收藏本站
LA1787M
Continued from preceding page.
Pin No.
Function
Description
Equivalent circuit
VCC
IF OUT 53
? Input and output pin or the first
IF amplifier
? Inverting amplifier
300 ?
300 ?
53
IF amplifier output
V56 = 2 V
56
IF amplifier input
Input impedance: R IN = 330 ?
2.75V
V53 = 5.3 V
Output impedance
R OUT = 330 ?
IF IN 56
A13590
Pin 40 VCC
Pin 40 VCC
54
The mixer coil connected to the
OSC
54
49
Mixer output: 130 μA
Mixer input
pin 54 mixer output must be
wired to V CC (pin 40).
The pin 49 mixer input
impedance is 330 ?
49
330 ?
A13591
Pins 55 and 58 include built-in
DC cut capacitors.
The AGC on level is determined
by the values of the capacitors
C1 and C2.
62 pin
VCC
W-AGC
N-AGC
55
58
W-AGC IN
AM SD ADJ
N-AGC IN
Pin 55 functions as the SD
sensitivity adjustment pin in
AM mode.
C1
55
30pF
50pF
Muting attenuation
adjustment pin
The output current I55 is 50 μA,
and V55 varies depending on the
value of the external resistor.
The SD function operates by
comparing V55 with the S-meter
voltage.
MIX
IN
58
C2
50 μ A
+
MIX
OUT
–
AM SD
Signal meter
A13592
Continued on next page.
No. 6655-17/54
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