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Item
Qty.
13
1
J6
14
2
J11, J12
15
4
J1B, P2, P4, P5
16
1
P6
17
3
TP1, TP2, TP4
18
1
U1
19
2
U2, U3
20
1
U4
21
1
REF1
22
1
REF2
23
1
J3
24
2
D1, D5
25
3
W5, W10, W11
W1, W2, W3, W4, W6,
26
8
W7, W8, W9
(2)
P2, P4, and P6 parts are not shown in the schematic diagram. All P designated parts are installed in the bottom side of the PC
board opposite the J designated counterpart. Example, J2 is installed on the topside while P2 is installed in the bottom side
opposite of J2.
3
EVM Operation
This chapter presents in detail the operation of the EVM to provide guidance to the user in evaluating the
onboard AMC and how to interface the EVM to a specific host processor.
Refer to the AMC7823 data sheet (SLAS453) for information about its serial interface and other related
topics.
The EVM board is tested and configured to operate from the factory.
3.1
Factory Default Settings
The EVM board is set to its default configuration at the factory as described in
unipolar mode. The jumper configuration is shown in
Jumper
Reference
Position
W1
Open
W2
2-3
W3
1-2
W4
1-2
W5
Closed
W6
1-2
W7
2-3
W8
Open
W9
Open
W10
Closed
W11
Closed
SLAU171 – November 2005
Table 1. Parts List (continued)
Designators
10-PIN_IDC
3-Pin terminal connector
20-PIN_IDC
10-PIN Isolated power socket,
(2)
0.100
Turret terminal pin
QFN-40 (RTA), 12-bit analog
monitoring and control circuit
Single buffer/driver
64-Kbit EEPROM
1.25-V Reference
2.5-V Reference
Terminal block 3,5 mm, 2-pos PCB
2.2-V, 45 mC LED, green
2 Circuit header, 0.100 straight
3 Circuit header, 0.100 straight
Table 2. Factory Default Jumper Settings
Internal reference voltage is used.
Digital logic supply, IOV
Analog supply, AV
, for the AMC7823 is +5 VA.
DD
Digital core supply, DV
Signal ground for ADC analog input is tied to analog ground.
CS signal from J2 is routed through to drive the SS signal pin of the AMC7823.
The external 2.5-V reference is connected as the external reference voltage source through the W1
header.
Convert pin is floated and ADC internal trigger is used.
LRCLK or BCLK not used for convert signal.
Address of EEPROM is set to 0x00.
Analog ground and digital ground are tied together.
Description
Samtec
(1)
On-Shore Tech.
(2)
Samtec
Samtec
Mill-Max
Texas Instruments
Texas Instruments
Microchip Technology 24LC64-I/ST
Texas Instruments
Texas Instruments
On-Shore Tech.
Lumex
Molex
Molex
Figure 9
for clarity.
Function
, for the AMC7823 is +3.3 VD.
DD
, for the AMC7823 is +5 VD.
DD
EVM Operation
Manufacturer
Mfg. Part Number
TSM-105-01-T-DV
ED555/3DS
SSW-110-22-S-D-VS-P
SSW-105-22-F-D-VS-K
2348-2-01-00-00-07-0
AMC7823IRTA
SN74LVC1G07DBVR
REF3112AIDBZT
REF3125AIDBZT
ED555/2DS
SML-LX1206SUGC-TR
22-03-2021
22-03-2031
Table 2
to operate in
AMC7823 Evaluation Module
9
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