Grass Valley 8950DAC User Manual

8950DAC

COMPONENT VIDEO D-TO-A CONVERTER

Instruction Manual

SOFTWARE VERSION 4.0.2

071060403
JUNE 2005

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Nevada City, CA 95959­7900 USA

www.thomsongrassvalley.com

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2 8950DAC Instruction Manual

Contents

Preface

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5

About This Manual . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5

8950DAC Component Digital to Analog Converter

Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7

Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8

Frame Capacity . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8

Module Placement in the 8900 Frame. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8

Cabling . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10

Loop-through Input. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10

Analog Video Outputs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10

Analog Composite Sync Output . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10

Power Up . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11

Operation Indicator LEDs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11

Configuration. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14

Configuration Summary. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14

Format Selections . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14

Level Adjustments . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15

Timing/Blanking Adjustments . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15

Standard Recognition . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16

Setup . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16

User Settings Save and Recall . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16

Local On-board Configuration Switches and LEDs . . . . . . . . . . . . . . . . . . . . . . . 19

On-board Module Configuration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20

Remote Configuration and Monitoring . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22

8900NET Module Information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22

Newton Control Panel Configuration. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22

Web Browser Interface . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23

8950DAC Links and Web Pages . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25

Status Web Page. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26

Levels Web Page . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27

Timing/Blanking Web Page. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 29

Standard Selections Web Page. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30

User Settings Web Page . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 31

Slot Config Web Page . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 32

Software Update Web Page . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 34

Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 35

Service. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 37

Status Monitoring . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 38

LEDs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 38

Frame Alarm . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 39

Web Browser Interface . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 39

SNMP Reporting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 40

8950DAC Instruction Manual 3

Contents

Functional Description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 41

Serial Input and Deserializer. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 42

Phase Lock Loop (PLL) 2 Times Clock Generator . . . . . . . . . . . . . . . . . . . . . . . . 42

Digital to Analog Converter (DAC). . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 42

Output Low Pass Filters (LPF) and Buffers . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 42

Delay Line . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 42

Embedded Processor . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 42

Digital Signal Processing FPGA . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 43

Power Handling . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 43

Index

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 45

4 8950DAC Instruction Manual

Preface

About This Manual

This manual describes the features of a specific module of the Gecko 8900
Signal Processing System. As part of this module family, it is subject to
Safety and Regulatory Compliance described in the Gecko 8900 Series
frame and power supply documentation (see the 8900TX/8900TF/8900TFN

Frames Instruction Manual

).

8950DAC Instruction Manual 5

Preface

6 8950DAC Instruction Manual

8950DAC Component Digital to Analog Converter

Introduction

The 8950DAC converts serial component digital signals to analog for use in
applications such as component analog switchers, display on analog GBR
monitors, or recording on analog component VTRs. The module provides
two sets of analog component outputs.

The 8950DAC is compact and fits in the 8900 frame which holds up to 10
modules in 2 RU.

Key features include:

• 10-bit D-to-A,

• Four times oversampling for outstanding resolution,

• Error detection and handling (EDH),

•Two lines output delay adjustment,

• Supports all popular Component Analog Video (CAV) formats,

• Passive loop-through input,

• Part of the 8900 family of audio and video modules, and

•With an 8900NET module installed, provides support for:

•SNMP monitoring,

•Remote web browser, and

•Newton Control Panel interface.

8950DAC Instruction Manual 7

Installation

Installation

Frame Capacity

Installation of the 8950DAC module is a simple process of:

• Placing the module in the proper frame slot, and

•Cabling and terminating signal ports.

The 8950DAC module can be plugged in and removed from an 8900 Series
frame with power on. When power is applied to the module, LED indica­tors reflect the initialization process (see

The maximum number of 8900 modules allowed in a frame is determined
by frame cooling capacity. Table 1 provides the power capacity, cooling
capacity, and maximum module count for the 8950DAC in each frame type.

Power Up

on page 11).

Table 1. Power, Cooling, and Module Capacity of 8900 Frames

Capacity Calculated

Power (W) 100 100 100
Recommended Module Cooling (W) 30 90 90
8950DAC Modules 5 10 10

Note

Module capacity figures assume no other modules are in the frame.
If the maximum number of modules a frame can handle is less than ten,
provide as much space between the modules as possible.

8900TX

Module Placement in the 8900 Frame

There are ten cell locations in the frame to accommodate either analog or
digital modules. These are the left ten locations. Refer to Figure 1 on page 9.

The two cells on the right are allocated for the power supplies. For addi­tional information concerning the Power Supply module, refer to the 8900
Power Supply manual.

The third cell from the right is allocated for the Frame Monitor or 8900NET
Network Interface module. These modules provide health bus monitoring
and control options.

Frame

8900TF

Frame

8900TFN

Frame

8 8950DAC Instruction Manual

1.

2.

3.

