Qualcomm and Teleepoch
Enter Into a 3G CDMA Subscriber Unit License Agreement, October
6, 2007
MTN chooses Cambridge Broadband
Networks for multi-service wireless network in Rwanda, October 6,
2007
Brazilian government to
publish 3G bidding rules soon, October 6, 2007
KTF 3G service suffers
from technical problems, October 6, 2007
Argentina’s Personal
lunches 3G service in Rosario, October 6, 2007
Russia has it's first 3G
network, October 6, 2007
AT&T could drop Alcatel-Lucent
as 3G mobile network supplier, October 6, 2007
Enea Extends License Agreement
with ZTE for 3G Handsets, October 2, 2007
LG to unveil premium handsets
in Brazil, October 2, 2007
KTF 3G subscribers doubled
in less than 3 months, October 2, 2007
3G policy in India will
be non-uniform, October 2, 2007
- previous news
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Atmel introduces power management standard product for 3G
January 7, 2004
Atmel Corporation announced the release of its AT73C203 Power Management
standard product for 3G wireless platforms. Manufactured on Atmel's low-cost
mainstream CMOS process, the AT73C203 has been developed to provide an
integrated solution for portable and handheld applications based on microprocessors
that require "smart" power management functions, such as 3G phones, PDAs,
Palmtop computers, point-of-sales terminals, 3G modems and others.
The AT73C203 features the complete set of power supplies and interfacing
systems that is used in a device based on Intel XScale processors. Three
sets of step-down switching converters supply application cores, memories
and analog blocks each with up to 1.2A. Output voltage ranges are 0.87
to 1.2V, 1.0 to 1.80V and 1.70 to 2.60V with dynamic adjustment in order
to optimize current consumption inside the application core. An additional
520 mA step-up/down switching converter with output voltage range 3.0
to 3.4V supplies RF components and peripherals allowing the system to
benefit from very low Li-Ion battery voltage, down to 2.8V.
The device includes an integrated dual battery charger designed to supply
both internal and external batteries, allowing pre-charge, fast charge
and top-off charge with programmable current and voltage thresholds. Dual
battery operation is extremely important because it allows customer to
double operating time for a high current consumption device, especially
a PDA.
Power from upstream USB can also be used to recharge batteries; the AT73C203
manages the negotiation with the host processor for charge current selection.
A real time charge inhibit option allows charge suspension during radio
transmit periods. In addition, the AT73C203 integrates an 8-bit ADC with
embedded temperature and voltage supervision.
The AT73C203 also provides the full voltage supply range (1.8 or 3.0V),
the level shifters for a SIM (Subscriber Identity Module) interface compatible
with ETSI standard GSM11.12 & 11.18 and the ISO7816 UART compatible interface
macro.
"We are enthusiastic about being one of the first single-chip suppliers
for 3G power management applications," commented Michele Casetta, Marketing
Manager for Atmel's Power Management Product Line. "This highlights Atmel's
power management strategy in targeting markets where power consumption,
flexibility and portability are key issues for making successful products.
The AT73C203 enables Atmel to become a market leader in the smart phone
and PDA power supply market."
"By reusing the IP blocks developed for the mobile phone market
with AT73C202 and the datacom market with AT73C203, we want to make Atmel's
power management product line prominent in a wide range of handheld products
such as digital cameras, MP3 readers, Bluetooth modules and GPS handheld
devices."
Atmel offers the AT73C203 in a 9 x 9 mm, 100-ball ultra-thin BGA in order
to satisfy portable device manufacturers' minimum space requirements.
It is available now mounted on a reference design board or as engineering
samples.
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3G Motorola A920
