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전자부품 데이터시트 검색엔진 |
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전자부품 데이터시트 검색엔진 |
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GS1532 데이터시트(PDF) 1 Page - Gennum Corporation |
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GS1532 데이터시트(HTML) 1 Page - Gennum Corporation |
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1 / 51 page  www.gennum.com GS1532 HD-LINX® II Multi-Rate Serializer with ClockCleaner™ GS1532 Data Sheet 21498 - 8 February 2007 1 of 51 Key Features • SMPTE 292M and SMPTE 259M-C compliant scrambling and NRZ → NRZI encoding (with bypass) • DVB-ASI sync word insertion and 8b/10b encoding • User selectable additional processing features including: • CRC, ANC data checksum, and line number calculation and insertion • TRS and EDH packet generation and insertion • illegal code remapping • Internal flywheel for noise immune TRS generation • 20-bit / 10-bit CMOS parallel input data bus • 148.5MHz / 74.25MHz / 27MHz / 13.5MHz parallel digital input • Automatic standards detection and indication • Pb-free and RoHS Compliant • 1.8V core power supply and 3.3V charge pump power supply • 3.3V digital I/O supply • JTAG test interface • Small footprint compatible with GS1560A, GS1561, GS9060, and GS9062 Applications • SMPTE 292M Serial Digital Interfaces • SMPTE 259M-C Serial Digital Interfaces • DVB-ASI Serial Digital Interfaces Description The GS1532 is a multi-standard serializer with an integrated cable driver. When used in conjunction with the GO1555/GO1525* Voltage Controlled Oscillator, a transmit solution can be realized for HD-SDI, SD-SDI and DVB-ASI applications. The device features an internal PLL, which can be configured for loop bandwidth as narrow as 100kHz. Thus the GS1532 can tolerate in excess of 300ps jitter on the input PCLK and still provide output jitter well within SMPTE specification. Connect the output clocks from Gennum’s GS4911 clock generator directly to the GS1532’s PCLK input and configure the GS1532’s loop bandwidth accordingly. In addition to serializing the input, the GS1532 performs NRZ-to-NRZI encoding and scrambling as per SMPTE 292M/259M-C when operating in SMPTE mode. When operating in DVB-ASI mode, the device will insert K28.5 sync characters and 8b/10b encode the data prior to serialization. Parallel data inputs are provided for 10-bit multiplexed or 20-bit demultiplexed formats at both HD and SD signal rates. An appropriate parallel clock input signal is also required. The integrated cable driver features an output mute on loss of parallel clock, high impedance mode, adjustable signal swing, and automatic dual slew rate selection depending on HD/SD operational requirements. The GS1532 also includes a range of data processing functions including automatic standards detection and EDH support. The device can also insert TRS signals, calculate and insert line numbers and CRC’s, re-map illegal code words and insert SMPTE 352M payload identifier packets. All processing features are optional and may be enabled/disabled via external control pin(s) and/or host interface programming. The GS1532 is Pb-free, and the encapsulation compound does not contain halogenated flame retardant. This component and all homogeneous subcomponents are RoHS compliant. *For new designs use GO1555 |
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