ADF7021 datasheet(6/64 Pages) AD

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ADF7021

Data Sheet

Rev. B | Page 6 of 64

TRANSMISSION SPECIFICATIONS

Table 2.

Parameter

Min

Typ

Max

Unit

Test Conditions/Comments

DATA RATE

2FSK, 3FSK

0.05

251

kbps

IF_BW = 25 kHz

4FSK

0.05

32.82

kbps

IF_BW = 25 kHz

MODULATION

Frequency Deviation (fDEV)3

0.056

28.26

kHz

PFD = 3.625 MHz

0.306

156

kHz

PFD = 20 MHz

Deviation Frequency Resolution

PFD = 3.625 MHz

Gaussian Filter BT

0.5

Raised Cosine Filter Alpha

0.5/0.7

Programmable

TRANSMIT POWER

Maximum Transmit Power4

+13

dBm

VDD = 3.0 V, TA = 25°C

Transmit Power Variation vs.

Temperature

±1

−40°C to +85°C

Transmit Power Variation vs. VDD

±1

2.3 V to 3.6 V at 915 MHz, TA = 25°C

Transmit Power Flatness

±1

902 MHz to 928 MHz, 3 V, TA = 25°C

Programmable Step Size

0.3125

−20 dBm to +13 dBm

ADJACENT CHANNEL POWER (ACP)

426 MHz, External Inductor VCO

PFD = 9.84 MHz

12.5 kHz Channel Spacing

−50

dBc

Gaussian 2FSK modulation, measured in a ±4.25 kHz bandwidth

at ±12.5 kHz offset, 2.4 kbps PN9 data, 1.2 kHz frequency deviation,

compliant with ARIB STD-T67

25 kHz Channel Spacing

−50

dBc

Gaussian 2FSK modulation, measured in a ±8 kHz bandwidth at

±25 kHz offset, 9.6 kbps PN9 data, 2.4 kHz frequency deviation,

compliant with ARIB STD-T67

868 MHz, Internal Inductor VCO

PFD = 19.68 MHz

12.5 kHz Channel Spacing

−46

dBm

Gaussian 2FSK modulation, 10 dBm output power, measured in

a ±6.25 kHz bandwidth at ±12.5 kHz offset, 2.4 kbps PN9 data,

1.2 kHz frequency deviation, compliant with ETSI EN 300-220

25 kHz Channel Spacing

−43

dBm

Gaussian 2FSK modulation, 10 dBm output power, measured in

a ±12.5 kHz bandwidth at ±25 kHz offset, 9.6 kbps PN9 data,

2.4 kHz frequency deviation, compliant with ETSI EN 300-220

433 MHz, Internal Inductor VCO

PFD = 19.68 MHz

12.5 kHz Channel Spacing

−50

dBm

Gaussian 2FSK modulation, 10 dBm output power, measured in

a ±6.25 kHz bandwidth at ±12.5 kHz offset, 2.4 kbps PN9 data,

1.2 kHz frequency deviation, compliant with ETSI EN 300-220

25 kHz Channel Spacing

−47

dBm

Gaussian 2FSK modulation, 10 dBm output power, measured in

a ±12.5 kHz bandwidth at ±25 kHz offset, 9.6 kbps PN9 data,

2.4 kHz frequency deviation, compliant with ETSI EN 300-220

OCCUPIED BANDWIDTH

99.0% of total mean power; 12.5 kHz channel spacing (2.4 kbps

PN9 data, 1.2 kHz frequency deviation); 25 kHz channel spacing

(9.6 kbps PN9 data, 2.4 kHz frequency deviation)

2FSK Gaussian Data Filtering

12.5 kHz Channel Spacing

3.9

kHz

25 kHz Channel Spacing

9.9

kHz

2FSK Raised Cosine Data Filtering

12.5 kHz Channel Spacing

4.4

kHz

25 kHz Channel Spacing

10.2

kHz

3FSK Raised Cosine Filtering

12.5 kHz Channel Spacing

3.9

kHz

25 kHz Channel Spacing

9.5

kHz

4FSK Raised Cosine Filtering

19.2 kbps PN9 data, 1.2 kHz frequency deviation

25 kHz Channel Spacing

13.2

kHz

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