Smart meters also come with monitors, so you can better understand your energy usage. Smart meters are composed of three major blocks of circuits which may be integrated into a SoC or incorporated into the device as separate modules. The purposes of these modules are: 1) Measurement 2) Communication 3) User interaction

EXAMPLES OF TYPICAL SOLUTION ICs FOR METERING:

Texas Instruments – MSP430F6736
32.000 kHz crystal
Texas Instruments – MSP430F677x/MSP430F67641
32.768 kHz crystal
STMicroelectronics – ST7570
8 MHz crystal
Teridian Semiconductor Corporation – 71M6515H
32.768 kHz crystal
Analog Devices – ADE7854/ADE7858/ADE7868/ADE7878
16.384 MHz crystal

kHz Crystals

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32.768
6.9 x 1.4
4
32.768
8.0 x 3.8
4
32.768
2.0 x 1.2
2
32.768
3.2 x 1.5
2

MHz Crystals

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24~60
1.6 x 1.2
4
16~72
2.0 x 1.6
4
12~80
2.5 x 2.0
4
8~156.25
3.2 x 2.5
4

RCA Chip Antennas

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Frequency (MHz)
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BLUETOOTH: 2450±50
2.0
5.2 x 2 x 1.1
BLUETOOTH: 2400~2483.5
2
3.1 x 1.6 x 0.6
BLUETOOTH: 2400~2500
2
9.5 x 2.1 x 1.2
BLUETOOTH: 2400~2500
2
8 x 1.1 x 0.8
BLUETOOTH: 2450/5250/5850
4
5.9 x 5.1 x 1.1
BLUETOOTH: 2450/5250/5850
4 (Peak)
5.9 x 5.1 x 1.1
BLUETOOTH: 2450±50
2
3.2 x 1.6 x 1.2

RST Stub Antennas

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ECAD
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Frequency (MHz)
Gain (dBi)
Size (mm)
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2400~2483
2
190
698~960 / 1710~2700
3.0 4.0
200 x 20
698~960 / 1710~2700
4.0 6.0
370 x 63
824~960 / 1710~2700
3
157 x 21 + 13
2400~2500 / 5100~5900
4.0 6.0
Ø 8 200
2400~2483
3
105
2400~2483
3
105
2400~2483
4.15
110
2400~2500 / 5150 ~5725
1.5
87.5 x 7.8 + 20.5 x 10
2400~2500
5
Ø 8 200
4900~5900
5
Ø 8 200
2400~2483
2.15
Ø 8 116
2400~2500
2
30.3 x 7.8
2400 ±100 / 5800 ±100
3
87.2 x 8 + 17.1 x 8

SAW Filters

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Frequency (MHz)
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2442
1.1 x 0.9
WIFI
79000
1.3
2.4
2442
1.1 x 0.9
WIFI
79000
2.0
2.3
2442
1.4 x 1.1
Wireless Communication
78000
1.5
1.8
2442
1.1 x 0.9
WIFI
79000
1.8
2.2
2593
1.4 x 1.1
LTE
194000
3.0
3.5
2593
1.1 x 0.9
LTE
194000
2.5
3.2
2593
1.1 x 0.9
LTE
200000
2.3
3.2
2595
1.1 x 0.9
LTE
120000
1.8
2.4
2595
1.1 x 0.9
LTE
120000
2.1
2.8
2603
1.1 x 0.9
LTE
100000
2.3
3.0
2605
1.1 x 0.9
LTE
140000
2.0
2.5
2605
1.1 x 0.9
LTE
100000
2.2
3.0
2605
1.1 x 0.9
LTE
140000
2.0
2.5
2655
1.1 x 0.9
LTE
70000
2.0
2.5
2655
1.1 x 0.9
LTE
70000
2.4
3.2
2655
1.1 x 0.9
LTE
70000
2.0
3.2
2655
1.1 x 0.9
LTE
70000
2.4
3.2
1 5 6

Temperature Compensated Oscillators

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19.2~52
1.6 x 1.2
CLIPPED SINE
CMOS
19.2~52
1.6 x 1.2
CLIPPED SINE
13~52
2.0 x 1.6
CLIPPED SINE
CMOS
13~52
2.0 x 1.6
CLIPPED SINE
13~52
2.5 x 2.0
CLIPPED SINE
CMOS
13~52
2.5 x 2.0
CLIPPED SINE
10~52
3.2 x 2.5
CLIPPED SINE
10~52
3.2 x 2.5
CLIPPED SINE
CMOS
13~52
5.0 x 3.2
CLIPPED SINE
13~52
5.0 x 3.2
CLIPPED SINE
CMOS
10~20
11.4 x 9.6
CLIPPED SINE
CMOS
10~20
11.4 x 9.6
CLIPPED SINE
CMOS
10~20
11.4 x 9.6
CLIPPED SINE
CMOS
10~20
11.4 x 9.6
CLIPPED SINE
CMOS
9.6~45
18.3 x 11.7
CLIPPED SINE
CMOS
9.6~45
18.3 x 11.7
CLIPPED SINE
CMOS
1.5~100
20.8 x 13.2
CLIPPED SINE
CMOS
1.5~100
20.8 x 13.2
CLIPPED SINE
CMOS
1~155.52
25.4 x 25.4
CLIPPED SINE
CMOS
PECL
1~155.52
25.4 x 25.4
CLIPPED SINE
CMOS
PECL

Stratum III TCXOs

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10~52
5.0 x 3.2
CLIPPED SINE
CMOS
3.3
10~52
5.0 x 3.2
CLIPPED SINE
CMOS
3.3
10~52
7.0 x 5.0
CLIPPED SINE
CMOS
3.3
10~52
7.0 x 5.0
CLIPPED SINE
CMOS
3.3