SY88973BL Datasheet | Micrel Semiconductor

3.3V 3.2Gbps CML Low Power Limiting Post Amplifier with TTL LOS General Description Features The SY88973BL low-power, limiting post amplifier is - Multi-rate up to 3.2Gbps operation designed for use in fiber optic receivers. The device connects - Wide gain-bandwidth product to typical transimpedance amplifiers (TIAs). The linear signal - 38d B differential gain output from TIAs can contain significant amounts of noise - 2GHz 3d B bandwidth and may vary in amplitude over time. The SY88973BL - Low noise 50Ω CML data outputs quantizes these signals and outputs typically 800m VPP - 800m VPP output swing voltage-limited waveforms. - 60ps edge rates The SY88973BL operates from a single +3.3V ±10% power - 5ps RMS typ. random jitter supply, over an industrial temperature range of - 40°C to +85°C. With its wide bandwidth and high gain, signals with - 15ps PP typ. deterministic jitter data rates up to 3.2Gbps and as small as 10m VPP can be - Chatter-free, Loss-of-Signal (LOS) output amplified to drive devices with CML inputs or AC-coupled - No internal pull-up resistor- fully pliant with PECL inputs. SFP MSA The SY88973BL incorporates a loss-of-signal (LOS), open- 4.6d B electrical hysteresis collector TTL output with external 4.75kΩ to 10kΩ pull-up - OC-TTL output resistor to fully ply with SFP MSA. A programmable, loss- Programmable LOS sensitivity using single external of-signal level-set pin (LOSLVL) sets the sensitivity of the resistor input amplitude detection. LOS asserts high if the input - Internal 50Ω data input termination amplitude falls below the threshold sets by LOSLVL and.. de- TTL /EN input allows feedback from LOS asserts low otherwise. LOS can be fed back to the enable (/EN) input to maintain output stability under a loss-of-signal - Wide operating range: condition. /EN de-asserts the true output signal without - Single 3.3V ±10% removing the input signal. Typically, 4.6d B LOS hysteresis is - - 40°C to +85°C industrial...