SY84403BL Product Brief Ultra Small 3.3V 4.25Gbps CML Low-Power Limiting Post Amplifier with TTL LOS Description The SY84403BL is the industry’s smallest limiting post drive devices with CML inputs or AC-coupled PECL inputs. amplifier ideal for compact copper and fiber optic module The SY84403BL incorporates a loss-of-signal (LOS) openapplications. The device connects to typical collector TTL output with internal 4.75kΩ pull-up resistor. A transimpedance amplifiers (TIAs). The linear signal output programmable loss-of-signal level set pin (LOSLVL) sets from TIAs can contain significant amounts of noise and the sensitivity of the input amplitude detection. LOS may vary in amplitude over time. The SY84403BL asserts high if the input amplitude falls below the threshold quantizes these signals and outputs typically 800mVPP set by LOSLVL and de-asserts low otherwise. LOS can be voltage-limited waveforms. fed back to the enable bar (/EN) input to maintain output The SY84403BL comes in a tiny 10-pin 2x2 MLF® stability under a loss of signal condition. /EN de-asserts package, which is unparalleled in the industry. It offers the true output signal without removing the input signal. space savings of 55% or more over typical post amps. It All datasheets and support documentation can be found operates from a single +3.3V ±10% power supply, over an on Micrel’s web site at: www.micrel.com. industrial temperature range of –40°C to +85°C. With its wide bandwidth and high gain, signals with data rates up to 4.25Gbps and as small as 10mVPP can be amplified to ___________________________________________________________________________________________________________ Block Diagram MLF is a registered trademark of Amkor Technology. [email protected] or (408) 955-1690 Micrel, Inc. TEL: +1 408.944.0800 FAX: + 1 408.474.1000 http://www.micrel.com Features Benefits ® Available in an ultra small 10-pin (2mm x 2mm) MLF package Saves over 55% on board space 10mVPP input sensitivity Wide input range Low noise 50Ω CML data outputs – 800mVPP differential output swing – 60ps edge rates – 1psRMS typ. random jitter – 10psPP typ. deterministic jitter Drive high frequency signals Chatter-free Loss-of-Signal (LOS) output – 3.5dB electrical hysteresis – OC-TTL output with internal 4.75kΩ pull-up resistor – Programmable LOS sensitivity using single external resistor Flexible implementation and ideal for multiple applications Internal 50Ω data input termination Eliminates stubs, simplifies design and improves jitter TTL /EN input Allows feedback to LOS to perform squelching function Single 3.3V ±10% power supply Low power consumption Part of Micrel’s new ultra small FOM IC family. For Laser Diode Drivers, see SY84202L or SY84402L Efficient and space saving solutions for next generation designs Applications Markets • 1.062Gbps, 2.125Gbps and 4.25Gbps Fibre Channel • Copper interconnect • Cable driver • Datacom and telecom • SFF and SFP transceivers • Storage area network (SAN) • High-gain line driver and line receiver Corporate Sales Offices Location Address Telephone Fax Corporate HQ 2180 Fortune Dr. Western USA 2180 Fortune Dr. San Jose, CA 95131 USA (408) 944-0800 (408) 474-1000 San Jose, CA 95131 USA (408) 944-0800 (408) 474-1000 Central USA Eastern USA 2425 N. Central Expressway, Suite 351 Richardson, TX 57080 USA (972) 393-2533 (408) 474-1210 93 Branch St. Medford, NJ 08055 USA (609) 654-0078 (609) 654-0989 Latin America 2425 N. Central Expressway, Suite 351 Richardson, TX 57080 USA (972) 393-2533 (408) 474-1210 China Rm 601, Bldg., Int’l Chamber of Commerce Mansion, Fuhua Rd., Futian District Shenzhen, P.R. China +86-755-8302-7618 +86-755-8302-7637 Japan Queen’s Tower A 14F, 2-3-1, Minato Mirai, NishiKu, Yokohama-Shi Kanagawa 220-6014, Japan +81-45-224-6616 +81-45-224-6716 Korea 4F Manzo 2 Bldg, 198-47, Gungnae-Dong, Bundang-Ku Seongnam-City, Kyungki-do, 463-470, Korea 82 (2) 538-2380 82 (2) 538-2381 Singapore/India 750A Beach Rd., #07-324 The Plaza Singapore 199591 +65-6291-1318 +65-6291-1332 Taiwan 4F, No. 43 Lane 188, Rueiguang Rd., Neihu District Taipei, Taiwan, R.O.C. +866 (2) 8751-0600 +866 (2) 8751-0746 France/Southern Europe Les Laurentides Immeuble Ontario, 3 avenue du Quebec 91140 Villebon sur Yvette, France +33 (0) 1.6092.4190 +33 (0) 1.6092.4189 UK/EMEA 1st Floor, 3 Lockside Place, Mill Lane, Newbury, Berks United Kingdom RG14 5QS +44 (1635) 524455` +44 (1635) 524466 Sweden/Nordic Lundagatan 11 6tr SE-171 63 Solna Sweden +46 (8) 470-5950 +46 (8) 470-5950 Micrel, Inc. TEL: +1 408.944.0800 FAX: + 1 408.474.1000 http://www.micrel.com M9999-0611090