SI
SI
discoversearch

We've detected that you're using an ad content blocking browser plug-in or feature. Ads provide a critical source of revenue to the continued operation of Silicon Investor.  We ask that you disable ad blocking while on Silicon Investor in the best interests of our community.  If you are not using an ad blocker but are still receiving this message, make sure your browser's tracking protection is set to the 'standard' level.
Technology Stocks : Qualcomm Incorporated (QCOM) -- Ignore unavailable to you. Want to Upgrade?


To: SKIP PAUL who wrote (22058)1/27/1999 10:10:00 PM
From: Ruffian  Respond to of 152472
 
This Is Interesting>

Electronica moves on packages and W-CDMA
Microwave Engineering Europe

At the first Electronica exhibition to be staged in
Munich's brand new conference and exhibition
centre, the test, device and package needs for
wireless communications featured strongly. There
were test products aimed at the next generation
of cellular phones from companies such as
Rohde and Schwarz and Anritsu and new RF
transceiver chips highlighted by Gran-Jansen of Norway and [ Sony ] .

Sony's Duetto GSM dual-band RF chipset includes a transceiver IC that
covers 900/1800 or 900/1900MHz for dual-band cellular handsets. The
company is also offering a 34.5dBm (at 3.6V) power amplifier and SP4T
antenna switch to complete the set of chips, but 3 external VCOs and one
IF SAW filter will also be needed.

The outline data available in Munich claimed that the sum loop modulator in
the transmit chain provides a sufficiently pure transmit output to ensure that
simple harmonic filters can provide good enough performance after the
power amplifiers. An otherwise conventional architecture is shown with a
super-heterodyne receiver that uses a 440MHz intermediate frequency. A
UMTS part is on the roadmap too.

Gran Jansen is a less familiar name in semiconductors but this Oslo based
Norwegian company, is offering transceiver chips for frequency hopping
spread spectrum transmission of data at 433MHz and has now added a
complete transceiver board to help with winning design slots for the chip, a
module which it claims type approval for.

The transceiver is specified for operation between 300 and 500MHz,
operating from a single 2.7-3.3V supply and uses a direct conversion design
for the receiver. In receive mode, the part requires 16mA, rising to 25mA in
the transmit mode, with 5mW output power available, and falling to a power
down current of 1 micro A. Transmission data rate is coding dependent but
a typical figure of 9600bits/s is quoted.

At the heart of the transmitter are the PLL, synthesizer and a power
amplifier. The VCO is on board but does require an external resonator and
varicap, joined off chip by the the loop filter for the synthesizer.

A low noise amplifier kicks off the receiver chain, feeding into the twin
quadrature mixers. At baseband, passive RC filters and gyrator filters follow
variable gain amplifiers before the signals are limited and demodulated to
produce a digital data output.

Power consumption is a target specification for reduction and engineering
samples for a part with the receiver current halved are expected this month

Also in Munich with the introduction of a new module was TDK which is
offering a dual band transceiver module for GSM900/1800 cellular
handsets. The 45x35x6mm3 module is based around Hitachi's BRIGHT 11
dual-band transceiver chip and supports class 4, 2W operation at 900MHz
and class 1, 1W operation at 1800MHz.

Frequency spectrum

The electro-mechanical side of the electronics business also wanted to show
that it could produce new products for the event that pushed up the
frequency spectrum. Teledyne's 12GHz SPDT switch was too recent a
development to have complete data but, based on a test sample of 20
relays, Richard Sun, responsible for development of the new part in
California, claimed that the unit could deliver better than 17dB return loss up
to 10GHz with 0.2dB insertion loss up to 3GHz and better than 40dB
isolation. By 12GHz, the insertion loss on the preliminary data has reached
0.6dB.

Anritsu, [ Hewlett Packard ] and Rohde & Schwarz are all showing
products aimed at the design labs for third generation cellular systems using
wideband CDMA (W-CDMA). HP started the roll out on its products at
the European Microwave Week, also covered on page 14 of this issue, but
Rohde and Schwarz made full use of the home-ground location for showing
new boxes at Electronica. These included two spectrum analyzers from the
company's alliance with Advantest of Japan with IQ modulation and
code-domain power analysis, a system package for generating W-CDMA
signals. The company is claiming that it provides a capability to measure
adjacent channel power ratios for the new systems of 75dB and cites ACPR
as a key measurement parameter for the W-CDMA standard which has yet
to be fully defined.

Package improvements, or replacement in a conventional sense were also
on show. [ National Semiconductor ] has been enthusiastic about flip-chip
mounting of circuits and has just been chosen to lead a government/industrial
project to develop better bonding materials for flip-chip mounting with major
funding from the US National Institute of Standards and Technology
(NIST).

As a practical example of wafer level packaging, National showed a dual
op-amp measuring 1.45mm square and with 0.9mm height in the so-called
micro-SMD surface mount package, see figure 1. It has solder bumps along
each edge on the active side of the circuit, making eight in total.

