Datasheet
LMK03000, LMK03000C, LMK03000D, LMK03001
LMK03001C, LMK03001D, LMK03033, LMK03033C
www.ti.com
SNAS381O –NOVEMBER 2006–REVISED MARCH 2013
3.4 Electrical Characteristics
(1)
(3.15 V ≤ Vcc ≤ 3.45 V, -40 °C ≤ T
A
≤ 85 °C, Differential Inputs/Outputs; Vboost=0; except as specified. Typical values
represent most likely parametric norms at Vcc = 3.3 V, T
A
= 25 °C, and at the Recommended Operation Conditions at the
time of product characterization and are not ensured).
Symbol Parameter Conditions Min Typ Max Units
Current Consumption
Entire device; one LVDS and one
LVPECL clock enabled; no divide; no 161.8
delay.
I
CC
Power Supply Current
(2)
mA
Entire device; All Outputs Off (no
86
emitter resistors placed)
I
CC
PD Power Down Current POWERDOWN = 1 1 mA
Reference Oscillator
Reference Oscillator Input Frequency
f
OSCin
square 1 200 MHz
Range for Square Wave
AC coupled; Differential (V
OD
)
Square Wave Input Voltage for OSCin
V
OSCin
square 0.2 1.6 Vpp
and OSCin*
PLL
f
PD
Phase Detector Frequency 40 MHz
V
CPout
= Vcc/2, PLL_CP_GAIN = 1x 100
V
CPout
= Vcc/2, PLL_CP_GAIN = 4x 400
I
SRCE
CPout Charge Pump Source Current µA
V
CPout
= Vcc/2, PLL_CP_GAIN = 16x 1600
V
CPout
= Vcc/2, PLL_CP_GAIN = 32x 3200
V
CPout
= Vcc/2, PLL_CP_GAIN = 1x -100
V
CPout
= Vcc/2, PLL_CP_GAIN = 4x -400
I
SINK
CPout Charge Pump Sink Current µA
V
CPout
= Vcc/2, PLL_CP_GAIN = 16x -1600
V
CPout
= Vcc/2, PLL_CP_GAIN = 32x -3200
I
CPout
TRI Charge Pump TRI-STATE Current 0.5 V < V
CPout
< Vcc - 0.5 V 2 10 nA
Magnitude of Charge Pump V
CPout
= Vcc / 2
I
CPout
%MIS 3 %
Sink vs. Source Current Mismatch T
A
= 25°C
Magnitude of Charge Pump
0.5 V < V
CPout
< Vcc - 0.5 V
I
CPout
VTUNE Current vs. Charge Pump Voltage 4 %
T
A
= 25°C
Variation
Magnitude of Charge Pump Current vs.
I
CPout
TEMP 4 %
Temperature Variation
PLL_CP_GAIN = 1x -117
PLL 1/f Noise at 10 kHz Offset
(3)
PN10kHz dBc/Hz
Normalized to 1 GHz Output Frequency
PLL_CP_GAIN = 32x -122
PLL_CP_GAIN = 1x -219
Normalized Phase Noise Contribution
PN1Hz dBc/Hz
(4)
PLL_CP_GAIN = 32x -224
(1) The Electrical Characteristics table lists ensured specifications under the listed Recommended Operating Conditions except as
otherwise modified or specified by the Electrical Characteristics Conditions and/or Notes. Typical specifications are estimations only and
are not ensured.
(2) See Section 8.5 for more current consumption / power dissipation calculation information.
(3) A specification in modeling PLL in-band phase noise is the 1/f flicker noise, L
PLL_flicker
(f), which is dominant close to the carrier. Flicker
noise has a 10 dB/decade slope. PN10kHz is normalized to a 10 kHz offset and a 1 GHz carrier frequency. PN10kHz = L
PLL_flicker
(10
kHz) - 20log(Fout / 1 GHz), where L
PLL_flicker
(f) is the single side band phase noise of only the flicker noise's contribution to total noise,
L(f). To measure L
PLL_flicker
(f) it is important to be on the 10 dB/decade slope close to the carrier. A high compare frequency and a clean
crystal are important to isolating this noise source from the total phase noise, L(f). L
PLL_flicker
(f) can be masked by the reference
oscillator performance if a low power or noisy source is used. The total PLL inband phase noise performance is the sum of L
PLL_flicker
(f)
and L
PLL_flat
(f).
(4) A specification in modeling PLL in-band phase noise is the Normalized Phase Noise Contribution, L
PLL_flat
(f), of the PLL and is defined
as PN1Hz = L
PLL_flat
(f) – 20log(N) – 10log(f
COMP
). L
PLL_flat
(f) is the single side band phase noise measured at an offset frequency, f, in a
1 Hz Bandwidth and f
COMP
is the phase detector frequency of the synthesizer. L
PLL_flat
(f) contributes to the total noise, L(f). To measure
L
PLL_flat
(f) the offset frequency, f, must be chosen sufficiently smaller then the loop bandwidth of the PLL, and yet large enough to avoid
a substantial noise contribution from the reference and flicker noise. L
PLL_flat
(f) can be masked by the reference oscillator performance if
a low power or noisy source is used.
Copyright © 2006–2013, Texas Instruments Incorporated Electrical Specifications 7
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