Linear Technology DC1884A Series Guida rapida alla configurazione

dc1884af

DEMO MANUAL DC1884A

DESCRIPTION

LTM9011-14, LTM9010-14,

LTM9009-14, LTM9008-14, LTM9007-14,

LTM9006-14: 14-Bit, 125/105/80/

65/40/25Msps Octal ADC Family

DC1884 supports the LTM

9011 high speed, octal ADC

family.

The versions of the 1884A demo board are listed in Table 1.

Depending on the required resolution and sample rate,

the DC1884 is supplied with the appropriate ADC. The

circuitry on the analog inputs is optimized for analog input

PARAMETER CONDITION VALUE

Supply Voltage – DC1884A Depending on Sampling Rate and the A/D Converter

Provided, This Supply Must Provide Up to 700mA

Optimized for 3.5V

[3.3V to 6V Minimum/Maximum]

Analog Input Range Depending on SENSE Pin Voltage 1VP-P to 2VP-P

Logic Input Voltages Minimum Logic High 1.3V

Maximum Logic Low 0.6V

Logic Output Voltages (Differential) Nominal Logic Levels (100Ω Load, 3.5mA Mode) 350mV/1.25V Common Mode

Minimum Logic Levels (100Ω Load, 3.5mA Mode) 247mV/1.25V Common Mode

Sampling Frequency (Convert Clock Frequency) See Table 1

Encode Clock Level Single-Ended Encode Mode (ENC–Tied to GND) 0V to 3.6V

Encode Clock Level Differential Encode Mode (ENC–Not Tied to GND) 0.2V to 3.6V

Resolution See Table 1

Input Frequency Range See Table 1

SFDR See Applicable Data Sheet

SNR See Applicable Data Sheet

PERFORMANCE SUMMARY

frequencies from 1MHz to 70MHz. Refer to the data sheet

for proper input networks for different input frequencies.

Design ﬁles for this circuit board are available at

http://www.linear.com/demo

L, LT, LTC, LTM, Linear Technology and the Linear logo are registered trademarks of Linear

Technology Corporation. All other trademarks are the property of their respective owners.

Table 1. DC1884 Variants

DC1884 VARIANTS ADC PART NUMBER RESOLUTION MAXIMUM SAMPLE RATE INPUT FREQUENCY

1884A-A LTM9011-14 14-Bit 125Msps 1MHz to 70MHz

1884A-B LTM9010-14 14-Bit 105Msps 1MHz to 70MHz

1884A-C LTM9009-14 14-Bit 80Msps 1MHz to 70MHz

1884A-D LTM9008-14 14-Bit 65Msps 1MHz to 70MHz

1884A-E LTM9007-14 14-Bit 40Msps 1MHz to 70MHz

1884A-F LTM9006-14 14-Bit 25Msps 1MHz to 70MHz

(TA= 25°C)

dc1884af

DEMO MANUAL DC1884A

QUICK START PROCEDURE

DC1884 is easy to set up to evaluate the performance of

the LTM9011 family of A/D converters. For proper mea-

surement equipment setup, refer to Figure 1 and follow

the procedure explained in the following sections.

Figure 1. Test Setup of DC1884

DC1884A F01

ANALOG

INPUTS

3V TO 6V

GND JUMPERS SHOWN IN

DEFAULT POSITIONS

SINGLE-ENDED ENCODE CLOCK

dc1884af

DEMO MANUAL DC1884A

QUICK START PROCEDURE

Setup

If a DC1371 data acquisition and collection system was

supplied with the DC1884, follow the DC1371 Quick Start

Guide to install the required software and to connect the

DC1371 to the DC1884 and to a PC.

DC1884 Board Jumpers

The DC1884 board should have the following jumper set-

tings as default positions (as per Figure 1):

JP14: PAR/SER: Selects Parallel or Serial Programming

Mode. (Default: Serial)

Optional Jumpers AJ3 and J6: Term: Enables/Disable

Optional Output Termination. (Default: Removed)

JP5: ILVDS:Selects Either 1.75mA or 3.5mA of Output

Current for the LVDS Drivers. (Default: Removed)

JP1 and JP2: Lane: Selects Either1-Laneor2-LaneOutput

Modes (Default: Removed)

Note: The DC1371 does not support 1-Lane operation.

JP9: SHDN: Enables and Disables the LTM9011.

(Default: Removed)

JP8: WP: Enable/Disables Write Protect for the EEPROM.

(Default: Removed)

Note: Optional jumper should be left open to ensure proper

serial conﬁguration.

Applying Power and Signals to the DC1884

The DC1371 is used to acquire data from the DC1884. The

DC1371 must ﬁrst be connected to a powered USB port

and have 5V applied power before applying 3.5V across

the pins marked V+and “GND” on the DC1884. DC1884

requires 3.5V for proper operation.

The DC1884 demonstration circuit requires up to 700mA

depending on the sampling rate and the A/D converter

supplied.

The DC1884 should not be removed or connected to the

DC1371 while power is applied.

Analog Input Network

For optimal distortion and noise performance, the RC

network on the analog inputs may need to be optimized

for different analog input frequencies. For input frequen-

cies above 70MHz, refer to the LTM9011 data sheet for a

proper input network.

In almost all cases, ﬁlters will be required on both analog

input and encode clock to provide data sheet SNR.

