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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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

Configuration

Standard Recognition

The module can be set to for auto recognition of the input standard or set
for manual 525 or 625.

Setup

Setup can be enabled or disabled on 525 video standards and the Setup
level can be adjusted.

User Settings Save and Recall

A function is provided to save and recall the adjusted parameters for the
selected standard. This function is useful for saving configured parameters
because recalling a standard will return the values to the factory defaults
for that specific standard.

16 8950DAC Instruction Manual

Table 5 provides a complete summary of the 8950DAC processing func-

tions and a comparison of the functionality available with each control type
along with the ranges and default values for each parameter.

Table 5. Summary of 8950DAC Configuration Functions

Function

Type

Format/Standard GBR

Levels control action Independent

Y/G Video level 100% See list below

SMPTE/MII-Japan/EBU N10

MII/US 54.44 to 127.54%

GBR 54.44 to 141.14%

Beta/US 54.44 to 125.84%

Beta/Japan 54.44 to 119.72%

Cb/B Video level 100% See list below

SMPTE/MII-Japan/EBU N10

MII/US 73.48 to 143.86%

GBR 55.12 to 140.80% B Video

Beta/US 38.12 to 114.96%

Beta/Japan 29.28 to 114.96%

Cr/R Video level 100% See list below

SMPTE/MII-Japan/EBU N10

MII/US 73.48 to 143.86%

GBR 55.12 to 140.80% R Video

Beta/US 55.80 to 139.10%

Beta/Japan 26.90 to 94.90%

Composite Sync
output level

Composite Sync DC 100%

Setup Level for
US/525 MII and Beta

Horizontal delay
adjust

Default

100%

100%

0 ns

Range/Choices

Resolution

SMPTE

GBR 1:7

M II (US/525) 1:1

M II (Japan/525) 1:2

Beta (US/525) 1:3

Beta (Japan/525) 1:4

EBU N10 (625) 1:5
Independent or

Locked

54.44 to 121.08%
(0.34% steps)

67.02 to 143.86%
(0.34% steps)

55.80 to 132.64%
(0.34% steps)

87.35 to 100.10
(0.05% steps)

92.20 to 104.95
(0.05% steps)

76.57 to 118.15
(0.05% steps)

0 to 148000 ns

(37 ns steps)

Web Page/

Function Name

Levels/

Format/Standard pulldown

Levels/

Control Action pulldown

Levels/

Y or G Video (%)

Levels/

Cb/B Video (%)

Levels/

Cr/R Video (%)

Levels/

Composite Sync Output (%)

Levels/

Composite Sync DC (%)

Levels/

Setup Level (%)

Timing/Blanking/

Horizontal Delay (ns)

Rotary Switch

Bank/Setting

1:6

1:8 Action

1:9

1:A

1:B

1:C

1:D

1:E

2:3

Newton
Control

Panel

Format

YG video
(PID 719)

CbBvideo

(PID 721)

Cb Vid

CrRvideo

(PID 723)

Cr Vid

Sync Out

(PID 725)
Sync DC

(PID 727)
SetupLvl

(PID 729)

HDelay

(PID 731)

Configuration

Note/

Conditions

Selecting for­mat recalls fac­tory defaults for
that standard.

1

Adjust each
video level sep-

1

arately or tie
controls
together.
All formats.

1

1

1

1

Setup must be
enabled.

1

8950DAC Instruction Manual 17

Configuration

Table 5. Summary of 8950DAC Configuration Functions

Function

Type

Sync On G On On or Off

Vertical Blanking Pass Blank or Pass

Standard Recognition Auto

Output Video Setup Setup Setup or No Setup

Recall User Settings – –

Save User Settings – –

Get Factory Defaults GBR values –

1

Two Newton Control Panel controls are present. Use the second one in the list corresponding to the PID value in Newton Configurator as indicated

in this table.

