Continued from preceding page.
Pin No.
Symbol
VDC (V)
15
LOW BOOST NF
0.75
LA4590W
Equivalent circuit
Unit (resistance: Ω, capacitance: F)
Pin function
• Low boost amplifier NF pins
16
POWER IN2
0.75
18
POWER IN1
• Power input pins
• The input resistance is 10 kΩ.
• Buzz suppression capacitors are built in.
17
L.P1
0.75
• Low boost primary low pass pin
19
NFC2
0.75
20
NFC1
21
PRE NF1
0.75
28
PRE NF2
22
PRE OUT1
0.45
27
PRE OUT2
• Preamplifier NF pins
• No capacitors are required for these noise
filters.
• Each output pin is connected to the
corresponding NF pin by a 200 kΩ resistor.
Continued on next page.
No. 4468-6/19