參數(shù)資料
型號(hào)： LMK04000BEVAL/NOPB
廠商： National Semiconductor
文件頁(yè)數(shù)： 5/65頁(yè)
文件大小： 0K
描述： BOARD EVAL PRECISION CLOCK PLL
標(biāo)準(zhǔn)包裝： 1
系列： PowerWise®
主要目的： 計(jì)時(shí)，時(shí)鐘調(diào)節(jié)器
嵌入式： 否
已用 IC / 零件： LMK04000
主要屬性： 122.88 MHz VCXO
次要屬性： 集成式 PLL 和 VCO
已供物品： 板，線纜
其它名稱： LMK04000BEVAL
LMK04000BEVAL-ND
SNOSAZ8J – SEPTEMBER 2008 – REVISED SEPTEMBER 2011
Electrical Characteristics (continued)
(3.15 V
≤ VCC ≤ 3.45 V, -40 °C ≤ TA ≤ 85 °C. Typical values represent most likely parametric norms at VCC = 3.3 V, TA = 25
°C, at the Recommended Operating Conditions at the time of product characterization and are not guaranteed.)
Symbol
Parameter
Conditions
Min
Typ
Max
Units
LMK040x0 (13)
BW = 12 kHz to 20 MHz
105
fVCO = 1200 MHz
BW = 100 Hz to 20 MHz
110
Integrated RMS Jitter
LMK040x1 (14)
BW = 12 kHz to 20 MHz
100
fVCO = 1500 MHz
BW = 100 Hz to 20 MHz
105
Integrated RMS Jitter
JFout
fs
LMK040x2 (15)
BW = 12 kHz to 20 MHz
95
fVCO = 1600 MHz
BW = 100 Hz to 20 MHz
100
Integrated RMS Jitter
LMK040x3 (16)
BW = 12 kHz to 20 MHz
105
fVCO = 2000 MHz
BW = 100 Hz to 20 MHz
110
Integrated RMS Jitter
CLKout's Internal VCO Closed Loop Phase Noise and Jitter Specifications using an Instrumentation Quality VCXO
Offset = 1 kHz
-125
LMK040x0 (17)
fCLKout = 250 MHz
Offset = 10 kHz
-130
SSB Phase Noise
Offset = 100 kHz
-132
Measured at Clock Outputs
Offset = 1 MHz
-148
Value is average for all output
types
Offset = 10 MHz
-157
Offset = 1 kHz
-126
LMK040x1 (18)
fCLKout = 250 MHz
Offset = 10 kHz
-133
SSB Phase Noise
Offset = 100 kHz
-136
Measured at Clock Outputs
Offset = 1 MHz
-147
Value is average for all output
types
Offset = 10 MHz
-156
L(f)CLKout
dBc/Hz
Offset = 1 kHz
-127
LMK040x2 (19)
fCLKout = 250 MHz
Offset = 10 kHz
-133
SSB Phase Noise
Offset = 100 kHz
-134
Measured at Clock Outputs
Offset = 1 MHz
-145
Value is average for all output
types
Offset = 10 MHz
-157
Offset = 1 kHz
-125
LMK040x3 (20)
fCLKout = 250 MHz
Offset = 10 kHz
-132
SSB Phase Noise
Offset = 100 kHz
-135
Measured at Clock Outputs
Offset = 1 MHz
-145
Value Is average for all output
types
Offset = 10 MHz
-156
(17) For LMK040x0, fVCO = 1250 MHz. PLL1 is powered down. A 100 MHz Wenzel XO (model: 501-04623G) drives the OSCin input of
PLL2. PLL2 parameters: VCO_DIV = 5, N2 = 5, R2 = 2, FDET = 50 MHz, ICP2 = 3.2 mA, C1 = 22 pF, C2 = 5.6 nF, R2 = 1.8 kΩ, LBW =
251 kHz, PM = 76°. Wenzel XO phase noise: 100 Hz: -132 dBc/Hz; 1 kHz: -147 dBc/Hz; 10 kHz: -159 dBc/Hz; 100 kHz: -167 dBc/Hz.
CLKoutX_DIV = Bypass. CLKout_DLY = OFF.
(18) For LMK040x1, fVCO = 1500 MHz. PLL1 is powered down. A 100 MHz Wenzel XO (model: 501-04623G) drives the OSCin input of
PLL2. PLL2 parameters: VCO_DIV = 3, N2 = 5, R2 = 1, FDET = 100 MHz, ICP2 = 1.6 mA, C1 = 22 pF, C2 = 5.6 nF, R2 = 1.8 kΩ, LBW =
268 kHz, PM = 75°. Wenzel XO phase noise: 100 Hz: -132 dBc/Hz; 1 kHz: -147 dBc/Hz; 10 kHz: -159 dBc/Hz; 100 kHz: -167 dBc/Hz.
CLKoutX_DIV = 2. CLKout_DLY = OFF.
(19) For LMK040x2, fVCO = 1750 MHz. PLL1 is powered down. A 100 MHz Wenzel XO (model: 501-04623G) drives the OSCin input of
PLL2. PLL2 parameters: VCO_DIV = 7, N2 = 5, R2 = 2, FDET = 50 MHz, ICP2 = 1.6 mA, C1 = 22 pF, C2 = 5.6 nF, R2 = 1.8 kΩ, LBW =
354 kHz, PM = 73°. Wenzel XO phase noise: 100 Hz: -132 dBc/Hz; 1 kHz: -147 dBc/Hz; 10 kHz: -159 dBc/Hz; 100 kHz: -167 dBc/Hz.
CLKoutX_DIV = Bypass. CLKout_DLY = OFF.
(20) For LMK040x3, fVCO = 2000 MHz. PLL1 is powered down. A 100 MHz Wenzel XO (model: 501-04623G) drives the OSCin input of
PLL2. PLL2 parameters: VCO_DIV = 2, N2 = 10, R2 = 1, FDET = 100 MHz, ICP2 = 1.6 mA, C1 = 22 pF, C2 = 5.6 nF, R2 = 1.8 kΩ, LBW
= 434 kHz, PM = 69°. Wenzel XO phase noise: 100 Hz: -132 dBc/Hz; 1 kHz: -147 dBc/Hz; 10 kHz: -159 dBc/Hz; 100 kHz: -167 dBc/Hz.
CLKoutX_DIV = 4. CLKout_DLY = OFF.
Copyright 2008–2011, Texas Instruments Incorporated
13
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