Default

Range/Choices

Resolution

Auto, Manual 525 or

Manual 625

Web Page/

Function Name

Timing/Blanking/

Sync On G pulldown

Timing/Blanking/

Vertical Blanking pulldown

Standard Selection/

Standard Recognition pull-

down

Standard Selection/

Output Video Setup pulldown

User Settings/

Recall User Settings

button

User Settings/

Save User Settings

button

User Settings/

Get Factory Defaults\

button

Rotary Switch

Bank/Setting

(Down 1X=Man-

Down 2X=525

Down 3X=625)

2:F (up)

(press down 3X

successively)

2:2 SyncOnG GBR only

2:4 VBlank

2:1

ual,

1:F Setup

2:F

1:7

(GBR)

Newton

Control

Panel

Auto Std

N/A

Conditions

Beta and MII
US/525 for­mats only

Save Levels
settings after
configuration

Module factory
default is GBR

Note/

18 8950DAC Instruction Manual

Local On-board Configuration Switches and LEDs

The 8950DAC module can be configured using the rotary and paddle
switches shown in Figure 5. The CONF and 2ND function LEDs are config­uration status indicators. These four components perform the following:

• Function (rotary) switch — Addresses two banks of 16 possible posi­tions (0 through 9 and A through F) to access a desired function for con­figuration. Not all positions are used (see Table 6 on page 20).

Note The Function switch should be kept in position 0 when not in use to avoid any

inadvertent change in configuration. 0 is an inactive position.

•SW2 (paddle) switch — Actuates or selects the desired setting for the
selected function when the switch is held momentarily in either the Up
or Down position.

•2ND LED — When on, rotary switch is accessing the second bank of
configuration items.

• CONF (configuring) LED — When on, indicates the module is initial­izing or processing configuration information.

Configuration

CONF – configuration LED

GRASS VALLEY GROUP

JP2

LOCAL

JP2

REMOTE

Figure 5. Module Configuration Switches and LEDs

8950DAC 671-4798-

FUNCTION – rotary switch
2nd – second function LED
SW2 – paddle switch

0604_05r1

8950DAC Instruction Manual 19

Configuration

On-board Module Configuration

Note Module configuration items described here do not apply to the initial version

number 061-4798-00 of the 8950DAC module.

The 8950DAC offers a selection of one of seven output signal standards
(Function Switch settings 1 through 7 of Bank 1, see Table 6). These stan-
dard setups are factory default (pre-set) setups that can always be recalled
by re-selecting one of the seven. A user default setup configuration can also
be stored in memory for recall. A description of each factory default stan­dard is provided in Table 4.

Note When module power recycles the last setup state is restored. The module

does not revert to a factory or the user default.

To make a configuration setting:

1. Rotate the Function Switch to the desired Bank (1 or 2) and function.

2. Move the paddle switch to the up or down position and hold

momentarily to set the desired function.

Table 6. 8950DAC Configuration Functions

Function

Switch

0----Inactive position
1 MII (US/525) -- Recalls factory default parameters for MII (US) standard.
2 MII (Japan/525) -- Recalls factory default parameters for MII (Japan) standard.
3 BETA (US/525) -- Recalls factory default parameters for BETA (US) standard.
4 BETA (Japan/525) -- Recalls factory default parameters for BETA (Japan) standard.
5 EBU N10 (625) -- Recalls factory default parameters for EBU N10 standard.
6 SMPTE -- Recalls factory default parameters for SMPTE standard.
7 GBR -- Recalls factory default parameters for GBR standard.
8 Increase Decrease Output video level adjustment for all inputs.

Bank 1

9 Increase Decrease Y/G output video level adjustment.
A Increase Decrease Cb/B output video level adjustment.
B Increase Decrease Cr/R output video level adjustment.
C Increase Decrease Sync output level adjustment
D Increase Decrease Sync output DC offset adjustment.
E Increase Decrease (Y/G) Setup level adjustment
F Setup No Setup Setup on composite output enable for Beta/US and MII/US 525 only

Paddle

Switch Up

Paddle

Switch Down

Function Description

20 8950DAC Instruction Manual

Table 6. 8950DAC Configuration Functions - (continued)

Configuration

Function

Switch

0----Inactive position.

1 Auto

2 Add Remove Adds or removes sync on the G/Y channel.
3 Increase Decrease Sets amount of signal delay.

Bank 2

4 Blank Pass Blank or pass vertical blanking information.
5 thru 9 – – Not used.
A thru E – – Not used.

F Recall

1

Subsequent presses toggle between 525 and 625.

2

To Save current settings the toggle switch must be pressed down three times successively.

Paddle

Switch Up

Paddle

Switch Down

Manual

Down x 2 Manually sets 525 line standard.

