Miranda SDM-771p Скачать руководство пользователя страница 12

SDM-771P

/75/110

8

5  Specifications

Measurement Conditions

AES input, sampling frequency: 48 kHz
outputs 0 dBFS = +24 dBu loaded on 10 k

AES3-110

INPUT

Input impedance:

110 

Maximum level:

10 Vcc

Minimum level:

0.2 Vcc

AES3-75 

INPUT (SP-Dif - COMPATIBLE)

Input impedance:

75 

Return loss:

> 15 dB (0.1 to 6 MHz)

Minimum level:

0.2 Vcc

ANALOG OUTPUTS

Bandwidth 20/20 KHz

±0.2 dB

Maximum level: 

+ 24 dBu

Unbalance:

<-40 dB

Source impedance:

<55 

Crosstalk:

<-100 dB @ 15 kHz

Load impedance:

> 600 

SIGNAL PROCESSING 

Resolution:

24 bits

Dynamic range:

> 104 dB (A weighting)

Distortion:

< -90 dB @ 1 kHz

De-emphasis:

± 0.5 dB (digital 50-15 

µ

s)

MISCELLANEOUS

Allowable sampling frequency:

28 kHz to 54 kHz

Allowable jitter for THD<0.3%

sine: 200 Hz:

10 UI (1.63 

µ

s @ 48 kHz)

sine: 100 kHz:

0.25 UI (40.71 ns @ 48 kHz)

Содержание SDM-771p

Страница 1: ......

Страница 2: ...is equipment has been tested and complies with the limits in accor dance with the specifications in FCC Part 15 Subpart B CE EN50081 1 1992 CE EN50082 1 1992 How to contact us For technical assistance please contact the Miranda Technical Support cen tre nearest you Americas Asia Telephone Telephone 1 800 224 7882 81 3 5730 2987 e mail e mail techsupp miranda com asiatech miranda com Europe Middle ...

Страница 3: ...BU Digital to Analog Converter 1 1 1 Introduction 1 1 2 Features 1 2 Overall View 2 3 Installation 4 3 1 Power Supply 4 3 2 AES Input 4 3 3 Analog Output 5 4 Operation 6 4 1 Configuring the Switches 6 4 2 Indicating the Status of the AES EBU Carrier 6 5 Specifications 8 ...

Страница 4: ......

Страница 5: ...e dynamics of the analog circuit A de emphasis stage in 50 15 µs 48 or 44 1 kHz format accu rately restores the signal when it has been emphasized This module is available in two versions depending on the stan dard selected SDM 771p 110 symmetric AES3 110 Ω XLR input SDM 771p 75 asymmetric AES3 id 75 Ω or SP Dif BNC input Figure 1 Functional Block Diagram 1 2 Features AES3 110 Ω or AES3 id 75 Ω in...

Страница 6: ...ee point XLR connector over 110 Ω A multicolor LED indicates the status of the AES EBU carrier A mini DE EMPH switch is used to configure the de emphasis cir cuit The output level can be adjusted using the two mini LEFT and RIGHT three position switches Power is provided via the power connector Figure 2 1 SDM 771p 75 Ω Version SDM 771P 75 110 2 ...

Страница 7: ...Guide to Installation and Operation 3 Figure 2 2 SDM 771p 110 Ω Version ...

Страница 8: ...onnector for its power needs figure 3 1 provides a detailed pinout of the male connector Figure 3 1 Power connector pinout 3 2 AES Input SDM 771p 75 BNC socket Connect an asymmetric AES 75 Ω signal to an AES IN BNC connector This signal must comply with the AES3 id or SPDif standard SDM 771p 110 Three point female XLR connector Connect a symmetric AES 110 Ω signal to an AES IN connector refer to f...

Страница 9: ...e 3 2 Female XLR connector pinout 3 3 Analog Output SDM 771p 75 SDM 771p 110 Refer to the Configuration section to set the signal output level and the de emphasis type Figure 3 3 Male XLR connector pinout GND Signal _ Signal Signal Signal _ GND ...

Страница 10: ... emphasis 50 15 µs is available for signals sampled at fre quencies of 44 1k or 48k The three position DE EMPH switch can be used to select the customized mode of operation This selection is valid for both channels 4 2 Indicating Status of the AES EBU Carrier A multicolored LED located beside the output cord indicates the status of the carrier by changing color Configuring the left output level Co...

Страница 11: ...id Yellow The audio signal from the AES EBU carrier is invalid validity bit Red The AES EBU carrier is invalid no signal detected biphase coding error parity error Off The unit is not powered on Check that it is connected to the power supply and the power supply is properly connected to a power source ...

Страница 12: ...oss 15 dB 0 1 to 6 MHz Minimum level 0 2 Vcc ANALOG OUTPUTS Bandwidth 20 20 KHz 0 2 dB Maximum level 24 dBu Unbalance 40 dB Source impedance 55 Ω Crosstalk 100 dB 15 kHz Load impedance 600 Ω SIGNAL PROCESSING Resolution 24 bits Dynamic range 104 dB A weighting Distortion 90 dB 1 kHz De emphasis 0 5 dB digital 50 15 µs MISCELLANEOUS Allowable sampling frequency 28 kHz to 54 kHz Allowable jitter for...

Страница 13: ... Installation and Operation 9 Attenuation of sine shaped jitter 100 kHz 20 dB Display 1 multicolored LED three functions Processing time 670 µsec 48 kHz Maximum power consumption 10 K load 1 2 W 600 Ω load 2 W ...

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