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PLLatinum Sim - how do you add reference phase noise?

I'm using a 100 MHz reference. How do I add the phase noise of the reference to the simulation?

  • While I'm asking, is there a user guide for PLLatinum Sim?

  • Hello Charles,

    You can set the feature level of PLLatinum sim to either intermediate or advanced. Then, from the Phase Noise page, there is a box for "OSC, PLL, and VCO Noise" which gives two options: either you can use metrics to infer the 1/f^3, 1/f^2, and floor regions by selecting "Use Metrics" and toggling "manual override" to enter noise at certain offsets, or you can select "Load Data" to import a trace data text file. The imported file should be a comma-separated list of frequency offsets and phase noise measurements, see the example attached.

    100 MHz Crystek CVHD-950.txt
    100	-104.0602634
    101.8009751	-104.4965525
    103.6343854	-105.2621392
    105.5008148	-105.6995381
    107.4008583	-106.2064508
    109.335121	-106.5346534
    111.3042193	-106.9748847
    113.3087806	-107.0001356
    115.3494436	-106.820234
    117.4268583	-107.1720106
    119.5416868	-107.2895957
    121.6946029	-106.6747136
    123.8862924	-107.0336233
    126.1174537	-107.3025718
    128.3887977	-107.821734
    130.701048	-107.9856623
    133.0549413	-107.7175083
    135.4512277	-108.1423724
    137.8906706	-108.262182
    140.3740473	-109.2459988
    142.9021489	-109.2353548
    145.4757811	-108.8527547
    148.0957637	-108.9707547
    150.7629316	-108.9439852
    153.4781344	-109.1720068
    156.2422375	-109.1952033
    159.0561213	-109.507482
    161.9206824	-109.8642461
    164.8368336	-110.0315363
    167.805504	-110.2441933
    170.8276394	-109.829949
    173.9042027	-109.8432663
    177.0361741	-110.2807308
    180.2245515	-110.5284422
    183.4703509	-110.5305914
    186.7746062	-110.3192531
    190.1383704	-110.6262071
    193.5627151	-111.2825134
    197.0487315	-111.1002571
    200.5975301	-110.3641072
    204.2102417	-112.0103248
    207.8880174	-112.7548714
    211.6320288	-112.321594
    215.443469	-112.3516655
    219.3235523	-112.7567002
    223.2735149	-113.5048978
    227.2946153	-113.3817329
    231.3881348	-113.3606183
    235.5553775	-113.9569369
    239.7976713	-113.6707244
    244.1163677	-113.8596115
    248.5128427	-113.9007157
    252.9884972	-114.3888306
    257.544757	-114.2931693
    262.183074	-114.1694695
    266.904926	-114.9301276
    271.7118173	-114.7774753
    276.6052795	-114.7566999
    281.5868718	-115.513062
    286.6581812	-114.7951316
    291.8208238	-115.6315873
    297.0764442	-115.6950644
    302.426717	-115.7961275
    307.873347	-117.2989363
    313.4180693	-116.1367744
    319.0626508	-117.0362207
    324.8088897	-116.53992
    330.658617	-116.4981219
    336.6136964	-117.349379
    342.6760253	-117.8105521
    348.8475353	-117.3397642
    355.1301926	-117.3695439
    361.525999	-117.1853901
    368.0369923	-117.7669519
    374.665247	-118.2931164
    381.4128748	-117.8042569
    388.2820258	-118.1281837
    395.2748885	-118.1108342
    402.3936909	-118.1470783
    409.6407011	-118.2341659
    417.0182282	-118.8548268
    424.5286227	-118.9187224
    432.1742776	-119.3479347
    439.9576288	-119.0891466
    447.8811562	-119.5713954
    455.9473844	-119.9805659
    464.1588834	-120.1736394
    472.5182694	-120.1695835
    481.0282058	-120.6183736
    489.6914041	-120.4198515
    498.5106245	-120.0976535
    507.4886768	-120.7242759
    516.6284216	-120.9248955
    525.9327709	-121.0227474
    535.4046892	-121.2355184
    545.0471945	-122.0519694
    554.8633588	-121.7852083
    564.8563098	-121.5002048
    575.0292314	-121.0829123
    585.3853648	-121.8759244
    595.9280096	-121.7961432
    606.6605248	-121.9775881
    617.5863299	-122.9458711
    628.708906	-122.6881613
    640.031797	-122.6299571
    651.5586104	-122.7057802
    663.2930188	-123.1198994
    675.238761	-123.4939255
    687.3996431	-123.4048382
    699.7795397	-123.2682324
    712.382395	-124.02734
    725.2122247	-123.7181195
    738.2731164	-124.1184742
    751.5692316	-124.3308923
    765.1048064	-124.1697219
    778.8841536	-124.4949592
    792.9116634	-124.9826194
    807.1918052	-124.7253678
    821.7291288	-125.1997448
    836.5282659	-125.4522092
    851.5939318	-125.6506268
    866.9309266	-125.5067267
    882.5441369	-125.7757889
    898.4385372	-125.4133839
    914.6191917	-125.7284265
    931.0912558	-126.1274938
    947.8599777	-126.5401288
    964.9307	-126.1743216
    982.3088618	-126.8650621
    1000	-126.2701184
    1018.009751	-127.0693728
    1036.343854	-127.3060501
    1055.008148	-127.1772989
    1074.008583	-127.698559
    1093.35121	-127.326676
    1113.042193	-128.0549754
    1133.087806	-127.9004363
    1153.494436	-128.6549138
    1174.268583	-128.1629583
    1195.416868	-128.1035656
    1216.946029	-128.8770389
    1238.862924	-129.1193558
    1261.174537	-129.0489969
    1283.887977	-129.0239263
    1307.01048	-129.3994032
    1330.549413	-129.7389173
    1354.512277	-129.7743829
    1378.906706	-129.8324644
    1403.740473	-129.6844508
    1429.021489	-129.7135587
    1454.757811	-129.8704867
    1480.957637	-130.0844747
    1507.629316	-130.2563241
    1534.781344	-130.2603919
    1562.422375	-130.5952241
    1590.561213	-130.7692658
    1619.206824	-130.9389585
    1648.368336	-131.1271419
    1678.05504	-131.4268441
    1708.276394	-131.7104801
    1739.042027	-131.7500192
    1770.361741	-131.91174
    1802.245515	-131.8851512
    1834.703509	-131.9959838
    1867.746062	-132.3616479
    1901.383704	-132.490017
    1935.627151	-132.687077
    1970.487315	-132.8389215
    2005.975301	-132.7467066
    2042.102417	-132.8278741
    2078.880174	-133.0126029
    2116.320288	-133.1132532
    2154.43469	-133.5446108
    2193.235523	-133.7454247
    2232.735149	-133.8982068
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    2313.881348	-134.0941653
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    2397.976713	-134.526032
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    2621.83074	-135.1884214
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    2918.208238	-135.871837
    2970.764442	-136.2261359
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    3134.180693	-136.7010866
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    3551.301926	-137.6696174
    3615.25999	-137.9174899
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    3746.65247	-138.2256345
    3814.128748	-138.1073836
    3882.820258	-138.4651132
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    4023.936909	-138.5246797
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    4170.182282	-139.1120499
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    5450.471945	-140.898653
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    8365.282659	-143.346277
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    9310.912558	-143.9088489
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    9823.088618	-143.8401714
    10000	-142.5630035
    10180.09751	-142.789242
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    There isn't a user's guide for PLLatinum Sim per se, but you can click on the question marks next to various section headers for an in-depth explanation of most of the features and boxes:

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