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PDF DA9057 Data sheet ( Hoja de datos )
| Número de pieza | DA9057 | |
| Descripción | Flexible Energy Management | |
| Fabricantes | Dialog Semiconductor | |
| Logotipo |  |
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Hay una vista previa y un enlace de descarga de DA9057 (archivo pdf) en la parte inferior de esta página. Total 3 Páginas | ||
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Product Brief DA9057
DA9057 Flexible Energy Management with Ultra low
Power CODEC
General Description
The DA9057 is a highly integrated power
management, audio and user interface controller
dedicated for multimedia players, portable
navigation systems and other handheld devices.
PMIC
Four DC-DC converters and ten low dropout
regulators are provided, each fully configurable on
startup to support a wide range of application
processors, associated peripherals and user interface
functions.
Featuring a dual-input switched-mode charger, three-
way USB powerpath management and multiple sleep
modes the device offers an energy-optimised solution
for a wide variety of portable applications.
Interfacing directly to a single Li-lon/Polymer battery
pack the high efficiency switching charger supports
precise current/voltage charging as well as pre
charge and USB modes without processor
interaction. During charging the die temperature is
thermally regulated enabling higher capacity batteries
to be rapidly charged at currents up to 1.3A with
minimum thermal impact to space-constrained PCB’s.
USB suspend mode operation is supported; for
robustness the 500mA current-limited USB power
inputs are internally protected against over-voltage
conditions.
The autonomous power path controller seamlessly
detects and manages energy flow between an AC
adaptor, USB cable and battery whilst maintaining
USB power specification compliance.
The internally-generated system power rail supports
power scenarios such as instant-on with a fully
discharged battery. A reverse-protected backup
battery charger is also integrated into the power path
function.
The power efficiency and flexibility of the switching
input stage is maintained to the generated supplies.
Controlled by a programmable digital power manager
the 14 user- programmable switched/linear regulators
may be configured for a variety of start up
sequences, levels and timings.
Available in VFBGA 7x7mm package
Applications
Personal Media Players
Smart phone
Personal Navigation devices
Consumer Infotainment devices
For optimal processor energy-per-task performance
dynamic voltage scaling is permissible on up to five
supply domains. Dialog’s patented Smart Mirror™
dynamic biasing is implemented on all linear
regulators.
Audio
A high definition audio codec with integrated true-
ground capless headphone driver suitable for a
variety of low power, digital portable audio products.
Featuring a high efficiency class G headphone
amplifier and a common supply voltage of 1.8V to
simplify interfacing to digital processors, the ultra-low
2.5mW power consumption extends music playback
time for battery operated equipment.
The integrated PLL uses a FRACT-N PLL
architecture to support a wide range of input
frequencies and sample rates. Both master and slave
data interface modes are supported.
1 page | ||
| Páginas | Total 3 Páginas | |
| PDF Descargar | [ Datasheet DA9057.PDF ] | |
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