The ﬁlters should be located close to the inputs to avoid

reﬂections from impedance discontinuities at the driven

end of a long transmission line. Most ﬁlters do not present

50Ω outside the passband. In some cases, 3dB to 10dB

pads may be required to obtain low distortion.

If your generator cannot deliver full-scale signals without

distortion,youmaybeneﬁtfromamediumpowerampliﬁer

based on a gallium arsenide gain block prior to the ﬁnal

ﬁlter. This is particularly true at higher frequencies where

IC based operational ampliﬁers may be unable to deliver

the combination of low noise ﬁgure and high IP3 point

required. A high order ﬁlter can be used prior to this ﬁnal

ampliﬁer, and a relatively lower Q ﬁlter used between the

ampliﬁer and the demonstration circuit.

dc1884af

DEMO MANUAL DC1884A

QUICK START PROCEDURE

Encode Clock

Note: Apply an encode clock to the SMA connector on

the DC1884 demonstration circuit board marked “J2

CLK+.” As a default, the DC1884 is populated to have a

single-ended input.

For the best noise performance, the ENCODE input must

be driven with a very low jitter, square wave source. The

amplitude should be large, up to 3VP-P or 13dBm. When

using a sinusoidal signal generator, a squaring circuit can

be used. Linear Technology also provides demo board

DC1075A that divides a high frequency sine wave by four,

producing a low jitter square wave for best results with

the LTM9011.

Usingbandpassﬁlters on theclockand the analog input will

improve the noise performance by reducing the wideband

noise power of the signals. In the case of the DC1884 a

bandpass ﬁlter used for the clock should be used prior

to the DC1075A. Data sheet FFT plots are taken with 10

pole LC ﬁlters made by TTE (Los Angeles, CA) to suppress

signal generator harmonics, non harmonically related

spurs and broadband noise. Low phase noise Agilent

8644B generators are used for both the clock input and

the analog input.

Digital Outputs

Data outputs, data clock, and frame clock signals are

available on J1 of the DC1884. This connector follows the

VITA-57/FMC standard, but all signals should be veriﬁed

when using an FMC carrier card other than the DC1371.

Software

The DC1371 is controlled by the PScope system software

that can bedownloaded fromthe Linear Technology website

at http://www.linear.com/software/.

To startthe data collectionsoftware, “PScope.exe,” whichis

installed by default to \Program Files\LTC\PScope\, double

click the PScope icon or bring up the run window under

the start menu, and browse to the PScope directory and

select “PScope.”

If the DC1884 isproperly connected tothe DC1371, PScope

should automatically detect the DC1884 and conﬁgure

itself accordingly.

If everything is hooked up properly and a powered and

suitable convert clock is present, clicking the “Collect”

button should result in time and frequency plots displayed

in the PScope window. Additional information and help for

PScope is available in the DC1371 Quick Start Guide, and

in the online help feature within the PScope program itself.

dc1884af

DEMO MANUAL DC1884A

QUICK START PROCEDURE

Figure 2. PScope Toolbar

Figure 3. Demo Board Conﬁguration Options

Serial Programming

PScope has the ability to program the DC1884 serially

through the DC1371. There are several options available

in the LTM9011 family that are only available through

serially programming. PScope allows all of these features

to be tested.

These options are available by ﬁrst clicking on the “Set

Demo Bd Options” icon on the PScope toolbar (Figure 2).

This will bring up the menu shown in Figure 3.

This menu allows any of the options available for the

LTM9011 family to be programmed serially. The LTM9011

family has the following options:

Randomizer: Enables Data Output Randomizer.

• Off (Default): Disables data output randomizer.

• On: Enables data output randomizer.

Two’s Complement: Enables Two’s Complement Mode.

• Off (Default): Selects offset binary mode.

• On: Selects two’s complement mode.

Sleep Mode: Selects Between Normal Operation and

Sleep Mode.

• Off (Default): Entire ADC is powered and active.

• On: The entire ADC is powered down.

Channel 1 Nap: Selects Between Normal Operation and

Putting Channel 1 in Nap Mode.

• Off (Default): Channel 1 is active.

• On: Channel 1 is in nap mode.

Channel 2 Nap: Selects Between Normal Operation and

Putting Channel 2 in Nap Mode.

• Off (Default): Channel 2 is active.

• On: Channel 2 is in nap mode.

Channel 3 Nap: Selects Between Normal Operation and

Putting Channel 3 in Nap Mode.

• Off (Default): Channel 3 is active.

• On: Channel 3 is in nap mode.

Channel 4 Nap: Selects Between Normal Operation and

Putting Channel 4 in Nap Mode.

• Off (Default): Channel 4 is active.

• On: Channel 4 is in nap mode.

dc1884af

DEMO MANUAL DC1884A

QUICK START PROCEDURE

Output Current: Selects the LVDS Output Drive Current.

• 1.75mA (Default): LVDS output driver current.

• 2.1mA: LVDS output driver current.

• 2.5mA: LVDS output driver current.

• 3.0mA: LVDS output driver current.

• 3.5mA: LVDS output driver current.

• 4.0mA: LVDS output driver current.

• 4.5mA: LVDS output driver current.

Internal Termination: Enables LVDS Internal Termination.

• Off (Default): Disables internal termination.

• On: Enables internal termination.

Outputs: Enables Digital Outputs.

• Enabled (Default): Enables digital outputs.

