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 781.665.0780 - TestEquipmentDepot.com

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

Block Diagram

HD10AM, Block Diagram

I/O Connections

HD10AM and Cable, Side View

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

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

Output 1

Output 2

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 781.665.0780 - TestEquipmentDepot.com

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

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 —>

3 —>

4 —>

5 —>

6 —>

7 —>

8 —>

AES

Input

Channel

SDI

Embedded

Group

Channel

1 —>

2 —>

3 —>

4 —>

5 —>

6 —>

7 —>

8 —>

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 —>

2 —>

3 —>

4 —>

5 —>

6 —>

7 —>

8 —>

SDI

Embedded

Input

Group

Channel AES Output

Channel

9—>

10—>

11—>

12—>

13—>

14—>

15—>

16—>

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 781.665.0780 - TestEquipmentDepot.com

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:

disconnect +5VDC from the converter

conﬁgure the DIP switch for the desired equipment conﬁguration

connect video equipment to the converter BNCs

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

SD Mode: 19

Audio Processing Delay Disembed Delay: 290

Embed Delay (SRC OFF): 290

Embed Delay (SRC ON): 1500

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.

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 781.665.0780 - TestEquipmentDepot.com

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