Down x 3

Save

(Down x 3

Standard recognition – Toggle switch up enables automatic input standard recognition.
First press down enables manual selection; second and third press select standard.

1

Manually sets 625 line standard.

Recall previously saved user default configuration, or Save current configuration settings

2

)

as the user default.

Note To activate the Save function (position F) you must toggle the activation

switch down three times successively. The Save function saves the current
settings as the new user default configuration.

Function Description

8950DAC Instruction Manual 21

Configuration

Remote Configuration and Monitoring

8950DAC configuration and monitoring can be performed using a web
browser GUI interface or a networked Newton Control Panel when the
8900NET Network Interface module is present in the video frame (Gecko
8900TFN-V frame). Each of these interfaces is described below.

Note For remote access, make sure the jumper block on the module is set for both

Local and Remote access (Figure 5 on page 19).

8900NET Module Information

Refer to the 8900NET Network Interface Module Instruction Manual for
information on the 8900NET Network Interface module and setting up and
operating the Gecko 8900 frame network.

Note The 8900NET module in the frame must be running software version 3.2.0 or

higher for proper remote and control panel operation. Upgrade software and
instructions for the 8900NET can be downloaded from the Grass Valley web
site.

Newton Control Panel Configuration

A Newton Control Panel (hard or soft version) can be interfaced to the
Gecko 8900 Series frame over the local network. Refer to the documenta­tion that accompanies the Newton Modular Control System for installa­tion, configuration, and operation information.

Control panel access offers the following considerations for module config­uration and monitoring:

•Ability to separate system level tasks from operation ones, minimizing
the potential for on-air mistakes.

•Ability to group modular products—regardless of their physical loca­tions—into logical groups (channels) that you can easily manipulate
with user-configured knobs.

•Update software for applicable modules and assign frame and panel IP
addresses with the NetConfig Networking application.

•Recommended for real-time control of module configuration parame­ters, providing the fastest response time.

Note Not all module functions are available with the control panel, such as E-MEM

and factory default recalls. The available control panel controls for the
8950ADC module are listed in Table 5 on page 17.

An example of the Newton Configurator is shown in Figure 6 on page 23.

22 8950DAC Instruction Manual

Figure 6. Newton Configurator Example

Configuration

Web Browser Interface

The web browser interface provides a graphical representation of module
configuration and monitoring.

Use of the web interface offers the following considerations:

•Provides complete access to all module status and configuration func-

tions, including naming of inputs and outputs, factory parameter and
name default recalls, E-MEM functions, slot configuration, and SNMP
monitoring controls.

•Web access will require some normal network time delays for pro-

cessing of information.

•Configuration parameter changes may require pressing

Enter, upload processing time, and a manual screen refresh to become

effective.

•Web interface recommended for setting up module signal and slot

names, E-MEMS, and reporting status for SNMP and monitoring.

Refer to the Frame Status page shown in Figure 7 on page 24. The 8900
modules can be addressed by clicking either on a specific module icon in
the frame status display or on a module name or slot number in the link list
on the left.

Apply button or

8950DAC Instruction Manual 23

Configuration

Note The physical appearance of the menu displays on the web pages shown in

this manual represent the use of a particular platform, browser and version
of 8900NET module software. They are provided for reference only. Displays
will differ depending on the type of platform and browser you are using and
the version of the 8900NET software installed in your system. This manual
reflects 8900NET software version 3.2.2.

For information on status and fault monitoring and reporting shown on the
Status page, refer to Status Monitoring on page 38.

Figure 7. Gecko 8900 Frame Status Page

The Links section lists the frame and its current modules. The selected link's Status
page is first displayed and the sub-list of links for the selection is opened. The sub-list
allows you to select a particular information page for the selected device.

Content display section displays the information page
for the selected frame or module (frame slot icons are also
active links).

Refresh button for manual
update of page

0604_08

24 8950DAC Instruction Manual

8950DAC Links and Web Pages

The 8900 GUI provides the following links and web pages for the 8950DAC
module (Figure 8):

• Status – reports input and reference signal status and module informa-

tion (page 26),

• Levels – select output format for module and adjust the levels for video,

composite sync and DC output, and video setup amplitude (page 27),

•Timing/Blanking – adjust horizontal timing, select SAV/EAV, sync

source, and vertical blanking width (page 29)

• Standard Selections – select standard recognition method, add or

remove output video setup, and turn Kalypso 0:4:4 compressed chroma
key signal on or off (page 30)

•User Settings – Save or recall user settings, select factory defaults

(page 31)

• Slot Config – provides a Locate Module function and Slot Memory and

SNMP reporting status information (page 32), and

Configuration

• Software Update – provides information on software updating

(page 34).