• Disabled: Disables digital outputs.

Test Pattern: Selects Digital Output Test Patterns. The

desired test pattern can be entered into the text boxes

provided.

• Off (Default): ADC input data is displayed.

• On: Test pattern is displayed.

Once the desired settings are selected, click “OK” and

PScope will automatically update the register of the device

on the DC1884 demo board.

dc1884af

DEMO MANUAL DC1884A

PARTS LIST

ITEM QTY REFERENCE PART DESCRIPTION MANUFACTURER/PART NUMBER

DC1884A1

1 5 C1, C69, C81, C94, C107 CAP, X5R, 2.2μF 16V 20%, 0603 TAIYO YUDEN, EMK107BJ225MA

2 0 C2 CAP, 0402 TBD

3 0 C3, C6 CAP, X7R, 0.01μF 16V 10%, 0402 OPT

4 19 C4, C8, C9, C58, C59, C65, C66, C71,

C72, C77, C78, C84, C85, C90, C91,

C97, C98, C103, C104

CAP, X7R, 0.01μF 16V 10%, 0402 AVX, 0402YC103KAT2A

5 10 C5, C7, C60, C67,C73, C79, C86, C92,

C99, C105

CAP, NP0, 4.7pF 25V 10% 0402 AVX, 04023A4R7KAT2A

6 1 C10 CAP, X5R, 4.7μF 6.3V, 20%, 0603 TAIYO YUDEN, JMK107BJ475MA-T

7 2 C11, C12 CAP, X7R, 1μF 10V, 20%, 0603 AVX, 0603ZC105MAT1A

8 1 C13 CAP, TANT 100μF 10V, 20%, 6032 AVX, TAJW107M010R

9 3 C14, C55, C56 CAP, X5R, 0.1μF 10V, 10%, 0402 AVX, 0402ZD104KAT2A

10 16 C57, C61, C62, C64, C68, C74, C76,

C80, C83, C87, C89, C93, C96, C100,

C102, C106

CAP, COG, 8.2pF, 50V, 5%, 0402 AVX, 04025A8R2JAT2A

11 8 C63, C70, C75, C82, C88, C95, C101,

C108

CAP, X5R, 0.1μF 10V, 10%, 0603 AVX, 0603ZD104KAT2A

12 3 E1, E3, E4 TURRET, TESTPOINT 0.062 THICK BRD 0.094" MILL MAX 2501-2-00-80-00-00-07-0

13 2 FB1, FB2 FERRITE BEAD, ?AMP 1206 MURATA BLM31PG330SN1L

14 8 JP1, JP2, JP3, JP4, JP5, JP6, JP8,

JP9

HEADERS, SGL ROW 3 PINS 2mm CTRS SAMTEC TMM-103-02-L-S

15 10 J1, J2, J4, J5, J6, J7, J8, J9, J10, J11 CON, SMA STRAIGHT CONNEX, 132134

16 1 J3 BGA CONN, 10 × 40 PIN SAMTEC, SEAM-40-02.0-S-10-2-A-K-TR

17 0 L1 IND, 0603 TBD

18 8 L2, L3, L4, L5, L6, L7, L8, L9 IND, 56nH, 0603 MURATA, LQP18MN56NG02D

19 8 R1, R2, R3, R6, R7, R8, R10, R85 RES, CHIP 1k, 1/16W, 5% 0402 VISHAY CRCW04021K00JNED

20 5 R4, R11, R82, R83, R84 RES, CHIP 10k, 1/16W, 5% 0402 VISHAY CRCW040210K0JNED

21 2 R5, R13 RES, CHIP 31.6k, 1/16W, 1% 0402 VISHAY CRCW040231K6FKED

22 4 R9, R19, R20, R86 RES, CHIP 100, 1/16W, 5% 0402 VISHAY CRCW0402100RJNED

23 0 R14, R15, R16, R18, R24, R25, R26,

R27

RES, 0402 TBD

24 2 R17, R23 RES, CHIP 5.1, 1/16W, 5% 0402 VISHAY CRCW04025R10JNED

25 10 R21, R22, R104, R114, R124, R134,

R144, R154, R164, R174

RES, CHIP 49.9, 1/16W, 1% 0402 VISHAY CRCW040249R9FKED

26 1 R28 RES, CHIP 3k, 1/16W, 5% 0603 VISHAY CRCW06033K00JNEA

27 1 R29 RES, CHIP 180k, 1/16W, 1% 0603 VISHAY CRCW0603180KFKEA

28 0 R87, R88, R89, R90, R91, R92, R93,

R94

RES, CHIP, 100, 1/16W, 1% 0201 OPT

29 24 R95, R96, R97, R105 TO R107, R115

TO R117, R125, R126, R128, R135 TO

R137, R145, R146, R148, R155 TO

R157, R165, R166, R168

RES, CHIP, 86.6, 1/16W, 1%, 0402 YAGEO, RC0402FR-0786R6L

