IEEE Solid-States Circuits Magazine - Fall 2022 - 46

Integer-N Frequency Synthesizer
The type-II third-order frequency synthesizer
uses a pulse-swallow integerN
frequency divider to further lower
VDD,A
the TX power consumption. A true single-phase
clock D flip-flop, a dynamic
logic gate, is used for the dual-modulus
prescalar, which directly interFrequency
Synthesizer
OOK
Modulator
Data Packet
PWM
fref
2 MHz PFD
Vcont
Rs
Cs
PA
Wire-Bonding
Boundary
Chip Board
faces with the VCO output in the
915-MHz band. The frequencies of the
other modules are too low to use a
dynamic logic gate. Instead, they use
VDD,PA
From dc-dc
Converter
Lchoke
Pad
VCO
Cp
DEN3
DEN2
÷ 450, 451, ..., 481
fin
÷ 16/15
÷ 2
÷ 2
D0
D1
Pulse-Swallow Divider
Dual-Modular
Prescalar
÷ 30
Program
Counter fout
Disable
÷ 2
D4
Vcont
VDD
VDD
VDD
Vout
DEN1
VCO
VDD
VDD
VDD
M1
M2
Cc
M3
Pad
Lmatch
Cpar
Parasitic
Cmatch
Antenna and
Matching Network
VDD
Modulus
Control
Q
S
R
Swallow
Counter
FIGURE 9: An FDMA TX schematic: 32 channels with 12 in the ISM band. (Source: [29]; used with permission.)
1,100
1,050
1,000
950
900
850
800
750
700
650
Reference:
0 dBm
Vdd,VCO = 0.95 V
Vdd,VCO = 1 V
Vdd,VCO = 1.05 V
Vdd,VCO = 1.1 V
PN at 1-MHz Offset:
-10
-20
-30
-40
-50
-60
-70
-80
-90
0 0.1 0.2 0.3 0.4 0.5 0.6 0.7 0.8 0.9 1
Vctrl (V)
(a)
Delta Marker
1 MHz
-34.89 dB
-34.89 dB - 10 log(100 kHz) = 84.89 dBc/Hz
Att
10 dB
Marker1 1 MHz -34.89 dB
Starting
User Key Set: System
886 MHz
Frequency
RBW
VBW 100 kHz
Starting
100 kHz10 ms
(b)
Frequency
SWT
FIGURE 10: VCO measurement: (a) VCO frequency tuning curves for discrete tuning with supply and continuous tuning with Vctrl and (b) the
phase noise. SWT: sweep time, RBW: resolution bandwidth, PN: phase noise; Vctrl: control voltage. (Source: [29]; used with permission.)
46
FALL 2022
IEEE SOLID-STATE CIRCUITS MAGAZINE
946 MHz
Frequency (MHz)

IEEE Solid-States Circuits Magazine - Fall 2022

Table of Contents for the Digital Edition of IEEE Solid-States Circuits Magazine - Fall 2022

Contents
IEEE Solid-States Circuits Magazine - Fall 2022 - Cover1
IEEE Solid-States Circuits Magazine - Fall 2022 - Cover2
IEEE Solid-States Circuits Magazine - Fall 2022 - Contents
IEEE Solid-States Circuits Magazine - Fall 2022 - 2
IEEE Solid-States Circuits Magazine - Fall 2022 - 3
IEEE Solid-States Circuits Magazine - Fall 2022 - 4
IEEE Solid-States Circuits Magazine - Fall 2022 - 5
IEEE Solid-States Circuits Magazine - Fall 2022 - 6
IEEE Solid-States Circuits Magazine - Fall 2022 - 7
IEEE Solid-States Circuits Magazine - Fall 2022 - 8
IEEE Solid-States Circuits Magazine - Fall 2022 - 9
IEEE Solid-States Circuits Magazine - Fall 2022 - 10
IEEE Solid-States Circuits Magazine - Fall 2022 - 11
IEEE Solid-States Circuits Magazine - Fall 2022 - 12
IEEE Solid-States Circuits Magazine - Fall 2022 - 13
IEEE Solid-States Circuits Magazine - Fall 2022 - 14
IEEE Solid-States Circuits Magazine - Fall 2022 - 15
IEEE Solid-States Circuits Magazine - Fall 2022 - 16
IEEE Solid-States Circuits Magazine - Fall 2022 - 17
