Document
GS1582 Multi-Rate Serializer with Cable Driver, Audio Multiplexer and ClockCleanerTM
Key Features
• HD-SDI, SD-SDI, DVB-ASI transmitter with audio embedding
• Integrated SMPTE 292M and 259M-C compliant cable driver
• Integrated ClockCleaner™ • User selectable video processing features, including:
Generic ancillary data insertion Support for HVF or EIA/CEA-861 timing input Automatic standard detection and indication Enhanced SMPTE 352M payload identifier
generation and insertion TRS, CRC, ANC data checksum, and line number
calculation and insertion EDH packet generation and insertion Illegal code remapping SMPTE 292M and SMPTE 259M-C compliant
scrambling and NRZ → NRZI encoding Blanking of input HANC and VANC space • User selectable audio processing features, including: SMPTE 299M and SMPTE 272M-A/C compliant
audio embedding Support for up to 8 channels Support for audio group replacement • JTAG test interface • 1.8V core and 3.3V charge pump power supply • 1.8V and 3.3V digital I/O support • Low power standby mode
• Operating temperature range: -20oC to +85oC • Pb-free, RoHS compliant, 11mm x 11mm 100-ball BGA
package
Applications
• SMPTE 292M and SMPTE 259M-C Serial Digital Interfaces
• DVB-ASI Serial Digital Interfaces
Description
The GS1582 is the next generation multi-standard serializer with an integrated cable driver. The device provides robust parallel to serial conversion, generating a SMPTE 292M/259M-C compliant serial digital output signal. The integrated cable driver features an output disable (high impedance) mode and an adjustable signal swing. Data input is accepted in 20-bit parallel format or 10-bit parallel format. An associated parallel clock input must be provided at the appropriate operating frequency; 74.25/74.1758/13.5MHz (20-bit mode) or 148.5/148.352/27MHz (10-bit mode).
The GS1582 features an internal PLL which, if desired, can be configured for a loop bandwidth below 100kHz. When used in conjunction with the GO1555 Voltage Controlled Oscillator, the GS1582 can tolerate well in excess of 300ps jitter on the input PCLK and still provide output jitter within SMPTE specifications.
In addition to serializing the input, the GS1582 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. The device also provides a range of other data processing functions. All processing features are optional and may be enabled/disabled via external control pin(s) and/or host interface programming.
The GS1582 can embed up to 8 channels of audio into the video data stream in accordance with SMPTE 299M and SMPTE 272M. The audio input signal formats supported by the device include AES/EBU and I2S serial digital formats with a 16, 20 or 24 bit sample size and a 48 kHz sample rate. Additional audio processing features include individual channel enable, channel swap, group swap, ECC generation and audio channel status insertion.
Typical power consumption, including the GO1555 VCO, is 500mW. The standby feature allows the power to be reduced to 125mW. Power may be reduced to less than
GS1582 Multi-Rate Serializer with Cable Driver, Audio Multiplexer and ClockCleanerTM
www.gennum.com
Data Sheet
40117 - 4
December 2011
1 of 115
10mW by also removing the power to the cable driver and The GS1582 is Pb-free and RoHS compliant. eliminating transitions at the parallel data and clock inputs.
Functional Block Diagram
SDIN_TDI SCLK_TCK CS_TMS SDOUT_TDO DVB_ASI
AUDIO_INT GRP1_EN/DIS GRP2_EN/DIS
Ain_1/2 Ain_3/4 Ain_5/6 Ain_7/8 ACLK1 ACLK2 WCLK1 WCLK2
F/DE V/VSYNC H/HSYNC TIM_861 DIN[19:0]
PCLK
Input Mux/ Demux
GSPI
Host Interface
HANC/ VANC Blanking
SD/HD Audio Embedding
SMPTE 352M Generation and
Insertion
ANC Data Insertion
TRS, Line Number and CRC Insertion
EDH Packet Insertion
NRZ/NRZI SMPTE
Scrambler
Mux
Parallel to Serial Converter
SMPTE Cable Driver
RSET SDO SDO SDO_EN/DIS
DVB ASI ENDEC
PhaseDetector/ Chargepump
ClockCleaner™
2.5V Regulator
LOCKED
VCO_VCC VCO_GND
CP_RES LF VCO
GS1582 Functional Block Diagram
GS1582 Multi-Rate Serializer with Cable Driver, Audio Multiplexer and ClockCleanerTM
Data Sheet
40117 - 4
December 2011
2 of 115
Revision History
Version ECR
PCN Date
Changes and/or Modifications
4 157323 – November Corrected a typo under Default column for Address 422h in Table 4-44. 2011
3
151526 52183
March
Changed Parallel Input Data Hold Time from 2ns to 0.8ns in Table 2-3: AC Electrical
2009
Characteristics.
2 150785 51685 October Changed Figure 4-30: GSPI Write Mode Timing. 2008
1 146167 – November Converted to a Data Sheet.
2007
Updates to: Note 4 in Table 2-2 on page 20, Audio Modes of Operation on page 38,
Arbitrary, SMPTE 352M & EDH Packet Detect on page 40, Table 4-3 on page 39, 4.8
Ancillary Data Insertion, Separate Line Mode on page 64, Concatenated Mode on
.