Figure 8. 8950DAC Web Page Links

Refer to Table 5 on page 17 for a summary in table format of all parameters
and their ranges, and default values.

8950DAC Instruction Manual 25

Configuration

Status Web Page

Use
this
link

The Status web page (Figure 9) shows the input signal status of the compo­nent analog video input. Color coding of the display indicated the signal
status. Refer to Status Monitoring on page 38 for an explanation of the color
coding.

Information about the module, such as part number, serial number, hard­ware revision and software and firmware versions are given in a read-only
section at the bottom of the display.

Figure 9. 8950DAC Status Web Page

26 8950DAC Instruction Manual

Use
this
link

Configuration

Levels Web Page

The output format/standard for the module is selected on the Levels web
page shown on Figure 10 on page 28. This web page also provides adjust­ment for the following:

•Video levels on each channel,

•Composite sync output and DC levels, and

•Video setup amplitude level.

All adjustments are made in percentage. 100% equals the default value of
the currently chosen format. Refer to Table 4 on page 15 for 100% level
values for each analog component format.

Select either
mode, you may set each channel level individually. In
changing a value in any channel will move all three channels together.

From the
standard from the following displayed choices:

•SMPTE

•GBR

•MII (US/525)

•MII (Japan/525)

• Beta (US/525)

• Beta (Japan/525)

• EBU N10 (625)

Adjust the video levels individually (
using the Y/G Video, Cb/B Video or Cr/B Video controls.

If you have made any adjustments in the levels and wish to keep them, you
must store them using the
page (see User Settings Web Page on page 31).

Independent or Locked mode to make adjustments. In Independent

Locked mode,

Format/Standard pulldown, select an analog component output

Independent) or all at once (Locked)

Save User Setting button on the User Settings web

You can recall default settings for a particular component standard by rese­lecting and applying that standard. Horizontal delay, sync on G (GBR
only), and vertical blanking settings are not changed by this reset so these
user adjustments are retained. This differs from the
tion which returns these values to factory calibration.

Adjust the output level and DC offset of the composite sync with the

posite Sync Output and Composite Sync DC controls.

8950DAC Instruction Manual 27

Get Factory Defaults func-

Com-

Configuration

Adjust the percentage of video setup level with the Setup Level control. This
display will be grayed out in analog component formats with no setup.
Setup is enabled (
described in Standard Selections Web Page on page 30.

Figure 10. Levels Web Page – GBR Standard

Setup/No Setup) on the Standards Selection web page

28 8950DAC Instruction Manual

Timing/Blanking Web Page

Set the following parameters on the Timing/Blanking web page shown in

Figure 11:

Configuration

Use
this
link

• Amount of horizontal delay in ns,

•

Sync on/off on G Channel (GBR format only, grayed out in all other formats),

and

•

Blank or Pass vertical blanking information.

Figure 11. Timing/Blanking Web Page

8950DAC Instruction Manual 29

Configuration

Standard Selections Web Page

The Standards Selection web page shown in Figure 12 is used to select the
following module parameters:

Use
this
link

• Standard Recognition (

• If

Manual is selected, set signal standard (525 or 625), and

•Output video setup add or remove (appears when 525 analog compo­nent format is selected).

Figure 12. Standard Selection Web Page

Auto or Manual),

30 8950DAC Instruction Manual

User Settings Web Page

The User Settings web page (Figure 13) allows you to set the following
parameters:

Configuration

Use
this
link

• Select the

• Save the currently selected settings for the entire module into User Set-

tings with the

•Recall the GBR factory default video levels and timing settings on the

module using the

Figure 13. User Settings Web Page

Recall User Settings button to recall previously saved settings,

Save User Settings button, and

Get Factory Defaults button.

