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MAX7031MATJ50+

P1-P3P4-P6P7-P9P10-P12P13-P15P16-P18P19-P20
MAX7031
Low-Cost, 308MHz, 315MHz, and 433.92MHz
FSK Transceiver with Fractional-N PLL
16 ______________________________________________________________________________________
1
2
3
4
5
6
7
8
C8
L3
C6
910
11
C10
C12
C9
12
L5
C11
13
IN OUTGND
14
15
16
Y2
C13
17
18
19
20
21
22
23
24
C17
R1
25262728293032 31
AGC1
AGC0
MAX7031
3.0V
C23
V
DD
V
DD
PAVDD
ROUT
TX/RX1
TX/RX2
PAOUT
AVDD
LNAIN
LNASRC
LNAOUT
MIXIN+
MIXIN-
IFIN+
IFIN-
PDMIN
PDMAX
MIXOUT
DS-
DS+
OP+
DF
RSSI
T/R
ENABLE
DATA
N.C.
DVDD
HVIN
AUTOCAL
AGC1
AGC0
XTAL1
XTAL2
AUTOCAL
C20
C21
Y1
L4
C14
C15
DATA
ENABLE
C16
TRANSMIT
/
RECEIVE
C22
C5
C4
C18
C19
C7
L1
L2
C1C2
R2
R3*
*OPTIONAL POWER-ADJUST RESISTOR
C24
EXPOSED
PAD
C3
L6
V
DD
V
DD
V
DD
Typical Application Circuit
Selector Guide
PART
CARRIER
F R EQ U EN C Y ( M H z)
FSK DEVIATION
F R EQ U EN C Y ( k H z)
M AX 7031LATJ+
†
308 ±51.413
M AX 7031M ATJ15+ 315 ±15.477
M AX 7031M ATJ50+ 315 ±49.528
M AX 7031H ATJ17+ 433.92 ±17.221
M AX 7031H ATJ51+ 433.92 ±51.663
+
Denotes a lead(Pb)-free/RoHS-compliant package.
†
Contact factory for availability.
MAX7031
Low-Cost, 308MHz, 315MHz, and 433.92MHz
FSK Transceiver with Fractional-N PLL
______________________________________________________________________________________ 17
MAX7031
COMPONENT
VALUE FOR
433.92MHz RF
VALUE FOR
315MHz RF
DESCRIPTION
C1 220pF 220pF 10%
C2 680pF 680pF 10%
C3 6.8pF 12pF 5%
C4 6.8pF 10pF 5%
C5 10pF 22pF 5%
C6 220pF 220pF 10%
C7 0.1µF 0.1µF 10%
C8 100pF 100pF 5%
C9 1.8pF 2.7pF ±0.1pF
C10 100pF 100pF 5%
C11 220pF 220pF 10%
C12 100pF 100pF 5%
C13 1500pF 1500pF 10%
C14 0.047µF 0.047µF 10%
C15 0.047µF 0.047µF 10%
C16 470pF 470pF 10%
C17 220pF 220pF 10%
C18 220pF 220pF 10%
C19 0.01µF 0.01µF 10%
C20 100pF 100pF 5%
C21 100pF 100pF 5%
C22 220pF 220pF 10%
C23 0.01µF 0.01µF 10%
C24 0.01µF 0.01µF 10%
L1 22nH 27nH Coilcraft 0603CS
L2 22nH 30nH Coilcraft 0603CS
L3 22nH 30nH Coilcraft 0603CS
L4 10nH 12nH Coilcraft 0603CS
L5 16nH 30nH Murata LQW18A
L6 68nH 100nH Coilcraft 0603CS
R1 100kΩ 100kΩ 5%
R2 100kΩ 100kΩ 5%
R3 0Ω 0Ω —
Y1 17.63416MHz 12.67917MHz
Crystal, 4.5pF load
capacitance
Y2 10.7MHz ceramic filter 10.7MHz ceramic filter Murata SFECV10.7 series
Table 3. Component Values for Typical Application Circuit
Note: Component values vary depending on PCB layout.
MAX7031
Low-Cost, 308MHz, 315MHz, and 433.92MHz
FSK Transceiver with Fractional-N PLL
18 ______________________________________________________________________________________
LNA
90°
0°
RSSI
IF LIMITING
AMPS
100kΩ
100kΩ
DATA FILTER
7
8
9 10 11 12
14
13
FSK
DEMODULATOR
20
19
RX
DATA
18
15
16
17
30
29
28
24
21
23
22
DIGITAL LOGIC
31
32
CRYSTAL
OSCILLATOR
27
3.0V
REGULATOR
6
26
PA
MAX7031
5
12
RX VCO
RX
FREQUENCY
DIVIDER
PHASE
DETECTOR
CHARGE
PUMP
LOOP FILTER
TX
FREQUENCY
DIVIDER
Σ
I
Q
TX VCO
∆Σ
MODULATOR
EXPOSED
PAD
LNAIN
LNASRC
TX/RX1 TX/RX2
XTAL1
XTAL2
HVIN
AVDD
ROUT PAVDD PAOUT T/R DVDD ENABLE
DATA
AUTOCAL
AGC1
AGC0
DS-
PDMAX
PDMIN
DS+
RSSI
OP+
DF
IFIN+ IFIN-MIXOUT
MIXIN-MIXIN+LNAOUT
3
4
Functional Diagram
P1-P3P4-P6P7-P9P10-P12P13-P15P16-P18P19-P20

MAX7031MATJ50+

Mfr. #:
Buy MAX7031MATJ50+
Manufacturer:
Maxim Integrated
Description:
RF Transceiver 308/315/433.92MHz FSK Transceiver
Lifecycle:
New from this manufacturer.
Delivery:
DHL FedEx Ups TNT EMS
Payment:
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