Fujitsu is also pressing ahead with new packaging technologies including the
bump chip carrier (BCC) for RF circuits. Having started with 0.65mm pitch,
16 pin versions which were compatible with standard SSOP packages, the
company has moved down to a 0.5mm pitch, and with that pitch size comes
32 and 48 pin versions which are now available as mechanical samples.

The BCC package size comes in 2mm larger than the basic die size. Test
data from Fujitsu which compares the RF performance of the BCC package
against the SSOP show the insertion loss 3dB point at 5.0GHz for the
SSOP pushed up to 6GHz for the BCC.

Next stage is a 64pin package, currently under development to handle large
circuits.

The new Munich conference centre, within the complex used for Electronica
98, will be home to the 2nd European Microwave Week from 4 - 8
October next year.

R&S Tel: +49 89 4129 1765 Fujitsu National Semiconductor Tel: +49
8141 35 1 443 solveig.loesch@nsc.com Gran Jansen Tel: +47 22 12 42 00
granjan@online.no Sony Tel: +44 1256 38 8881
mobilecomms@sse.eu.sony.co.jp

(Copyright 1999)



To: SKIP PAUL who wrote (22058)1/27/1999 10:14:00 PM
From: Ruffian  Respond to of 152472
 
Ericsson Divests Lab>
NEWS DIGEST: Ericsson divests lab
Electronics Times

Symbian is to take over Ericsson's Swedish mobile applications lab for an
undisclosed sum. The deal is part of Ericsson's commitment, as a Symbian
shareholder, to transfer appropriate technologies and staff for the
development of the Epoc operating system.

(Copyright 1999)

____



To: SKIP PAUL who wrote (22058)1/27/1999 10:18:00 PM
From: Ruffian  Respond to of 152472
 
Mot, Lu, Nokia >
Digital handsets boost Motorola
Electronics Times

[ Motorola ] has bought the assets of [ Lucent
Technologies ] ' wireless handset R&D facility in
Piscataway, New Jersey, for an undisclosed
sum. The 300 engineers at the facility will now
become Motorola employees.

The move follows the failure of Lucent's joint venture in wireless handsets
with Philips Electronics. That partnership ended last October, and Lucent
took a $100m charge at the time in selling its consumer phone equipment
business.

Analysts say the move will help Motorola develop digital wireless handsets,
a technology in which the team at Lucent was notably strong.

* Nokia, Motorola's arch rival in the mobile handsets business, is investing
$200m at its plant in Bochum, Germany, to increase capacity for cellular
phones as worldwide demand continues to grow.

Production at the plant, which employs 1500, will more than double as more
assembly lines come on-stream in the next few months.

(Copyright 1999)



To: SKIP PAUL who wrote (22058)1/27/1999 10:22:00 PM
From: Ruffian  Read Replies (2) | Respond to of 152472
 
Mobile Phone Stats>
Mobile phone subscriptions surge in 1998
Electronics Times

by Sandy Morrison

Mobile phone operators are reporting record-breaking increases in UK
subscribers, thanks largely to a Christmas boom in purchases of prepayment
phones.

Both Vodafone and Orange reported a growth of more than 80% in their
customer base during 1998, with approximately half of that growth
attributable to the last quarter.

Vodafone connected 933,000 mobile phone customers in the last quarter of
1998, including 755,000 on its Pay as You Talk service and 500,000 in
December alone.

Orange now has more than two million subscribers, 960,000 of them gained
during 1998 and 512,000 of those during the last quarter. Orange's Just
Talk service is used by 22.5% of its subscriber base but 64% of those
connected during the last quarter.

Shares in both companies rose sharply following the announcement of these
figures, as did shares in BT and Cable & Wireless, both of which have
interests in mobile phone networks.

But Vodafone has been ordered by the Independent Television Commission
to withdraw its advertising for Pay as You Talk. The Commission
considered the advertisements misleading as they fail to mention the need to
keep up payments to retain network access.

Keith Westcott, MD of Ericsson Mobile Phones UK, admits to being
surprised by the extent of the surge in demand at the end of 1998. He
expects rapid growth to continue because "once a market reaches 20%
penetration, you have an acceleration in the use of mobile phones. This has
been clearly seen already in the Scandinavian market."

He feels that prepayment tariffs have created a different market segment as
phones can be readily given to children or the elderly for emergency use.
These packages mostly use basic models, but Westcott believes "a younger
audience will want more features", and that many will upgrade to more
expensive phones after 12 months or so.

(Copyright 1999)



To: SKIP PAUL who wrote (22058)1/27/1999 10:32:00 PM
From: Ruffian  Respond to of 152472
 
From Yahoo Ericy Thread>
t - nothing new about my statement that Ericsson might be
by: Kool_Operator
14202 of 14202
interested in Q or part of Q's business. This rumor has been out there for a few weeks. All I am doing, if the rumor is true, is to tie the layoffs with
some kind of an agreement with Q. For any company to reduce their work force by over 10% is significant. This involves much more than out
sourcing part of their manufacturing business. Something significant will be annouced tomorrow that has something to do with the layoffs and if it
concerns Q, it may be an agreeement over 3G or possible purchase of part of Q's business. Or it may have nothing to do with Q. We will find out
tomorrow and I hope it will resolve the battle over 3G.

Kool