STSMIA832

Pin configuration

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2.1

Pin descriptions for reference:

(D+, D-, STRB+, STRB-)

Differential subLVDS data and strobe inputs to the receiver from the camera sensor

interface. The signals operate at 150mV typical differential voltage levels and a common

mode voltage of 900mV. The operating data rate is 650Mbps maximum. Depending on the

CLASS_SEL pin selection mode, Data/Clock signaling or Data/Strobe signaling modes are

activated.

D1-D8, CLK

STSMIA832 output data and clock lines. Parallel 8 bits of CMOS/LVTTL data is output at a

maximum data rate of 82Mbps per line. Output LVTTL clock is transmitted in parallel with

the data at 82MHz Max.

SYNC-SEL

The Horizontal Sync and Vertical Sync signals are extracted from the data stream before

transmitting data on the parallel output D1-D8 if the device is working in ENABLED SYNC

GND) the sync codes are not extracted from the data stream and the embedded Sync

codes are transmitted along with the data on the parallel output. This allows for two modes

of functioning, formatted and unformatted transmission of data on the data lines based on

the selection by the Baseband processor. The main function table lists the functions for

various combinations of SYNC_SEL pin and EN pin.

CLASS-SEL

The device embeds all functions forecast inside the SMIA Standard. STRB+ and STRB-

signals are considered STROBE Signals when the device is working in HIGH CLASS mode

the STRB+ and STRB- inputs change their strobe functionality to CLOCK in order to be

compliant with SMIA CLASS 0. In Class 0 mode of operation, data is read on the rising edge

only. This allows for two modes of functioning, Clocked and Strobed transmission according

to different applications and provides high flexibility to configure the final application in

different Baseband processors.

H-SYNC, V-SYNC

In the ENABLED SYNC mode, the parallel data on D1-D8 is accompanied by the Horizontal

and Vertical Sync signals on the H-SYNC and V-SYNC pins and together they are used to

reconstruct the image frame.

The H-SYNC and V-SYNC are generated by extracting the SMIA 32-bit Synchronization

codes (SOF, EOF, SOL, EOL) on the serial input data stream.

EN

Enable pin is to enable the Power-Down Mode. This mode enables the shutting down of the

device when the interface is not in use. The maximum current consumption can be reduced

to 10 µA. This provision makes this device suitable for portable applications like Mobile

phones or Portable Battery Equipment.