AJA HD10AM User manual

HD10AM
HD/SD 8-Channel AES
Embedder/Disembedder
User Manual
June 29, 2006 P/N 101661-00
Test Equipment Depot - 800.517.8431 - 99 Washington Street Melrose, MA 02176 - FAX [phone] - TestEquipmentDepot.com

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AJA HD10AM HD/SD 8-Ch AES Embedder/Disembedder User Manual — Introduction
Introduction
The HD10AM is a dual rate 8 channel AES audio Embedder/Disembedder. The
Disembedder is always functional, outputting group 1 and 2—or 3 and 4 (user
selectable) when present on the input SDI. This is independent of the embedding
process. The Embedder is user selectable, on a channel pair basis, to either “pass” SDI
input audio or embed input AES audio from the breakout cable. The ability to pass
incoming ancillary data makes it possible to embed up to 16 channels of audio by
cascading two units: the first embedding to groups 1/2, and the second embedding to
groups 3/4—or vice versa. It also means that any ancillary data packets in compliance
with SMPTE 291M will be passed through as-is.
With the SRC dipswitch setting ON, AES inputs are sample rate converted to a
48KHz rate synchronous to the video input.
The HD10AM automatically detects and configures to the input video standard. The
Lock LED glows red for HD and green for SD formats.
With the SRC dipswitch setting OFF, data packets are passed from the AES inputs to
embedded ancillary packets un-altered. This is done according to SMPTE 337M.
48KHz synchronous ancillary packets are disembedded and passed unaltered to the
AES outputs regardless of the position of the SRC dipswitch.
All AES3-2003 defined channel status bits are passed through unaltered in both the
embed and dis-embed directions—except for the sample rate field, which is always
set to 48KHz. The channel status CRC is re-calculated and inserted into the
bitstream. This ability, along with a very small audio embed/disembed latency,
ensures 100 percent compatibility with Dolby® bitstreams.
Features
• Dual rate HD-SDI/SDI Embedder/Disembedder
• 8 Channel AES I/O
• Supplied breakout cable for balanced AES - XLR connectors
• HD-SDI/SDI input
• 2 HD-SDI/SDI equalized outputs (following input)
• Dipswitch configuration
• 5-18VDC Power

4
Block Diagram
HD10AM, Block Diagram
I/O Connections
HD10AM and Cable, Side View
EQ
Cable Driver
Cable Driver
Embed 1/2, 3/4, 5/6, 7/8
Embed and Pass-through
Packet Processor
Embed Group 1/2, 3/4
AUX
SRC
SRC Bypass
AES Input 1
(Ch 1/2 or 9/10)
XLR Breakout Cable
XLR Breakout Cable
HD-SDI Out 1
HD-SDI Out 2
SRC
AES Input 2
(Ch 3/4 or 11/12)
SRC
AES Input 3
(Ch 5/6 or 13/14)
SRC
AES Input 4
(Ch 7/8 or 15/16)
AES Output 1
(Ch 1/2 or 9/10)
AES Output 2
(Ch 3/4 or 11/12)
AES Output 3
(Ch 5/6 or 13/14)
AES Output 4
(Ch 7/8 or 15/16)
Dis-
Embedder
Disembed
Group 1/2, 3/4
Configuration
Determined by
DIP switch on
other side of
Converter
AES I/O
+ 5 to 18VDC
Power
Input
HD/SD-SDI Input
HD/SD-SDI
HD/SD-SDI
Output 1
Output 2
BNC
BNC
BNC
D-connector
(attaches to
supplied cable)
Cable
Not Shown
To Scale
Test Equipment Depot - 800.517.8431 - 99 Washington Street Melrose, MA 02176 - FAX [phone] - TestEquipmentDepot.com

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AJA HD10AM HD/SD 8-Ch AES Embedder/Disembedder User Manual — User Controls
User Controls
The user interface for the HD10AM is an 8-switch
DIP accessible through a cut-out in the bottom of
the unit. Use the DIP switches to configure how the
AES embedding and disembedding functions.
Note:
The combination of the AUX switch setting
(switch 8) and the other switches determines the
overall operation of the HD10AM.
The exact function of each DIP switch and what it
controls is described on the following pages.
Factory default switch settings are all in the leftmost
position.
Switch 1 (EMBD 1/2)—Controls audio embedding for channels 1/2
:
Switch 2 (EMBD 3/4)—Controls audio embedding for channels 3/4
:
Switch 3 (EMBD 5/6)—Controls audio embedding for channels 5/6
:
LEFT RIGHT
Overwrite or embed new
channel 1/2 packets
If AUX=LEFT: Pass any channel 1/2
packets on input SDI
If AUX=RIGHT: Delete all channel
1/2 packets from input SDI
LEFT RIGHT
Overwrite or embed new
channel 3/4 packets
If AUX=LEFT: Pass any channel 3/4
packets on input SDI
If AUX=RIGHT: Delete all channel
3/4 packets from input SDI
LEFT RIGHT
Overwrite or embed new
channel 5/6 packets
If AUX=LEFT: Pass any channel 5/6
packets on input SDI
If AUX=RIGHT: Delete all channel
5/6 packets from input SDI
1 2 3 4 5 6 7 8
DIP Switch Setting
LEFT RIGHT

