8頁第9頁第10頁第11頁第12頁第13頁第14頁第15頁第16頁第17頁第18頁當(dāng)前第19頁第20頁第21頁第22頁第23頁第24頁第25頁第26頁第27頁
VPEAK
(V)
D95AU332A
20
DEVIATION(KHz)
0.9
1.3
2.3
3.2
DETECTOR OFF (11)
32.5
45
75
OVM=10
OVM=01
OVM=00
Figure 7:
Behaviourof the DeviationDependentThreshold Adiust (Over DeviationDetector)
2.2V(00)
1.8V(01)
1.2V(10)
TRIG. THRESHOLD
0.9V
VPEAK
E’
D95AU333A
MONO
STEREO
noisy signal
good signal
ATC_SB OFF (11)
NOISE
≈
3V
Figure 6:
Behaviourof the Field StrengthControlled Threshold Adjustment
MUTE & PAUSEFEATURES
The TDA7340G provides three types of mute,
controlled via I2C bus (see pag.12, MUTE BYTE
register).
SOFT MUTE
Bit
D0=1
→
SoftMute ON
Bit
D0=0
→
Soft Mute OFF
It allows an automatic soft muting and unmuting
of the signal.
The time constant is fixed by an external capaci-
tor Csm inserted between pin Csm and ground.
Once fixed the external capacitor, two different
slopes (time constant) are selectable by program-
mationof bitD1.
Bit
D1=1
→
fast slope (I=Imax)
Bit
D1=0
→
slow slope (I=Imin)
The soft mute generates a gradual signal de-
creasing avoiding big click noise of an immediate
high attenuation, without necessity to program a
sequence of decreasing volume levels. A re-
sponse example is reported in Fig.12 (mute) and
Fig.13 (unmute). The final attenuation obtained
with soft muteON is 60dB typical.
The used reference parameter is the delay time
taken to reach 20dB attenuation (no matter what
the signal level is).
Usinga capacitorCsm=22nF this delay is:
d= 1.8mswhenselectedFastslopemode(bitD1=1)
d= 25ms whenselectedSlowslopemode(bitD1=0)
TDA7340G
19/27
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| TDA7340 | AUDIO SIGNAL PROCESSOR |
| TDA7340P | AUDIO SIGNAL PROCESSOR |
| TDA7342 | DIGITALLY CONTROLLED AUDIO PROCESSOR |
| TDA7343 | DIGITALLY CONTROLLED AUDIO PROCESSOR |
| TDA7343D | DIGITALLY CONTROLLED AUDIO PROCESSOR |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| TDA7340P | 制造商:STMICROELECTRONICS 制造商全稱:STMicroelectronics 功能描述:AUDIO SIGNAL PROCESSOR |
| TDA7340S | 功能描述:音頻 DSP Audio Signal Proc RoHS:否 制造商:Texas Instruments 工作電源電壓: 電源電流: 工作溫度范圍: 安裝風(fēng)格: 封裝 / 箱體: 封裝:Tube |
| TDA7342 | 制造商:STMICROELECTRONICS 制造商全稱:STMicroelectronics 功能描述:Digitally controlled audio processor |
| TDA7342_06 | 制造商:STMICROELECTRONICS 制造商全稱:STMicroelectronics 功能描述:Digitally controlled audio processor |
| TDA7342EQ2N | 制造商:STMICROELECTRONICS 制造商全稱:STMicroelectronics 功能描述:Digitally controlled audio processor |
發(fā)布緊急采購，3分鐘左右您將得到回復(fù)。