HOLT HI?8470 User manual

QSG-8476-Repeater_A HOLT INTEGRATED CIRCUITS 10/25/18
1
23351 Madero,
Mission Viejo, CA
92691. USA.
Tel: + 1 949 859 8800
Fax: + 1 949 859 9643
Email: [e-mail]
Web: www.holtic.com
HI-8470/HI-8476
ARINC 429 Repeater
Evaluation Board
Quick Start Guide
Oct 25, 2018

QSG-8476-Repeater_A HOLT INTEGRATED CIRCUITS 10/25/18
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INTRODUCTION
The Holt ARINC Repeater Board contains the Holt HI-8470 and HI-8476 devices, these are ARINC 429
receiver and transmitter devices respectively. In this project they are combined together to produce an
ARINC 429 repeater or regenerator. The board runs from a single 3.3V ± 5% supply voltage. The
Repeater Evaluation Module requires no software for control; all functions are set by hardware DIP
switches.
The HI-8476 receiver has parallel outputs that are connected to the HI-8470 parallel inputs, see block
diagram below:
HI-8476 HI-8470
ARINC 429
INPUT
1MHz
Clock
LOW/HIGH SPEED
TXENB
ARINC 429
OUTPUT
CLK
CLK UPDATE
BIT32N
PARITY
BITS 10:1
nBITS 26:11
BITS 31:27
HCT
74
3.3V
3.3V 10K
PARITY
CHECK
3.3V
R
D
>
Q

Q
HCT
74
R
D
>
Q

Q
LBL
7:0
FLT
7:0
SDE
SD9:10
3.3V
28V/3.3V
DC/DC
Converter
28V
3.3V
GND 10K GND10K

QSG-8476-Repeater_A HOLT INTEGRATED CIRCUITS 10/25/18
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The picture below shows the ARINC repeater board. At the top right is a 28V to 3.3V DC-DC converter
that gives the option of running from an aircraft type 28VDC instead of a 3.3VDC supply.
More details about the design of the repeater are available in the Holt ARINC repeater white paper.
This guide summarizes how to get set up and running quickly.
KIT CONTENTS
This User Guide
ARINC Repeater Evaluation Board

QSG-8476-Repeater_A HOLT INTEGRATED CIRCUITS 10/25/18
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Switch Functions
SWITCH
NAME
DEFAULT
DESCRIPTION
SW1
RXSPEED
TXSPEED
PARITY
BIT32N
SDE
SD9
SD10
nMR
ON
ON
OFF
OFF
OFF
OFF
OFF
OFF
Receive ARINC 429 speed ON = High, OFF = Low
Transmit ARINC 429 speed ON = High, OFF = Low
HI-8476 Parity Checking ON = Enable, OFF = Disable
Use HI-8476 Parity bit to disable HI-8470 transmission
SD bit filtering enable ON = Enabled
SD9 filtering enable ON = Enabled
SD10 filtering enable ON = Enabled
Master Reset ON = Reset
SW2
LABEL 0:7
All OFF
ARINC 429 label bits 0:7.

SW3
FILT 0:7
All OFF
Sets ARINC 429 message filter bits.

Connector Functions
CONNECTOR
NAME
PIN
DESCRIPTION
J1
GND
TXB
TXA
1
2
3
GND
TXB ARINC negative output
TXA ARINC positive output
J2
GND
RXA
RXB
1
2
3
GND
RXA ARINC negative input
RXB ARINC positive input
J5
GND
+28V
1
2
GND
+28V, 28VDC converter supply (link J6)

QSG-8476-Repeater_A HOLT INTEGRATED CIRCUITS 10/25/18
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Jumper Functions
JUMPER
DEFAULT
NAME
DESCRIPTION
J4
OFF

When l
J6
OFF
VLOGIC/3.3V
When using 28V supply install J6, this links converter
3.3V output to VLOGIC.
Board Set Up
1. Make sure the link and switch positions are in the default state as listed in the tables above.
Ensure that link J6 is off; connect a 3.3V supply between the VLOGIC and GND test points, the
current should be ~50mA, t If preferred, the board can be
powered from a nominal +28V supply. To configure for this; install J6 and connect a 28V
supply between the GND and +28V terminals of J6.
2. Using an ARINC 429 source, connect the positive side of the signal to the RXA terminal and
the negative to the RXB terminal. onnect an oscilloscope to
the ARINC 429 outputs, TXA and TXB for best results; use the scope in differential mode.
Observe the ARINC 429 output waveformshould
look similar to the waveform shown below:

