IC
ADF7021-N
VCO
7 ADC
VCO
80 MHz 650 MHz
842 MHz 916 MHz
9 kHz 13.5 kHz 18.5 kHz
2FSK 3FSK 4FSK MSK
0.05 kbps 24 kbps
2.3 V
3.6 V
:
-16 dBm +13 dBm 63
PA
:
100 bps 2FSK −130 dBm
1 kbps 2FSK -122 dBm
N
AFC
RSSI
Tx/Rx
0.1 μA
PLL
SRD
ARIB STD-T67 ETSI EN 300 220
SRD
FCC Part 15 FCC Part 90 FCC Part 95
/
WMTS
RSET
TEMP
SENSOR
CE
CREG(1:4)
MUXOUT
R
LNA
MUX
7-BIT ADC
LDO(1:4)
TEST MUX
LNA
RFIN
RFINB
IF FILTER
RSSI/
LOG AMP
2FSK
3FSK
4FSK
DEMODULATOR
CLOCK
AND DATA
RECOVERY
TxRxCLK
Tx/Rx
CONTROL
TxRxDATA
SWD
GAIN
AGC
CONTROL
SERIAL
PORT
PA RAMP
AFC
CONTROL
SLE
SDATA
SREAD
SCLK
RFOUT
÷1/÷2
DIV P
÷2
N/N + 1
Σ
-Δ
MODULATOR
2FSK
3FSK
4FSK
MOD CONTROL
GAUSSIAN/
RAISED COSINE
FILTER
VCO1
MUX
VCO2
3FSK
ENCODING
CP
PFD
DIV R
OSC
CLK
DIV
07246-001
L1
L2
VCOIN
CPOUT
OSC1
OSC2
CLKOUT
1
Rev. 0
Information furnished by Analog Devices is believed to be accurate and reliable. However, no
responsibility is assumed by Analog Devices for its use, nor for any infringements of patents or other
rights of third parties that may result from its use. Specifications subject to change without notice. No
license is granted by implication or otherwise under any patent or patent rights of Analog Devices.
Trademarks and registered trademarks are the property of their respective owners.
ADI
ADI
One Technology Way, P.O. Box 9106, Norwood, MA 02062-9106, U.S.A.
Tel: 781.329.4700
www.analog.com
Fax: 781.461.3113
©2008 Analog Devices, Inc. All rights reserved.
ADI
ADF7021-N
1
1
1
2
3
4
RF PLL
4
5
6
9
10
11
12
15
ESD
15
16
18
22
22
MUXOUT
VCO
23
24
25
26
RF
26
28
29
29
29
30
RF
RSSI/AGC
30
30
30
LNA/PA
CDR
32
34
36
38
38
39
40
42
42
46
46
/DSP
0—N
1—VCO/
2—
3—
4—
5—
6—
7—
8—
9—AGC
10—AFC
11—
12—SWD/
13—3FSK/4FSK
14—
15—
DAC
/
48
49
50
51
52
53
54
55
56
57
58
59
60
60
61
62
63
64
64
2008
2
—
0:
Rev. 0 | Page 2 of 64
ADF7021-N
ADF7021-N
ADF7021
9 kHz 13.5 kHz 18.5 kHz
PLL ADF7021-N
VCO
−16 dBm
80
MHz
650
2.3 V
ARIB STD-T67
FCC Part 15 Part 90 Part 95
ETSI EN 300 220
ADF7021-N
ADF7021-N
9 kHz
(100 kHz)
13.5 kHz
18.5 kHz
3.6 V
+13 dBm
63
(FHSS)
12.5 kHz
ADF7021-N
ISM
MHz 842 MHz 916 MHz
FSK
ADF7021-N
2FSK
3FSK
4FSK
RF
ADC
RSSI
AFC
IR
56 dB
ADC
−40°C
±10°C
+85°C
1
PLL
<1 ppm
LC
421 MHz
VCO
VCO
VCO
VCO
N
PLL
VCO
458 MHz 842 MHz 916 MHz
80 MHz 650 MHz
Rev. 0 | Page 3 of 64
ADF7021-N
V
DD
= 2.3 V
3.6 V
GND = 0 V T
A
= T
MIN
EVAL-ADF7021-NDBxx
T
MAX
PN9
V
DD
= 3 V
T
A
= 25°C
RF
1
RF
PLL
VCO_BIAS VCO_ADJUST
