专为广播而设计的数字音频延时器，可以用时间、帧、场为延时单位。D-22在使用时能提供无缝延时校正，避免产生各种不必要的噪音，变调或其它杂音。D-22具有模拟及数字输入输出接口，包括AESEBU、SPDIF、及75欧姆BNC时钟接口，ADDA采用24Bit处理，简易的操作，直观的使用界面，独立而灵活的轻触旋钮可轻易更改延时时间，为专业广播电视提供了一个有效的工具。

主要特点：

无缝延时校正

AESEBU、SPDIF、及75欧姆BNC时钟接口

以帧、场为延时单位

其它特点：

24Bit ADDA转换

1300ms延时通道，双通道

独立的轻触旋钮用于调整延时

Total Recall全参数调用

面板按钮具有保护功能，可以锁定

可用数字输出推子遥控

包括RS-485及GPI接口

D22 - On-Line Broadcast Delay

High resolution Delay for broadcast master control and linking. Delay-time may be adjusted while signal is being passed, thanks to a low artifact processing technique. The delay is easily adjustable from the front panel using dedicated Nudge keys, Encoder and Tap function. Increments can be set in ms, fields or frames, and the unit delays linear audio as well as Dolby E or AC3 streams. Remote control of by-pass and delay time is available through GPI or RS485 inputs. Balanced and unbalanced AES/EBU I/O is standard, and outputs are always active. Sample rate conversion can be invoked when using digital inputs.

Analog I/O is standard, and outputs are always active. The 24 bit converters are scaled in the analog domain, with scaling under preset control, to minimize noise and maximize headroom under all operating conditions.

technical specifications

Digital Inputs and Outputs
Connectors

XLR (AES/EBU) RCA Phono (S/PDIF)
Formats

AES/EBU (24 bit), S/PDIF (20 bit), EIAJ CP-340, IEC 958
Output Dither

HPF TPDF dither 8-24 bit
Word Clock Input

BNC, 75 Ω, 0.6 to 10 Vpp
Sample Rates

32 kHz, 44.1 kHz, 48 kHz
Processing Delay

0.5 ms @ 48 kHz
Frequency Response DIO

DC to 23.9 kHz ± 0.01 dB @ 48 kHz
Sample Rate Conversion Type

Asynchronous
Dynamic Range

120 dB
THD+N

-106 dB 44.1 to 48 kHz @ 1 kHz, -2 dBFS

Analog Inputs
Connectors

XLR balanced (pin 2 hot)
Impedance

20 kΩ (balanced)
Max. Input Level

·27 dBu (balanced)
Min. Input Level (for 0 dBFS)

-4 dBu (balanced)
A to D Conversion

24 bit (1 bit, 128 times oversampling)
A to D Delay

0.8 ms @ 48 kHz
Dynamic Range

>103 dB (unweighted), >106 dB(A)
THD

-95 dB (0.0018 %) @ 1 kHz, -6 dBFS (FS @ +18 dBu)
Frequency Response

10 Hz to 20 kHz: +0/-0.2 dB
Crosstalk

<-80 dB, 10 Hz to 20 kHz typical -100 dB @ 1 kHz

Analog Outputs
Connectors

XLR balanced (pin 2 hot)
Bypass

Through relay
Impedance

40 Ω (balanced)
Max. Output Level

·26 dBu (balanced)
Full Scale Output Range

-4 dBu to +26 dBu (balanced)
D to A Conversion

24 bit (1 bit, 128 times oversampling)
D to A Delay

0.57 ms @ 48 kHz
Dynamic Range

>100 dB (unweighted), >104 dB(A)
THD

-86 dB (0.005 %) @ 1 kHz, -6 dBFS (FS @ +18 dBu)
Frequency Response

10 Hz to 20 kHz: +0/-0.5 dB
Crosstalk

<-60 dB, 10 Hz to 20 kHz typical -90 dB @ 1 kHz

EMC
Complies with

EN 55103-1 and EN 55103-2 FCC part 15, Class B CISPR 22, Class B

Safety
Certified to

IEC 65, EN 60065, UL 1419 and CSA E65

Environment
Operating Temperature

32° F to 122° F (0° C to 50° C)
Storage Temperature

-22° F to 167° F (-30° C to 70° C)
Humidity

Max. 90% non-condensing

PCMCIA Interface
Connectors

PC Card, 68 pin type 1 cards
Standards

PCMCIA 2.0, JEIDA 4.0
Card Format

Supports up to 2 MB SRAM

Control Interface
RS485/RS422

In/Out/Through: 5 Pin DIN
GPI, Pedal, Fader

1/4 inch phone jack

General
Finish

Anodized aluminum face and top plate, Plated and painted steel chassis
LCD

56 x 128 dot graphic LCD-display
Dimensions

19" x 1.75" x 8.2" (483 x 44 x 208 mm)
Weight

5.2 lb. (2.35 kg)
Mains Voltage

100 to 240 VAC, 50 to 60 Hz (auto-select)
Power Consumption

<20 W
Backup Battery Life

>10 years

Warranty
Parts and Labor

1 year