Figure 1. 8900 Series Frame

Installation

8208_04r1

10

J1 J2

O

J3 J4

U
T

J5 J6

J7 J8

J9 J10

IN

J2

J1 J2

O

J4

J3 J4

J6

J5 J6

J8

J7 J8

J9 J10

IN

Any 8900 Module

Power

Supplies

Frame Controller or

(only)

8900NET Network

Interface Module

8900 modules are interchangeable within the module cells. There are 10
BNC connectors in each cell’s I/O group. The functional assignment of
each connector in a group is determined by the module that is placed in
that cell. The maximum number of modules a Gecko 8900 frame can accept
is ten. Figure 2 illustrates the rear connector plate for an 8900 Series frame.

Figure 2. 8900 Series Frame Rear Connectors

9

U
T

8

J1 J2

O

J3 J4

U
T

J5 J6

J7 J8

J9 J10

IN

7

J1 J2

J2

O

J3 J4

J4

U

T

J5 J6

J6

J7 J8

J8

J9 J10

IN

6

J1 J2

O

J3 J4

U
T

J5 J6

J7 J8

J9 J10

IN

5

J1 J2

J2

O

J3 J4

J4

U
T

J5 J6

J6

J7 J8

J8

J9 J10

IN

4

J1 J2

O

J3 J4

U

T

J5 J6

J7 J8

J9 J10

IN

3

J2

J1 J2

O

J4

J3 J4

U

T

J6

J5 J6

J8

J7 J8

J9 J10

IN

2

J1 J2

O

J3 J4

U

T

J5 J6

J7 J8

J9 J10

IN

J1 J2

J3 J4

J5 J6

J7 J8

J9 J10

1

O
U

T

0604-03

IN

To install a module in the frame:

Insert the module, connector end first, with the component side of the
module facing to the right and the ejector tab to the top.

Verify that the module connector seats properly against the backplane.

Press the ejector tab in to seat the module in place.

8950DAC Instruction Manual 9

Installation

Cabling

Loop-through Input

Y/G Output 1

B-Y/B Output 1

R-Y/R Output 1

Composite Sync Output 1

Note

At the back of this manual (hard-copy only) are die-cut overlay cards that can
be placed over the rear connector BNCs to identify the specific 8950DAC con­nector functions.

Connect an input source to one of the loop-through input connectors, J9 or
J10 (see Figure 3). The 8950DAC input accepts SMPTE 259M 10-bit serial
4:2:2 component video. Terminate the unused connector into 75 Ω if the
signal is not looped to other equipment.

Figure 3. 8950DAC Input/Output Connectors

Y/G Output 2

J2

J2J1

B-Y/B Output 2

J3

J5

O

U
T

J4

J6

J4

R-Y/R Output 2

J6

Composite Sync Output 2

J7

J9 J10

Loop-through

SDI 4:2:2 Input

IN

Analog Video Outputs

The 8950DAC has two sets of three analog component video output BNCs:

• J1 and J2 for Y/G output 1 and 2,

• J3 and J4 for B-Y/B output 1 and 2, and

• J5 and J6 for R-Y/R output 1 and 2.

The destination equipment should have a 75
through inputs that are terminated into 75

Analog Composite Sync Output

The 8950DAC generates analog composite sync (C Sync) from the serial
video input and provides two sync signal outputs on BNCs J7 and J8.

J8

J8

0604-02

Ω input impedance or loop

Ω

.

10 8950DAC Instruction Manual

Power Up

Operation Indicator LEDs

Power Up

The various front LED indicators and configuration switches are illustrated
in Figure 4. Upon power-up, the green PWR LED should light and the
yellow CONF LED should illuminate for the duration of module initializa­tion.

With factory default configuration and a valid input signal connected, the
green PWR LED, and one of the yellow signal standard LEDs (525 or 625)
should illuminate (refer to Table 2 on page 12 to see the possible operating
indicator combinations).

Video input presence is indicated by an illuminated VID PRES LED and the
appropriate 525 or 625 LED (indicating a 525-line or 625-line input signal
has been detected). The MAN LED, when on, indicates that manual stan­dard selection is enabled.

Figure 4. LEDs and Configuration Switches

Ejector Tab

FAULT – Red LED is off during normal operation

COMM (Yellow)

CONF (Yellow)

PWR – Green LED on indicates power OK

525 – Yellow LED on indicates 525 mode input

MAN MODE – Yellow LED on indicates manual input selection

625 – Yellow LED on indicates 625 mode input

VID PRES – Green LED on indicates a valid video input signal is present

5

6

4

7

3

8

2

9

A

B

C

16-position
Rotary switch

1

0

F

E

D

Module Configuration Switches and LED
2nd Function
(Yellow)

Momentary toggle switch

0604_06

GND

8950DAC Instruction Manual 11

Power Up

A red FAULT LED indicates an error situation and, with the previously
described LEDs, can indicate the operational conditions presented in

Table 2.

Table 3 on page 13 provides the possible output conditions and LED states

that result from different configuration and input conditions.

Table 2. Indicator LEDs and Conditions Indicated

LED Indication Condition

Off Normal operation

Fault

(red)

COMM

(yellow)

CONF

(yellow)

PWR

(green)

525

(yellow)

MAN

(yellow)

625

(yellow)

VID PRES

(green)

2ND

(yellow)

1

If no valid video signal is present, all four analog outputs will be 0.0 VDC with some occasional low level noise.