160
842
80
421
RF/256
650
916
325
458
24
MHz
MHz
MHz
MHz
MHz
9
VCO
VCO
VCO
VCO
RF
PFD
PLL
2
VCO
868 MHz
426 MHz
426 MHz
160 MHz
1
RF
RF
VCO
VCO
VCO
VCO
VCO
VCO
VCO
67
45
27
6
−97
−103
−95
−124
MHz/V
MHz/V
MHz/V
MHz/V
dBc/Hz
dBc/Hz
dBc/Hz
dBc/Hz
dBc/Hz
μs
VCO_ADJUST = 0, VCO_BIAS = 8
VCO_ADJUST = 0, VCO_BIAS = 8
VCO_ADJUST = 0, VCO_BIAS = 3
VCO_ADJUST = 0, VCO_BIAS = 2
10 kHz
, PA = 10 dBm, V
DD
= 3.0 V,
PFD = 19.68 MHz, VCO_BIAS = 8
10 kHz
, PA = 10 dBm, V
DD
= 3.0 V,
PFD = 19.68 MHz, VCO_BIAS = 8
10 kHz
, PA = 10 dBm, V
DD
= 3.0 V,
PFD = 9.84 MHz, VCO_BIAS = 3
1 MHz
, f
RF
= 433 MHz, PA = 10 dBm,
V
DD
= 3.0 V, PFD = 19.68 MHz, VCO_BIAS = 8
10 MHz
PFD = 19.68 MHz
5 ppm
LBW = 100 kHz
868 MHz
433 MHz
426 MHz
3
PLL
−203
40
4
4, 5
6
3.625
3.625
0.930
0.438
7
24
24
MHz
MHz
ms
ms
V p-p
V
LSB
LSB
ADIsimPLL™
XTAL
XTAL
OSC1
OSC2
ADC
INL
DNL
1.
2.
3.
4.
5.
6.
7.
= 20 μA
= 35 μA
10 MHz XTAL
10 MHz XTAL
33 pF
33 pF
V
DD
= 3.0 V
V
DD
= 3.0 V
0.8
CMOS
±0.4
±0.4
PFD
0.7 V VCO
N
VCO
PA
V
DD
= 2.3 V 3.6 V, T
A
= 25°C
V
DD
= 2.3 V 3.6 V, T
A
= 25°C
RF
VCO
−203 + 10 log(f
PFD
) + 20 logN
TCXO VCXO OCXO
CE
CLKOUT
Rev. 0 | Page 4 of 64
ADF7021-N
2
2FSK, 3FSK
4FSK
(f
DEV
)
2
0.05
0.05
0.056
0.306
56
0.5
0.5/0.7
+13
±1
V
DD
±1
±1
0.3125
VCO
−50
18.5
1
24
28.26
156
kbps
kbps
kHz
kHz
Hz
IF_FILTER_BW = 18.5 kHz
IF_FILTER_BW = 18.5 kHz
PFD = 3.625 MHz
PFD = 20 MHz
PFD = 3.625 MHz
BT
Alpha
3
dBm
dB
dB
dB
dB
V
DD
= 3.0 V, T
A
= 25°C
−40°C +85°C
2.3 V 3.6 V at 915 MHz, T
A
= 25°C
902 MHz 928 MHz, 3 V, T
A
= 25°C
−16 dBm +13 dBm
PFD = 9.84 MHz
2FSK
2.4 kbps PN9
2FSK
9.6 kbps PN9
ACP
426 MHz
12.5 kHz
dBc
±4.25 kHz
1.2 kHz
±8 kHz
2.4 kHz
±12.5 kHz
ARIB STD-T67
±25 kHz
ARIB STD-T67
25 kHz
−50
dBc
868 MHz
12.5 kHz
VCO
−46
dBm
25 kHz
−43
dBm
433 MHz
12.5 kHz
VCO
−50
dBm
25 kHz
−47
dBm
OCCUPIED BANDWIDTH
PFD = 19.68 MHz
2FSK
10 dBm
±6.25 kHz
±12.5 kHz
2.4 kbps PN9
1.2 kHz
ETSI EN 300 220
2FSK
10 dBm
±12.5 kHz
±25 kHz
9.6 kbps PN9
2.4 kHz
ETSI EN 300 220
PFD = 19.68 MHz
2FSK
10 dBm
±6.25 kHz
±12.5 kHz
2.4 kbps PN9
1.2 kHz
ETSI EN 300 220
2FSK
10 dBm
±12.5 kHz
±25 kHz
9.6 kbps PN9
2.4 kHz
ETSI EN 300 220
99.0%
12.5 kHz
2.4 kbps PN9
1.2
kHz
25 kHz
9.6 kbps PN9
2.4 kHz
2FSK
12.5 kHz
25 kHz
2FSK
12.5 kHz
25 kHz
3FSK
12.5 kHz
25 kHz
4FSK
25 kHz
3.9
9.9
4.4
10.2
3.9
9.5
13.2
kHz
kHz
kHz
kHz
kHz
kHz
19.2 kbps PN9
kHz
Rev. 0 | Page 5 of 64
1.2 kHz
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