IEEE Solid-States Circuits Magazine - Fall 2022 - 18
IEEE Solid-States Circuits Magazine - Fall 2022 - 19
IEEE Solid-States Circuits Magazine - Fall 2022 - 20
IEEE Solid-States Circuits Magazine - Fall 2022 - 21
IEEE Solid-States Circuits Magazine - Fall 2022 - 22
IEEE Solid-States Circuits Magazine - Fall 2022 - 23
IEEE Solid-States Circuits Magazine - Fall 2022 - 24
IEEE Solid-States Circuits Magazine - Fall 2022 - 25
IEEE Solid-States Circuits Magazine - Fall 2022 - 26
IEEE Solid-States Circuits Magazine - Fall 2022 - 27
IEEE Solid-States Circuits Magazine - Fall 2022 - 28
IEEE Solid-States Circuits Magazine - Fall 2022 - 29
IEEE Solid-States Circuits Magazine - Fall 2022 - 30
IEEE Solid-States Circuits Magazine - Fall 2022 - 31
IEEE Solid-States Circuits Magazine - Fall 2022 - 32
IEEE Solid-States Circuits Magazine - Fall 2022 - 33
IEEE Solid-States Circuits Magazine - Fall 2022 - 34
IEEE Solid-States Circuits Magazine - Fall 2022 - 35
IEEE Solid-States Circuits Magazine - Fall 2022 - 36
IEEE Solid-States Circuits Magazine - Fall 2022 - 37
IEEE Solid-States Circuits Magazine - Fall 2022 - 38
IEEE Solid-States Circuits Magazine - Fall 2022 - 39
IEEE Solid-States Circuits Magazine - Fall 2022 - 40
IEEE Solid-States Circuits Magazine - Fall 2022 - 41
IEEE Solid-States Circuits Magazine - Fall 2022 - 42
IEEE Solid-States Circuits Magazine - Fall 2022 - 43
IEEE Solid-States Circuits Magazine - Fall 2022 - 44
IEEE Solid-States Circuits Magazine - Fall 2022 - 45
IEEE Solid-States Circuits Magazine - Fall 2022 - 46
IEEE Solid-States Circuits Magazine - Fall 2022 - 47
IEEE Solid-States Circuits Magazine - Fall 2022 - 48
IEEE Solid-States Circuits Magazine - Fall 2022 - 49
IEEE Solid-States Circuits Magazine - Fall 2022 - 50
IEEE Solid-States Circuits Magazine - Fall 2022 - 51
IEEE Solid-States Circuits Magazine - Fall 2022 - 52
IEEE Solid-States Circuits Magazine - Fall 2022 - 53
IEEE Solid-States Circuits Magazine - Fall 2022 - 54
IEEE Solid-States Circuits Magazine - Fall 2022 - 55
IEEE Solid-States Circuits Magazine - Fall 2022 - 56
IEEE Solid-States Circuits Magazine - Fall 2022 - 57
IEEE Solid-States Circuits Magazine - Fall 2022 - 58
IEEE Solid-States Circuits Magazine - Fall 2022 - 59
IEEE Solid-States Circuits Magazine - Fall 2022 - 60
IEEE Solid-States Circuits Magazine - Fall 2022 - 61
IEEE Solid-States Circuits Magazine - Fall 2022 - 62
IEEE Solid-States Circuits Magazine - Fall 2022 - 63
IEEE Solid-States Circuits Magazine - Fall 2022 - 64
IEEE Solid-States Circuits Magazine - Fall 2022 - 65
IEEE Solid-States Circuits Magazine - Fall 2022 - 66
IEEE Solid-States Circuits Magazine - Fall 2022 - 67
IEEE Solid-States Circuits Magazine - Fall 2022 - 68
IEEE Solid-States Circuits Magazine - Fall 2022 - 69
IEEE Solid-States Circuits Magazine - Fall 2022 - 70
IEEE Solid-States Circuits Magazine - Fall 2022 - 71
IEEE Solid-States Circuits Magazine - Fall 2022 - 72
IEEE Solid-States Circuits Magazine - Fall 2022 - 73
IEEE Solid-States Circuits Magazine - Fall 2022 - 74
