LMX2316TM/NOPB National Semiconductor, LMX2316TM/NOPB Datasheet - Page 17

• Manufacturer Part Number: LMX2316TM/NOPB
• Description: IC FREQ SYNTHESIZER 16-TSSOP
• Manufacturer: National Semiconductor
• Series: PLLatinum™r
• Type: PLL Frequency Synthesizerr

Specifications of LMX2316TM/NOPB

• Pll: Yes
• Input: CMOS
• Output: CMOS
• Number Of Circuits: 1
• Ratio - Input:output: 2:1
• Differential - Input:output: No/No
• Frequency - Max: 1.2GHz
• Divider/multiplier: Yes/No
• Voltage - Supply: 2.3 V ~ 5.5 V
• Operating Temperature: -40°C ~ 85°C
• Mounting Type: Surface Mount
• Package / Case: 16-TSSOP
• Frequency-max: 1.2GHz
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Other names: *LMX2316TM; *LMX2316TM/NOPB; LMX2316TM

2.0 Application Information
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 are
2.10 FastLock MODE 2 PROGRAMMING
Again, the F[1]–F[7] bits will be denoted as don’t care (*) but
are dependent on the desired modes of the applicable func-
tions. To program the device for mode 2 FastLock, the
F[8]–F[10] bits are programmed 101, while the N[19] bit is
set to 1. The device will stay in the 4X current mode for the
programmed number of phase detector cycles. Bits
FastLock modes 3 and 4 are programmed in the same
manner and give the added 4X gain increase as discussed in
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programmed 100, while the N[19] bit is set to 1. The device
will stay in the 4X current mode until another N bit stream is
sent with the N[19] bit reset to 0. This gives a bit stream as
follows:
F[11]–F[14] program this number of cycles and are shown in
Table 6. For our example, we will use 27 phase detector
cycles, i.e. bits F[11]–F[14] will be 0110
detector cycles, the N[19] bit returns to zero, bringing the
device back to low current mode. The resulting bit stream is
as follows:
Section 1.3.4 FastLock modes.
10012717
10012718
b
. After 27 phase
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