參數(shù)資料
型號(hào)： TDA7540NTR
廠商： STMICROELECTRONICS
元件分類： 調(diào)諧器
英文描述： 2-BAND, AUDIO TUNER, PQFP80
封裝： 14 X 14 MM, 1.40 MM HEIGHT, ROHS COMPLIANT, LQFP-80
文件頁(yè)數(shù)： 71/76頁(yè)
文件大?。?/td> 1225K
代理商： TDA7540NTR
TDA7540N
Application notes
9
Application notes
Following items are important to get highest performance of TDA7540N in application:
1.
In order to avoid leakage current from PLL loop filter input to ground a guardring is
recommended around loop filter PIN’s with PLL reference (VREF2) voltage potential.
2.
Distance between Xtal and VCO input PIN 18 should be far as possible and Xtal
package should get a shield versus ground.
3.
Blocking of VCO supply should be near at PIN 20 and PIN 21.
4.
Blocking of VCC2 supply should be near at PIN 64 and PIN 61.
5.
Wire lenght to FM mixer1-input and -output should be symetrically and short.
6.
FM demodulator capacitance at PIN 56 should be sense connected as short as
possible versus demodulator ground at PIN 57.
7.
Wire lenght from AM mixer tank output to 9KHz ceramic filter input has to be short as
possible.
8.
To minimize “AM TWEET” the AM demodulator capacitor should be connected versus
GNDVCC1 at PIN 41 and FSU output at PIN 22 should be filtered with capacitor of
about 2,2nF versus GNDVCC2.
相關(guān)PDF資料
PDF描述
TDA7540N 2-BAND, AUDIO TUNER, PQFP80
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TDA7561 38 W, 4 CHANNEL, AUDIO AMPLIFIER, PZFM25
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相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
TDA7541 功能描述:音頻放大器 AM/FM car radio Tuner IC Decoder RoHS:否 制造商:STMicroelectronics 產(chǎn)品:General Purpose Audio Amplifiers 輸出類型:Digital 輸出功率: THD + 噪聲: 工作電源電壓:3.3 V 電源電流: 最大功率耗散: 最大工作溫度: 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:TQFP-64 封裝:Reel
TDA7541B 功能描述:音頻放大器 AM/FM car radio Tuner IC Decoder RoHS:否 制造商:STMicroelectronics 產(chǎn)品:General Purpose Audio Amplifiers 輸出類型:Digital 輸出功率: THD + 噪聲: 工作電源電壓:3.3 V 電源電流: 最大功率耗散: 最大工作溫度: 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:TQFP-64 封裝:Reel
TDA7541BW 功能描述:音頻放大器 AM/FM car radio Tuner IC Decoder RoHS:否 制造商:STMicroelectronics 產(chǎn)品:General Purpose Audio Amplifiers 輸出類型:Digital 輸出功率: THD + 噪聲: 工作電源電壓:3.3 V 電源電流: 最大功率耗散: 最大工作溫度: 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:TQFP-64 封裝:Reel
TDA7541BWTR 功能描述:音頻放大器 AM/FM car radio Tuner IC Decoder RoHS:否 制造商:STMicroelectronics 產(chǎn)品:General Purpose Audio Amplifiers 輸出類型:Digital 輸出功率: THD + 噪聲: 工作電源電壓:3.3 V 電源電流: 最大功率耗散: 最大工作溫度: 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:TQFP-64 封裝:Reel
TDA7541TR 制造商:STMICROELECTRONICS 制造商全稱:STMicroelectronics 功能描述:AM/FM car radio tuner IC with stereo decoder and intelligent selectivity system
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