8950DAC Instruction Manual 31

Configuration

Use
this
link

Slot Config Web Page

Use the Slot Config web page (Figure 14 on page 33) to perform the fol­lowing functions on the 8950DAC module:

•

Locate Module – selecting the Flash radio button flashes the yellow

COMM and CONF LEDs on the front of the module so it can be located
in the frame.

•

Slot Identification – You may identify the module by typing a specific

name in the
module and travels with the 8900NET module if it is moved to another
frame. Select

You may also enter a name in the Input Signal Name field.

•

Slot Memory – the slot configuration for each media module is automati-

cally saved periodically (once an hour) to the 8900NET module in that
frame. You may also select the
save the current configuration for this slot. The configuration is saved
on the 8900NET module. If the 8900NET module is removed or
powered down, the stored configurations are not saved.

Name field. The assigned name is stored on the 8900NET

Default to enter the factory default module name.

Learn Module Config button at any time to

When the
ration saved to this slot is saved as slot memory. When the current
module is removed and another module of the same type is installed,
the configuration saved to the 8900NET module will be downloaded to
the new module. The box must be checked before the current module
with the saved configuration is removed.

•

Frame Heath Reporting – this function is not active with the latest version

of the 8900NET module that controls this page.

•

Hardware Switch Controls – a read-only status report of 8900NET module

switch settings for Module Status Reporting and Asynchronous Status
Reporting. These functions must be enabled for the following Slot
SNMP Trap Reports to function.

Slot SNMP Trap Reports – displayed only when the SNMP Agent software

•
has been installed on the 8900NET module. Slot SNMP traps can be
enabled only when the hardware switches for Module Fault reporting
and Asynchronous Status reporting are in enabled on the 8900NET
module (dipswitch S1 segment 5 and dipswitch S2 segment 1).

The enabled SNMP traps will be reported to any SNMP manager that
is identified as an SNMP Report Destination in 8900NET configuration.
Trap severity is read-only hard-coded information that is interpreted
and responded to by the SNMP Manager software configuration.

Restore upon Install box has been checked, the current configu-

32 8950DAC Instruction Manual

Figure 14. 8950DAC Slot Config Web Page

Configuration

8950DAC Instruction Manual 33

Configuration

Use
this
link

Software Update Web Page

The Software Update page (Figure 15) indicates that module software
updates via the web or using the NetConfig networking application are not
supported. For instructions on updating to the latest software, refer first to
the 8950DAC Release Notes that accompany the software update for com­plete details.

Currently, the only recommended method of software updating is done
with a software kit (8900-FLOAD-CBL) that includes a CD-ROM with the
current software files and a serial cable assembly available from Grass
Valley.

Refer to the 8900-FLOAD-CBL Software Upgrade Instruction Manual in
PDF format on the CD-ROM for complete updating instructions and the
required software files for the module.

Figure 15. 8950DAC Software Update Web Page

34 8950DAC Instruction Manual

Specifications

Specifications

Table 7. 8950DAC Specifications

Parameter Value

SDI Input

Signal type SMPTE 259M serial 10-bit 4:2:2 component video
Number of inputs 1 loop-through
Connector type 75 Ω BNC
Return loss > 18 dB up to 270 MHz
Signal level SDI: maximum cable length for pathological signal

CAV Outputs

Number of outputs 2 sets (GBR or Y/B-Y/R-Y)
Connector type 75 Ω BNC
Signal formats SMPTE, GBR, EBU N10, MII Japan, Beta US, Beta Japan, MII US
Signal DC level‘ 0 V DC ± 20 mV
Signal level CAV from 0.5 V up to 1.5 V (75 Ω terminated)

Factory default – SMPTE output ± 1% (after SMPTE setup in
Y/B-Y/R-Y, default GBR level accuracy is ± 5%)

Vertical blanking 525:

Narrow – 9 lines
Wide – 19 lines
625:
Narrow – 9 lines
Wide – 25 lines

Return loss > 40 dB up to 5.5 MHz

Analog Sync Output

Connectors 2 BNC
Signal type Analog composite sync
Output impedance 75 Ω
Output level 0.2 V up to 2.5 V p-p (75 Ω terminated)

Factory default: –2 V p-p ± 10%, DC: 0 V ± 20 mV

Output DC level 0 V DC ± 200 mV

Factory default: 0 V DC ± 1%

Performance

Support standards 525 or 625 (auto or manual)
Internal DSP 12 + 1 bit precision

X4 oversampling
Output D/A 10-bit
Analog output frequency response Y, G, B,R: ± 0.1 dB (10 Hz to 5.5 MHz, ± 0.1dB, ref. 1 MHz)

