Datasheet > EVAL-ADF7021-VDB2Z

EVAL-ADF7021-VDB2Z

更新时间： 2022-12-16 16:06:45

品牌	Logo	应用领域
亚德诺 - ADI		/
页数	文件大小	规格书
60页	1552K
描述
HIgh Performance Narrow-Band Transceiver IC

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High Performance,

Narrow-Band Transceiver IC

ADF7021-V

On-chip fractional-N PLL

FEATURES

On-chip, 7-bit ADC and temperature sensor

Fully automatic frequency control (AFC) loop

Digital received signal strength indication (RSSI)

Integrated Tx/Rx switch

High performance, low power, narrow-band transceiver

Enhanced performance ADF7021-N with external VCO

Frequency bands using external VCO: 80 MHz to 960 MHz

Improved adjacent channel power (ACP) and adjacent

channel rejection (ACR) compared with the ADF7021-N

Programmable IF filter bandwidths: 9 kHz, 13.5 kHz,

and 18.5 kHz

Modulation schemes: 2FSK, 3FSK, 4FSK, MSK

Spectral shaping: Gaussian and raised cosine filtering

Data rates: 0.05 kbps to 24 kbps

Power supply: 2.3 V to 3.6 V

Programmable output power: −16 dBm to +13 dBm

in 63 steps

Automatic power amplifier (PA) ramp control

Receiver sensitivity

−125 dBm at 250 bps, 2FSK

Leakage current in power-down mode: 0.1 μA

APPLICATIONS

Narrow-band, short-range device (SRD) standards

ETSI EN 300 220

500 mW output power capability in 869 MHz g3 subband

with external PA

High performance receiver rejection, blocking, and

adjacent channel power (ACP)

FCC Part 90 (meets Emission Mask D requirements)

FCC Part 95

ARIB STD-T67

Wireless metering

Narrow-band wireless telemetry

−122 dBm at 1 kbps, 2FSK

Patent pending, on-chip image rejection calibration

FUNCTIONAL BLOCK DIAGRAM

CREG[1:4]

MUXOUT

RSET

TEMP

SENSOR

MUX

7-BIT ADC

LDO[1:4]

LNA

TEST MUX

2FSK

3FSK

4FSK

LNA

TxRxCLK

CLOCK

AND DATA

RECOVERY

RFIN

RSSI/

LOG AMP

Tx/Rx

CONTROL

TxRxDATA

IF FILTER

DEMODULATOR

SWD

GAIN

AGC

CONTROL

SLE

SDATA

SREAD

SCLK

SERIAL

PORT

ADF7021-V

AFC

CONTROL

PA RAMP

2FSK

3FSK

4FSK

GAUSSIAN/

RAISED COSINE

FILTER

Σ-Δ

MODULATOR

÷1/÷2

DIV P

N/N + 1

RFOUT

MOD CONTROL

÷2

3FSK

ENCODING

BUFFER

PFD

CLK

DIV

DIV R

OSC

CPOUT

OSC1 OSC2

CLKOUT

Figure 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 registeredtrademarks arethe property of their respective owners.

One Technology Way, P.O. Box 9106, Norwood, MA 02062-9106, U.S.A.

Tel: 781.329.4700

Fax: 781.461.3113

www.analog.com

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