The GS9022 is a monolithic bipolar integrated circuit designed to serialize SMPTE 125M and SMPTE 244M bit parallel digital signals as well as other 8 or 10 bit parallel formats. This device performs the functions of sync detection, parallel to serial conversion, data scrambling (using the X9 + X4 +1 algorithm), 10x parallel clock multiplication and conversion of NRZ to NRZI serial data. The data rate is automatically set for SMPTE 259M data rates to 400 Mb/s. Other features include a lock detect output and an internal cable driver capable of driving two 75Ω loads.
The device requires a single +5 volt or -5 volt supply and typically consumes 650 mW of power while driving two 75 Ω loads. The 28 pin PLCC packaging assures a small footprint for the complete encoder function.
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•4ƒSC, 4:2:2 and 360 Mb/s serial digital interfaces for: Video cameras VTRs Signal generators Portable equipment
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• built-in 75 Ω cable driver with two serial outputs• standard independent operation• space saving 28 pin PLCC package• 650 mW typical power dissipation (data output driving 75 Ω load).• supports bit rates to 400 Mb/s• accepts 8 bit and 10 bit TTL and CMOS compatible parallel data inputs• fully compatible with SMPTE 259M serial digital standard• single +5 or -5 volt supply
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| PARAMETER |
VALUE |
| Supply Voltage |
5.5V |
| Input Voltage Range (any input) |
-VEE < VI< VCC |
| DC Input Current (any one input) |
10 mA |
| Power Dissipation (VS = 5.25 V) |
910 mW |
| Operating Temperature Range |
0°C T 70°C |
| Storage Temperature Range |
-65°C TS 150°C |
| Lead Temperature (soldering, 10 sec) |
260°C |
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