STV-DCA/CIF-E01 STMICROELECTRONICS [STMicroelectronics], STV-DCA/CIF-E01 Datasheet - Page 34

• Manufacturer Part Number: STV-DCA/CIF-E01
• Description: DUAL-MODE DIGITAL CAMERA CHIPSET
• Manufacturer: STMICROELECTRONICS [STMicroelectronics]

Detailed chipset specifications
6.5.2
Note: 1 See
34/63
2 From limited evaluation, typical self-refresh current figures of certain SDRAM chips are well below
3 Sensor suspend mode current <100 A (needs SUSPEND pin asserted with VV6500), see
4 If the appropriate hardware to assert the sensor SUSPEND pin is not fitted, an additional current
5 Option included in reference design to save current consumption, which can increase battery life
consumption in Standby/PC Suspend mode of Approx. 50 A can be expected with VV6500.
Using VV6410/6411/6500 (sensor operates at @ 3.3V DC)
manufacturers’ maximum specification, e.g. 100-250 A . See
and
and increase chances of meeting USB suspend mode compliance requirements.
’Snapshot’/Continuous/
Self timer mode
(while un-tethered)
’Snapshot’/Continuous/
Self timer mode
(while tethered to PC)
While playing back audio
sounds through speaker
Standby Mode (when NOT
connected to USB):
Sensor SUSPEND pin
asserted (see
PC Suspend mode
(when connected to USB):
Sensor SUSPEND pin
asserted (see
Standby Mode (when NOT
connected to USB): sensor
powered off using FET
(see
PC Suspend mode (when
connected to USB): sensor
powered off using FET
(see
Table
Table 10
Note 5
Note 5
16.
Mode
Table 18 : Current consumption, complete STV0680B+VV6410/6411/6500 camera
)
)
fin
Note 4
Note 4
Section
)
)
6.2.
60mA
60mA
90mA
Approx. 220µA + SDRAM
self-refresh current
(see
suspend mode current
(see
Approx. 50µA + SDRAM
self-refresh current
(see
suspend mode current
(see
Approx. 220µA + SDRAM
self-refresh current
(see
Approx. 100µA + SDRAM
self-refresh current
(see
Note 2
Note 3
Note 2
Note 3
Note 2
Note 2
Typical
) + sensor
)
) + sensor
)
)
)
Version 3.4
Assuming appropriate hardware included, power is sourced
from PC while USB connected.
Assuming 8
AN1310
Total current in this mode equals:
STV0680B Standby current consumption (see
+ SDRAM self-refresh current (see
+ peripheral circuitry (approx. 50 A).
+ Sensor suspend mode current (See
Total current in this mode equals:
STV0680B Standby current consumption (see
+SDRAM self-refresh current (see
+ peripheral circuitry (approx. 50 A).
+ 200 A, based on 1.5k pull-up in camera (see
and 15k pull-down in PC.
+ Sensor suspend mode current (See
Total current in this mode equals:
STV0680B Standby current consumption (see
+ SDRAM self-refresh current (see
+ peripheral circuitry (approx. 50 A).
Total current in this mode equals:
STV0680B Standby current consumption (see
+SDRAM self-refresh current (see
+ peripheral circuitry (approx. 50 A).
speaker as explained in application note
Section 4
STV0680B + VV6444/6410/6500
Comments
for recommendations.
Note 2
Note 2
Note 2
Note 2
Note 3
Note 3
)
)
)
)
)
)
Note 1
Note 1
Note 1
Note 1
Chapter 6
Table 15
)
)
)
)
)