- 您现在的位置：买卖IC网 > PDF目录225191 > SL1461SA/KG/MPAD (INTEL CORP) SPECIALTY TELECOM CIRCUIT, PDSO16 PDF资料下载
参数资料
| 型号： | SL1461SA/KG/MPAD |
| 厂商： | INTEL CORP |
| 元件分类： | 通信及网络 |
| 英文描述： | SPECIALTY TELECOM CIRCUIT, PDSO16 |
| 封装： | 0.150 INCH, MS-012AC, SOIC-16 |
| 文件页数： | 2/13页 |
| 文件大小： | 377K |
| 代理商： | SL1461SA/KG/MPAD |
10
SP1461SA Advance Information
Lock range
Lock range should be symmetric about the centre of the
S-curve. When the oscillator is sitting in the centre of the
S-curve, the two video outputs will be at the same DC voltage.
RF oscillator design
The standard application circuit for the SL1461SA is
shown in Fig.3 The layout of the VCO tank should follow
normal good RF techniques - ie as compact as possible. This
will minimise parasitics, thus giving improved VCO linearity
and stability. The PCB layout used for testing purpose is
shown in Fig. 10.
Setting up of oscillator
The VCO should be set up so that the desired input RF
frequency is at the centre of the lock range. This will coincide
with the centre of the S-curve and the point at which the AFC
toggles when set to zero deadband.
The easiest way to centralise the VCO is to input an RF
carrier which is being modulated by a low frequency
squarewave. The tuning coil(s) should be adjusted until the
AFC voltage toggles between 0.2V and VCC-0.7V. The smaller
the FM deviation of the squarewave used, the more accurate
the setting will be.
A pre-emphasised video input containing black to white
transitions can also be used for this setting, since the DC
content in a pre-emphased video is much less than that in non
pre–emphasised video. This is important as any dc content in
the input waveform will introduce an offset in the AFC transi-
tion point.
The setting can be confirmed by measuring the DC
voltage on the two video outputs, the voltages should be the
same when the oscillator is centred around the incoming
frequency. This DC measurement must be carried out with an
unmodulated carrier of the required frequency. Modulation
must not be present, since by definition, the dc voltages would
be changing, thus making accurate measurement difficult.
相关PDF资料 |
PDF描述 |
|---|---|
| SL1461SA/KG/MPAS | SPECIALTY TELECOM CIRCUIT, PDSO16 |
| SL1461SA/KG/MPBD | SPECIALTY TELECOM CIRCUIT, PDSO16 |
| SL1461SA/KG/MPBS | SPECIALTY TELECOM CIRCUIT, PDSO16 |
| SL1K-67132L-55SHXXX | 2K X 8 MULTI-PORT SRAM, 55 ns, CDIP48 |
| SL1K-67142V-55SHXXX | 2K X 8 MULTI-PORT SRAM, 55 ns, CDIP48 |
相关代理商/技术参数 |
参数描述 |
|---|---|
| SL1466 | 制造商:ZARLINK 制造商全称:Zarlink Semiconductor Inc 功能描述:Wideband PLL FM Demodulator |
| SL1466KG | 制造商:ZARLINK 制造商全称:Zarlink Semiconductor Inc 功能描述:Wideband PLL FM Demodulator |
| SL1466QP1S | 制造商:ZARLINK 制造商全称:Zarlink Semiconductor Inc 功能描述:Wideband PLL FM Demodulator |
| SL1496C | 制造商:PLW 功能描述:1496C 制造商:PSSB 功能描述:1496C |
| SL14B | 制造商:SR COMPONENTS 功能描述: 制造商:SR Components Inc 功能描述: |
发布紧急采购，3分钟左右您将得到回复。