1. Typical value determined from a sample size of 500 parts from 3 wafers.
2. Measurement obtained using production test board described in the block diagram below.
3. I) 900 MHz OIP
3
test condition: F1 = 900 MHz, F2 = 905 MHz and Pin = -25 dBm per tone.
II) 100 MHz OIP
3
test condition: F1 = 100 MHz, F2 = 105 MHz and Pin = -25 dBm per tone.
Input
50 Ohm
Transmission
(0.5 dB loss)
DUT
50 Ohm
Transmission
including Bias
(0.5 dB loss)
Output
Block diagram of 900 MHz production test board used for V
d
, Gain, P
1dB
, OIP
3
, and NF measurements.
Circuit losses have been de-embedded from actual measurements.
2
Product Consistency Distribution Charts at 900 MHz, I
d
= 35 mA
300
250
200
150
100
50
0
15
300
250
200
150
100
50
0
16
17
GAIN (dB)
18
19
3
3.2
3.4
V
d
(V)
3.6
3.8
4
Figure 1. Gain distribution @ 35 mA.
LSL=15.5, Nominal=17, USL=18.5
Figure 2. V
d
distribution @ 35 mA.
LSL = 3.2, Nominal = 3.5, USL = 3.9
Notes:
1. Statistics distribution determined from a sample size of 500 parts taken from 3 different wafers.
2. Future wafers allocated to this product may have typical values anywhere between the minimum and maximum specification limits.
ADA-4643 Typical Performance Curves
(at 25°C, unless specified otherwise)
20
20
30
15
P
1dB
(dBm)
GAIN (dB)
15
OIP
3
(dBm)
25
20
10
10
15
5
5
10
0
0
1
2
3
4
5
6
FREQUENCY (GHz)
0
0
1
2
3
4
5
6
FREQUENCY (GHz)
5
0
1
2
3
4
5
6
FREQUENCY (GHz)
Figure 3. Gain vs. Frequency at Id = 35 mA.
Figure 4. P1dB vs. Frequency at Id =35 mA.
Figure 5. OIP3 vs. Frequency at Id = 35 mA.
6
70
60
18
17
16
GAIN (dB)
5
NF (dB)
Id (mA)
50
-40°C
40
30
20
10
25°C
85°C
4
15
-40°C
14
25°C
85°C
3
13
12
0
1
2
Vd (V)
3
4
5
0
10
20
30
40
50
2
0
1
2
3
4
5
6
FREQUENCY (GHz)
0
60
70
Id (mA)
Figure 6. NF vs. Frequency at Id =35 mA.
Figure 7. Id vs. Vd and Temperature.
Figure 8. Gain vs. Id and Temperature at 900 MHz.
3
ADA-4643 Typical Performance Curves
(at 25°C, unless specified otherwise)
, continued
20
15
10
35
30
25
16
5
4
P1dB (dBm)
OIP3 (dBm)
5
-40°C
0
-5
-10
0
10
20
30
40
50
60
70
Id (mA)
25°C
85°C
NF (dB)
20
-40°C
15
10
5
0
10
20
30
40
50
60
70
Id (mA)
25°C
85°C
3
-40°C
2
1
0
0
10
20
30
40
50
60
70
Id (mA)
25°C
85°C
Figure 9. P1dB vs. Id and Temperature
at 900 MHz.
20
18
16
0.1
0.5
0.9
1.5
2.0
2.5
3
4
5
Figure 10. OIP3 vs. Id and Temperature
at 900 MHz.
25
20
15
0.1
0.5
0.9
1.5
2.0
2.5
3
4
5
6
Figure 11. NF vs. Id and Temperature
at 900 MHz.
40
35
30
0.1
0.5
0.9
1.5
10
5
0
-5
-10
OIP
3
(dBm)
P
1dB
(dBm)
GAIN (dB)
25
20
15
10
5
14
12
10
8
0
10
20
30
30
30
30
2.0
2.5
3
4
5
6
6
40
0
10
20
30
40
50
60
70
0
10
20
30
40
50
60
70
Id (mA)
Id (mA)
Id (mA)
Figure 12. Gain vs. Id and Frequency (GHz).