R-Y, B-Y: ± 0.1 dB (10 Hz to 2.75 MHz, ± 0.1dB, ref. 1 MHz)
Analog output group delay error Y: < 5 ns peak to peak (10 Hz to 5.5 MHz)

R-Y, B-Y: < 5 ns peak to peak (10 Hz to 2.75 MHz)
Analog output 3 channels delay error < 2 ns
Error checking and reporting EDH processor
Signal-to-noise ratio S/N ≥ 68 dB
K-factor 2T pulse 0.3/0.4%
Module delay 2.68 µsec

≤ 275 m

8950DAC Instruction Manual 35

Specifications

Table 7. 8950DAC Specifications - (continued)

Parameter Value

User control delay Up to 2.5 lines

Environmental

Frame temperature range See Gecko 8900 Frame
Operating humidity range 0 to 90% non-condensing
Non-operating temperature -10 to 70 degrees C

Mechanical

Frame type Gecko 8900 Series Video

Power Requirements

Supply voltage + 12 V
Power consumption < 7.8 W (signal present: 0.65 A at 12 V)

< 6.6 W (no signal: 0.55 A at 12 V)

36 8950DAC Instruction Manual

Service

Service

The 8950DAC Digital to Analog Converter modules make extensive use of
surface-mount technology and programmed parts to achieve compact size
and adherence to demanding technical specifications. Circuit modules
should not be serviced in the field unless otherwise directed by Customer
Service.

If your module is not operating correctly, proceed as follows:

•Check frame and module power and signal present LEDs.

•Check fuse and voltage testpoints (Figure 16).

•Check for presence and quality of input signals.

•Verify that source equipment is operating correctly.

•Check cable connections.

•Check output connections for correct I/O mapping (correct input con­nector is used for the corresponding channel output).

Refer to Figure 4 for the location of PWR LED and Table 2 on page 12 for
proper LED indications.

GRASS VALLEY GROUP 8950DAC

Voltage Testpoints

JP9

JP9

+5V

If the module is still not operating correctly, replace it with a known good
spare and return the faulty module to a designated Grass Valley repair
depot. Call your Grass Valley representative for depot location.

Refer to Contacting Grass Valley at the front of this document for the Grass
Valley Customer Service Information number.

Figure 16. 8950DAC Fuse and Voltage Testpoints

671-4798-

GND

+3.3V

-5V

Fuse

F2

F2A 125V

Solder side

(back)

0604_07

8950DAC Instruction Manual 37

Status Monitoring

Status Monitoring

This section provides a summary of status monitoring and reporting for a
Gecko 8900 Series system. It also summarizes what status items are
reported and how to enable/disable reporting of each item. There are a
number of ways to monitor status of modules, power supplies, fans and
other status items depending on the method of monitoring being used.

8900 Frame status will report the following items:

• Power supply health,

• Status of fans in the frame front cover,

•Temperature,

•Module health, and

• Frame bus status.

Module health status will report the following items:

• Internal module state (and state of submodule or options enabled)
including configuration errors (warning), internal faults, and normal
operation (Pass).

LEDs

• Signal input states including valid/present (pass), not present or
invalid (warning), not monitored, and not available (no signal inputs).

•Reference input states including locked/valid (pass), not
locked/invalid (warning), and not monitored.

• Signal output states with reporting functionality (reference output).

LEDs on modules in the frame and on the front of the 8900TF/TFN frames
indicate status of the frame and the installed power supplies, fans in the
front covers, and modules. (The 8900TX-V/A frames have no LED indica­tors on the front cover.)

When a red FAULT LED is lit on a frame front cover, the fault will also be
reported on the 8900NET or Frame Monitor module. The LEDs on the front
of these modules can then be read to determine the following fault condi­tions:

• Power Supply 1 and 2 health,

• Fan rotation status,

• Frame over-temperature condition,

• Frame Bus fault (8900NET only), and

•Module health bus.

38 8950DAC Instruction Manual

Frame Alarm

Status Monitoring

In general, LED colors used on the frame and modules indicate:

•Green – normal operation, (Pass) or signal present, module locked.