30 16 R98, R99, R108, R109, R118, R119,

R127, R129, R138, R139, R147,

R149, R158, R159, R167, R169

RES, CHIP, 33.2, 1/16W, 1% 0402 YAGEO, RC0402FR-0733R2L

dc1884af

DEMO MANUAL DC1884A

PARTS LIST

ITEM QTY REFERENCE PART DESCRIPTION MANUFACTURER/PART NUMBER

31 16 R100, R101, R110, R111, R120,

R121, R130, R132, R140, R141,

R150, R152, R160, R161, R170, R172

RES, CHIP, 10.0, 1/16W, 1% 0402 YAGEO, RC0402FR-0710RL

32 16 R102, R103, R112, R113, R122,

R123, R131, R133, R142, R143,

R151, R153, R162, R163, R171, R173

RES, CHIP, 10.0, 1/16W, 1% 0201 YAGEO, RC0201FR-0710RL

33 9 T1, T3, T5, T7, T9, T11, T13, T15, T17 XFMR, RF~SMT~1:1, TRANS-SM-22-M/A-COM M/A-COM, MABA-007159-000000

34 8 T4, T6, T8, T10, T12, T14, T16, T18 XFMR, FLUX-COUPLED, TRANS-SM-22-M/A-COM M/A-COM, MABAES0060

35 1 U2 IC, ADJUSTABLE LDO, DFN8DD LINEAR TECHNOLOGY, LT3080EDD

36 1 U3 IC, SERIAL EEPROM TSSOP-8 MICROCHIP, 24LC32A-I/ST

37 8 AS SHOWN ON ASSY DWG SHUNT, 0.079" CENTER SAMTEC, 2SN-BK-G

STENCIL (TOP AND BOTTOM) DC1884-1

DC1884A-A

1 1 DC1884A-1 GENERAL BOM

2 1 U1 IC, AD CONVERTER MODULE, BGA140, 11.25mm

× 9mm × 2.72mm

LINEAR TECHNOLOGY, LTM9011IY-14

DC1884A-B

1 1 DC1884A-1 GENERAL BOM

2 1 U1 IC, AD CONVERTER MODULE, BGA140, 11.25mm

× 9mm × 2.72mm

LINEAR TECHNOLOGY, LTM9010IY-14

DC1884A-C

1 1 DC1884A-1 GENERAL BOM

2 1 U1 IC, AD CONVERTER MODULE, BGA140, 11.25mm

× 9mm × 2.72mm

LINEAR TECHNOLOGY, LTM9009IY-14

DC1884A-D

1 1 DC1884A-1 GENERAL BOM

2 1 U1 IC, AD CONVERTER MODULE, BGA140, 11.25mm

× 9mm × 2.72mm

LINEAR TECHNOLOGY, LTM9008IY-14

DC1884A-E

1 1 DC1884A-1 GENERAL BOM

2 1 U1 IC, AD CONVERTER MODULE, BGA140, 11.25mm

× 9mm × 2.72mm

LINEAR TECHNOLOGY, LTM9007IY-14

DC1884A-F

1 1 DC1884A-1 GENERAL BOM

2 1 U1 IC, AD CONVERTER MODULE, BGA140, 11.25mm

× 9mm × 2.72mm

LINEAR TECHNOLOGY, LTM9006IY-14

dc1884af

DEMO MANUAL DC1884A

D D

C C

B B

A A

1. ALL RESISTORS AND CAPACITORS ARE 0402.

NOTE: UNLESS OTHERWISE SPECIFIED:

ASSY

-A U1

LTM9011IY -Bit

14 Msps

-B

-C

-E

-F

-D

LTM9010IY

LTM9009IY

LTM9008IY

LTM9007IY

LTM9006IY

125

105

CLK-

CLK+

AIN1+

AIN1-

AIN4+ AIN6+

AIN4- AIN6-

AIN2+

AIN2-

AIN7+AIN3+

AIN7-AIN3-

AIN8+AIN5+

AIN8-AIN5-

OUT1A+

OUT1A-

OUT1B+

OUT1B-

OUT2A+

OUT2A-

OUT2B+

OUT2B-

OUT3A+

OUT3A-

OUT3B+

OUT3B-

OUT4A+

OUT4A-

OUT4B+

OUT4B-

OUT5A+

OUT5A-

OUT5B+

OUT5B-

OUT6A+

OUT6A-

OUT6B+

OUT6B-

OUT7A+

OUT7A-

OUT7B+

OUT7B-

OUT8A+

OUT8A-

OUT8B+

OUT8B-

FRA+

FRA-

FRB+

FRB-

DCOA+

DCOA-

DCOB+

DCOB-

AIN1+

AIN1-

VCM12

AIN2+

AIN2-

AIN4+

AIN4-

AIN6+

AIN6-

AIN7+

AIN7-

AIN8-

VCM78

AIN5+

AIN5-

AIN3+

AIN3-

VCM34

VCM56

AIN8+

SDOA

CSB

CSA

SCK

MOSI

PAR/SER

SDOB

+1.8V

+1.8VO

+1.8V

+1.8V3.3_AUX

+1.8V

+1.8VO

+1.8V

3.3_AUX

+1.8V

SIZE

DATE:

IC NO. REV.

SHEET OF

TITLE:

APPROVALS

PCB DES.

APP ENG.

