LG GSA-4167B - Manual (Page 59)

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1.4 Pin Functions
It corresponds to the following signs as a pin I/O specification.
AI : Analog Input
AO : Analog Output
AIO : Analog Input/Output
I : Standard Input
IU : Standard Input with Pull Up
O : Standard Output
TO : Standard Three State Output
IO : Standard Input/Output
IOU : Standard Input/Output with Pull Up
5I : 5V Tolerant Input
5O : 5V Tolerant Output
5TO : 5V Tolerant Three State Output
5IO : 5V Tolerant Input/Output
PW : Power Supply Pin
GND : Earth Pin
Data PLL/PRML Pin List
Pin Name Pin No. I/O destination Function
VINP 190 AI AFE RF signal normal phase input pin
VINN 188 RF signal counter phase input pin
REXT 194 AO External Resistance Resistor connect pin for reference current generation
PTEST1 192 AO External Resistance PRML/Data PLL moniter D/A output pin
PTEST2 196 PRML/Data PLL moniter D/A output pin
PTEST3 198 Data PLL VCO control voltage monitor pin
Wpll Pin List
Pin Name Pin No. I/O destination Function
W1LPF0 165 AO External Components Write PLL1 filter connect pin (0)
W1LPF1 164 Write PLL1 filter connect pin (1)
W1LPF2 163 Write PLL1 filter connect pin (2)
W2LPF0 162 AO External Components Write PLL2 filter connect pin (0)
W2LPF1 161 Write PLL2 filter connect pin (1)
W2LPF2 160 Write PLL2 filter connect pin (2)