Figure 13. P1dB vs. Id and Frequency (GHz).
Figure 14. OIP3 vs. Id and Frequency (GHz).
6
5.5
5
6
5
0
Id = 27 mA
Id = 35 mA
Id = 45 mA
Id = 60 mA
0
-5
-5
4.5
4
3.5
3
0
10
20
30
40
50
60
-10
ORL (dB)
IRL (dB)
NF (dB)
4
3
2.5
2.0
1.5
0.9
0.5
0.1
-10
-15
-15
-20
Id = 27 mA
Id = 3 5 mA
Id = 45 mA
Id = 60 mA
-20
70
0
2
4
6
8
10
12
Id (mA)
FREQUENCY (GHz)
-25
0
2
4
6
8
10
12
FREQUENCY (GHz)
Figure 15. NF vs. Id and Frequency (GHz).
Figure 16. Input Return Loss vs. Id
and Frequency (GHz).
Figure 17. Output Return Loss vs. Id
and Frequency (GHz).
4
ADA-4643 Typical Scattering Parameters,
T
A
= 25°C, I
d
= 27 mA
Freq.
GHz
0.1
0.5
0.9
1.0
1.5
1.9
2.0
2.5
3.0
3.5
4.0
4.5
5.0
5.5
6.0
6.5
7.0
7.5
8.0
8.5
9.0
9.5
10.0
S
11
Mag.
0.172
0.202
0.277
0.286
0.349
0.375
0.382
0.397
0.402
0.394
0.378
0.361
0.340
0.328
0.318
0.299
0.274
0.243
0.222
0.226
0.26
0.305
0.356
Ang.
1.1
10
12.3
9.9
-2.8
-11.3
-13.8
-24.2
-34.7
-46
-58.7
-73.1
-89.3
-107.1
-124.8
-141.1
-159.7
177.3
148.7
119.9
95.4
75.2
60.1
dB
17.2
17.04
16.67
16.56
15.98
15.54
15.44
14.93
14.47
14.02
13.58
13.16
12.64
12.15
11.6
11.09
10.56
9.96
9.29
8.41
7.62
6.67
5.82
S
21
Mag.
7.246
7.113
6.814
6.726
6.292
5.984
5.918
5.581
5.29
5.021
4.775
4.55
4.284
4.05
3.803
3.584
3.371
3.149
2.914
2.632
2.406
2.155
1.954
S
12
Ang.
175.9
160.2
144.7
141.1
124.2
111.4
108.3
93.2
78.6
64.2
50
35.9
21.9
8.3
-5.4
-18.6
-32
-45.6
-59.1
-71.8
-83.7
-96.1
-107.1
S
22
Ang.
-0.8
-4.5
-7.4
-7.9
-9.3
-9.5
-9.5
-8.9
-7.8
-6.6
-5.4
-4.6
-4.9
-5.9
-8.3
-11.5
-16.5
-22.8
-30
-36.7
-43
-49.9
-57.3
K
Ang.
-4.1
-12.6
-20.4
-23.1
-37.6
-48.9
-51.7
-65.8
-81.7
-100.9
-123.8
-148.6
-169.9
173.3
158.2
141.6
123
103.6
84.8
70.1
58.4
48.4
39.7
1.1
1.1
1.1
1.1
1.1
1.2
1.2
1.2
1.3
1.3
1.3
1.3
1.3
1.2
1.2
1.1
1.1
1.1
1.1
1.1
1.1
1.1
1
Mag.
0.093
0.091
0.088
0.087
0.083
0.080
0.08
0.078
0.078
0.079
0.082
0.087
0.094
0.102
0.112
0.124
0.138
0.150
0.161
0.168
0.177
0.187
0.195
Mag.
