SNLS697 Data sheet

SNLS697A April 2021 – February 2023 TDES954

PRODUCTION DATA

Package Options

Mechanical Data (Package|Pins)

RGZ|48
- MPQF123F

Thermal pad, mechanical data (Package|Pins)

RGZ|48
- QFND014T

Orderable Information

7.4.2 RAW Mode

When operating in Raw V³Link input mode, the TDES954 receives RAW10 or RAW12 data from a serializer. The data is translated into a RAW10 or RAW12 CSI-2 video stream for forwarding to the CSI-2 transmit port. For each input port, the CSI-2 packet header VC-ID and Data Type are programmable.

DVP RAW8 data format is also supported in serializer RAW10 transmit mode with 8/10 data input bits (MSB or LSB) connected to the serializer DVP source. DVP format serializer inputs must have discrete sync signals. When paired with DVP Mode serializers, the TDES954 utilizes the HSYNC and VSYNC inputs to construct the MIPI CSI-2 Tx data packets. Ensure the Frame Valid to Line Valid setup time is configured appropriately for DVP input system use cases as a minimum setup timing is required as per Table 7-10.

In RAW mode the TDES954 deserializer each Rx Port can support up to:

12 bits of DATA + 2 SYNC bits for an input PCLK range of 37.5 MHz to 100 MHz in the 12-bit, high frequency mode. Line rate = f_PCLK × (2/3) × 28; for example, f_PCLK = 100 MHz, line rate = (100 MHz) × (2/3) × 28 = 1.87 Gbps. Note: No HS/VS restrictions (raw).
10 bits of DATA + 2 SYNC bits for an input PCLK range of 50 MHz to 100 MHz in the 10-bit mode. Line rate = f_PCLK/2 × 28; for example, f_PCLK = 100 MHz, line rate = (100 MHz/2) × 28 = 1.40 Gbps. Note: HS/VS is restricted to no more than one transition per 10 PCLK cycles.
12 bits of DATA + 2 bits SYNC for an input PCLK range of 25 MHz to 50 MHz in the 12-bit low frequency mode. Note: No HS/VS restrictions (raw).

When operating with DVP serializers, the TDES954 deserializer also supports DVP formats such as YUV-422 which have the same pixel packing as RAW8, RAW10 or RAW12. For example; there are 3 YUV CSI-2 data types that have the same pixel packing as RAW10: YUV420 10 bit, YUV420 10 bit Chroma shifted or YUV422 10bit. These formats can be used as well as 8 bit and 12 bit YUV formats which adhere to the same structure as RAW8 and RAW12 respectively.