LA1145, 1145M
LA1145 Equivalent Circuit Block Diagram
S-meter detector
Quadrature
detector
IF amp IF amp IF amp
Voltage
regulator
IF
count
Hole
detector/
mute
driver
LA1145M Equivalent Circuit Block Diagram
S-meter
Mute
driver
Unit (resistance: Ω, capacitance: F)
S-meter
detector
Hole
detector/
mute
driver
Voltage
regulator
IF
count
Start point Gradient
* RCT is a resistor for variable gain.
Normally 0 Ω.
No. 2725-4/17