Linear Technology LTC2270, Demo Manual

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dc1975fa
DEMO MANUAL DC1975A
PARTS LIST
ITEM QTY REFERENCE PART DESCRIPTION MANUFACTURER/PART NUMBER
Required Circuit Components
1 1 CN1 CAP, X5R, ARRAY, 2.2µF, 20%, 4V, 0508 AVX, W2L14D225MAT1A
2 2 C1, C5 CAP, 0402 2.2µF, 20%, 6.3V, X5R TAIYO YUDEN, JMK105BJ225MV-F
3 0 C2, C3, C6, C12, C13, C14, C22, CAP, 0402 OPT
4 5 C4, C8, C9, C11, C18 CAP, 0402, 1µF, 10%, 16V, X6S TDK, C1005X6S1C105K
5 6 C7, C10, C15, C16, C17, C19 CAP, 0402, 0.01µF, 10%, 16V, X7R AVX, 0402YC103KAT2A
6 5 C20, C21, C23, C30, C31 CAP, 0402, 0.1µF, 10%, 10V, X5R TDK, C1005X5R1A104K
7 12 C24-C29, C33-C38 CAP, 0603, 0.1µF, 10%, 50V, X7R TDK, C1608X7R1H104K
8 3 C39, C40, C41 CAP, 0603, 22pF, 5%, 16V, NPO AVX, 0603YA220JAT2A
9 1 C42 CAP, 0603, 4.7µF, 20%, 6.3V, X5R TDK, C1608X5R0J475MT
10 4 C43, C45, C46, C48 CAP, 0603, 1µF, 10%, 16V, X7R TDK, C1608X7R1C105K
11 2 C44, C47 CAP, 0805, 10µF, 10%, 16V, X5R MURATA, GRM21BR61C106KE15L
Test Pattern: Selects digital output test patterns
n
Off (default): ADC data presented at output
n
All Out =1: All digital outputs are 1
n
All Out = 0: All digital outputs are 0
n
Checkerboard: OF and D13-D0 alternate between
101 0101 1010 0101 and 010 1010 0101 1010 on
alternating samples
n
Alternating: Digital outputs alternate between all 1’s
and all 0’s on alternating samples
Alternate Bit: Alternate bit polarity (ABP) mode
n
Off (default): Disables alternate bit polarity
n
On: Enables alternate bit polarity. Before enabling
ABP, be sure the part is in offset binary mode
Randomizer: Enables data output randomizer
n
Off (default): Disables data output randomizer
n
On: Enables data output randomizer
Two’s complement: Enables two’s complement mode
n
Off (default): Selects offset binary mode
n
On: Selects two’s complement mode
Once the desired settings are selected, hit OK and PScope
will automatically update the register of the device on the
DC1975A demo board.
SOFTWARE