參數(shù)資料
型號(hào)： TB1261F
元件分類： 消費(fèi)家電
英文描述： SPECIALTY CONSUMER CIRCUIT, PQFP80
封裝： 14 X 20 MM, 0.80 MM PITCH, PLASTIC, QFP-80
文件頁(yè)數(shù)： 33/66頁(yè)
文件大?。?/td> 1538K
代理商： TB1261F
TB1261F/TB1262F
2002-6-30 39 / 66
Note
Items/Symbols
Bus conditions
Measurement methods
S11
AM reduction ratio
/ AMR4.5MH
/ AMR4.5ML
/ AMR5.5M
/ AMR6.0M
/ AMR6.5M
SIF-Freq. :
4.5M/5.5M/6.0M/
6.5M
AUDIO ATT :
127
Au Gain : 0/1
Others : Preset
(1) Set the bits of “SIF-Freq.” to “11”, “Au Gain” to “0”.
(2) Input a signal that 4.5[MHz], 100[dB(mV)], 25[kHz] deviated
by 400[Hz] sine wave at pin 73.
(3) Measure the amplitude at pin 65 (vo#65[mVrms]).
(4) Input a signal that 4.5[MHz], 100[dB(mV)], and 30 [%]
modulated by 400 [Hz] sine wave at pin 73.
(5) Measure the amplitude at pin 65 (v#65[mVrms]).
(6) AMR4.5H[dB] = 20log(v#65/ vo#65)
(7) Input a signal that 4.5[MHz], 100[dB(mV)], 25[kHz] deviated
by 400[Hz] sine wave at pin 73.
(8) Set the bits of “Au Gain” to “1”.
(9) Do same measuring as above (3)~(6) (AMR4.5ML).
(10) Set the bits of “SIF-Freq.” to “00”.
(11) Change the frequency of the input signals to 5.5MHz, and
change the deviation of the input signal to 50[kHz].
(12) Do same measuring as above (3)~(6) (AMR5.5M).
(13) Set the bits of “SIF-Freq.” to “01”.
(14) Change the frequency of the input signals to 6.0MHz, and
do same measuring as above (3)~(6) (AMR6.0M).
(15) Set the bits of “SIF-Freq.” to “10”.
(16) Change the frequency of the input signals to 6.5MHz, and
do same measuring as above (3)~(6) (AMR6.5M).
S12
Demodulation band
width of the FM
demodulator
/ fpH(s)1
/ fpL(s)1
SIF-Freq. : 4.5M
AUDIO ATT :
127
Others : Preset
(1) Input a signal that 4.5[MHz], 100[dB( V)], 25[kHz]
deviated by 400[Hz] sine wave at pin 73.
(2) Measure the amplitude at pin 65(vo#65 [V(p-p)]).
(3) Increase the input signal frequency, measure the input
signal frequency at which the output amplitude at pin 65
turn to be -3[dB] against “vo#65” (fpH(s)1[MHz])
(4) Decrease the input signal frequency, measure the input
signal frequency at which the output amplitude at pin 65
turn to be -3[dB] against “vo#65” (fpL(s)1[MHz])
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相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
TB1262F 制造商:TOSHIBA 制造商全稱:Toshiba Semiconductor 功能描述:TOSHIBA BiCMOS INTEGRATED CIRCUIT, SILICON MONOLITHIC
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TB12A 制造商:Lenline 功能描述:
TB12A6C 制造商:STMicroelectronics 功能描述:TB12A6C - Rail/Tube
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