LMH0346SQ NSC [National Semiconductor], LMH0346SQ Datasheet
LMH0346SQ
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LMH0346SQ Summary of contents
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Gbps HD/SD SDI Reclocker with Dual Differential Outputs General Description The LMH0346 3 Gbps HD/SD SDI Reclocker retimes serial digital video data conforming to the SMPTE 424M, SMPTE 292M, and SMPTE 259M (C) standards. The LMH0346 op- erates at ...
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Block Diagram Connection Diagrams The exposed die attach pad is the negative electrical terminal for this device. It must be connected to the negative power supply voltage. www.national.com 20215002 20-Pin e-TSSOP Order Number LMH0346MH See NS Package Number MXA20A 2 ...
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... The exposed die attach pad is the primary negative electrical terminal for this device. It must be connected to the negative power supply voltage. 24-Pin LLP Order Number LMH0346SQ See NS Package Number SQA24B 3 20215006 www.national.com ...
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Pin Descriptions e-TSSOP LLP Name Pin Pin 1 24 LF1 2 1 LF2 3 2 RATE RATE SDI 6 5 SDI BYPASS/AUTO BYPASS 9 8 OUTPUT MUTE 10 ...
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Absolute Maximum Ratings It is anticipated that this device will not be offered in a military qualified version. If Military/Aerospace specified devices are required, please contact the National Semicon- ductor Sales Office/Distributors for availability and specifica- tions. Supply Voltage (V ...
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AC Electrical Characteristics Over Supply Voltage and Operating Temperature ranges, unless otherwise specified. Symbol Parameter BR Serial Data Rate SD BR Serial Data Rate SD BR Serial Data Rate SD TOL Serial Input Jitter JIT Tolerance TOL Serial Input Jitter ...
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Symbol Parameter Input rise/fall time 20%–80%, 270 Mbps (Note Input rise/fall time 20%–80%, 1483 or 1485 r f Mbps Input rise/fall time 20%–80%, 2967 or 2970 r f Mbps, ...
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Device Description The LMH0346 3 Gbps HD/SD SDI Reclocker is used in many types of digital video signal processing equipment. Supported serial digital video standards are SMPTE 259M (C), SMPTE 292M, and SMPTE 424M. Corresponding serial data rates are 270 ...
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FIGURE 2. Equivalent SDO Output Circuit (SDO, SDO, SCO/SDO2, SCO/SDO2) OPERATING SERIAL DATA RATES This device operates at serial data rates of 270 Mbps, 1483 Mbps, 1485 Mbps, 2967 Mbps, and 2970 Mbps. The device does not lock to harmonics ...
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LOCK DETECT OUTPUT MUTE LOCK DETECT 1 LOCK DETECT SD/HD The SD/HD output indicates whether the LMH0346 is pro- cessing Gbps data rates. It may be used to ...
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SCO_EN Input SCO_EN enables the SCO/SDO2 differential output to function either as a serial clock or second serial data output. SCO/SDO2 functions as a serial clock when SCO_EN is high. This pin has an internal pull-down device. The default state ...
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Application Information Figure 4 shows an application circuit for the LMH0346 along with the LMH0344 3 Gbps HD/SD SDI Adaptive Cable Equal- izer and LMH0302 3 Gbps HD/SD SDI Cable Driver. The LMH0346 inputs are LVPECL compatible. The LMH0346 has ...
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... The ground connection for the LMH0346 is through the large exposed DAP. The DAP must be connected to ground for proper operation of the LMH0346. This is the only ground connection for the LMH0346MH the primary ground con- nection, required for good signal integrity, for the LMH0346SQ. 13 Table 3. Alternately, a www.national.com ...
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... Physical Dimensions www.national.com inches (millimeters) unless otherwise noted 20-Pin e-TSSOP Order Number LMH0346MH NS Package Number MXA20A 24-Pin LLP Order Number LMH0346SQ NS Package Number SQA24B 14 ...
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Notes 15 www.national.com ...
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For more National Semiconductor product information and proven design tools, visit the following Web sites at: Products Amplifiers www.national.com/amplifiers Audio www.national.com/audio Clock and Timing www.national.com/timing Data Converters www.national.com/adc Interface www.national.com/interface LVDS www.national.com/lvds Power Management www.national.com/power Switching Regulators www.national.com/switchers LDOs www.national.com/ldo ...