- 您现在的位置：买卖IC网 > PDF目录30715 > LA1867NM AM/FM, AUDIO DEMODULATOR, PQFP44 PDF资料下载
参数资料
| 型号： | LA1867NM |
| 元件分类： | 接收器 |
| 英文描述： | AM/FM, AUDIO DEMODULATOR, PQFP44 |
| 封装： | QIP-44 |
| 文件页数： | 11/32页 |
| 文件大小： | 1074K |
| 代理商： | LA1867NM |
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页第28页第29页第30页第31页第32页
3. FM muting on: Pin 33 (R33 = 100 kΩ)
The –3 dB limiting sensitivity can be changed by varying R33.
(Currently, R33 is 25 kΩ to set the –3 dB limiting sensitivity to 8 dBμ.)
4. FM muting attenuation adjustment: Pin 22 (R22 is a 30 or 50 kΩ variable resistor)
The pin 23 voltage is divided by the R22 variable resistor and input to pin 22. The no-input noise convergence is
determined by value of the pin 22 voltage.
(The LA1867NM has a noise convergence design target of from 5 dB to 30 dB.)
5. Muting time constant
The LA1867NM allows the volume level to be changed gradually for field variations during weak field reception by
setting the attack and recovery times for the soft mute function.
6. FM mute off function
The muting function is turned off if pin 22 is forcibly connected to ground.
No. 4619-19/32
LA1867NM
Attack time setting
ta = R23 * C22 = 940 μsec
Recovery time setting
tr = C22 * R23 = 23500 μsec
Unit (resistance: Ω, capacitance: F)
相关PDF资料 |
PDF描述 |
|---|---|
| LA1875M | AM/FM, AUDIO SINGLE CHIP RECEIVER, PDSO36 |
| LA1875M | AM/FM, AUDIO SINGLE CHIP RECEIVER, PDSO36 |
| LA1883M | AM/FM, AUDIO SINGLE CHIP RECEIVER, PQFP64 |
| LA1886M | AM/FM, AUDIO SINGLE CHIP RECEIVER, PQFP64 |
| LA1888NM | AM/FM, AUDIO SINGLE CHIP RECEIVER, PQFP64 |
相关代理商/技术参数 |
参数描述 |
|---|---|
| LA1867NM-MPB-E | 制造商:ON Semiconductor 功能描述: |
| LA186B-9SEF9UG-3-PF | 制造商:LIGITEK 制造商全称:LIGITEK electronics co., ltd. 功能描述:LED ARRAY |
| LA186B-9SEF-PF | 制造商:LIGITEK 制造商全称:LIGITEK electronics co., ltd. 功能描述:LED ARRAY |
| LA186B-DBK-2-PF | 制造商:LIGITEK 制造商全称:LIGITEK electronics co., ltd. 功能描述:LED ARRAY |
| LA186B-DBK-PF | 制造商:LIGITEK 制造商全称:LIGITEK electronics co., ltd. 功能描述:LED ARRAY |
发布紧急采购，3分钟左右您将得到回复。