TECHNOLOGY Fax: (408)434-0507

Milpitas, CA 95035

Phone: (408)432-1900

1630 McCarthy Blvd.

LTC Confidential-For Customer Use Only

CUSTOMER NOTICE

LINEAR TECHNOLOGY HAS MADE A BEST EFFORT TO DESIGN A

CIRCUIT THAT MEETS CUSTOMER-SUPPLIED SPECIFICATIONS;

HOWEVER, IT REMAINS THE CUSTOMER'S RESPONSIBILITY TO

VERIFY PROPER AND RELIABLE OPERATION IN THE ACTUAL

APPLICATION. COMPONENT SUBSTITUTION AND PRINTED

CIRCUIT BOARD LAYOUT MAY SIGNIFICANTLY AFFECT CIRCUIT

PERFORMANCE OR RELIABILITY. CONTACT LINEAR

TECHNOLOGY APPLICATIONS ENGINEERING FOR ASSISTANCE.

THIS CIRCUIT IS PROPRIETARY TO LINEAR TECHNOLOGY AND

SCHEMATIC

SUPPLIED FOR USE WITH LINEAR TECHNOLOGY PARTS.

SCALE = NONE

www.linear.com

DEMO CIRCUIT 1884A

03/16/2012, 04:46 PM 1 3

LOW POWER OCTAL-ADC

BLTM90XXIY

KIM T.

CLARENCE M.

SIZE

DATE:

IC NO. REV.

SHEET OF

TITLE:

APPROVALS

PCB DES.

APP ENG.

TECHNOLOGY Fax: (408)434-0507

Milpitas, CA 95035

Phone: (408)432-1900

1630 McCarthy Blvd.

LTC Confidential-For Customer Use Only

CUSTOMER NOTICE

LINEAR TECHNOLOGY HAS MADE A BEST EFFORT TO DESIGN A

CIRCUIT THAT MEETS CUSTOMER-SUPPLIED SPECIFICATIONS;

HOWEVER, IT REMAINS THE CUSTOMER'S RESPONSIBILITY TO

VERIFY PROPER AND RELIABLE OPERATION IN THE ACTUAL

APPLICATION. COMPONENT SUBSTITUTION AND PRINTED

CIRCUIT BOARD LAYOUT MAY SIGNIFICANTLY AFFECT CIRCUIT

PERFORMANCE OR RELIABILITY. CONTACT LINEAR

TECHNOLOGY APPLICATIONS ENGINEERING FOR ASSISTANCE.

THIS CIRCUIT IS PROPRIETARY TO LINEAR TECHNOLOGY AND

SCHEMATIC

SUPPLIED FOR USE WITH LINEAR TECHNOLOGY PARTS.

SCALE = NONE

www.linear.com

DEMO CIRCUIT 1884A

03/16/2012, 04:46 PM 1 3

LOW POWER OCTAL-ADC

BLTM90XXIY

KIM T.

CLARENCE M.

SIZE

DATE:

IC NO. REV.

SHEET OF

TITLE:

APPROVALS

PCB DES.

APP ENG.

TECHNOLOGY Fax: (408)434-0507

Milpitas, CA 95035

Phone: (408)432-1900

1630 McCarthy Blvd.

LTC Confidential-For Customer Use Only

CUSTOMER NOTICE

LINEAR TECHNOLOGY HAS MADE A BEST EFFORT TO DESIGN A

CIRCUIT THAT MEETS CUSTOMER-SUPPLIED SPECIFICATIONS;

HOWEVER, IT REMAINS THE CUSTOMER'S RESPONSIBILITY TO

VERIFY PROPER AND RELIABLE OPERATION IN THE ACTUAL

APPLICATION. COMPONENT SUBSTITUTION AND PRINTED

CIRCUIT BOARD LAYOUT MAY SIGNIFICANTLY AFFECT CIRCUIT

PERFORMANCE OR RELIABILITY. CONTACT LINEAR

TECHNOLOGY APPLICATIONS ENGINEERING FOR ASSISTANCE.

THIS CIRCUIT IS PROPRIETARY TO LINEAR TECHNOLOGY AND

SCHEMATIC

SUPPLIED FOR USE WITH LINEAR TECHNOLOGY PARTS.

SCALE = NONE

www.linear.com

DEMO CIRCUIT 1884A

03/16/2012, 04:46 PM 1 3

LOW POWER OCTAL-ADC

BLTM90XXIY

KIM T.

CLARENCE M.

