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LTC6946 датащи(PDF) 8 Page - Linear Technology

номер детали LTC6946
подробное описание детали  Ultralow Noise and Spurious 0.37GHz to 5.7GHz Integer-N Synthesizer with Integrated VCO
PDF  30 Pages
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производитель  LINER [Linear Technology]
домашняя страница  http://www.linear.com
Logo LINER - Linear Technology

LTC6946 датащи(HTML) 8 Page - Linear Technology

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LTC6946
8
6946fa
LTC6946-1 VCO Phase Noise vs fVCO,
Output Divide (fOFFSET = 1MHz)
Closed-Loop Phase Noise, Loop
Bandwidth = 40kHz, LTC6946-1
LTC6946-1 VCO Phase Noise vs fVCO,
Output Divide (fOFFSET = 10kHz)
LTC6946-2 VCO Phase Noise vs fVCO,
Output Divide (fOFFSET = 10kHz)
LTC6946-2 VCO Phase Noise vs fVCO,
Output Divide (fOFFSET = 1MHz)
Closed-Loop Phase Noise, Loop
Bandwidth = 25kHz, LTC6946-3
LTC6946-3 VCO Phase Noise vs fVCO,
Output Divide (fOFFSET = 10kHz)
LTC6946-3 VCO Phase Noise vs fVCO,
Output Divide (fOFFSET = 1MHz)
LTC6946-2 Supply Current
vs Temperature
TYPICAL PERFORMANCE CHARACTERISTICS
TC = 25°C, VREF+ = VREFO+ = VD+ = VRF+ = 3.3V, VCP+ = VVCO+ = 5V, RFO[1:0] = 3,unless otherwise noted.
fVCO (MHz)
2200
–105
–100
–95
–90
–85
–75
2450
2700
2950
3200
6946 G19
3450
3700
–80
fRF = fVCO/O
O = 1
O = 2
O = 3
O = 6
O = 5
O = 4
fVCO (MHz)
3000
–100
–95
–90
–85
–80
–70
3250 3500 3750 4000 4250
6946 G20
4500 4750
–75
fRF = fVCO/O
O = 1
O = 2
O = 3
O = 6
O = 5
O = 4
fVCO (MHz)
3800
–80
–75
–70
4550
5050
5800
6946 G21
–85
–90
–95
4050 4300
4800
5300 5550
fRF = fVCO/O
O = 1
O = 2
O = 3
O = 4
O = 6
O = 5
fVCO (MHz)
2200
–150
–145
–140
–135
–125
2450
2700
2950
3200
6946 G22
3450
3700
–130
fRF = fVCO/O
O = 1
O = 2
O = 3
O = 6
O = 4
O = 5
fVCO (MHz)
3000
–150
–145
–140
–135
–125
3250 3500 3750 4000 4250
6946 G23
4500 4750
–130
fRF = fVCO/O
fOFFSET = 1MHz
O = 1
O = 2
O = 3
O = 6
O = 5
O = 4
fVCO (MHz)
3800
–130
–125
–120
4550
5050
5800
6946 G24
–135
–140
–145
4050 4300
4800
5300 5550
fRF = fVCO/O
O = 1
O = 2
O = 3
O = 4
O = 6
O = 5
OFFSET FREQUENCY (Hz)
–140
–130
–110
–90
100
10k
100k
10M 40M
6946 G25
–150
1k
1M
–100
–120
–160
RMS NOISE = 0.169°
fRF = 900MHz
fPFD = 1MHz
OD = 3
fSTEP = 333.3kHz
NOTE 12
OFFSET FREQUENCY (Hz)
–140
–130
–110
–90
100
10k
100k
10M 40M
6946 G26
–150
1k
1M
–100
–120
–160
RMS NOISE = 0.276°
fRF = 900MHz
fPFD = 250kHz
OD = 5
fSTEP = 50kHz
NOTE 11
TC (°C)
–40
80
82
84
86
–20
0
20
40
6946 G27
60
88
90
81
83
85
87
89
45
47
49
51
53
55
46
48
50
52
54
80
100
PDREFO = 1
O = 1
RFO = 3
MUTE = 0
ICP = 11.2mA



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