参数资料
型号: LA1845NV
元件分类: 接收器
英文描述: AM/FM, AUDIO SINGLE CHIP RECEIVER, PDSO24
封装: 0.275 INCH, SSOP-24
文件页数: 6/10页
文件大小: 535K
代理商: LA1845NV
LA1845NV
No.7931-5/10
Continued from preceding page.
Pin No.
Pin function
Pin voltage
Equivalent circuit
Notes
19
AM detector output
0V (FM)
1.5V (AM)
Output impedance ro = 3.3k
20
S meter,
AM AGC
0.2V (FM)
0.9V (AM)
The resistance of the built-in resistor R is 13.9k
.
The SD response during seek operation is
determined with the external capacitor connected to
this pin.
21
AM RF input
Vreg
Must be used at the same potential as pin 22.
22
AFC
Vreg
The FM SD bandwidth can be adjusted with the
external resistor connected between this pin and
pin 3 (Vreg).
23
OSC
VCC
Connect the oscillator coil between this pin and pin
9 (VCC).
Note : Impedance of the secondary oscillator coil
must be 5k
or higher.
24
Oscillator buffer
output,
FM SD sensitivity
adjustment
VCC-1.4
The FM SD sensitivity can be adjusted with an
external resistor connected to this pin.
Output impedance R = 200
Note : Resistance of the external resistor
connected to the pin 24 must be 3.3k
or higher.
23
R
24
20
R
19
21
22
相关PDF资料
PDF描述
LA1845NV AM/FM, AUDIO SINGLE CHIP RECEIVER, PDSO24
LA1845N AM/FM, AUDIO SINGLE CHIP RECEIVER, PDIP24
LA1845N AM/FM, AUDIO SINGLE CHIP RECEIVER, PDIP24
LA1851N AM/FM, AUDIO SINGLE CHIP RECEIVER, PDIP30
LA1851NM AUDIO SINGLE CHIP RECEIVER, PDSO30
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