REVISION HISTORY

DESCRIPTION DATEAPPROVEDECO REV

CLARENCE M.1ST PROTOTYPE

1 03-16-12

REVISION HISTORY

DESCRIPTION DATEAPPROVEDECO REV

CLARENCE M.1ST PROTOTYPE

1 03-16-12

REVISION HISTORY

DESCRIPTION DATEAPPROVEDECO REV

CLARENCE M.1ST PROTOTYPE

1 03-16-12

R14

OPT

R14

OPT

0.01uF

4.7pF

0.01uF

OPT

0.01uF

OPT

JP6

DIS

TERM

HD1X3-079

JP6

DIS

TERM

HD1X3-079

R19

100

R19

100

R92

100

0201

R92

100

0201

R16

OPT

R16

OPT

R27

OPT

R27

OPT

JP4

PAR

SER

PAR/SER

HD1X3-079

JP4

PAR

SER

PAR/SER

HD1X3-079

31.6K

CONNEX-132134

CLK+ J2

CONNEX-132134

CLK+

0.01uF

OPT

V+

3V - 6V

V+

3V - 6V

JP3

DIS

TERM

HD1X3-079

JP3

DIS

TERM

HD1X3-079

R17

5.1

R17

5.1

C10

4.7uF

6.3V

0603

C10

4.7uF

6.3V

0603

R23

5.1

R23

5.1

MABA-007159-000000

4 3

R13

31.6K

R13

31.6K

R87

100

0201

R87

100

0201

R88

100

0201

R88

100

0201

FB1

BLM31PG330SN1L

FB1

BLM31PG330SN1L

R15

OPT

R15

OPT

R18

OPT

R18

OPT

C14

0.1uF

C14

0.1uF

R94

100

0201

R94

100

0201

0.01uF

4.7pF

AIN1+

B2 AIN1-

B1 VCM12

AIN2+

C2 AIN2-

AIN3+

E2 AIN3-

E1 VCM34

AIN4+

G2 AIN4-

AIN5+

H1 AIN5-

H2 VCM56

AIN6+

K1 AIN6-

AIN7+

M1 AIN7-

AIN8+

N1 AIN8-

N2 VCM78

GND

A1 GND

A2 GND

A3 GND

A4 GND

A5 GND

A6 GND

B4 GND

B5 GND

B7 GND

C3 GND

C4 GND

C6 GND

D1 GND

D2 GND

D5 GND

E5 GND

F1 GND

F2 GND

F4 GND

F5 GND

F6 GND

G3 GND

G4 GND

G5 GND

G6 GND

H3 GND

H4 GND

H5 GND

H6 GND

J1 GND

J2 GND

J4 GND

J5 GND

J6 GND

K5 GND

K6 GND

L1 GND

L2 GND

M3 GND

M4 GND

N4 GND

N5 GND

N6 GND

N7 GND

P1 GND

P2 GND

P3 GND

P4 GND

OGND

A9 OGND

A10 OGND

B9 OGND

B10 OGND

H9 OGND

H10 OGND

N9 OGND

N10 OGND

P9 OGND

P10

OUT1A+ E8

OUT1A- E7

OUT2A+ A8

OUT2A- B8

OUT1B+ D8

OUT1B- C8

OUT2B+ C7

OUT2B- D7

OUT3A+ D9

OUT3A- D10

OUT3B+ E9

OUT3B- E10

OUT4A+ C10

OUT4A- C9

OUT4B+ F8

OUT4B- F7

OUT5A+ J7

OUT5A- J8

OUT5B+ K7

OUT5B- K8

OUT6A+ K10

OUT6A- K9

OUT6B+ L10

OUT6B- L9

OUT7A+ L7

OUT7A- M7

OUT7B+ N8

OUT7B- P8

OUT8A+ M8

OUT8A- L8

OUT8B+ M9

OUT8B- M10

CLK-

P6 CLK+

FRA+ H8

FRA- H7

FRB+ J10

FRB- J9

DCOA+ G7

DCOA- G8

DCOB+ F9

DCOB- F10

+1.8VO

G9 +1.8VO

G10

+1.8V

L4 +1.8V

L3 +1.8V

K4 +1.8V

K3 +1.8V

E4 +1.8V

E3 +1.8V

D4 +1.8V

SDOB D6

SDOA E6

CSB M5

CSA L5

SCK L6

PAR/SER A7

SENSE C5

VREF B6

SDI M6

C11

1uF

0603

C11

1uF

0603

R29

180K

R29

180K

0.01uF

OPT

0.01uF

OPT

100

R10

1K JP2

1 LANE

2 LANE

LANE

HD1X3-079

JP2

1 LANE

2 LANE

LANE

HD1X3-079

10K

R93

100

0201

R93

100

0201

R26

OPT

R26

OPT

JP1

1 LANE

2 LANE

LANE

HD1X3-079

JP1

1 LANE

2 LANE

LANE

HD1X3-079

JP5

1.7mA

3.5mA

ILVDS

HD1X3-079

JP5

1.7mA

3.5mA

ILVDS

HD1X3-079

EXT REF

LT3080EDD

SET 4

7OUT 1

8OUT 2

OUT 9

VCTRL

OUT 3

C12

1uF

0603

C12

1uF

0603

R25

OPT

R25

OPT

GND

FB2

BLM31PG330SN1L

FB2

BLM31PG330SN1L

R28

R21

49.9

R21

49.9

C56

0.1uF

C56

0.1uF

2.2uF

0603

2.2uF

0603

R22

49.9

R22

49.9

R24

OPT

R24

OPT

R91

100

0201

R91

100

0201

C13

100uF

10V

6032

C13

100uF

10V

6032

R11

10K

R11

10K

CONNEX-132134

CLK- J1

CONNEX-132134

CLK-

R20

100

R20

100

R90

100

0201

R90

100

0201

R89

100

0201

R89

100

0201

SCHEMATIC DIAGRAMS

dc1884af

DEMO MANUAL DC1884A

D D

C C

B B

A A

AIN1+

AIN1-

VCM12

AIN2+

AIN2-

AIN7+

AIN7-

VCM78

AIN8+

AIN8-

AIN3+

AIN3-

VCM34

AIN4+

AIN4-

AIN5+

AIN5-

VCM56

AIN6+

AIN6-

SIZE

DATE:

IC NO. REV.

SHEET OF

TITLE:

APPROVALS

PCB DES.

APP ENG.

