8
2. Audio signal flow (see below figure)
SIF1, SIF2 of TUNER1 and TUNER2 send straight to MSP4440G demodulate of MTS. The signal
and the sound of AV1, AV2, VGA and YPbPr1, YPbPr2(via PIV331 to select signal),send to
MSP4440G select output. CL/WS of HDMI-1, HDMI-2 and digital MEPG_CL/WS demodulated from
PWM2000 via 3257 select after, it send to MSP4440G, while the data D1 and D2 of HDMI and
PWM2000 send straight to MSP4440G. IIS and the audio signal of each channel are demodulated
in MSP4440G then sent to TPA3008 amplify and output. The audio signal of TS stream may be
demodulated and converted into SPDIF to output in PWM2000 at the same time.
Audio out
Tuner 2
Tuner 1
AV 1
AV 2
YPBPR 1
VGA
YPBPR 2
MSP4440G
PIV331
PWM2000
3257
SiL9011
SIF1
SIF2
IIS D1
Mepg cl/ws
Hdmi cl/ws
IIS D2
HDMI-2
HDMI-1
