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ADF7021-VBCPZ

更新时间： 2024-11-25 06:36:19
品牌 Logo 应用领域
亚德诺 - ADI 电信集成电路蜂窝电话电路电信电路
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  
CE  
CREG[1:4]  
MUXOUT  
RSET  
TEMP  
SENSOR  
MUX  
7-BIT ADC  
R
LDO[1:4]  
LNA  
TEST MUX  
2FSK  
3FSK  
4FSK  
LNA  
TxRxCLK  
CLOCK  
AND DATA  
RECOVERY  
RFIN  
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  
CP  
PFD  
CLK  
DIV  
DIV R  
OSC  
L2  
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  
©2010 Analog Devices, Inc. All rights reserved.  
 
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