TECHNOLOGY Fax: (408)434-0507

Milpitas, CA 95035

Phone: (408)432-1900

1630 McCarthy Blvd.

LTC Confidential-For Customer Use Only

CUSTOMER NOTICE

LINEAR TECHNOLOGY HAS MADE A BEST EFFORT TO DESIGN A

CIRCUIT THAT MEETS CUSTOMER-SUPPLIED SPECIFICATIONS;

HOWEVER, IT REMAINS THE CUSTOMER'S RESPONSIBILITY TO

VERIFY PROPER AND RELIABLE OPERATION IN THE ACTUAL

APPLICATION. COMPONENT SUBSTITUTION AND PRINTED

CIRCUIT BOARD LAYOUT MAY SIGNIFICANTLY AFFECT CIRCUIT

PERFORMANCE OR RELIABILITY. CONTACT LINEAR

TECHNOLOGY APPLICATIONS ENGINEERING FOR ASSISTANCE.

THIS CIRCUIT IS PROPRIETARY TO LINEAR TECHNOLOGY AND

SCHEMATIC

SUPPLIED FOR USE WITH LINEAR TECHNOLOGY PARTS.

SCALE = NONE

www.linear.com

DEMO CIRCUIT 1884A

03/16/2012, 04:46 PM 2 3

LOW POWER OCTAL-ADC

BLTM90XXIY

KIM T.

CLARENCE M.

SIZE

DATE:

IC NO. REV.

SHEET OF

TITLE:

APPROVALS

PCB DES.

APP ENG.

TECHNOLOGY Fax: (408)434-0507

Milpitas, CA 95035

Phone: (408)432-1900

1630 McCarthy Blvd.

LTC Confidential-For Customer Use Only

CUSTOMER NOTICE

LINEAR TECHNOLOGY HAS MADE A BEST EFFORT TO DESIGN A

CIRCUIT THAT MEETS CUSTOMER-SUPPLIED SPECIFICATIONS;

HOWEVER, IT REMAINS THE CUSTOMER'S RESPONSIBILITY TO

VERIFY PROPER AND RELIABLE OPERATION IN THE ACTUAL

APPLICATION. COMPONENT SUBSTITUTION AND PRINTED

CIRCUIT BOARD LAYOUT MAY SIGNIFICANTLY AFFECT CIRCUIT

PERFORMANCE OR RELIABILITY. CONTACT LINEAR

TECHNOLOGY APPLICATIONS ENGINEERING FOR ASSISTANCE.

THIS CIRCUIT IS PROPRIETARY TO LINEAR TECHNOLOGY AND

SCHEMATIC

SUPPLIED FOR USE WITH LINEAR TECHNOLOGY PARTS.

SCALE = NONE

www.linear.com

DEMO CIRCUIT 1884A

03/16/2012, 04:46 PM 2 3

LOW POWER OCTAL-ADC

BLTM90XXIY

KIM T.

CLARENCE M.

SIZE

DATE:

IC NO. REV.

SHEET OF

TITLE:

APPROVALS

PCB DES.

APP ENG.

TECHNOLOGY Fax: (408)434-0507

Milpitas, CA 95035

Phone: (408)432-1900

1630 McCarthy Blvd.

LTC Confidential-For Customer Use Only

CUSTOMER NOTICE

LINEAR TECHNOLOGY HAS MADE A BEST EFFORT TO DESIGN A

CIRCUIT THAT MEETS CUSTOMER-SUPPLIED SPECIFICATIONS;

HOWEVER, IT REMAINS THE CUSTOMER'S RESPONSIBILITY TO

VERIFY PROPER AND RELIABLE OPERATION IN THE ACTUAL

APPLICATION. COMPONENT SUBSTITUTION AND PRINTED

CIRCUIT BOARD LAYOUT MAY SIGNIFICANTLY AFFECT CIRCUIT

PERFORMANCE OR RELIABILITY. CONTACT LINEAR

TECHNOLOGY APPLICATIONS ENGINEERING FOR ASSISTANCE.

THIS CIRCUIT IS PROPRIETARY TO LINEAR TECHNOLOGY AND

SCHEMATIC

SUPPLIED FOR USE WITH LINEAR TECHNOLOGY PARTS.

SCALE = NONE

www.linear.com

DEMO CIRCUIT 1884A

03/16/2012, 04:46 PM 2 3

LOW POWER OCTAL-ADC

BLTM90XXIY

KIM T.

CLARENCE M.

