參數(shù)資料
型號： 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
文件頁數(shù)： 63/76頁
文件大小： 1225K
代理商： TDA7540NTR
Appendix
TDA7540N
Block diagram quality detection principle (without overdeviation correction)
Table 52.
Block diagram quality detection principle
Signal
Low
High
ac
No adjacent channel
Adjacent channel present
ac+
No strong adjacent channel
Adjacent channel higher as ac
sm
Fieldstrength higher as softmute threshold
Fieldstrength lower as softmute threshold
dev
Deviation lower as threshold DWTH
Deviation higher as threshold DWTH
dev+
Deviation lower as threshold DTH*DWTH
Deviation higher as threshold DTH*DWTH
inton
ISS filter off by logic (wide)
ISS filter on by logic
int80
ISS filter 120kHz (mid)
ISS filter 80kHz (narrow)
Table 53.
Functional mode quality detection
Input signals
Mode1
Mode2
ac
ac+
sm
dev
dev+
inton
int80
Function
inton
int80
Function
0
000
0
wide
0
wide
0
001
0
wide
0
wide
0
001
1
0
wide
0
wide
0
1
0
1
narrow
1
narrow
0
011
0
wide
1
0
mid
0
011
1
0
wide
0
wide
1
000
0
1
narrow
1
0
mid
1
0
1
narrow
1
narrow
1
001
0
1
0
mid
1
0
mid
1
101
1
0
mid
1
narrow
1
0
1
0
1
narrow
1
narrow
1
0
1
narrow
1
narrow
1
011
0
1
0
mid
1
0
mid
1
111
0
1
0
mid
1
narrow
1
011
1
0
mid
1
0
mid
1
111
1
0
mid
1
narrow
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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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