STV0974E/TR STMicroelectronics, STV0974E/TR Datasheet - Page 37

• Manufacturer Part Number: STV0974E/TR
• Description: IC DSP IMAGING VGA CMOS 6X6TFBGA
• Manufacturer: STMicroelectronics

Specifications of STV0974E/TR

• Applications: *
• Mounting Type: Surface Mount
• Package / Case: 56-TFBGA
• Operating Temperature (max): 70C
• Operating Temperature Classification: Commercial
• Mounting: Surface Mount
• For Use With: 497-3891 - KIT DEMO W/VS6552
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Other names: 497-3887-2; STV0974E/TR

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Functional description
Viewfinder to live/ Live to viewfinder The sensor field and frame lengths are set according to the
user defined Live/Capture frame rate and data output format. The latency of this transition is
minimal. See
Figure 25: Viewfinder to live or live to viewfinder
Idle to capture Data is grabbed as fast as possible for exposure and white balance convergence.
When the system is stable (or timed-out), the user settings are sent to the sensor. See
Figure 26: Idle to capture timing
Viewfinder to capture Two cases can occur:
1 The system (exposure, white balance) is already stable in viewfinder mode. The user settings
2 The system has not stabilized. STV0974 enters transient mode and, when stable, automatically
are sent to the sensor. The processed frame is sent after a short latency.
goes into Capture mode.
MSCL/MSDA
Sensor mode
Output link
974 mode
SCL/SDA
Input link
MSCL/MSDA
Sensor Mode
STV0974
output data
Figure 25
974 Mode
SCL/SDA
capture
below.
Idle
VF or Live
3 ms max.
Idle
Goto
other streaming
mode
1 frame max.
Capture in progress
Mean ~8 frames
Min. = 1 frame
Max = 20 frames @ maximum frame rate max 2 frames
2 frames max.
Video Active
Video active
Live/VF
Capture
Figure 26
STV0974
.