•Red – On continuously = fault condition, flashing = configuration error.

•Yellow – On continuously = active condition (configuration mode or

communication), flashing in sequence = module locator function.

Status LEDs for this module are described in Operation Indicator LEDs on

page 11. LEDs for the 8900NET module are described in the 8900NET

Network Interface Instruction Manual.

A Frame Alarm connection is available on pins 8 and 9 of the RS-232 con­nector on the rear of 8900 frame (Frame Monitor or 8900NET Network
Interface module required). This will report any of the status items enabled
with the 8900NET or Frame Monitor module configuration DIP switch.
Connection and use of the Frame Alarm is covered in detail in the 8900NET
Network Interface Instruction Manual.

Web Browser Interface

When the 8900NET module is installed in the frame, a web browser GUI
can indicate frame and module status on the following web pages:

• Frame Status web page – reports overall frame and module status in

graphical and text formats.

•Module Status web page – shows specific input and reference signal

status to the module along with enabled options and module versions.

•A Status LED icon on each web page to report communication status

for the frame slot and acts as a link to the Status web page where warn­ings and faults are displayed (8900NET version 3.0 or later).

In general, graphics and text colors used indicate the following:

•Green = Pass – signal or reference present, no problems detected.

•Red = Fault – fault condition.

•Yellow = Warning – signal is absent, has errors, or is mis-configured.

•Gray = Not monitored (older 8900 module).

•White = Not present.

Status reporting for the frame is enabled or disabled with the configuration
DIP switches on the 8900NET module. Some module status reporting items
can also be enabled or disabled on individual configuration web pages.

8950DAC Instruction Manual 39

Status Monitoring

SNMP Reporting

The Gecko 8900 Series system uses the Simple Network Monitoring Pro­tocol (SNMP) internet standard for reporting status information to remote
monitoring stations. When SNMP Agent software is installed on the
8900NET module, enabled status reports are sent to an SNMP Manager
such as the Grass Valley’s NetCentral application.

There are both hardware and software report enable switches for each
report. Both must be enabled for the report to be sent. Software report
switches are set on the 8900NET Configuration web page for the Frame, the
8900NET module, and each module slot. Refer to the 8900NET Network
Interface Instruction Manual for installation instructions.

40 8950DAC Instruction Manual

Functional Description

Refer to the block diagram in Figure 17 while reading the following func­tional description.

Figure 17. 8950DAC Block Diagram

Functional Description

Serial input

LEDs

Setup

To Host

Deserializer

User

Sw.

Embedded
Processor

Y/B-Y/R-Y Y/B-Y/R-Y

54 MHz Osc.

and PLL

Delay

(3 line

max.)

Parallel

Interface

DSP FPGA

Timing

Analog Sync Gen.

4 Times Over-sampling

Filters

Color Space Converter

Matrix select

Bypass control

Comp. Sync

Y/G

B-Y/B

R-Y/R

DAC LPF

DAC

DAC

DAC

LPF

LPF

LPF

8 X
DAC

Composite

Sync

B

Y/G

B

B-Y

B

R-Y

B

OFFSETGAIN

0604_01

The 8950DAC converts SMPTE 259M (270 Mb/s D1 serial component
digital signal) to Y/B-Y/R-Y, or GBR analog video.

The major functional blocks are:

• Serial input and deserializers,

• Phase Lock Loop (PLL) 2 times clock generator,

•Digital to Analog converter (DAC),

•Output Low Pass Filters (LPF) and buffers,

•Delay line,

•Embedded processor, and

•Digital Signal Processing (DSP) Field Programmable Gate Array

(FPGA).

8950DAC Instruction Manual 41

Functional Description

Serial Input and Deserializer

Phase Lock Loop (PLL) 2 Times Clock Generator

Digital to Analog Converter (DAC)

The serial input and deserializer are a standard chip set for receiving and
converting a D1 serial digital video stream into the 10-bit parallel 601
digital video signal. This section regenerates a 27 MHz clock from the
incoming serial data stream.

From the incoming 27 MHz clock, the PLL generates a 54 MHz clock used
for 4 times oversampling. This clock also servers as a free-running clock
when no input signal is present.

This board has four 10-bit high speed DACs producing Y/G, B-Y/B,
R-Y/R and analog Composite Sync outputs.

