L2042A-08SR ALSC [Alliance Semiconductor Corporation], L2042A-08SR Datasheet - Page 2

• Manufacturer Part Number: L2042A-08SR
• Description: 2.5V LCD Panel Reduction IC
• Manufacturer: ALSC [Alliance Semiconductor Corporation]

October 2003
rev 1.0
Pin Configuration
Pin Description
Pin#
Modulation Selection Table
CP0
1
2
3
4
6
7
5
8
0
0
0
0
1
1
1
1
Pin Name
ModOUT
CP1
SSON#
CLK IN
0
0
1
1
0
0
1
1
VSS
VDD
CP0
CP1
SR0
SR0
0
1
0
1
0
1
0
1
Type
P
O
P
I
I
I
I
I
32.5MHz
0.49
1.71
1.69
1.09
1.68
1.29
1.2
0.8
External reference frequency input. Connect to an externally generated
reference signal.
Digital logic input used to select charge pump current. Refer Modulation
Selection Table. This pin has an internal pull-up resistor.
Digital logic input used to select charge pump current. Refer Modulation
Selection Table. This pin has an internal pull-up resistor.
Ground to entire chip. Connect to system ground.
Digital logic input used to enable Spread Spectrum function (Active LOW).
Spread Spectrum function enabled when LOW, disabled when HIGH. This
pin has an internal pull-low resistor.
Spread spectrum clock output.
Digital logic input used to select Spreading Range Refer Modulation
Selection Table. This pin has an internal pull-up resistor.
Power supply for the entire chip (+2.5V or 3.3V)
2.5V LCD Panel EMI Reduction IC
XIN /CLK
Spreading Range ( %)
CP0
CP1
VSS
54MHz
0.92
1.48
0.92
1.48
0.71
1.14
0.62
0.4
3
1
2
4
L2042A
65MHz
0.88
1.37
0.88
1.37
0.58
0.48
0.9
0.3
Description
7
5
8
6
VDD
SR0
ModOUT
SSON#
70MHz
0.87
1.32
0.84
1.33
0.42
0.73
0.25
0.37
(F
Modulation Rate
IN
/40) * 62.49 KHz
2 of 10
L2042A