73M1912-IM/F Maxim Integrated Products, 73M1912-IM/F Datasheet - Page 8

• Manufacturer Part Number: 73M1912-IM/F
• Description: Interface - Specialized MICRODAA CHIP SET LN SIDE
• Manufacturer: Maxim Integrated Products
• Type: Host Interface Chipr

Specifications of 73M1912-IM/F

• Operating Supply Voltage: 3.3 V
• Supply Current: 25 mA
• Maximum Operating Temperature: + 85 C
• Minimum Operating Temperature: - 40 C
• Mounting Style: SMD/SMT
• Package / Case: TSSOP-20
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

73M1922 Demo Board User Manual
3 Demo Board Schematics, PCB Layouts and Bill of Materials
3.1 Schematic
8
CONN SOCKET 10X2
R52
R53
49.9
49.9
3.3V POWER
JS1
J4
1
2
3
11
13
15
17
19
1
3
5
7
9
1
2
3
GND
VCC
VCC
2
4
6
8
10
12
14
16
18
20
R51 49.9
C46
1nF
R50
VCC
VCC
GND
49.9
GND
TP1
3,3uF
C34
R61 1K
C30
1nF
VCC
VCC
VCC
1
C31
1nF
C21
3.3uF
VCC
VCC
3.3uF
C47
1nF
C32
TP16
FSBD
C17
0.1uF
Pulse TFR
0.1uF
27pF
Figure 2: 73M1922 MicroDAA 20-Pin TSSOP Demo Board Schematic Diagram
1
C33
C18
T1
C14
15pF
3
24.576MHz
Y 2
1
C13
15pF
R54 0
C19
27pF
0.47uF
U1
73M1902
C9
C10 0.47uF
C24
NC (1nF, 3kV)
C15
0.1uF
GND
C26 1nF
C45 0.1uF
C22
3,3uF
3,3uF
R49
C29
VCC
10
1
2
3
4
5
6
7
8
9
C37
0.01uF
MMBTA06
VCC
C28
1nF
R48 20K
DCI
RGN
RGP
OFH
VND/VNX
SCP
MID
VPX
SRE
SRB
U2
20K
1
73M1912
C48
Q5
0.01uF
C27
1uF
DCB
DCE
DCD
RXM
RXP
VPS
VNS
ACS
VBG
TXM
4
1
2
3
TP14
OFH
U3
R46
NJM#2135M
-VIN
CD
VREF1
VREF2
255, 1%
C12
0.1uF
20
19
18
17
16
15
14
13
12
11
R10
120K
VOUT1
VOUT2
GND
R12
V+
8DMP
C8
4.7uF
5
8
6
7
5.1K
R8
100K, 1%
100K, 1%
R9 100K, 1%
C7
1uF
C38
0.1uF
R6
1
TP15
C4
2.2uF
C43
1nF
1uF
VPS
C6
TP10
TXM
VCC
VCC
VCC
VCC
VCC
VCC
C25
3,3uF
R5
8.2
AST-2308MR-R
Projects Unlimited
R66
R67
MMBTA42
C49
0.1uF
1
1M, 1%
1M, 1%
Q3
1
R11
3K
LS2
MMBTA92
Q4
R3 412K, 1%
R65 200
D1
MMSZ4710
TP18
VNS
100K, 1%
R58 1K
R2
10M
R4
C1
0.022uF, 250V
C3
0.022uF, 250V
1
100pF
1
C50
BCP56
Q7
MMBTA42
Q6
1
HD04
+
BR1
220pF, 3KV
C36
220pF, 3KV
-
C35
2
NOTE: GND f or C35 and C36 connect
to GND on the HOST side of the barrier
C41
220pF
L1
L2
2kOhm
2kOhm
TRF600-150
TB3100H
P3100SBRP
F1
E1
UM_1x22_006
Rev. 5.0
J1
RJ-11
6
5
4
3
2
1