On continuously Module has detected internal fault

Short flash

Off No activity on frame communication bus
Long flash Location Command received by the module from a remote control system
Short flash Activity present on the frame communication bus

Off Module is in normal operating mode

On continuously Module is initializing, changing operating modes or updating firmware

Flashing

Off No power to module or module’s DC/DC converter failed

On continuously Normal operation, module is powered

Off Input signal is 625 standard (Auto-select active) or no signal is present

On continuously Input signal is 525 standard

Flashing Input signal is 625 standard and mode select is in manual position

On Input is forced by configuration to accept one format, either 525 or 625

Off Module will detect and accept either input signal format

Off Input signal is 525 standard (Auto-select active) or no signal is present

On continuously Input signal is 625 standard

Flashing Input signal is 525 standard and mode select is in manual position

Off No valid input signal is present

On A valid video input signal is present

On Second bank of setup functions is accessed by the rotary switch

Off First bank of setup functions is accessed by the rotary switch

EDH errors will cause short flashes. In most applications a few, infrequent EDH
errors will not be of consequence. Continuous EDH errors result in obvious output
signal degradation.

Indicates rate of change of toggle switch controlled analog setting. The longer the
switch is held, the more the flashing rate and the change-of-setting rate increases

1

12 8950DAC Instruction Manual

Power Up

Table 3. Input and Output Conditions

Input Signal Standard Detection LED State Output Signal

VID PRES off

No signal

No signal

No signal

Signal present 525

Signal present 625

Signal present 525

Signal present 625

Signal present 525

Signal present 625

Auto mode

Manual mode 525

Manual mode 625

Auto mode

Auto mode

Manual 525

Manual 525

Manual 625

Manual 625

625 off
525 off
MAN mode off
FAULT flashing

VID PRES off
625 off
525 on
MAN mode on
FAULT flashing

VID PRES off
625 on
525 off
MAN mode on
FAULT flashing

VID PRES on
625 off
525 on
MAN mode off
FAULT off

VID PRES on
625 on
525 off
MAN mode off
FAULT off

VID PRES on
625 off
525 on
MAN mode on
FAULT off

VID PRES on
625 off
525 flashing
MAN mode on
FAULT off

VID PRES on
625 flashing
525 off
MAN mode on
FAULT off

VID PRES on
625 on
525 off
MAN mode on
FAULT off

0 V ±20 mV

0 V ±20 mV

0 V ±20 mV

Valid video output

Valid video output

Valid video output

Invalid video output

Invalid video output

Valid video output

8950DAC Instruction Manual 13

Configuration

Configuration

The 8950DAC can be configured locally using onboard switches or
remotely using the 8900NET network interface GUI or a networked control
panel.

Refer to the following sections for configuration instructions:

•Configuration Summary (page 14)

• Local On-board Module Configuration (page 19)

•Remote Control and Monitoring (page 22)

Operation of these control types is explained in detail in their respective
sections of this manual.

Configuration Summary

This section provides a summary of all parameters that can be configured
on the 8950DAC module. Table 5 on page 17 provides a summary in table
format of all parameters and their ranges, default values, and remote, local,
and control panel function names and locations for setting each value.

Format Selections

The 8950DAC converts a SMPTE 259M (270 Mb/s) D1 serial component
digital signal to any one of the following analog Color Difference or GBR
video signals:

•SMPTE

•GBR

• Beta (US/525)

• Beta (Japan/525)

•MII (US/525)

•MII (Japan/525)

• EBU N10 (625)

Once a format is selected, the default values for that format will be loaded
to the module. The overall factory default for the module is GBR.

14 8950DAC Instruction Manual

Configuration

Format Setup

Table 4 lists the nominal output signal levels for each format selection with

a 100% saturated/100% luminance color bar signal.

Table 4. Format Setup Signal Levels

Format Y Channel Level Peak to Peak Chroma

MII (US) 647.5 mV video plus 52.5mV setup 647.5 mV
MII (Japan) 700 mV 700 mV
BETA (US) 660.4mV video plus 53.6mV setup 933.3 mV
BETA (Japan) 714 mV 1009 mV
SMPTE (525 & 625) 700 mV 700 mV
EBU N10 (625) 700 mV 700 mV
GBR G, B, R channels, all 700 mV

Level Adjustments

The factory (default) settings for signal processing functions are set to pass
a calibrated broadcast quality signal at optimum levels. Signal video and
composite sync DC offset and output level adjustments are available to
correct deficiencies in the input signal.

Once any video or composite sync adjustments are made, it is recom­mended to save these settings on the User Settings web page (

Web Page

Level values will return to the factory defaults for that format.

on page 31). If the format is reselected from the pulldown, the

Timing/Blanking Adjustments

The following adjustments can be made to the signal that affect timing and
blanking:

•Horizontal delay – adjust the amount of horizontal delay in ns,

• Sync On G – sync may be turned on or off on the Y/G channel output
in GBR, and

•Vertical blanking – set vertical blanking to Pass or Blank all vertical
data.

User Settings

8950DAC Instruction Manual 15