LTC6948IUFD-4PBF 查看數據表（PDF） - Linear Technology
零件编号
产品描述 (功能)
生产厂家
LTC6948IUFD-4PBF
Linear Technology
LTC6948IUFD-4PBF Datasheet PDF : 36 Pages
| |||
LTC6948
Electrical Characteristics The l denotes the specifications which apply over the full operating
junction temperature range, otherwise specifications are at TA = 25°C. VREF+ = VD+ = VRF+ = 3.3V, VCP+ = VVCO+ = 5V unless otherwise
specified (Note 2). All voltages are with respect to GND.
SYMBOL
ICC(3.3V)
PARAMETER
Sum VREF+, VRF+ Supply Currents
CONDITIONS
MIN
RF Muted, OD[2:0] = 1
l
RF Enabled, RFO[1:0] = 0, OD[2:0] = 1
l
RF Enabled, RFO[1:0] = 3, OD[2:0] = 1
l
RF Enabled, RFO[1:0] = 3, OD[2:0] = 2
l
RF Enabled, RFO[1:0] = 3, OD[2:0] = 3
l
RF Enabled, RFO[1:0] = 3, OD[2:0] = 4 to 6 l
PDALL = 1
l
Phase Noise and Spurious
LVCO
VCO Phase Noise (LTC6948-1, fVCO = 3.0GHz, 10kHz Offset
fRF = 3.0GHz, OD[2:0] = 1 (Note 6))
1MHz Offset
40MHz Offset
VCO Phase Noise (LTC6948-2, fVCO = 4.0GHz, 10kHz Offset
fRF = 4.0GHz, OD[2:0] = 1 (Note 6))
1MHz Offset
40MHz Offset
VCO Phase Noise (LTC6948-3, fVCO = 5.0GHz, 10kHz Offset
fRF = 5.0GHz, OD[2:0] = 1 (Note 6))
1MHz Offset
40MHz Offset
VCO Phase Noise (LTC6948-4, fVCO = 6.0GHz, 10kHz Offset
fRF = 6.0GHz, OD[2:0] = 1 (Note 6))
1MHz Offset
40MHz Offset
VCO Phase Noise (LTC6948-3, fVCO = 5.0GHz, 10kHz Offset
fRF = 2.50GHz, OD[2 :0] = 2 (Note 6))
1MHz Offset
40MHz Offset
VCO Phase Noise (LTC6948-3, fVCO = 5.0GHz, 10kHz Offset
fRF = 1.667GHz, OD[2 :0] = 3 (Note 6))
1MHz Offset
40MHz Offset
VCO Phase Noise (LTC6948-3, fVCO = 5.0GHz, 10kHz Offset
fRF = 1.25GHz, OD[2 :0] = 4 (Note 6))
1MHz Offset
40MHz Offset
VCO Phase Noise (LTC6948-3, fVCO = 5.0GHz, 10kHz Offset
fRF = 1.00GHz, OD[2 :0] = 5 (Note 6))
1MHz Offset
40MHz Offset
VCO Phase Noise (LTC6948-3, fVCO = 5.0GHz, 10kHz Offset
fRF = 0.833GHz, OD[2 :0] = 6 (Note 6))
1MHz Offset
40MHz Offset
TYP
70.4
81.1
91.3
109.2
114.8
119.6
53
–80
–130
–157
–77
–127
–156
–75
–126
–155
–73
–123
–154
–81
–132
–155
–84
–135
–156
–87
–138
–156
–89
–140
–157
–90
–141
–158
MAX UNITS
80
mA
95
mA
105
mA
125
mA
135
mA
140
mA
250
µA
dBc/Hz
dBc/Hz
dBc/Hz
dBc/Hz
dBc/Hz
dBc/Hz
dBc/Hz
dBc/Hz
dBc/Hz
dBc/Hz
dBc/Hz
dBc/Hz
dBc/Hz
dBc/Hz
dBc/Hz
dBc/Hz
dBc/Hz
dBc/Hz
dBc/Hz
dBc/Hz
dBc/Hz
dBc/Hz
dBc/Hz
dBc/Hz
dBc/Hz
dBc/Hz
dBc/Hz
LNORM(INT)
LNORM(FRAC)
L1/f
Integer Normalized In-Band Phase Noise
Floor
Fractional Normalized In-Band Phase Noise
Floor
Normalized In-Band 1/f Phase Noise
In-Band Phase Noise Floor
Integrated Phase Noise from 100Hz to
40MHz
Spurious
INTN = 1, ICP = 5.6mA (Notes 7, 8, 10)
INTN = 0, CPLE = 1, ICP = 5.6mA
(Notes 7, 8, 10)
ICP = 11.2mA (Notes 7, 11)
Fractional Mode, CPLE = 1
(Notes 7, 9, 10, 12)
Fractional Mode, CPLE = 1 (Notes 9, 12)
Fractional Mode, fOFFSET = fPFD, PLL locked
(Notes 8, 13, 14)
–226
dBc/Hz
–225
dBc/Hz
–274
dBc/Hz
–113
dBc/Hz
0.14
°RMS
–98
dBc
Note 1: Stresses beyond those listed under Absolute Maximum Ratings
may cause permanent damage to the device. Exposure to any Absolute
Maximum Rating condition for extended periods may affect device
reliability and lifetime.
Note 2: The LTC6948I is guaranteed to meet specified performance limits
over the full operating junction temperature range of –40°C to 105°C.
6948f
For more information www.linear.com/LTC6948
5
Share Link: