LA4590W
Pin Functions and Equivalent Circuits (VCC = 1.2 V)
Pin No.
Symbol
VDC (V)
Equivalent circuit
1
R.F OUT 1
1.13
45
R.F OUT 2
Unit (resistance: Ω, capacitance: F)
Pin function
• R.F OUT1 can be switched on/off: on when pin
43 is at ground.
2
POWER OUT1
7
POWER OUTC
0.6
13
POWER OUT2
3
POWER NF REF1
9
POWER NF REFC
0.75
12
POWER NF REF2
4
POWER NF1
8
POWER NFC
0.75
11
POWER NF2
5
POWER H.P1
0.75
10
POWER H.P2
• The output spans (pin 2 to pin 7, and pin 13 to
pin 7) are connected by 160 Ω resistors.
• Used as the power NF connections.
• Power NF pins
• Connected to Vref through a 1 kΩ resistor
when low boost is on, i.e., when pin 41 is
floating.
14
L.P2
0.75
• Low boost secondary low pass pin
Continued on next page.
No. 4468-5/19