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Switch 4 (EMBD 7/8)—Controls audio embedding for channels 7/8
:
Switch 5 (EMBD GRP)—Select AES channel mapping for embedded
groups
:
Switch 5 set LEFT, Embed to Groups 1 and 2, AES Channel Mapping:
Switch 5 set RIGHT, Embed to Groups 3 and 4, AES Channel Mapping:
LEFT RIGHT
Overwrite or embed new
channel 7/8 packets
If AUX=LEFT: Pass any channel 7/8
packets on input SDI
If AUX=RIGHT: Delete all channel
7/8 packets from input SDI
LEFT RIGHT
Embed to Groups 1 and 2 as
specified in 272M and 299M
(see following table)
Embed to Groups 3 and 4 as
specified in 272M and 299M
(see following table)
AES
Input
Channel
SDI
Embedded
Group
Channel
1 —>
2 —>
1
1
1
2
3 —>
4 —>
1
1
3
4
5 —>
6 —>
2
2
5
6
7 —>
8 —>
2
2
7
8
AES
Input
Channel
SDI
Embedded
Group
Channel
1 —>
2 —>
3
3
9
10
3 —>
4 —>
3
3
11
12
5 —>
6 —>
4
4
13
14
7 —>
8 —>
4
4
15
16

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AJA HD10AM HD/SD 8-Ch AES Embedder/Disembedder User Manual — User Controls
Switch 6 (DISEMBD GRP)—Select AES channel mapping for disem-
bedding groups
Switch 6 set LEFT, disembed from Groups 1 and 2, AES Channel Mapping:
Switch 6 set RIGHT, disembed from Groups 3 and 4, AES Channel Mapping:
Switch 7 (SRC)—Control whether input AES audio is passed through
the sample rate converters
:
Note:
Switch 7 affects all four inputs. For proper operation with the SRC bypassed, the
AES input timing must be externally synchronized to the input SDI.
LEFT RIGHT
Disembed from Groups 1 and 2
as specified in 272M and 299M
(see following table)
Disembed from Groups 3 and 4 as
specified in 272M and 299M
(see following table)
SDI
Embedded
Input
Group
Channel AES Output
Channel
1
1
1 —>
2 —>
1
2
1
1
3 —>
4 —>
3
4
2
2
5 —>
6 —>
5
6
2
2
7 —>
8 —>
7
8
SDI
Embedded
Input
Group
Channel AES Output
Channel
3
3
9—>
10—>
1
2
3
3
11—>
12—>
3
4
4
4
13—>
14—>
5
6
4
4
15—>
16—>
7
8
LEFT RIGHT
Pass all input AES audio
through the sample rate
converter before embedding
(for example, PCM audio from a
sync source)
Do not pass any input AES audio
through the sample rate converter
before embedding (for example,
Dolby® Digital)
Test Equipment Depot - 800.517.8431 - 99 Washington Street Melrose, MA 02176 - FAX [phone] - TestEquipmentDepot.com

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Switch 8 (AUX)—Control whether ancillary horizontal data is passed
or deleted from input (used with switches 1 through 4)
Installation
Typically, HD10AM installation consists of the following:
1. disconnect +5VDC from the converter
2. configure the DIP switch for the desired equipment configuration
3. connect video equipment to the converter BNCs
4. apply +5VDC power to the converter (AJA power supply model DWP)
Specifications
LEFT RIGHT
Whenever possible, pass all
incoming ancillary data except
packets marked for deletion
Delete all incoming horizontal
ancillary data before embedding
any new audio packets
Item Specification
Video Formats HD SMPTE 292/296/274M
SD SMPTE 259M
(Automatic Configuration)
Audio Data Formats AES3-2003
SMPTE 337M
Video Input HD-SDI or SDI BNC
Video Outputs (equalized) HD-SDI or SDI BNC, 2 x BNC
Audio Inputs 4 x AES3 110 ohm XLR, Pro format
Audio Outputs 4 x AES3 110 ohm XLR, Pro format
Embedded Audio SMPTE 272M (SD): 20-bit, 48KHz synchronous
SMPTE 299M (HD): 24 bit, 48KHz synchronous
Video Processing Delay HD Mode: 7 μ S
SD Mode: 19 μ S
Audio Processing Delay Disembed Delay: 290 μ S
Embed Delay (SRC OFF): 290 μ S
Embed Delay (SRC ON): 1500 μ S
Sample Rate Converter
Resolution
24-bits
User Controls External Dipswitch:
Embedder on/off, Ch pairs 1/2 - 7/8
Input group select, 1/2, 3/4
Output Group Select, 1/2, 3/4
SRC Bypass
AUX (pass or delete incoming ancillary data)
Size 5.8" x 3.1" x 1 (147 x 79 x 25mm)
Power 5-18V, 5 watts. Requires power supply.

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AJA HD10AM HD/SD 8-Ch AES Embedder/Disembedder User Manual — Specifications
Test Equipment Depot - 800.517.8431 - 99 Washington Street Melrose, MA 02176 - FAX [phone] - TestEquipmentDepot.com