30
2.1. IC201
(MSB1220LQFP)
2.1.1. Block Diagram
2.1.2. Pin Description
RF/IF
AGC
11-bit
ADC x 2
VIF
Front End
OSC
& PLL
DVBT
DEMOD
VIF DBB
DEMOD
DAC
8051
I2C
Tuner
MPEG
RF_AGC
IF_AGC
ZIF_I
ZIF_Q
Video SAW
Audio SAW
24MHz
24MHz
I2CM_SDA
I2CM_SCL
MPEG TS Out
SSIFO
CVBSOUT
I2CS_SDA
I2CS_SCL
Power Pins
Pin Name
Pin Type
Function
Pin
AVDD_33
3.3V Power
Analog Power
2, 7, 14,
18, 26
VDDC
1.2V Power
Digital Core Power
32, 47
GND
Ground
Ground
1, 5, 13,
15, 23,
28, 33
2. Detailed ICs Information
, DUNTKF261WE (Main Unit)
Misc. Interface
Pin Name
Pin Type
Function
Pin
EXTRSTN Input
w/
5V-Tolerant
Chip Reset; Low Reset
29
IF_AGC Output
IF
AGC
27
RF_AGC Output
RF
AGC
48
LC-32DH500