M21324 SD, HD, 3G Cable Equalizer The M21324 is a high-speed, low-power, adaptive co-axial cable equalizers designed to increase the maximum low-jitter transmission distance of serial digital interface (SDI) video signals and DVB-ASI across commonly used bandwidth-limiting 75 coaxial cable. This device automatically optimizes the transfer function based on the bit rate and cable length to minimize the inter-symbol interference (ISI) jitter caused by the cable and to remove the DC offset components introduced with the pathological test pattern and AC coupling in systems. The M21324 is designed to support SD, HD, and 3G data rates from 143 Mbps to 2970 Mbps. The low-noise, high-gain equalizer allows for low jitter 3G transmissions up to 100m (Belden 1694A) and HD transmissions up to a length of 200m (Belden 1694A) and 120m (Belden 8281). For SD data rates, cable lengths up to 400m (Belden 1694A) and 300m (Belden 8281) are supported. The M21324 shares the same footprint as the GS2974A, GS1574/GS1574A or GS9074A, except that the M21324 has a shared Signal Detect/Mute function pin, while the GS2974A, GS1574/1574A and GS9074A have separate CD and mute pins. Applications Features SDI Routers Adaptive cable equalization SDI Switches Optimized data rate from 143 Mbps to 2.97 Gbps SDI Distribution Amplifiers Typical equalized length of Belden 1694A cable: 100m at 2.97 Gbps, 200m at 1.485 Gbps, and 400m at 270 Mbps SDI Camera Programmable mute level Manual bypass mode Standards Compliance Differential CML outputs (50 on-chip terminations) SMPTE 259, SMPTE 292M, SMPTE 344M, Single 3.3V power supply SMPTE 424M complaint Small form factor (4x4mm, 16-pin QFN package) Supports DVB-ASI (270 Mbps) Pb-free and RoHS compliant Extended operating temperature range: 10 to +85 C Functional Block Diagram SD/ MUTE THRESH M21324 Cable Equalizer CONTROL LOGIC 1 SDI SDO EQUALIZER INPUT DC OUTPUT BUFFER RESTORE CORE BUFFER SDI 0 SDO EQ BYP 21324-DSH-001-D Mindspeed Technologies March 2010 Mindspeed Proprietary and ConfidentialOrdering Information Part Number Package Operating Data Rate Operating Temperature M21324G-13* 16-pin QFN (RoHS compliant) 1432970 Mbps 10 C to 85 C * Consult the price list for exact part number when ordering. * The letter G designator after the part number indicates a RoHS-compliant package. Refer to www.mindspeed.com for additional information. Revision History Revision Level Date Description D Released March 2010 Replaced MLF with QFN references. C Released November 2009 Updated for -13 part. Added marking diagram. B Released August 2007 Added (Junction to Ambient Thermal Resistance) to Table 1-2. JA A Preliminary August 2007 Preliminary Release. M21324 Marking Diagram 32413 Lot Date and Country 21324-DSH-001-D Mindspeed Technologies 2 Mindspeed Proprietary and Confidential