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零件编号
产品描述 (功能)
MAX7031 查看數據表(PDF) - Maxim Integrated
零件编号
产品描述 (功能)
生产厂家
MAX7031
Low-Cost, 308MHz, 315MHz, and 433.92MHz FSK Transceiver with Fractional-N PLL
Maxim Integrated
MAX7031 Datasheet PDF : 20 Pages
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Low-Cost, 308MHz, 315MHz, and 433.92MHz
FSK Transceiver with Fractional-N PLL
Functional Diagram
LNAOUT MIXIN+ MIXIN-
9
10 11
MIXOUT IFIN+ IFIN-
12
14
13
LNAIN 7
LNA
LNASRC 8
XTAL1 31
XTAL2 32
CRYSTAL
OSCILLATOR
HVIN 27
AVDD 6
3.0V
REGULATOR
EXPOSED
PAD
RX
FREQUENCY
DIVIDER
PHASE
DETECTOR
0
°
Σ
90
°
I
Q
RX VCO
IF LIMITING
AMPS
FSK
DEMODULATOR
RSSI
100k
Ω
100k
Ω
TX
FREQUENCY
DIVIDER
DATA FILTER
20 DF
19 OP+
21 RSSI
18 DS+
15 PDMIN
CHARGE
PUMP
LOOP FILTER
TX VCO
∆Σ
MODULATOR
16 PDMAX
17 DS-
RX
DATA
MAX7031
PA
DIGITAL LOGIC
30 AGC0
29 AGC1
28 AUTOCAL
24 DATA
2
ROUT
1
PAVDD
5
3
PAOUT TX/RX1
4
TX/RX2
22 26
23
T/R DVDD ENABLE
18 ______________________________________________________________________________________
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