QSG-8476-Repeater_A HOLT INTEGRATED CIRCUITS 10/25/18
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3. . The ARINC output should now be the same as the ARINC input; the
board is repeating the input signal. Change SW1 TXSPEED to OFF. The output data rate
should be low speed, the data content should be the same as before. Now change SW1
RXSPEED to OFF and input a Low speed ARINC signal, the output data should be the same as
the low speed data input.
4. If desired, the repeater can selectively repeat ARINC words according to the LABEL content.
The LABEL switch selects the LABEL to be retransmitted and FILT switch selects the LABEL bits
that are evaluated during the filtering process. For example; if only messages with LABEL =
0000001 were required to be repeated, then the LABEL switch SW2 is set to 0000001 and
FILT switch SW3 set to 11111111. Note that on the board the switch bits are in the order of
LSB to the left, MSB to the right. If all words with LABEL bits[1:0] = 11 should be repeated,
then the LABEL switch is set to 00000011 and FILT switch is set to 00000011. In a similar
manner the SD9 and SD10 bits can be used to select word for transmission. See HI-8476
datasheet for more details.
5. With the SW1 PARITY switch in default mode, the repeater will re-transmit all valid ARINC
words whether the parity is odd or even. When set to ON, parity checking is enabled, so only
odd parity words are retransmitted.

