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LTC6946 数据表(PDF) 6 Page - Linear Technology

部件名 LTC6946
功能描述  Ultralow Noise and Spurious 0.37GHz to 5.7GHz Integer-N Synthesizer with Integrated VCO
PDF  30 Pages
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制造商  LINER [Linear Technology]
网页  http://www.linear.com
标志 LINER - Linear Technology

LTC6946 数据表(HTML) 6 Page - Linear Technology

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LTC6946
6
6946fa
TYPICAL PERFORMANCE CHARACTERISTICS
Charge Pump Sink Current Error
vs Voltage, Output Current
Charge Pump Source Current
Error vs Voltage, Temperature
Charge Pump Sink Current Error
vs Voltage, Temperature
RF Output Power vs Frequency
(Single Ended on RF–)
Charge Pump Source Current
Error vs Voltage, Output Current
RF Output HD2 vs Output Divide
(Single Ended on RF–)
REF Input Sensitivity
vs Frequency
REF0 Output Power vs Frequency
TC = 25°C, VREF+ = VREFO+ = VD+ = VRF+ = 3.3V, VCP+ = VVCO+ = 5V, RFO[1:0] = 3,unless otherwise noted.
REFO Phase Noise
FREQUENCY (MHz)
0
–15
–20
–25
–30
–35
–40
–45
–50
–55
200
6946 G01
50
100
150
250
175
25
75
125
225
BST = 1
FILT = 0
105°C
25°C
–40°C
FREQUENCY (MHz)
0
4
3
2
1
0
–1
–2
–3
–4
200
6946 G02
50
100
150
250
175
25
75
125
225
105°C
25°C
–40°C
OFFSET FREQUENCY (Hz)
–155
–150
–145
–140
100
10k
100k
1M
6946 G03
–160
1k
POUT = 1.45dBm
fREF = 10MHz
BST = 1
FILT = 3
NOTE 8
OUTPUT VOLTAGE (V)
0
1
3
5
4
6946 G04
–1
–3
0
2
4
–2
–4
–5
1
0.5
2
1.5
3
3.5
4.5
2.5
5
250μA
1mA
11.2mA
OUTPUT VOLTAGE (V)
0
1
3
5
4
6946 G05
–1
–3
0
2
4
–2
–4
–5
1
0.5
2
1.5
3
3.5
4.5
2.5
5
–40°C
25°C
105°C
ICP = 11.2mA
OUTPUT VOLTAGE (V)
0
1
3
5
4
6946 G06
–1
–3
0
2
4
–2
–4
–5
1
0.5
2
1.5
3
3.5
4.5
2.5
5
250μA
1mA
11.2mA
OUTPUT VOLTAGE (V)
0
1
3
5
4
6946 G07
–1
–3
0
2
4
–2
–4
–5
1
0.5
2
1.5
3
3.5
4.5
2.5
5
–40°C
25°C
105°C
ICP = 11.2mA
FREQUENCY (GHz)
0.5
–2.5
0.5
1.0
1.5
1.5
3.5
3
4 4.5
6946 G08
–3.5
–0.5
–1.5
–3.0
0
–4.0
–1.0
–2.0
1
2 2.5
5 5.5 6
–40°C
25°C
105°C
LTC6946-3
LC = 68nH
CS = 100pF
fVCO (GHz)
3.75
–50
–45
–40
–35
–30
4.25
4.75
5.25
5.75
6946 G09
–25
–20
4.00
4.50
5.00
5.50
LTC6946-3, fRF = fVCO/O
LC = 68nH, CS = 100pF
O = 3
O = 2
O = 1
O = 6
O = 4
O = 5



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