参数资料
型号: 73M1903C-EVM
厂商: Maxim Integrated Products
文件页数: 17/23页
文件大小: 0K
描述: BOARD DEMO 73M1903C WORLDWIDE
产品培训模块: Lead (SnPb) Finish for COTS
Obsolescence Mitigation Program
标准包装: 1
主要目的: 接口,模拟前端(AFE)
已用 IC / 零件: *
主要属性: *
次要属性: *
已供物品: *

UM_1903C_030
73M1903C Evaluation Board User’s Manual
4 73M1903C Evaluation Board Schematics, PCB Layouts and Bill of Materials
4.1
Schematic
Softw are Volume control:
Manual volume control:
J1(2-3), J2(2-3) and
J1 (1-2) , J2/J3(don't care):Shutdow n (MUTE) SHUTDOWN
GAIN1
GAIN0
J3(2-3).
J1(open), J2((1-2),J3(1-2) : 6db Amp gain
J1(open), J2((1-2),J3(open) : 12db Amp gain
J1(open), J2((open),J3(1-2) : 18db Amp gain
J1HEADER3 J2HEADER3 J3HEADER3
VCCD
J1(open), J2((open),J3(open) : 23.4db Amp
gain.
R1
120K
VCCD
VCCA
R2
120K
Slave mode: Open JP23
FS
SCLK
AFEOUT
SLV_CLK
HOOK
FSBD
AFEIN
RESET
C3
Master mode: Shunt JP23 0.1UF
JP25
RINGD
1 2
3 4
5 6
7 8
9 10
HEADER 5X2
C1 +
3.3UF
JP23
1
TP1
GPIO0 RXAN
Slave mode: Populate R8 w ith a
4.7K resistor
Master mode: Do not populate R8
R8 4.7K NC
Default setting:
Shunt J23 and remove R8.
VCCA
1
TP2
R6 150K
TP4
TXAN2
R14
150K
R4 48.7K
TXAN1
TP3
R10 49.9
R11
R13
C6 150n
C7 150n
374
210
C13
TP5
TRAN1
R3
R5 4.7K
R9 4.7K
120K
C4
0.1uF
C8
0.1uF
C9 C10
10uF 1uF
1
2
3
4
5
6
7
8
U1
INP BY P
INN AGND
SHDN COSC
GAIN0 ROSC
GAIN1 VDD
PVDD PVDD
OUTP OUTN
PGND PGND
TPA2001D1
16
15
14
13
12
11
10
9
C5
C2
1uF
1uF
VCCD
R12
C11 C12
120K 220pF 1uF LS1
3
FSBD
TP6
VCCD
MODE0
open
31
30
29
28
U2
27
73M1903C-32_0
26
25
TP7
TP8
1 1 RESET TP9
JP22MODE 0
1
2
SCLKMODE
open
1 GPIO7
1 GPIO6
JP21GATED SCK
1
2
C18
0.1UF
C19
+
32
SDOUT VPA
GPIO6 TXAN2
SCKMODE TXAP2
TEST RXAN
RST RXAP
VPD VNA
VCCD
GPIO7 TXAN1
SDIN TXAP1
9
10
11
12
13
14
15
16
TP11
GND
1
C15 10UF
C20 0.1UF
TP10
TXAP2
3.3UF
C14
R18 150K
3.3uF
C17
R19 49.9
.082UF
R15
20K
R16
210
R20 374
C21 150n
T1 C16
Sumida +
TRANSFORMER_0
10UF 25V
3A 2A
Q1
FZT605CT
1
R17
33K
R51
0
R50
Q2
MMBTA42L
4.7k
1
2
BST1811P-06
INTERVOX
C29
0.047u
Dial Pulse Shaper
3.3UF
TP12
3B
2B
D1
C22
Y 1 24.576M
TXAP1
R21
150K
Slave mode: Shunt JP14, JP1
Master mode: Open JP14, JP1
JP24
0.1UF
C25
33PF
C26
22PF
RXAP
TP13
R23
48.7K
C23
150n
TP14
4B
4A
VCCD
1B
1A
BZT52C15-7
R24
18
R22
62K
+
C24
3.3UF 25V
This block must be
isolated from the main
power/ground plane.
SCLK
JP14
R52 0
SLV_CLK
TRAN2
JP8
JP2
Slave mode: Populate R31 w ith 0 Ohm
Default setting:
Do not populate R52
R29
20K
R30
56K
CID coupling
Master mode: Do not populate R31
22V
RING path
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
FSBD JP1
JP15
AFEOUT JP3
JP4
FS JP5
JP6
JP18
RINGD JP19
JP7
JP16
AFEIN JP9
1 2
1 2
3 4
5 6
7 8
9 10
11 12
13 14
15 16
17 18
19 20
JS1 CONN SOCKET 10X2
JP12
JP13
JP17
JP10
JP11
VCCD
RESET
HOOK
FS
L2
NLC322522T-4R7M
OFFHOOK
J5
1
2
3
J4
HEADER3
RING DETECTOR
R48 100
RINGB
U3
TLP627
RING Detection
D4
1N4001
1
D2
2 2
22V
D3
1
R33 9.1K
C27
0.47UF 200V
L1
NLC322522T-4R7M
TIP
TP15
F1
SCLK
JP20
3M 5120-B7A2JL
HEADER3
HOOK
Of f hook Control
C28
2
U4
1
E1
P3100SC
TR600-150
RAY CHEM
POLY SWITCH
J6
2
1
OPTIONS:
JS 1 - Redw ood 5 Connector 20 pin Rt. angle socket
DEFAULT SETTING:
Shunt JP7, JP8, JP10, JP11, JP20, JP22
This version supports:
---Ring Detection
---Caller ID
VCCD VCCA
L3
NLC322522T-4R7M
VCCD
J7
3
I
S
O
POWER CONNECTOR
1
TP18
GND
U5
TLP627
Shunt JP7,JP8, JP10, JP11, JP20, JP22 and install R48, R49.
Use Sumida MIT 4033 Transformer
Energy ring detection: Remove U3, D4, D2, D3, R29, R33 and
R49
9.1K
0.47UF 200V
HD04
TECCOR
SIDACTOR
NLC322522T-4R7M
L4
TP16
6
5
4
3
2
1
RJ-11
Rev. 2.0
replace C25 and C26 w ith 0.22uF
Figure 9: 73M1903C Evaluation Board Electrical Schematic
RING
17
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