LMX2316 National Semiconductor, LMX2316 Datasheet
LMX2316
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LMX2316 Summary of contents
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... Serial data is transferred into the LMX2306/16/26 via a three wire interface (Data, Enable, Clock). Supply voltage can range from 2.3V to 5.5V. The LMX2306/16/26 feature ultra low current consumption; LMX2306 - 1 3V, LMX2316 - 2 3V, and LMX2326 - 4 3V. The LMX2306/16/26 synthesizers are available in a 16-pin TSSOP surface mount plastic package. Functional Block Diagram TRI-STATE ® ...
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... Connection Diagrams LMX2306/16/26 16-Lead (0.173” Wide) Thin Shrink Small Outline Package(TM) Order Number LMX2306TM, LMX2306TMX, LMX2316TM, LMX2316TMX, LMX2326TM or LMX2326TMX See NS Package Number MTC16 Pin Descriptions 16-Pin 16-Pin Pin I/O TSSOP CSP Name FastLock Output. For connection of parallel resistor to the loop filter. (See Section 1.3.4 FASTLOCK o MODES description ...
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... ESD sensitive. Handling and assembly of this device should only be done at ESD protected work stations. < 85˚C except as specified Conditions LMX2306 V = 2. LMX2316 V = 2.3V to 5.5V CC LMX2326 V = 2. 3.0V CC LMX2306 V = 2.3V to 5.5V CC LMX2316 V = 2.3V to 5.5V CC LMX2326 V = 2. 3. 2. 2. 3.0V to 5.5V CC (Note 4) ...
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Electrical Characteristics < 3.0V 3.0V; −40˚ Symbol Parameter ICP CP Sink vs Source Mismatch o-sink vs ICP o-source ICP Current vs Voltage o Do ICP Current ...
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Charge Pump Current Specification Definitions − ∆ Charge Pump Sink Current at VCP = Charge Pump Sink Current at VCP = ∆ Charge Pump Sink Current ...
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RF Sensitivity Test Block Diagram Note 5: N=10,000 R=50 P=32 Note 6: Sensitivity limit is reached when the error of the divided RF output, FoLD, is greater than or equal to 1 Hz. www.national.com 6 10012715 ...
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Functional Description The simplified block diagram below shows the 21-bit data register, a 14-bit R Counter, an 18-bit N Counter, and a 18-bit Function Latch (intermediate latches are not shown). The data stream is shifted (on the rising edge ...
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... Counter), and the GO bit (See Section 1.3.4 FastLock MODES section) MSB first. For the LMX2306 the maximum N value is 65535 and the minimum N value is 56. For the LMX2316/26, the maximum N value is 262143 and the minimum N value is 992. Serial data format is shown below. ...
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Functional Description 1.3 FUNCTION AND INITIALIZATION LATCHES Both the function and initialization latches write to the same registers. (See Section 2.1 DEVICE PROGRAMMING AFTER FIRST APPLYING V section for initialization latch description COUNTER ...
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Functional Description 1.3.1 Powerdown Operation Bits F[2] and F[18] provide programmable powerdown modes when the CE pin is HIGH. When CE is LOW, the part is always immediately disabled regardless of powerdown bit status. Refer to Table 3. Synchronous ...
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... The four FastLock modes in Table 5 are similar to the technique used in National Semiconductor’s LMX 233X series Dual Phase Locked Loops and are selected by F9, F10, and N19 when F8 is HIGH. Modes 1 and 2 change loop bandwidth by a factor of two while modes 3 and 4 change the loop bandwidth by a factor of 4. Modes 1 and 2 increase charge pump magnitude by a factor of 4 and should use R2’ ...
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Functional Description FastLock Status F[8] FastLock Mode #1 1 FastLock Mode #2 1 FastLock Mode #3 1 FastLock Mode #4 1 Note 7: When the GO bit N[19] is set to one, the part is forced into the high ...
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Functional Description TABLE 6. FastLock Timeout Counter Value Programming Timeout Cycles) (Note 8) F11 0 1 (4) F12 0 0 (8) F13 0 0 (16) F14 0 0 (32) Note 8: The timeout counter decrements ...
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Functional Description 1.6 TYPICAL APPLICATION EXAMPLE OPERATIONAL NOTES: *VCO is assumed AC coupled. **R1 increases impedance so that VCO output power is provided to the load rather than the PLL. Typical values are 10Ω to 200Ω depending on the ...
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... To begin, determine the N and R counter values as follows vco comparison and osc comparison For this example R and N are determined as follows MHz/200 kHz = 50 and N = 950 MHz/200 kHz = 4750 15 LMX2316, and ) with a vco ). The crystal oscillator DATA Location www.national.com ...
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Application Information (Continued) 2.6 N COUNTER The calculated value of N, and the value of P are now used to determine the values of A and B where A and B are both integer values ...
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Application Information (Continued) 2.9 FastLock MODE 1 PROGRAMMING The F[1]–F[7] bits will be denoted as (*) and are dependent on the desired modes of the applicable functions. To pro- gram the device for mode 1 FastLock, the F[8]–F[10] bits ...
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... Physical Dimensions 16-Lead (0.173" Wide) Thin Shrink Small Outline Package (TM) Order Number LMX2306TM, LMX2316TM or LMX2326TM Order Number LMX2306TMX, LMX2316TMXor LMX2326TMX www.national.com inches (millimeters) unless otherwise noted For Tape and Reel (2500 Units Per Reel) NS Package Number MTC16 18 ...
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... BANNED SUBSTANCE COMPLIANCE National Semiconductor certifies that the products and packing materials meet the provisions of the Customer Products Stewardship Specification (CSP-9-111C2) and the Banned Substances and Materials of Interest Specification (CSP-9-111S2) and contain no ‘‘Banned Substances’’ as defined in CSP-9-111S2. ...