SY88913VKG Microchip

Micrel, Inc. SY88913V 5V/3.3V 1.25Gbps HIGH-SPEED SY88913V LIMITING POST AMPLIFIER FEATURES DESCRIPTION 3.3V and 5V power supply options The SY88913V limiting post amplifier with its high gain and wide band width is ideal for use as a post amplifier in Up to 1.5Gbps operation fiber-optic receivers with data rates up to 1.5Gbps. Signals Low power as small as 5mVp-p can be amplified to drive devices with Low noise PECL inputs. The SY88913V generates a chatter-free PECL Chatter-Free /LOS Generation Loss of Signal (/LOS) output. The SY88913V incorporates a programmble level detect PECL /LOS Output function to identify when the input signal has been lost. This TTL /EN Input information can be fed back to the /EN input of the device Differential PECL inputs for data to maintain stability under loss of signal conditions. Using /EN input is TTL with internal 27K pull up LOS pin the sensitivity of the level detect can be adjusted. LVL The LOS voltage can be set by connecting a resistor Single power supply LVL divider between V and V , Figure 2. Figure 3 and 4 CC REF Designed for use with Micrel-Synergy laser diode show the relationship between input level sensitivity and the driver and controller voltage set on LOS . LVL Available in a tiny 10-pin (3mm) MSOP APPLICATIONS 1.25Gbps Gigabit Ethernet 531Mbps and 1062Mbps Fibre Channel 622Mbps SONET Gigabit Interface Converter BLOCK DIAGRAM Rev.: D Amendment: /0 M9999-071310 1 Issue Date: July 2010 hbwhelp micrel.com or (408) 955-1690Micrel, Inc. SY88913V PACKAGE/ORDERING INFORMATION Ordering Information Package Operating Package Lead Part Number Type Range Marking Finish SY88913VKC K10-1 Commercial 913V Sn-Pb (1) SY88913VKCTR K10-1 Commercial 913V Sn-Pb SY88913VKG K10-1 Industrial 913V with Pb-Free Pb-Free bar-line indicator NiPdAu (1) SY88913VKGTR K10-1 Industrial 913V with Pb-Free Pb-Free bar-line indicator NiPdAu 16-Pin MSOP (K10-1) Note: 1. Tape and Reel. PIN NAMES GENERAL DESCRIPTION General Pin Type Function The SY88913V is an integrated limiting amplifier D Data Input Data Input IN i n t e n d e d f o r h i g h - f r e q u e n c y fi b e r - o p t i c a p p l i c a t i o n s . T h e /D Data Input Inverting Data Input IN circuit connects to typical transimpedance amplifiers found LOS Input Loss of Signal Level Set LVL within a fiber-optics link. The linear signal output from a /EN TTL Input Output Enable (active Low) transimpedance ampliefi r can contain signicfi ant amounts of noise, and may vary in amplitude over time. The SY88913V /LOS PECL Output Loss of Signal Indicator (active Low) limiting amplifier quantizes the signal and outputs a voltage- limited waveform. GND Ground Ground The TTL /EN pin allows the user to disable the signal D PECL Output Data Output OUT without removing the input signal. /D PECL Output Inverting Data Output OUT V Power Supply Positive Power Supply CC V Output Reference Voltage Output REF for LOS Level Set (see Fig. 2) M9999-071310 2 hbwhelp micrel.com or (408) 955-1690