| Integrated Circuits (ICs) | 1 | Obsolete | |
| Linear | 4 | Active | |
| Linear | 4 | Obsolete | |
| Power Management (PMIC) | 2 | Active | The SY88982L is a single 3.3V supply, low power consumption, small form factor driver for telecom/datacom applications using FP/DFB lasers at data rates up to 2.7Gbps. The driver can deliver modulation current up to 90mA, and the high compliance voltage it offers, makes the part suitable for high-current operation (with the laser AC- or DC coupled to it). This device is intended to be used with Micrel's MIC3000/1 Optical Transceiver Management IC, which allows for both modulation and bias current control and monitoring, automatic power control, and temperature compensation. |
| Linear | 2 | Obsolete | |
| Power Management (PMIC) | 2 | Active | The SY88992L is a single supply 3.3V, low power consumption, small-form factor VCSEL driver ideal for use in datacom applications; Ethernet, GbE (Gigabit Ethernet), and FC (Fibre Channel) applications that operate from 100Mbps up to 4.25Gbps. The modulation current is set by applying an external voltage at the IM\_SET pin. The driver features an adjustable peaking option with variable amplitude and duration to improve VCSEL edge response. The driver can deliver modulation current up to 25mA and a peaking current up to 35% of the modulation current. This device is intended to be used with Micrel's MIC3001 Optical Transceiver Management IC, which allows for both modulation and bias current control and monitoring, APC (Automatic Power Control), and temperature compensation. |
| Integrated Circuits (ICs) | 7 | Active | The SY88993AL limiting post amplifier, with its wide bandwidth, is ideal for use as a post amplifier in fiber-optic receivers with data rates up to 3.2Gbps. Signals as small as 4mVPP can be amplified to drive devices with CML inputs or AC-coupled PECL inputs. The SY88993AL generates a chatter-free Loss-of-Signal (LOS) open collector TTL output using an external resistor, as shown Figure 1.
The SY88993AL incorporates a programmable level detect function to identify when the input signal has been lost. This information can be fed back to the /EN input of the device to maintain stability under loss of signal conditions. Using LOS LVL pin the sensitivity of the level detect can be adjusted. The LOS LVL voltage can be set by connecting a resistor divider between VCC and VREF |
| Clock Buffers, Drivers | 4 | Active | The SY89112U is a low-jitter, low-skew, high-speed LVPECL 1:12 differential fanout buffer optimized for precision telecom and enterprise server distribution applications. The input includes a 2:1 MUX for clock switchover application. Unlike other multiplexers, this input includes a unique isolation design to minimize channel-to-channel crosstalk. The SY89112U distributes clock frequencies from DC to >2GHz guaranteed over temperature and voltage. The SY89112U incorporates a synchronous output enable (EN) so that the outputs will only be enabled/disabled when they are already in the LOW state. This reduces the chance of generating "runt" clock pulses.The SY89112U differential input includes Micrel's unique, patent-pending 3-pin input termination architecture that directly interfaces to any differential signal (AC- or DC-coupled) as small as 100mV (200mVpp) without any level shifting or termination resistor networks in the signal path. For AC-coupled input interface, an on-board output reference voltage (VREF-AC) is provided to bias the center-tap (VT) pin. The outputs are 800mV, 100K-compatible LVPECL with fast rise/fall times guaranteed to be less than 220ps.The SY89112U operates from a 2.5V ±5% or 3.3V ±10% supply and is guaranteed over the full industrial temperature range of -40°C to +85°C. The SY89112U is part of Micrel's high-speed, Precision Edge® product line. |
| Integrated Circuits (ICs) | 3 | Active | The SY89113U is a 2.5V low jitter, low skew, 1:12 LVDS fanout buffer optimized for precision telecom and enterprise server distribution applications. The input includes a 2:1 MUX for clock switchover applications. Unlike other multiplexers, this input includes a unique isolation design that minimizes channel-to-channel crosstalk. The SY89113U distributes clock frequencies from DC to >1GHz guaranteed over temperature and voltage. The SY89113U incorporates a synchronous output enable (EN) so that the outputs will only be enabled/disabled when they are already in the LOW state.
CLK0 differential input includes Micrel's unique, 3-pin input termination architecture that directly interfaces to any differential signal (AC- or DC-coupled) as small as 100mV (200mVPP) without any level shifting or termination resistor networks in the signal path.CLK1 differential input includes a new version of unique, Any-Input architecture that directly interfaces with single-ended TTL/CMOS logic (including 3.3V logic), single-ended LVPECL, differential (AC- or DC-coupled) LVDS, HSTL, CML, and LVPECL logic levels as small as 200mV (400mVPP). CLK1 input requires external termination.LVDS output swing 325mV into 100Ω with extremely fast rise/fall time guaranteed to be less than 250ps.The SY89113U operates from a 2.5V±5% supply and is guaranteed over the full industrial temperature range of -40°C to +85°C. The SY89113U is part of Micrel's high-speed, Precision Edge® product line. |
| Clock Buffers, Drivers | 1 | Active | The SY89200U is a 2.5V precision, high-speed, integrated clock divider and LVDS fanout buffer capable of handling clocks up to 1.5GHz. Optimized for communications applications, the three independently controlled output banks are phase matched and can be configured for pass through (÷1), ÷2 or ÷4 divider ratios.The differential input includes Micrel's unique, 3-pin input termination architecture that allows the user to interface to any differential signal path. The low-skew, low-jitter outputs are LVDS-compatible with extremely fast rise/fall times guaranteed to be less than 150ps.The EN (enable) input guarantees that the ÷1, ÷2 and ÷4 outputs will start from the same state without any runt pulse after an asynchronous master rest (MR) is asserted. This is accomplished by enabling the outputs after a four-clock delay to allow the counters to synchronize.The SY89200U is part of Micrel's Precision Edge® product family. |