Output Low Pass Filters (LPF) and Buffers

After the DACs, the video signal passes through Low Pass Filters (4 per
board) and finally through the output amplifiers/buffers to the output
BNCs. Additional slow, I2C, 8x DAC provides the calibration and user
control for the output signal level and output black level.

Delay Line

On board delay line provides an additional 2.5 lines signal delay. The delay
time is under user control with the 37 ns step.

Embedded Processor

The embedded processor provides the interface between user and all the
processing logic inside the 8950DAC, as well as communication between a
remote host processor and the 8950DAC.

42 8950DAC Instruction Manual

Digital Signal Processing FPGA

The FPGA performs all signal processing on the 8950DAC module
including:

•Timing,

•Analog sync generation,

• Four times over-sampling,

• Signal filtering, and

•Color space conversion.

Power Handling

From the external +12V source, the on board power supply provides +5V,

-5V, and +3.3V to the 8950DAC.

Functional Description

8950DAC Instruction Manual 43

Functional Description

44 8950DAC Instruction Manual

Index

Numerics

2ND LED 12, 19
525 LED 11, 12
525 line standard 21
625 LED 11, 12
625 line standard 21
8900 frame

frame alarm

status reporting 38
8900-FLOAD-CBL option 34
8900NET module

required software version
8950DAC

features

functional description 41

A

analog video outputs

cabling

specifications 35

39

7

10

22

specification 35
CONF (configuring) LED 11, 12, 19
configuration

local on-board

overview 14

Remote, GUI 22

summary table 17
connectors 9

input 10

input/output 10
control panel

control summary table

overview 22
controller module 8

19

17

D

documentation online 2

E

enable SNMP 40
environmental 36

B

backplane 9
block diagram 41

C

COMM LED 12
composite sync

DC offset

local adjustment
remote adjustment 27
summary table 17

output

cabling

output level

local adjustment
remote adjustment 27
summary table 17

8950DAC Instruction Manual 45

10

20

20

F

factory defaults

levels for each format

summary table 17
factory defaults recall

remote control
FAQ database 2
fault 12
FAULT LED 12

troubleshooting 38
formats

local controls

nominal signal levels 15

remote control 27

signal level summary table 15

summary table 17

31

20

15

Index

frame 8, 36
frame capacity 8
Frame Status page 39
frequently asked questions 2
Function rotary switch 19, 20
fuse 37

G

graphical user interface (GUI) 25
Grass Valley web site 2

H

horizontal delay

local control
overview 15
remote control 29
summary table 17

21

I

N

Newton Control Panel

overview
summary table 17

22

O

online documentation 2
operational modes 12
outputs 35

connectors 10
specification 35
termination 10

overlay 10

P

performance 35
power 36
power supply 8
PWR LED 11, 12

impedance 10
indicators 12
input 35

loopthrough 10
specification 35

input formats

overview

14

L

Levels web page 27
locate module 32
loop-through 10

M

MAN LED 11, 12
module

controller
installation 8
power supply 8

slots 9
module health status 38
Module Status page 39

8

R

repair depot 37
report enable switches 40

S

setup enable (composite output)

local control
remote control 30
summary table 18

setup level

local adjustment
remote adjustment 28

summary table 17
Slot Config web page 32
slot memory 32
SNMP reporting

enabling

overview 40
software download from web 2
software update

8900-FLOAD-CBL
Software Update web page 34

20

20

32

34

46 8950DAC Instruction Manual

Index

specifications 35
standard recognition 16
standard selection

local control
overview 16
remote control 30

summary table 18
Standard Selection web page 30
status monitoring 38
Status web page 26
switches (onboard) 19
sync on G channel

local control

remote control 29

summary table 18

21

21

T

termination 10
Timing/Blanking web page 29
toggle switch 19
troubleshooting 37

W

web site

documentation
FAQ database 2
Grass Valley 2
software download 2

2

U

user settings

local control

overview 16

remote control 31

summary table 18
User Settings web page 31

V

vertical blanking

local control

overview 15

remote control 29

summary table 18
VID PRES LED 12
video level adjustments

local control

overview 15

remote control 27

summary table 17
voltage (supply) 36
voltage testpoints 37

21

21

20

8950DAC Instruction Manual 47

Index

48 8950DAC Instruction Manual