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dCSS Module

SD-Z

  • 4 RF inputs with AGC and direct sampling
  • 4 x 32 digital crossbar switch
  • 32 output user bands with AGC
  • Direct-sampled DAC, 5022MHz sample rate
  • -8dBm maximum total output power
  • -23dBm maximum output power for each of 32 UBs
  • 170-2350MHz output frequency range
  • 1800MHz maximum active bandwidth to place 32 UBs
  • Chip temperature monitoring

4 IN - 1 OUT dCSS Module

The SD-Z dCSS Module is a digital channel stacker that combines four wideband ADCs, a digital crossbar switch, 32 high-speed channelizes, one RF output DAC, and an acquisition process.

The SD-Z directly samples each of the four 170-2350MHz input signal feeds. Up to 32 channels from the four input feeds can be digitally selected, filtered, and independently converted to the desired location in the 170-2350MHz output spectrum. One RF DAC with a 5GHz sample rate directly drives the analog output.

Application

DVB-S/DVB-T

Channel Stacker
Combiner

ISDB-T

Channel Stacker
Combiner

SAT-IF

Channel Converter
Amplifier

VHF/UHF

Channel Converter
Amplifier

Function

Digital Channel Stacking Function:

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Programmable Output Power for each Output Channel:

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Programmable Bandwidth for each Output Channel:

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Input Ports
Input Port Number 4
Input Port Impedance 75 Ω
Input Frequency Range 170 ~ 2350 MHz
Input Return Loss 10 dB
Input Return Loss

Minimum: -60 dBm (48 dBµV)

Maximum Aggregate: -8 dBm (100 dBµV)

Output Ports
Output Port Number 1
Output Port Impedance 75 Ω
Output Frequency Range 170 ~ 2350 MHz - Programmable
Output Return Loss 10 dB
Output Channels Number 32 UB - Programmable
Output Channel Bandwidth for Each 5 ~ 64 MHz - Programmable
Output Channel Bandwidth over All 1800 MHz
Output Channel Power Level for Each -43 ~ -23 dBm (65 ~ 85 dBµV) - Programmable
Output Channel Power Ripple (36 MHz Bandwidth) < 2 dB
System
Programming / Debug Interface I2C / UART
Power Consumption 4.5 W @4 Inputs Ports with 32 Output Channels Enable
Power Supply Voltage 3.3V ± 0.3V
Dimension 45.0mm x 30.0mm x 4.6mm
Operating Temperature -40°C ~ 60°C

Specifications are subject to change without notice

Satellite / Terrestrial
dCSS
LNB
Headend System
SAT>IP
Digital Home Entertainment

Wireless Video Sender
Set Top Box
SoundBox
Soundbar

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