STV2310D STMicroelectronics, STV2310D Datasheet - Page 15

• Manufacturer Part Number: STV2310D
• Description: Video ICs Digital Video Decodr
• Manufacturer: STMicroelectronics
• Type: High Quality front end videor

Specifications of STV2310D

• Maximum Operating Temperature: + 70 C
• Package / Case: TQFP-64
• Minimum Operating Temperature: 0 C
• Mounting Style: SMD/SMT
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

STV2310
Functional Description
magnitude by ±6 dB in 63 logarithmic steps to the optimal range of the A/D Converter. The video
signal then goes through an external anti-aliasing filter before reaching the A/D Converter. The A/D
Converter dedicated to the CVBS/Y channel has a 10-bit resolution. The A/D Converters dedicated
to the C, R_Cr, G and B_Cb channels have an 8-bit resolution.
Figure 6: Anti-Aliasing FIlter for CVBS Input Signals
150 Ω
VIDEOOUT
ADC
470 Ω
VIDEOCOMM
Two independent CVBS sources can be connected to the STV2310. To process S-Video signals,
the luma signal is connected to one of the CVBS inputs and the chroma signal is connected to the
C input. RGB signals are directly connected to the three separate inputs (R_Cr, G and B_Cb). For
Analog YCrCb signals, the luma signal is connected to one of the CVBS inputs, the Cr signal is
connected to the R_CR input and the Cb signal is connected to the B_CB input.
For S-Video signals, the Y (luminance) signal is connected to the selected CVBS input. The analog
C (chrominance) input includes a bias and fixed gain circuit. The C signal is digitized by an 8-bit A/
D Converter. It is recommended that an external anti-aliasing filter be added before the C input.
Figure 7: Anti-Aliasing FIlter for Chroma Input Signals
C
C_AV
22 nF
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