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GS1560A, GS1574, GS1578

Table of contents:
Info of GS1560A
Info of GS1574
Info of GS1578

GS1560A, GS1574, GS1578 Selling Leads, Datasheet

MFG:GENNUM Package Cooled:TSOP D/C:04+

GS1560A, GS1574, GS1578 Datasheet download

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Part Number: GS1560A

MFG: GENNUM

Package Cooled: TSOP

D/C: 04+

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GS1560A General Description

The GS1560A is a reclocking deserializer with a serial loopthrough cable driver. When used in conjunction with the GS1524 Automatic Cable Equalizer and the GO1525 Voltage Controlled Oscillator, a receive solution can be realized for HD-SDI, SD-SDI and DVB-ASI applications.

In addition to reclocking and deserializing the input data stream, the GS1560A performs NRZI-to-NRZ decoding, descrambling as per SMPTE 292M/259M-C, and word alignment when operating in SMPTE mode. When operating in DVB-ASI mode, the device will word align the data to K28.5 sync characters and 8b/10b decode the received stream.

Two serial digital input buffers are provided with a 2x1 multiplexer to allow the device to select from one of two serial digital input signals.

The integrated reclocker features a very wide Input Jitter Tolerance of ±0.3 UI (total 0.6 UI), a rapid asynchronous lock time, and full compliance with DVB-ASI data streams.

A integrated cable driver is provided for serial input loopthrough applications and can be selected to output either buffered or reclocked data. This cable driver also features an output mute on loss of signal, high impedance mode, adjustable signal swing, and automatic dual slew-rate selection depending on HD/SD operational requirements.

The GS1560A also includes a range of data processing functions such as error detection and correction, automatic standards detection, and EDH support. The device can also detect and extract SMPTE 325M payload identifier packets and independently identify the received video standard. This information is read from internal registers via the host interface port.

Line-based CRC errors, line number errors, TRS errors, EDH CRC errors and ancillary data checksum errors can all be detected. A single 'DATA_ERROR' pin is provided which is a logical 'OR'ing of all detectable errors. Individual error status is stored in internal 'ERROR_STATUS' registers.

Finally, the device can correct detected errors and insert new TRS ID words, line-based CRC words, ancillary data checksum words, EDH CRC words, and line numbers. Illegal code re-mapping is also available. All processing function may be individually enabled or disabled via host interface control.

GS1560A Maximum Ratings

PARAMETER	VALUE/UNITS
Supply Voltage Core	-0.3V to +2.1V
Supply Voltage I/O	-0.3V to +4.6V
Input Voltage Range (any input)	-2.0V to + 5.25V
Ambient Operating Temperature	-20°C < T_A < 85°C
Storage Temperature	-40°C < T_STG < 125°C
Lead Temperature (soldering, 10 sec)	230°C

NOTES:
1. See reflow solder profile

GS1560A Features

• SMPTE 292M and SMPTE 259M-C compliant descrambling and NRZI NRZ decoding (with bypass)
• DVB-ASI sync word detection and 8b/10b decoding
• auto-configuration for HD-SDI, SD-SDI and DVB-ASI
• serial loop-through cable driver output selectable as reclocked or non-reclocked
• dual serial digital input buffers with 2 x 1 mux
• integrated serial digital signal termination
• integrated reclocker
• automatic or manual rate selection / indication (HD/SD)
• descrambler bypass option
• adjustable loop bandwidth
• user selectable additional processing features including:
- CRC, TRS, ANC data checksum, line number and EDH CRC error detection and correction
- programmable ANC data detection
- illegal code remapping
• internal flywheel for noise immune H, V, F extraction
• FIFO load Pulse
• 20-bit / 10-bit CMOS parallel output data bus
• 148.5MHz / 74.25MHz / 27MHz / 13.5MHz parallel digital output
• automatic standards detection and indication
• 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 GS1561, GS1532, GS9060 and GS9062

GS1560A Typical Application

• SMPTE 292M Serial Digital Interfaces
• SMPTE 259M-C Serial Digital Interfaces
• DVB-ASI Serial Digital Interfaces

GS1560A Connection Diagram

GS1574 General Description

The GS1574 is a second-generation high-speed bipolar integrated circuit designed to equalize and restore signals received over 75 co-axial cable.

The GS1574 is designed to support SMPTE 292M, SMPTE 344M and SMPTE 259M, and is optimized for performance at 270Mb/s and 1.485Gb/s.

The GS1574 features DC restoration to compensate for the DC content of SMPTE pathological test patterns.

A voltage programmable mute threshold (MCLADJ) is included to allow muting of the GS1574 output when an approximate selected cable length is reached for SMPTE 259M signals. This feature allows the GS1574 to distinguish between low amplitude SD-SDI signals and noise at the input of the device. The serial digital outputs of the GS1574 may be forced to a mute state by applying a voltage to the MUTE pin.

Power consumption is typically 270mW using a 3.3V power supply. The GS1574 is lead-free, and the encapsulation compound does not contain halogenated flame retardant.

GS1574 Maximum Ratings

Parameter	Value
Supply Voltage	-0.5V to +3.6 V_DC
Input ESD Voltage (Human Body Model)	500V
Storage Temperature Range	-50 < Ts < 125
Input Voltage Range (any input)	-0.3 to (V_CC +0.3)V
Operating Temperature Range	0 to 70
Power Dissipation	300mW
Lead Temperature (soldering, 10 sec)	260

GS1574 Features

• SMPTE 292M, SMPTE 344M and SMPTE 259M compliant
• Automatic cable equalization
• Multi-standard operation from 143Mb/s to 1.485Gb/s
• Supports DVB-ASI at 270Mb/s
• Small footprint (4mm x 4mm)
• Pb-free and Green
• Pin compatible with the GS9074 Cable Equalizer
• Manual bypass (useful for low data rates with slow rise/fall times)
• Performance optimized for 270Mb/s and 1.485Gb/s
• Typical maximum equalized length of Belden 1694A cable: 140m at 1.485Gb/s, 350m at 270Mb/s
• 50 differential output (with internal 50 pull-ups)
• Manual output mute or programmable mute based on max cable length adjust
• Single 3.3V power supply operation
• Operating temperature range: 0 to +70

GS1574 Typical Application

• SMPTE 292M, SMPTE 344M and SMPTE 259M Coaxial Cable Serial Digital Interfaces.

GS1574 Connection Diagram

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