R166

86.6

R166

86.6

R148

86.6

R148

86.6

C72

0.01uF

C72

0.01uF

R112

0201

R112

0201

MABA-007159-000000

4 3

C66

0.01uF

C66

0.01uF

R171

0201

R171

0201

C59

0.01uF

C59

0.01uF

C80

8.2pF

C80

8.2pF

R159

33.2

R159

33.2

R122

0201

R122

0201

R127

33.2

R127

33.2

R160

56nH

T12

MABAES0060

T12

MABAES0060

5 1

T18

MABAES0060

T18

MABAES0060

5 1

J11

CONNEX, 132134

AIN8 J11

CONNEX, 132134

AIN8

R103

0201

R103

0201

T13

MABA-007159-000000

T13

MABA-007159-000000

4 3

C84

0.01uF

C84

0.01uF

R129

33.2

R129

33.2

R143

0201

R143

0201

C102

8.2pF

C102

8.2pF

MABAES0060

5 1

C96

8.2pF

C96

8.2pF

R124

49.9

R124

49.9

R173

0201

R173

0201

C74

8.2pF

C74

8.2pF

MABAES0060

5 1

R130

C92

4.7pF

C92

4.7pF

R118

33.2

R118

33.2

C68

8.2pF

C68

8.2pF

C103

0.01uF

C103

0.01uF

R174

49.9

R174

49.9

C69

2.2uF

0603

C69

2.2uF

0603

R108

33.2

R108

33.2

56nH

R99

33.2

R99

33.2

R146

86.6

R146

86.6

C106

8.2pF

C106

8.2pF

R162

0201

R162

0201

CONNEX, 132134

AIN3 J6

CONNEX, 132134

AIN3

C98

0.01uF

C98

0.01uF

R151

0201

R151

0201

C73

4.7pF

C73

4.7pF

R139

33.2

R139

33.2

T15

MABA-007159-000000

T15

MABA-007159-000000

4 3

56nH

R105

86.6

R105

86.6

C81

2.2uF

0603

C81

2.2uF

0603

R167

33.2

R167

33.2

R95

86.6

R95

86.6

T14

MABAES0060

T14

MABAES0060

5 1

C75

0.1uF0603 C75

0.1uF0603

R125

86.6

R125

86.6 R132

R132

R115

86.6

R115

86.6 R121

R121

R140

C67

4.7pF

C67

4.7pF

R164

49.9

R164

49.9

CONNEX, 132134

AIN5 J8

CONNEX, 132134

AIN5

C89

8.2pF

C89

8.2pF

R169

33.2

R169

33.2

C83

8.2pF

C83

8.2pF

C57

8.2pF

C57

8.2pF

R153

0201

R153

0201

C78

0.01uF

C78

0.01uF

R116

86.6

R116

86.6

C63

0.1uF0603 C63

0.1uF0603

R111

C82

0.1uF0603 C82

0.1uF0603

C100

8.2pF

C100

8.2pF

C90

0.01uF

C90

0.01uF

R154

49.9

R154

49.9

R106

86.6

R106

86.6

R170

R97

86.6

R97

86.6

R158

33.2

R158

33.2

56nH

C93

8.2pF

C93

8.2pF

C65

0.01uF

C65

0.01uF

R142

0201

R142

0201

56nH

R100

C70

0.1uF0603 C70

0.1uF0603

R117

86.6

R117

86.6

C85

0.01uF

C85

0.01uF

R107

86.6

R107

86.6

T11

MABA-007159-000000

T11

MABA-007159-000000

4 3

R98

33.2

R98

33.2

C99

4.7pF

C99

4.7pF

R128

86.6

R128

86.6

R155

86.6

R155

86.6 R161

R161

R147

33.2

R147

33.2

R102

0201

R102

0201

C107

2.2uF

0603

C107

2.2uF

0603

CONNEX, 132134

AIN6 J9

CONNEX, 132134

AIN6

C101

0.1uF0603 C101

0.1uF0603

R165

86.6

R165

86.6 R172

R172

R144

49.9

R144

49.9

MABAES0060

5 1

C104

0.01uF

C104

0.01uF

R149

33.2

R149

33.2

MABA-007159-000000

4 3

R96

86.6

R96

86.6

C61

8.2pF

C61

8.2pF

C71

0.01uF

C71

0.01uF

R123

0201

R123

0201

C87

8.2pF

C87

8.2pF

R113

0201

R113

0201

R156

86.6

R156

86.6

R150

C108

0.1uF0603 C108

0.1uF0603

R138

33.2

R138

33.2

C79

4.7pF

C79

4.7pF

R114

49.9

R114

49.9

CONNEX, 132134

AIN4 J7

CONNEX, 132134

AIN4

R157

86.6

R157

86.6

C86

4.7pF

C86

4.7pF

R104

49.9

R104

49.9

R135

86.6

R135

86.6 R141

R141

C58

0.01uF

C58

0.01uF

R168

86.6

R168

86.6

C94

2.2uF

0603

C94

2.2uF

0603

R131

0201

R131

0201

R119

33.2

R119

33.2

C88

0.1uF0603 C88

0.1uF0603

R145

86.6

R145

86.6 R152

R152

R126

86.6

R126

86.6

MABA-007159-000000

4 3

C97

0.01uF

C97

0.01uF

C91

0.01uF

C91

0.01uF

T10

MABAES0060

T10

MABAES0060

5 1

56nH

T16

MABAES0060

T16

MABAES0060

5 1

C64

8.2pF

C64

8.2pF

CONNEX, 132134

AIN2 J5

CONNEX, 132134

AIN2

T17

MABA-007159-000000

T17

MABA-007159-000000

4 3

R120

56nH

J10

CONNEX, 132134

AIN7 J10

CONNEX, 132134

AIN7

C60

4.7pF

C60

4.7pF

C76

8.2pF

C76

8.2pF

CONNEX, 132134

AIN1 J4

CONNEX, 132134

AIN1

R163

0201

R163

0201

R136

86.6

R136

86.6

C62

8.2pF

C62

8.2pF

C95

0.1uF0603 C95

0.1uF0603

R133

0201

R133

0201

R109

33.2

R109

33.2

R110

R101

C77

0.01uF

C77

0.01uF

R134

49.9

R134

49.9

C105

4.7pF

C105

4.7pF

R137

86.6

R137

86.6

56nH

MABA-007159-000000

4 3

SCHEMATIC DIAGRAMS

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