MAX3890

19-1498; Rev 0; 6/99 KIT ATION EVALU E L B AVAILA +3.3V, 2.5Gbps, SDH/SONET 16:1 Serializer with Clock Synthesis and LVDS Inputs General Description The MAX3890 serializer is ideal for converting 16-bitwide, 155Mbps parallel data to 2.5Gbps serial data in ATM and SDH/SONET applications. Operating from a single +3.3V supply, this device accepts low-voltage differential-signal (LVDS) clock and data inputs for interfacing with high-speed digital circuitry, and delivers PECL serial data and clock outputs. A fully integrated PLL synthesizes an internal 2.5GHz serial clock from a 155.52MHz, 77.76MHz, 51.84MHz, or 38.88MHz reference clock. A loopback data output is provided to facilitate system diagnostic testing. The MAX3890 is available in the extended temperature range (-40°C to +85°C) in a 64-pin TQFP exposedpaddle (EP) package. o Single +3.3V Supply o 495mW Power Consumption o Exceeds ANSI, ITU, and Bellcore Specifications o 155Mbps (16-bit wide) Parallel to 2.5Gbps Serial Conversion o Clock Synthesis for 2.5Gbps o Multiple Clock Reference Frequencies (155.52MHz, 77.76MHz, 51.84MHz, 38.88MHz) o LVDS Parallel Clock and Data Inputs o Additional High-Speed Output for System Loopback Testing Features MAX3890 Applications 2.5Gbps SDH/SONET Transmission Systems 2.5Gbps ATM/SONET Access Nodes Add/Drop Multiplexers Digital Cross-Connects ATM Backplanes PART Ordering Information TEMP. RANGE PIN-PACKAGE 64 TQFP-EP* MAX3890ECB -40°C to +85°C *EP = Exposed Paddle Pin Configuration a...