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| 型號(hào)： | P95020ZLLGI |
| 廠(chǎng)商： | INTEGRATED DEVICE TECHNOLOGY INC |
| 元件分類(lèi)： | 電源管理 |
| 英文描述： | 2-CHANNEL POWER SUPPLY MANAGEMENT CKT, PBGA124 |
| 封裝： | LLGA-124 |
| 文件頁(yè)數(shù)： | 1/137頁(yè) |
| 文件大小： | 3533K |
| 代理商： | P95020ZLLGI |
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Audio, Power Management
P95020
and Control
Preliminary Datasheet
Revision 0.7.10
1
2010 Integrated Device Technology, Inc.
OVERVIEW
The P95020 is designed to provide maximum flexibility to
system designers by providing full customization and
programmability.
It is the first of a new generation of
standardized
application-specific
controllers
that
incorporates a general purpose microcontroller, a high
fidelity audio CODEC including headphone outputs and a
2.5W Class D audio amplifier, full power management
functionality, a touch screen controller and a real time
clock all of which are required by portable consumer
devices such as cellular phone handsets, portable gaming
devices,
digital media
players,
portable
navigational
devices, etc.
The general purpose microcontroller controls the device
power-on/power-off sequencing and can also be used for
general system housekeeping.
The P95020 includes two IC Interfaces, a master for
communicating with an external EEPROM and a slave for
communicating with the host.
The high fidelity audio CODEC along with headphone
outputs and the 2.5 watt Class D audio speaker amplifier
comprise a total audio solution for portable applications.
The switch-mode
EnergyPath Battery Charger operates
with its own high efficiency buck regulator to transmit the
2.5 watts available from a USB port to the system with
minimal wasted power. It can also handle up to 2A from a
wall charger.
Its power management features along with switch-mode
converters and LDOs should be sufficient to provide power
for even the most complex hand-held devices.
The integrated touch screen controller allows adding touch
screen capability to devices at significantly reduced cost.
It also includes IDTs high quality, low power real time
clock.
APPLICATIONS
Smart Phones
Portable Gaming Device
Digital Media Players
Portable Navigational Devices
KEY FEATURES
Quick Turn Customization
Embedded Microcontroller
Master Controller during Power Up & Power-Down
Initialization and power sequencing
Dynamic Power Management via IC bus interface
Up to 10 General Purpose I/Os available
General house keeping for P95020 and other devices
Audio Features
4 Channel CODEC with 24-bit resolution and internal
registers for status and control
Integrated 2.5 Watt Mono Class D Amplifier
with Filterless Operation.
Stereo cap-less headphone driver
Differential Analog Audio Line Inputs
Dual Mode Microphone Inputs (Analog or DMIC)
Battery Charging Circuit
Autonomous Li-Ion/Li-Poly charger up to 1.5A
Automatic Load Prioritization
Advanced Battery Safety features
High efficiency switch-
mode *EnergyPath controller
USB or Wall-mounted Charging
Programmable Current Limit
Automatic end-of-charge control
Internal 180 m
ideal diode with external
ideal diode controller
Power Management Features
All Converters:
Power up/down sequence field reprogrammable with
external EEPROM
Dynamic voltage scaling
Host or I2C output enable / disable
Buck DC-DC PWM converters with PFM mode
Two at 500mA, 0.75V to 3.7V
One at 1000mA, 0.75V to 3.7V
Boost DC-DC converters
One at 1.5 A peak on inductor, 4.05V to 5.0V
One LED supply with 2 W total output power
Two programmable current sinks, @ 25mA each
Voltage limited to rating of external FET & diode
Linear Regulators
Three LDOs at 150mA, 0.75V to 3.7V
Four LDOs at 50mA, 0.7V to 3.7V
One always-on LDO at 10mA, 3.3 or 3.0V
ADC and Touch Screen Controller
4-wire touch screen interface
One direct battery measurement channel
One direct VSYS measurement channel
One direct charge current measurement channel
On-Chip temperature measurement
Four auxiliary analog input channels (shared with GPIO
pins)
Touch pressure measurement
Sample rate: 62.5k SPS
12 bit resolution, DNL: -1~+2 LSB, INL: +-2
On-chip 2.5V reference
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