IEEE Solid-States Circuits Magazine - Fall 2022 - 75
IEEE Solid-States Circuits Magazine - Fall 2022 - 76
IEEE Solid-States Circuits Magazine - Fall 2022 - 77
IEEE Solid-States Circuits Magazine - Fall 2022 - 78
IEEE Solid-States Circuits Magazine - Fall 2022 - 79
IEEE Solid-States Circuits Magazine - Fall 2022 - 80
IEEE Solid-States Circuits Magazine - Fall 2022 - 81
IEEE Solid-States Circuits Magazine - Fall 2022 - 82
IEEE Solid-States Circuits Magazine - Fall 2022 - 83
IEEE Solid-States Circuits Magazine - Fall 2022 - 84
IEEE Solid-States Circuits Magazine - Fall 2022 - Cover3
IEEE Solid-States Circuits Magazine - Fall 2022 - Cover4
https://www.nxtbook.com/nxtbooks/ieee/mssc_fall2023
https://www.nxtbook.com/nxtbooks/ieee/mssc_summer2023
https://www.nxtbook.com/nxtbooks/ieee/mssc_spring2023
https://www.nxtbook.com/nxtbooks/ieee/mssc_winter2023
https://www.nxtbook.com/nxtbooks/ieee/mssc_fall2022
https://www.nxtbook.com/nxtbooks/ieee/mssc_summer2022
https://www.nxtbook.com/nxtbooks/ieee/mssc_spring2022
https://www.nxtbook.com/nxtbooks/ieee/mssc_winter2022
https://www.nxtbook.com/nxtbooks/ieee/mssc_fall2021
https://www.nxtbook.com/nxtbooks/ieee/mssc_summer2021
https://www.nxtbook.com/nxtbooks/ieee/mssc_spring2021
https://www.nxtbook.com/nxtbooks/ieee/mssc_winter2021
https://www.nxtbook.com/nxtbooks/ieee/mssc_fall2020
https://www.nxtbook.com/nxtbooks/ieee/mssc_summer2020
https://www.nxtbook.com/nxtbooks/ieee/mssc_spring2020
https://www.nxtbook.com/nxtbooks/ieee/mssc_winter2020
https://www.nxtbook.com/nxtbooks/ieee/mssc_fall2019
https://www.nxtbook.com/nxtbooks/ieee/mssc_summer2019
https://www.nxtbook.com/nxtbooks/ieee/mssc_2019summer
https://www.nxtbook.com/nxtbooks/ieee/mssc_2019winter
https://www.nxtbook.com/nxtbooks/ieee/mssc_2018fall
https://www.nxtbook.com/nxtbooks/ieee/mssc_2018summer
https://www.nxtbook.com/nxtbooks/ieee/mssc_2018spring
https://www.nxtbook.com/nxtbooks/ieee/mssc_2018winter
https://www.nxtbook.com/nxtbooks/ieee/solidstatecircuits_winter2017
https://www.nxtbook.com/nxtbooks/ieee/solidstatecircuits_fall2017
https://www.nxtbook.com/nxtbooks/ieee/solidstatecircuits_summer2017
https://www.nxtbook.com/nxtbooks/ieee/solidstatecircuits_spring2017
https://www.nxtbook.com/nxtbooks/ieee/solidstatecircuits_winter2016
https://www.nxtbook.com/nxtbooks/ieee/solidstatecircuits_fall2016
https://www.nxtbook.com/nxtbooks/ieee/solidstatecircuits_summer2016
https://www.nxtbook.com/nxtbooks/ieee/solidstatecircuits_spring2016
https://www.nxtbook.com/nxtbooks/ieee/solidstatecircuits_winter2015
https://www.nxtbook.com/nxtbooks/ieee/solidstatecircuits_fall2015
https://www.nxtbook.com/nxtbooks/ieee/solidstatecircuits_summer2015
https://www.nxtbook.com/nxtbooks/ieee/solidstatecircuits_spring2015
https://www.nxtbook.com/nxtbooks/ieee/solidstatecircuits_winter2014
https://www.nxtbook.com/nxtbooks/ieee/solidstatecircuits_fall2014
https://www.nxtbook.com/nxtbooks/ieee/solidstatecircuits_summer2014
https://www.nxtbook.com/nxtbooks/ieee/solidstatecircuits_spring2014
https://www.nxtbookmedia.com