QSG-8476-Repeater_A HOLT INTEGRATED CIRCUITS 10/25/18
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UPDATE
CLK
VLOGIC
U4B
74HC74
D
12
CLK
11 Q9
Q8
PRE
10 CLR
13
U4A
74HC74
D
2
CLK
3Q5
Q6
PRE
4CLR
1
321 4 5 6
ON (CLOSED)
87
SW2
LLA2 LLA1 LLA0 LLA7 LLA6 LLA5 LLA4 LLA3
R5
100k
1
2 3 4 5 6 7 8 9
CLK
R10
39 TP6
C11
10nF
VLOGIC
Y1
OSC, 4 PIN, 1MHz 3.3V
E/D
1
GND
2OUT 3
VDD 4TP7
GND
CLK
GND
FILT7 FILT5 FILT6 FILT3 FILT4 FILT2 FILT0 FILT1
TP8
TP11
CLK
TXENB
TXENB
SDATA
SCLK
BIT32N
GND
TP3
VLOGIC
LLA1 LLA0 LLA2
LLA3
LLA4
LLA5
LLA6
LLA7
TP9
C7
.1uF, 50V
C4
.1uF, 50V
VLOGIC
NEAR U1
NEAR U2
TP10
TXENB
VLOGIC
TP12
TP13
ON FOR PARITY CHECKING
CLK
R1
33K
nMR
Title
Size Document Number Rev
Date: Sheet of
<Doc> <RevCode>
ARINC 429 REPEATER using HI-8476 AND HI-8470
B
1 1Tuesday, October 22, 2013
321 4 5 6
ON (CLOSED)
87
SW1
SD10 SDE
SDE SD9 SD10
U1
HI-8476 128-PQFP
VDD
1
MR
2
CLKIN
3
SPEED
4
PARITY
5
SCLK
6
SDAT
7
TESTDIS
8
TESTOUT
9
NC
10
RXA-R
11
NC
12
NC
13
NC
14
NC
15
NC
16
NC
17
RXB-R
18
NC
19
LLBEN
20
LLCEN
21
LLB7
22
LLA7
23
LLB6
24
LLA6
25
LLB5
26
LLA5
27
LLB4
28
LLA4
29
LLB3
30
LLA3
31
LLB2
32
NC
33
NC
34
NC
35
LLA2
36
LLB1
37
LLA1
38
LLB0
39
LLA0
40
SDE
41
SD10
42
SD9
43
LLC7
44
FILT7
45
LLC6
46
FILT6
47
LLC5
48
FILT5
49
LLC4
50
FILT4
51
LLC3
52
FILT3
53
LLC2
54
FILT2
55
LLC1
56
FILT1
57
LLC0
58
FILT0
59
GND
60
UPDATE
61
NC
62
NC
63
NC
64
BIT1 65
BIT1 66
BIT2 67
BIT2 68
BIT3 69
BIT3 70
BIT4 71
BIT4 72
BIT5 73
BIT5 74
BIT6 75
BIT6 76
BIT7 77
BIT7 78
BIT8 79
BIT8 80
BIT9 81
BIT9 82
BIT10 83
BIT10 84
BIT11 85
BIT11 86
BIT12 87
BIT12 88
BIT13 89
BIT13 90
BIT14 91
BIT14 92
BIT15 93
BIT15 94
BIT16 95
BIT16 96
BIT17 97 BIT17 98 BIT18 99 BIT18 100 BIT19 101 BIT19 102 BIT20 103 BIT20 104 BIT21 105 BIT21 106 BIT22 107 BIT22 108 BIT23 109 BIT23 110 BIT24 111
BIT24 112 BIT25 113 BIT25 114 BIT26 115 BIT26 116 BIT27 117 BIT27 118 BIT28 119 BIT28 120 BIT29 121 BIT29 122 BIT30 123 BIT30 124 BIT31 125 BIT31 126
BIT32 127 BIT32 128
R12
13K 1/8W
R13
13K 1/8W U2
HI-8470 100 PQFP
VWET
1
SI0
2
SI1
3
SI2
4
SI3
5
SI4
6
SI5
7
SI6
8
SI7
9
SI8
10
SI9
11
SI10
12
SI12
14
SI13
15
SI14
16
SI15
17
GND
18
TST0
19
TST1
20
S00
21
S01
22
S02
23
S03
24
S04
25
S05
26
S06
27
S07
28
S010
31
S011
32
S012
33
S013
34
S014
35
S015
36
SPEED
37
MRN
38
CLKIN
39
LBL0
40
LBL1
41
LBL2
42
LBL3
43
LBL4
44
LBL5
45
LBL6
46
LBL7
47
BIT9
48
BIT10
49
BIT27
50
BIT28 51
BIT29 52
BIT30 53
BIT31 54
TMR7 55
TMR6 56
TMR5 57
TMR4 58
TMR3 59
TMR2 60
TMR1 61
TMR0 62
TXBDIG 63
TXADIG 64
GNDB 65
TXB 66
TXA 67
GNDA 68
TXENB 69
SEL0 70
SEL1 71
SEL2 72
SEL3 73
SEL4 74
SI11
13
S08
29
S09
30
SEL5 75
SEL6 76 SEL7 77 SEL8 78 SEL9 79
SEL10 80 SEL11 81 SEL12 82 SEL13 83 SEL14 84 SEL15 85
V- 86
CN+ 87
CN- 88
GND 89
VDD 90
CP- 91
CP+ 92
V+ 93
EXTTHSOG 94
TSHLO0G 95 THSHIOG 96
EXTTHSVO 97
THSLOVO 98
THSHIVO 99
VLOGIC 100
R4
33K
R6
33K
SD9
R7
33K
U3 OKI-78SR-3.3/1.5-W36 H-C
VIN
1VOUT 3
GND
2
R9
330
TP5
D1
POWER C14
.1uF, 50V
TP4
J5
+28V
1
2
TP2TP1 J1
ARINC OUT
1
2
3
C8
.1uF, 50V
BIT1
BIT2
BIT4
BIT3
BIT7
BIT6
BIT5
BIT10
BIT8
BIT9
BIT12
BIT11
R3
33K
BIT14
BIT13
BIT16
BIT15
BIT17
R2
33K
BIT19 BIT18 BIT20 BIT23 BIT22 BIT21
PARITY_CHK
RxSPEED
BIT25
BIT24
BIT27 BIT26
PARITY_CHK
BIT30 BIT29 BIT28
TxSPEED RxSPEED
BIT31
+
C9
1uF,50V
+
C10
47uF,6.3V
BIT1 BIT2 BIT3 BIT4 BIT5
VLOGIC
BIT6 BIT7 BIT8
TxSPEED
BIT9
3V3
VLOGIC
BIT10
J4
TEST 1's
1 2
VLOGIC
BIT27
BIT28
BIT29
BIT30
3V3
BIT31
J6
3.3V 1
2
VLOGIC
BIT11
BIT12
VLOGIC
BIT14
BIT15
nMR
nMR
BIT16
BIT17
BIT18
BIT19
BIT20
BIT21
BIT22
BIT23
BIT24
BIT25
BIT26
BIT32N
J2
ARINC IN
1
2
3
BIT13
VLOGIC
nMR
R11
33K
TXB
TXA
RXB
RXA
VLOGIC
TXBTXA
+V
+
C2
47uF,6.3V
-V
C1
47uF,10V,MLC
C6
4.7uF,10V,MLC
C3
47uF,10V,MLC
C5
4.7uF,10V,MLC
VLOGIC
321 4 5 6
ON (CLOSED)
87 SW3
FILT2 FILT1
R8
100k
1
2 3 4 5 6 7 8 9
FILT3 FILT0 FILT7 FILT6 FILT5 FILT4
GND

