收藏本站
LA1787M
? Separation adjustment (pin 19)
5 k ?
To the
subdecoder
Larger
19
A12094
20 k ?
0.047 μ F
C
A12093
Fig. 49
The separation is adjusted by modifying the input level to the subdecoder with the variable resistor connected to
pin 19. Since only the sub-modulation level is changed by changing the variable resistor setting, the monaural
(main) output level is not changed. Furthermore, degradation of high band separation in the decoder can be avoided
if the impedance of the external capacitor (C) in the subchannel frequency band (23 to 53 kHz) is made sufficiently
smaller than the variable resistor.
6. MRC Circuit
VCC
2 μ A
S-meter
FM
S-meter
DC buffer
MRC
100 ?
QMRC
6.4 k ?
3.6 k ?
10 k ?
75 pF 1 k ?
30 k ?
24
32
Noise amplifier
27
High-pass filter with
+
Fc = 70 kHz + amplifier
+
C27
VCC
An external transistor equivalent
to the 2SC536 is required
To the SNC, pin 28
Reason: A QMRC level shifter is
required to allow a simplified MRC
circuit to be used in the LA1787M.
A11768
Fig. 50
No. 6655-43/54
发布紧急采购，3分钟左右您将得到回复。

采购需求

(若只采购一条型号，填写一行即可)

发布成功！您可以继续发布采购。也可以进入我的后台，查看报价

发布成功！您可以继续发布采购。也可以进入我的后台，查看报价

*型号 *数量 厂商 批号 封装
添加更多采购

我的联系方式

*
*
*
相关PDF资料
LAH 100-P SENSOR CURRENT 100A TH
LAH 25-NP SENSOR CURRENT 25A TH
LAH 50-P SENSOR CURRENT 50A TH
LAX 100-NP SENSOR CURRENT 100A 12V TH
LB01KW01-5F24-JF NDICATOR LED SQUARE FOR LB SER
LC01707PLF-TLM-H IC FM DATA TUNER AUTO 44-VQFN
LC104R2K MINITHERMISTORS 100K BETA 4140K
LC1AWT LAMP LC SERIES WHITE
相关代理商/技术参数
LA1787NM 制造商:SANYO 制造商全称:Sanyo Semicon Device 功能描述:Single-Chip Car Radio System IC
LA1787NM_09 制造商:SANYO 制造商全称:Sanyo Semicon Device 功能描述:Single-Chip Car Radio System IC
LA1787NM-MPB-E 制造商:ON Semiconductor 功能描述:ANALOG CAR RADIO TUNER - Trays 制造商:ON Semiconductor 功能描述:FTRAY / ANALOG CAR RADIO TUNER
LA1787NM-TLM-E 制造商:ON Semiconductor 功能描述:ANALOG CAR RADIO TUNER - Tape and Reel 制造商:ON Semiconductor 功能描述:REEL / ANALOG CAR RADIO TUNER
LA17B-10H 制造商:LIGITEK 制造商全称:LIGITEK electronics co., ltd. 功能描述:LED ARRAY
LA17B-5H 制造商:LIGITEK 制造商全称:LIGITEK electronics co., ltd. 功能描述:LED ARRAY
LA1800 制造商:SANYO 制造商全称:Sanyo Semicon Device 功能描述:FM/AM Single-Chip Radio
LA1805 制造商:Panasonic Industrial Company 功能描述:IC