- 您现在的位置：买卖IC网 > PDF目录98158 > TA8865BN AUDIO/VIDEO DEMODULATOR, PDIP36 PDF资料下载
参数资料
| 型号： | TA8865BN |
| 元件分类： | 接收器 |
| 英文描述： | AUDIO/VIDEO DEMODULATOR, PDIP36 |
| 封装： | 0.500 INCH, 1.78 MM PITCH, SHRINK, PLASTIC, DIP-36 |
| 文件页数： | 11/27页 |
| 文件大小： | 571K |
| 代理商： | TA8865BN |
第1页第2页第3页第4页第5页第6页第7页第8页第9页第10页当前第11页第12页第13页第14页第15页第16页第17页第18页第19页第20页第21页第22页第23页第24页第25页第26页第27页
TA8865BN
2001-02-21 19/27
Note 26: PIF VCO Pull-In Range
(1) Same as above.
(2) Set Tp17 (LOCK Filter) to 2V and, while observing Tp16 (Video Output), gradually decrease input
frequency until PLL locks. The difference between this frequency and 38.9MHz is fPpu1. In the same way,
gradually increase input frequency until PLL locks. The difference between this frequency and 38.9MHz
is fPpL1.
(3) Set Tp17 to 6V, and make the same measurement as in (2) above with fPpU2 and fPpL2 as the
differences.
Note 27: PIF VCO Control Sensitivity
(1) Set SW6 to a and SW3 to a, with no input, apply 3V to Tp10.
(2) Measure Tp18 voltage (VβP).
(3) Using a spectrum analyzer, measure the frequency of P-VCO leaking to Tp16. Set the Tp18 voltage to
(VβP+0.2V) and measure P-VCO frequency (fβ1), set the Tp18 voltage to (VβP0.2V) and measure
P-VCO frequency (fβ2). Determine βP using the following equation :
/ V]
[MHz
[mV]
400
[kHz]
|
fββ
|
βP
=
Note 28: 1st SIF Output Amplitude (BG), SIF FM Input Sensitivity
(1) Set SW6 to a, input SIG1 to Tp8, and input SIG16 to Tp7.
(2) Measure Tp19 output amplitude (V1s).
(3)Gradually lower the input level and measure the input level at which Tp19 output amplitude reaches 6dB.
The reference value (0dB) is the V1s.
Note 29: 1st SIF Output Amplitude (L)
(1) Apply 5V to pin 34 (SW6-b). Input SIG1 to Tp8. Input SIG2 to Tp7
(2) Measure Tp19 Output Amplitude (V1SL).
Note 30: SIF AGC Range
(1) (SIF AGC range) = 100 (S-FM input sensitivity) [dB]
Note 31: 1st SIF No-Signal Level
(1) Set SW6 to a, input SIG1 to Tp8, and no signal to Tp7, apply 3V to Tp5.
(2) Measure Tp3 voltage.
Note 32: FM Limiting Sensitivity
(1) Set SW1 to b, SW2 to a and SW6 to a, input SIG11 to Tp20 (SW5-b), and set f0 to 6.0MHz.
(2) Measure Tp3 output amplitude (VoFM [mVrms])
(3) Gradually lower the input level and measure the input level at which Tp3 output amplitude VoFM reaches
6dB.
The reference value (0dB) is the Tp3 output amplitude when input signal amplitude is 110dBV.
相关PDF资料 |
PDF描述 |
|---|---|
| TA8867AN | SPECIALTY CONSUMER CIRCUIT, PDIP48 |
| TA8867BN | SPECIALTY CONSUMER CIRCUIT, PDIP48 |
| TA8874Z | SPECIALTY CONSUMER CIRCUIT, PZIP21 |
| TA8876FA | AUDIO/VIDEO DEMODULATOR, PDSO30 |
| TA8880AN | SPECIALTY CONSUMER CIRCUIT, PDIP64 |
相关代理商/技术参数 |
参数描述 |
|---|---|
| TA8867AN | 制造商:TOSHIBA 制造商全称:Toshiba Semiconductor 功能描述:VIDEO, CHROMA, AND SYNC. SIGNAL PROCESSING IC FOR PAL/NTSC-SYSTEM COLOR TELEVISIONS |
| TA8867BN | 制造商:TOSHIBA 制造商全称:Toshiba Semiconductor 功能描述:VIDEO, CHROMA, AND SYNC. SIGNAL PROCESSING IC FOR PAL/NTSC-SYSTEM COLOR TELEVISIONS |
| TA8874Z | 制造商:TOSHIBA 制造商全称:Toshiba Semiconductor 功能描述:SOUND MULTIPLEX BROADCAST DEMODULATOR IC FOR DOMESTIC TV/VTR |
| TA8874Z_01 | 制造商:TOSHIBA 制造商全称:Toshiba Semiconductor 功能描述:SOUND MULTIPLEX BROADCAST DEMODULATOR IC FOR DOMESTIC TV / VTR |
| TA8876FA | 制造商:TOSHIBA 制造商全称:Toshiba Semiconductor 功能描述:FOR LCD TVS, PIF, QIF, AND SIF SYSTEMS |
发布紧急采购，3分钟左右您将得到回复。