SNL320
16-Bit LCD Controller
VCC
BUO1/VO
BUO2
BUO1/VO
1K
DAC output
Push-Pull output
10. Internal Regulator
The power system of SNL320 can be separated into two groups, one is 3V and
another one is 5V. The power of core logic and SRAM, ROM is comes from 3V power
group. And the power of all I/O, DA/Push-Pull, clock system is comes from 5V power
group.
Considering user’s application, SNL320 built-in a regulator to solve the different
power problem. Please refer to the following connection diagram.
SNL320
SNL320
3V
5V
VDDIO
VDDIO
CVDD
CVDD
VOUT_REG
VOUT_REG
C1
3V power system
5V power system
For 3V power system (2 batteries application), all the power pins should be
connected together.
Ver: 1.2
12
July 22, 2005
SONIX [ SONIX TECHNOLOGY COMPANY ]
