Product category:
Communications ICs (Wireless)
News Release from: Zarlink Semiconductor | Subject: ZL10355
Edited by the Electronicstalk Editorial
Team on 30 August 2005
DTV chip cuts power and size for
handheld designs
Zarlink Semiconductor has launched a new terrestrial demodulator for PC-TV, portable and handheld digital television equipment designs.
Zarlink Semiconductor has launched a new terrestrial demodulator for PC-TV, portable and handheld digital television equipment designs The ZL10355 device offers the industry's smallest package, lowest power consumption and lowest software overhead, coupled with an extended temperature range uniquely suited for mobile DTV
This article was originally published on Electronicstalk on 7 Feb 2001 at 8.00am (UK)
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The demodulator fully complies with the stringent NorDig Unified 1.0.2 standard.
Although most people receive TV signals over cable or satellite connections, as consumers begin watching TV on personal computers, in cars and even on cellphones, the terrestrial or "line of sight" transmission market is growing.
According to company research, Zarlink is the number one provider of terrestrial DTV demodulators and is well positioned to meet the needs of portable DTV equipment designers.
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The ZL10355 chip is pin and feature compatible with the recently introduced ZL10353 device, offers the industry's lowest NorDig Unified operational and standby power, as well as the fastest DVB-T (digital video broadcast-terrestrial) "blind-scan and auto re-acquisition" capability.
Package size measures just 7 x 7mm - half the printed circuit board area of the industry standard.
The ZL10355 includes an integrated digital IF (intermediate frequency) filter that eliminates the need for switched bandwidth SAW filters in the tuner design, allowing compliant reception of 6, 7 or 8MHz channels with one filter.
The chip also contains an RF signal strength indicator, allowing download and reading of the TV signal strength directly at the receiver box.
The ZL10355 chip offers an extended operational temperature range of -40 to +85C, delivering higher reliability in rugged consumer environments.
The device delivers the industry's lowest power consumption at less than 300mW in a typical application or 270mW in a lower power mode.
It features a "sleep" pin that reduces the chip's power requirement 1000-fold when a device is not in use.
Zarlink's demodulators feature a very high-speed "blind scan and auto re-acquisition" function, built on a hardware-based state machine that automatically scans the entire broadcast band much faster than software-based channel-scanning algorithms.
As the reception on PC, portable and handheld TV devices routinely fluctuates as the user moves around, high-speed scanning and channel re-acquisition is a highly valued function.
Zarlink's new demodulator is available now.
Zarlink supports the product with a comprehensive evaluation system that includes TNIM (terrestrial network interface module) reference designs, evaluation software, PC interface and device drivers.
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