MICRF112 データシートの表示（PDF） - Micrel
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MICRF112 Datasheet PDF : 20 Pages
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Micrel, Inc.
MICRF112
Tx112-1-315MHz ASK Bill of Materials
Item
1
2
3
4
5
6
7
8
9
10
11
Quantity
1
1
1
3
5
1
1
2
2
1
1
Ref
C1
C2
C5
R1,R4,R6
C6,C8,C11,C12,C15
C7
C10
C13,C14
J1,J2
L1
L4
Part
10µF
100pF
10pF
(np)
(np)
4.7pF
0.1µF
18pF
CON3
470nH
150nH
PCB
Footprint
0805
0603
0603
0603
0603
0603
0805
0603
12
1
13
1
14
6
13
1
14
1
L5
R2
R3,R5,R7
R8,JPR1,JPR2
U1
Y1
ANTENNA
100kΩ
0Ω
MICRF112YMM10
9.84375MHZ
XTAL
Table 3
0603
0603
Mfg P/N
GRM21BR60J106KE01L
GRM1885C1H101JA01D
GRM1885C1H1000JA01D
GRM1885C1H6R8JA01D
GRM188F51H104ZA01D
GRM1885C1H180JA01D
TSHR-114-S-02-A-GT
0805CS-470XJB
0603CS-R15XJB
ANTENNA LOOP, Part of
PCB
CRCW0603100KFKEA
CRC06030000Z0EA
MICRF112YM
SA-9.84375-F-10-C-3-3
Manufacturer
muRata
muRata
muRata
muRata
muRata
muRata
Coilcraft
Coilcraft
Vishay
Vishay
Micrel
HIB
FSK Operation
Table 2 and 3 describe the ASK operation for 433.92MHz and 315MHz.
Table 4 lists the component values that change between ASK or FSK operation. Please note that use of a high FSK data
rate may excite parasitic resonant modes with some crystal types. Recommended crystals from Table 2 and 3 are good
for both ASK and FSK.
Mode R1
ASK
NP
FSK
0Ω
R2
R5
100kΩ 0Ω
NP
NP
R6
NP
100kΩ
JPR1
0Ω
NP
Notes:
1. C8 = 3.3pF for 1kHz using HC49/U or HC49US type crystals.
2. C8= 10pF for 10kHz using HC49/U, (high profile) only.
JPR2
NP
0Ω
C8
NP
(1)3.3pF
(2)10pF
Table 4: ASK and FSK Settings
R3
Constant ON
0Ω
External Standby Control
NP
R4
NP
100kΩ
Table 5: Enable Control (Shutdown)
December 2011
19
M9999-120911
(408) 944-0800
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