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參數(shù)資料
| 型號(hào)： | TB1262F |
| 廠商： | Toshiba Corporation |
| 英文描述： | TOSHIBA BiCMOS INTEGRATED CIRCUIT, SILICON MONOLITHIC |
| 中文描述： | 東芝的BiCMOS集成電路，硅單片 |
| 文件頁(yè)數(shù)： | 39/66頁(yè) |
| 文件大?。?/td> | 1544K |
| 代理商： | TB1262F |
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TB1261F/TB1262F
2002-6-30 39 / 66
Note
S11
Items/Symbols
AM reduction ratio
/ AMR4.5MH
/ AMR4.5ML
/ AMR5.5M
/ AMR6.0M
/ AMR6.5M
Bus conditions
SIF-Freq. :
4.5M/5.5M/6.0M/
6.5M
AUDIO ATT :
127
Au Gain : 0/1
Others : Preset
Measurement methods
(1) Set the bits of “SIF-Freq.” to “11”, “Au Gain” to “0”.
(2) Input a signal that 4.5[MHz], 100[dB( V)], 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( V)], 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( V)], 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).
(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])
S12
Demodulation band
width of the FM
demodulator
/ fpH(s)1
/ fpL(s)1
SIF-Freq. : 4.5M
AUDIO ATT :
127
Others : Preset
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