QSG-8476-Repeater_A HOLT INTEGRATED CIRCUITS 10/25/18
8
HI-8470 & 76 Arinc Repeater Board
11-Dec-13
Qty
Description
Reference
DigiKey
Mfr P/N
4
Capacitor, Ceramic 100nF 10% 50V X7R 0603
C4,C7,C8,C14
399-5089-1-ND
Kemet C0603C104K5RACTU
1
Capacitor, Ceramic 10nF 10% 50V X7R 0603
C11
399-1091-1-ND
Kemet C0603C103K5RACTU
2
Capacitor Ceramic 4.7uF 10V 10% X5R 0603
C5,C6
445-7482-1-ND
TDK
CGB3B1X5R1A475K055AC
1
Capacitor Ceramic 1uF 50V 10% X7R 1210
C9
490-1863-1-ND
Murata
GRM32RR71H105KA01L
2
Capacitor Tantalum 47uF 6.3V 20% 1210
C2,C10
493-4094-1-ND
Nichicon F920J476MBA
Nichicon F920J476MBA
2
Capacitor Ceramic 47uF 10V 20% JB 0805
C1,C3
445-11420-1-ND
TDK C2012JB1A476M125AC
5
Conn Shunt 2 Position, 0.1" Pitch
N/A
A31697-ND
TE 2-382811-1
2
Header, Male 1x2, .1" Pitch
J5,J6
S1012E-02-ND
Sullins S1012E-02-ND
3
Header, Male 1x3, .1" Pitch
J1,J2,J4
S1012E-03-ND
Sullins S1012E-09-ND
2
Res 39 Ohm 1/10W 5% 0603 SMD
R10,R11
P39GCT-ND
Panasonic ERJ-3GEYJ390V
2
Res 1K Ohm 1/10W 5% 0603 SMD
R2,R8
P1.0KGCT-ND
Panasonic ERJ-3GEYJ102V
1
Res 330 Ohm 1/10W 5% 0603 SMD
R9
P330GCT-ND
Panasonic ERJ-3GEYJ331V
2
Res 13K Ohm 1/10W 5% 0603 SMD
R12,R13
P13KGCT-ND
Panasonic ERJ-3GEYJ13KV
7
Res 33K Ohm 1/10W 5% 0603 SMD
R1,R2,R3,R4,R6,R7,R11
P33KGCT-ND
Panasonic ERJ-3GEYJ333V
5
Res 100K Ohm 1/10W 5% 0603 SMD
R14,R15,R16,R18,R19
P100KGCT-ND
Panasonic ERJ-3GEYJ104V
2
Res Array 100K Ohm 8 RES 9SRT
R5,R8
752-091-100KPCT-ND
CTS 752091104GPTR7
1
LED Green Clear 0805 SMD
D1
160-1179-1-ND
LiteOn LTST-C170GKT
3
Switch DIP Half Pitch 8 Pos
SW1,SW2,SW3
CT2188LPST-ND
CTS 218-8LPST
1
Osc 1.0 Mhz 3.3V HCMOS, 5x7 mm SMD
Y1
631-1122-1-ND
FOX FXO-HC735-1
13
Test Point PC Mini .040"D Black
TP1-TP13
5001K-ND
Keystone 5011
1
HI-8476 128 PQFP Arinc Receiver
U1
HOLT IC
Holt IC
1
HI-8470 100 PQFP Arinc Transmitter
U2
HOLT IC
Holt IC
1
IC Single Gate SOT-23-5
U4
296-1240-1-ND
TI SN74LVC74ADR
1
Converter DC/DC 4.95W 36VIn 3.3VOut
U3
OKI-78SR-3.3/1.5-W36
H-C
OKI-78SR-3.3/1.5-W36 H-C
4
Bumpon Cylindrical .312X.200 Black
N/A
SJ5746-0-ND
3M SJ61A1

QSG-8476-Repeater_A HOLT INTEGRATED CIRCUITS 10/25/18
9
REVISION HISTORY
Revision
Date
Description of Change
QSG-8476, Rev. New
12/11/13
Initial Release
QSG-8476-Repeater,
Rev. New
01/20/14
Change document name from QSG-8476_New to
QSG-8476-Repeater_New
QSG-8476-Repeater,
Rev. New
10/25/18
Correct typo in Connector Functions table on p. 4. J2,
RXA and RXB pins reversed.