ADF7025 데이터 시트보기 (PDF) - Analog Devices
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ADF7025 Datasheet PDF : 44 Pages
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Parameter
Min
CHANNEL FILTERING
Adjacent Channel Rejection
(Offset = ±1 × LP Filter BW Setting)
Second Adjacent Channel Rejection
(Offset = ±2 × LP Filter BW Setting)
Third Adjacent Channel Rejection
(Offset = ±3 × LP Filter BW Setting)
Co-Channel Rejection
Wideband Interference Rejection
BLOCKING
±1 MHz
±2 MHz
±10 MHz
Saturation (Maximum Input Level)
LNA Input Impedance
RSSI
Range at Input
Linearity
Absolute Accuracy
Response Time
PHASE-LOCKED LOOP
VCO Gain
Phase Noise (In-Band)
Phase Noise (Out-of-Band)
Residual FM
PLL Settling Time
REFERENCE INPUT
Crystal Reference
External Oscillator
Load Capacitance
Crystal Start-Up Time
Input Level
TIMING INFORMATION
Chip Enabled to Regulator Ready
Crystal Oscillator Startup Time
Tx to Rx Turnaround Time
3.625
3.625
ADF7025
Typ
Max
27
40
43
−2
+24
70
42
51
64
12
24 − j60
26 − j63
71 − j128
−100 to
−36
±2
±3
150
65
83
−89
−110
128
40
24
24
33
1.0
10
1
150 µs +
(5 × TBIT)
Unit
dB
dB
dB
dB
dB
dB
dB
dB
dBm
Ω
Ω
Ω
dBm
dB
dB
µs
MHz/V
MHz/V
dBc/Hz
dBc/Hz
Hz
µs
MHz
MHz
pF
ms
CMOS
levels
µs
ms
Test Conditions
Desired signal (38.4 kbps DR, 200 kHz FDEV,
±300 KHz LP filter B/W) 6 dB above the
input sensitivity level, CW interferer power
level increased until BER = 10−3
Maximum rejection measured with CW
interferer at center of channel
Swept from 100 MHz to 2 GHz,
measured as channel rejection
Desired signal (38.4 kbps DR, 200 kHz FDEV,
±300 KHz LP filter B/W) 6 dB above the
input sensitivity level, CW interferer power
level increased until BER = 10−3
FSK mode, BER = 10−3
FRF = 915 MHz, RFIN to GND
FRF = 868 MHz
FRF = 433 MHz
902 MHz to 928 MHz band,
VCO adjust = 3, VCO_BIAS_SETTING = 12
862 MHz to 870 MHz band,
VCO adjust = 0, VCO_BIAS_SETTING = 10
PA = 0 dBm, VDD = 3.0 V, PFD = 10 MHz,
FRF = 868 MHz, VCO_BIAS_SETTING = 10
1 MHz offset
From 200 Hz to 20 kHz, FRF = 868MHz
Measured for a 10 MHz frequency step
to within 5 ppm accuracy,
PFD = 20 MHz, LBW = 50kHz
Using 33 pF load capacitors
CREG = 100 nF
With 19.2 MHz XTAL
Time to synchronized data,
includes AGC settling
Rev. A | Page 5 of 44
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