0.245
0.245
0.269
0.274
0.28
0.273
0.271
0.249
0.22
0.192
0.176
0.179
0.191
0.212
0.233
0.25
0.27
0.3
0.337
0.381
0.429
0.481
0.529
Notes:
1. S-parameters are measured on a microstrip line made on 0.025 inch thick alumina carrier. The input reference plane is at the end of the input lead. The
output reference plane is at the end of the output lead.
[size=4]Impedance matching is a common concept in high-frequency design. This article provides a relatively good analysis of this "impedance matching". It answers what impedance matching is. Impedance...
There are two types of head installation: C type and CS type. Both have 1 inch 32 threads and a diameter of 1 inch. The difference is the distance between the lens and the CCD target surface. The dist...
I upgraded the BSP from 4.2 to 5.0. After the CPU goes to sleep (about 20ma current), if it sleeps for dozens of seconds and then wakes up, there is no problem. If it wakes up after sleeping for one m...
I've been debugging a color screen these days. Haha, now that it's done, I'll play whack-a-mole. Hehe! Every time the score increases by 100, the speed will increase by one level. Color screen resolut...
[i=s]This post was last edited by yang_alex on 2019-8-3 18:30[/i][CH549 Review] Part 4 Low-Level Driver Software Review - Touch Button DriverIn the previous post "Comparison and Evaluation of Low-Leve...
If the ultimate form of a car is a silicon-based life form, then in
the field of
intelligent driving
, it has gradually taken on the appearance of a "veteran driver." In
the field of
the ...[Details]
introduction
Bluetooth technology is a short-range wireless communication technology designed to replace wired cables. It is a wireless communication technology standard developed by the SIG, ...[Details]
Ever since the Tesla fire incident, electric cars, already known for their poor reputation, have been subjected to even more scathing criticism. Despite this, many people are still willing to buy t...[Details]
In recent years, the government has increasingly supported electric vehicles, and the number of electric vehicles has increased. Observant drivers will notice that there are many more green license...[Details]
Current Development Status of DVR Market
A DVR, or digital video recorder, uses a hard disk for recording, unlike traditional analog video recorders. It's often called a DVR because it's a com...[Details]
Capable of providing precise and efficient thermal management for artificial intelligence computing power, intelligent sensing and autonomous driving systems
Shenzhen, ...[Details]
On August 20th, Tiantai Robotics Co., Ltd., along with strategic partners including Shandong Future Robotics Technology Co., Ltd., Shandong Future Data Technology Co., Ltd., and Gangzai Robotics Gr...[Details]
Electric vehicles are powered by electricity, and charging is a device that supplements the vehicle's energy source. It is common to need to recharge the vehicle when driving. But can you charge th...[Details]
1. Multi-channel DAC technology bottleneck
Currently,
the development of multi-channel DAC technology focuses on two core challenges.
First, industrial applications urgently ...[Details]
Over the past decade, the narrative surrounding fuel vehicles has been one of decline and replacement. Under the onslaught of new energy vehicles, traditional automakers have been forced to acceler...[Details]
A tubular motor is an electric motor that is typically used to control the movement of machines and equipment. Tubular motors are generally divided into two categories: linear tubular motors and ro...[Details]
A scale, a large, ground-mounted scale, is typically used to measure the tonnage of truck cargo. It's the primary weighing device used in factories, mines, and businesses for bulk cargo measurement...[Details]
There are more and more electric vehicles. Recently, I have heard some news about electric vehicles performing poorly in winter. I would like to briefly introduce whether heat pump technology is mo...[Details]
Charging is an essential topic for electric vehicles. Batteries are a core component of new energy vehicles. So, what's the optimal charge level for electric vehicles? Based on current battery tech...[Details]
For self-driving cars, LiDAR is the sensory organ that allows them to "see the road." Simply put, its operating principle involves sending out a laser beam, receiving the echo, and ultimately gener...[Details]