Msb1222 - Sharp LC-40LE530E Service Manual

LC-32LE530
LC-40LE530
RF_AGC
IF_AGC
ZIF_I
ZIF_Q
Video SAW
Tuner
Audio SAW
24MHz
24MHz
I2CM_SDA
I2CM_SCL
01_Tuner
RF_AGC_CTRL
RF_AGC
IF_AGC
PWR_6V6 I2CM_SCL
I2CM_SDA
AIF
DIF_1
DIF_2
01_Tuner

MSB1222

The MSB1222 contains a superior COFDM demodulator that is Nordig Unified
1.0.3/2.0, D-Book5.0, E-Book, DVB-T compliant. It can be used in all 2K, 4K and 8K
modes with 5, 6, 7 and 8 MHz channels and is capable of receiving all modes of
transmission.
The MSB122 also includes a QAM demodulator which supports 16, 32, 64, 128 and
256 QAM while being compliant to DVB-C, ITU_T J.83 Annex A/C and China GY/T 170-
2001.
The device includes low-power, high performance A/D converters capable of
accepting direct IF at 36/44 MHz. Furthermore, it supports low IF and ZIF signaling.
Features
RF/IF
AGC
11-bit
ADC x 2
VIF
Front End
OSC
& PLL
Figure 20: MSB1210 Block Diagram
02_SAW_driver_filter
RF_AGC
12V
IF_AGC
5V_SYS
I2CM_SCL
I2CM_SDA
AIF
AIF
DIF_1
DIF_2
02_SAW_driver_filter
Figure 21: MSB1210 Application Circuit
DVBT
DEMOD
VIF DBB
DEMOD
8051 DAC
I2C
03_MSB1210
5V_SYS
SIF_CTRL 3V3_SYS
VIF_1
VIF_1 VIF_1
VIF_2
VIF_2 VIF_2
SIF_1
SIF_1 SIF_1
SIF_2
SIF_2 SIF_2
DIF_1
DIF_2
I2CM_SCL
I2CM_SCL
I2CM_SDA
I2CM_SDA
RF_AGC
RF_AGC
IF_AGC
IF_AGC
03_MSB1210
44
MPEG TS Out
MPEG
SSIFO
CVBSOUT
I2CS_SDA
I2CS_SCL
PWR_6V6
RF_AGC_CTRL
5V_SYS
12V
SIF_CTRL
3V3_SYS
TUN_RESET
5V_SYS
TUN_RESET
TS_MCLK
TS_MCLK
TS_MSYNC
TS_MSYNC
TS_MVALD
TS_MVALD
TS_MD[7..0]
TS_MD[7..0]
CVBSO_P
CVBSO_M
SSIFO_P
CVBSO_P
SSIFO_M
CVBSO_M
I2C_SCL_S
I2C_SDA_S
SSIFO_P
SSIFO_M
I2C_SCL_S
I2C_SDA_S