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GS1535 Datasheet(PDF) 1 Page - Gennum Corporation |
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GS1535 Datasheet(HTML) 1 Page - Gennum Corporation |
1 / 22 page www.gennum.com GS1535 HD-LINX II™ Multi-Rate SDI Automatic Reclocker GS1535 Data Sheet 18557 - 8 February 2005 1 of 22 Key Features • SMPTE 292M, 259M and 344M compliant • Supports data rates of 143, 177, 270, 360, 540, 1483.5, 1485 Mb/s • Supports DVB-ASI at 270Mb/s • Auto and Manual Modes for rate selection • Standards indication in Auto Mode • 4:1 input multiplexor • Lock Detect Output • On-chip Input and Output Termination • Differential inputs and outputs • Configuarble automatic Mute or Bypass when not locked • Manual Bypass function • SD/HD indication output to control GS1528 Dual Slew-Rate Cable Driver • Pb-free and Green • Single 3.3V power supply • Operating temperature range: 0°C to 70°C Applications • SMPTE 292M, SMPTE 259M and SMPTE 344M Serial Digital Interfaces Description The GS1535 Multi-Rate Serial Digital Reclocker is designed to automatically recover the embedded clock signal and re-time the data from a SMPTE 292M, SMPTE 259M or SMPTE 344M compliant digital video signal. The device removes the high frequency jitter components from the bit-serial stream. Input termination is on-chip for seamless matching to 50 Ω transmission lines. An LVPECL compliant output interfaces seamlessly to the GS1528 Cable Driver The GS1535 can operate in either auto or manual rate selection mode. In Auto mode the GS1535 automatically detects and locks onto an incoming SMPTE SDI data signal from 143 Mb/s to 1.485 Gb/s. For single rate data systems, the GS1535 can be configured to operate in manual mode. In both modes, the GS1535 requires only one external crystal to set the VCO frequency when not locked and provides adjustment free operation. In systems which require passing non-SMPTE data rates, the GS1535 will automatically or manually enter a bypass mode in order to pass the signal without reclocking. The ASI/177 input pin allows for manual selection of support of either 177Mb/s or DVB-ASI inputs. GS1535 Functional Block Diagram XTAL+ XTAL- XTAL OUT- XTAL OUT+ DDI_SEL[1:0] DDI 1 DDI 2 DDI 3 DDI 0 LF+ LF- KBB DDO_MUTE DDO/DDO AUTOBYPASS BYPASS LD AUTO/MAN SS[2:0] ASI/177 XTAL OSC BUFFER DATA BUFFER VCO BYPASS LOGIC DIVIDE BY 2,4,6,8,12,16 PHASE FREQUENCY DETECTOR DIVIDE BY 152, 160, 208 CONTROL LOGIC CHARGE PUMP M U X D A T A M U X M U X RE-TIMER PHASE DETECTOR |
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