LMK01000ISQ NSC [National Semiconductor], LMK01000ISQ Datasheet
LMK01000ISQ
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LMK01000ISQ Summary of contents
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LMK01000/LMK01010/LMK01020 1.6 GHz High Performance Clock Buffer, Divider, and Distributor General Description The LMK01000/LMK01010/LMK01020 family provides an easy way to divide and distribute high performance clock sig- nals throughout the system. These devices provide best-in- class noise performance and are ...
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Functional Block Diagram Connection Diagram www.national.com 48-Pin LLP Package 2 30042801 30042802 ...
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Pin Descriptions Pin # 9,10 13, 16, 19, 22, 26, Vcc1, Vcc2, Vcc3, Vcc4, Vcc5, Vcc6, Vcc7, 30, 31, 33, 37, 40, 43, 46 Vcc8, Vcc9, Vcc10, Vcc11, Vcc12, Vcc13, Vcc14 4 5 ...
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Absolute Maximum Ratings If Military/Aerospace specified devices are required, please contact the National Semiconductor Sales Office/ Distributors for availability and specifications. Parameter Power Supply Voltage Input Voltage Storage Temperature Range Lead Temperature (solder 4 s) Junction Temperature Recommended Operating Conditions ...
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Symbol Parameter Delay Maximum Allowable Delay(Note 8) CLKout Allowable divide range. (Note that 1 is Divide CLKoutX the only allowable odd divide value) Jitter Additive RMS Jitter (Note 7) ADD Noise Floor Divider Noise Floor(Note 7) t CLKoutX to CLKoutY ...
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Symbol Parameter Jitter Additive RMS Jitter(Note 7) ADD Noise Floor Divider Noise Floor(Note 7) t CLKoutX to CLKoutY (Note 8) SKEW V Output High Voltage OH V Output Low Voltage OL V Differential Output Voltage OD V High-Level Input Voltage ...
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Symbol Parameter V High-Level Input Voltage IH V Low-Level Input Voltage IL I High-Level Input Current IH I Low-Level Input Current IL t Data to Clock Set Up Time CS t Data to Clock Hold Time CH t Clock Pulse ...
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Typical Performance Characteristics LVDS Single-Ended Peak to Peak Voltage LVDS Output Noise Floor Delay Noise Floor (Adds to Output Noise Floor) www.national.com LVPECL Single-Ended Peak to Peak Voltage 30042807 LVPECL Output Noise Floor 30042809 30042811 8 30042808 30042810 ...
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Functional Description The LMK010X0 family of clock distribution devices include a programmable divider, a phase synchronization circuit, a pro- grammable delay, a clock output mux, and an LVDS or LVPECL output buffer in each channel. This allows multiple integer-related ...
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General Programming Information The LMK01000/LMK01010/LMK01020 grammed using several 32-bit registers which control the device's operation. The registers consist of a data field and an address field. The last 4 register bits, ADDR[3:0] form the address field. The remaining 28 ...
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CLKout0 CLKout1 CLKout2 _EN _EN _EN RESET Register CLKout3 CLKout4 CLKout5 CLKout6 _EN _EN _EN _EN 11 CLKout7 _EN POWERDOWN EN_CLKout _Global CLKin _SELECT www.national.com ...
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REGISTER Registers R0 through R7 control the eight clock outputs. Reg- ister R0 controls CLKout0, Register R1 controls CLKout1, and so on. There is one additional bit in register R0 called RESET. Default Bit Name Bit ...
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CLKoutX_EN bit Conditions 0 EN_CLKout_Global bit = 1 GOE pin = High / No 1 Connect 1 2.4 REGISTER R9 and R14 The LMK01000 family requires register R14 to be pro- grammed as shown in the register map (see 2.2). ...
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Application Information 3.1 SYSTEM LEVEL DIAGRAM The following shows the LMK01000LMK01010/LMK01020 in a typical application. In this setup the clock may be divided, skewed, and redistributed. www.national.com FIGURE 1. Typical Application 14 30042870 ...
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CURRENT CONSUMPTION / POWER DISSIPATION CALCULATIONS ( Vcc = 3 25° Block Condition Core Current All outputs disabled. Includes input buffer currents. Low clock buffer The low clock buffer is enabled anytime one ...
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THERMAL MANAGEMENT Power consumption of the LMK01000/LMK01010/LMK01020 can be high enough to require attention to thermal manage- ment. For reliability and performance reasons the die tem- perature should be limited to a maximum of 125 °C. That is, as ...
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... Physical Dimensions inches (millimeters) unless otherwise noted Order Number Package Marking LMK01000ISQ K01000 I LMK01000ISQX K01000 I LMK01010ISQ K01010 I LMK01010ISQX K01010 I LMK01020ISQ K01020 I LMK01020ISQX K01020 I Leadless Leadframe Package (Bottom View) 48 Pin LLP (SQA48A) Package Packing 250 Unit Tape and Reel 2500 Unit Tape and Reel ...
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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 Conditioners www.national.com/timing Data Converters www.national.com/adc Displays www.national.com/displays Ethernet www.national.com/ethernet Interface www.national.com/interface LVDS www.national.com/lvds Power Management www.national.com/power Switching Regulators ...