Block Downconverters

C-Band, X-Band, Ku-Band

BD Series Block Downconverters are designed to translate a block of C-Band, X-Band, or Ku-Band RF input frequencies to L-Band. These block downconverters have the quality, stability and performance required for demanding receiver applications in today’s diverse satellite communications systems.

  • C-Band, X-Band, or Ku-Band input
  • L- Band output:
    • C-Band = 800 MHz BW
    • X-Band = 500 MHz BW
    • Ku-Band = 750, 800 or 1050 MHz BW
  • Phase-locked oscillator
  • INTELSAT/EUTELSAT-compliant phase noise

 

Features

BD Series converters may be powered by one of two methods: Either supply +Vdc between the center conductor and ground of the L-Band output cable (cable powered), or apply +Vdc to the DC
power RFI and the ground lug. The alarm RFIs provide a Form ‘C’ contact set which indicates a fault if phase lock is lost. The alarm circuit is rated at 100 V at 50 mA.

Options

  • Stable internal reference (20 MHz) or externally referenced (10 MHz)
  • 13 dB or 23 dB (minimum) conversion gain

Specifications (C-Band)

Parameter

Notes

Min.

Nom./Typ.+

Max.

Units

Output Spectrum   Inverted
LO Stability (Option I) Over temperature   ±2.0
±2.5 ppm
LO Frequency Set - Tolerance (Opt. I only)

At midband (4.15 GHz in)

1.0 ± 5150


GHz ± Hz

LO Phase Noise 100 Hz
1 kHz
10 kHz
100kHz
1 MHz
    -60
-70
-80
-90
-100
dBc/Hz
dBc/Hz
dBc/Hz
dBc/Hz
dBc/Hz
LO Leakage At IF output (5.150 GHz) -50 dBm
Spurious Signal related; IF Band
Non-signal related; IF Band
    -60
-80
dBc
dBm
Gain Level, Median = (Max + Min)/2 Standard
Option 2
13
23
14
25
15
27
dB
dB
Gain Flatness Full-band
Per 40 MHz


±1.0
±0.25
dB
dB
Gain Stability Per week, constant temp
Vs. temperature
    ±0.50
±1.5
dB
dB
Power Output At 1 dB compression
+8 +10   dBm
3rd Order Intercept Output (OIP3) +18 +20   dBm
Noise Figure
At +23 °C
  13 15 dB
VSWR Input (50 ohms)
Output (50 ohms)
  1.35
1.35
1.5
1.5
:1
:1
Image Rejection   40      dB
Fault Alarm
Phase lock
  Form-C Contact (100 V/50 mA)    
Connectors RF In, IF Out/DC In
DC In/Alarm Out
Ext. Ref. In (Option E)
  SMA (F)
RFI Feedthrough
SMA (F)
   
Power Requirements
Voltage
Current
+11.5



350
+25
450
Vdc
mA
Operating Temperature
Ambient
-40   +70 °C

 

Specifications (X-Band)

Parameter

Notes

Min.

Nom./Typ.+

Max.

Units

Output Spectrum   Non-Inverted
LO Stability (Option I) Over temperature   ±2.0
±2.5 ppm
LO Frequency Set - Tolerance (Opt. I only)

At midband (7.30 GHz in)

1.0 ± 5150


GHz ± Hz

LO Phase Noise 100 Hz
1 kHz
10 kHz
100kHz
1 MHz
    -60
-70
-80
-90
-100
dBc/Hz
dBc/Hz
dBc/Hz
dBc/Hz
dBc/Hz
LO Leakage At IF output (6.30 GHz) -50 dBm
Spurious Signal related; IF Band
Non-signal related; IF Band
    -60
-80
dBc
dBm
Gain Level, Median = (Max + Min)/2 Standard
Option 2
13
23
14
25
15
27
dB
dB
Gain Flatness Full-band
Per 40 MHz


±1.0
±0.25
dB
dB
Gain Stability Per week, constant temp
Vs. temperature
    ±0.50
±1.5
dB
dB
Power Output At 1 dB compression
+8 +10   dBm
3rd Order Intercept Output (OIP3) +18 +20   dBm
Noise Figure
At +23 °C
  13 15 dB
VSWR Input (50 ohms)
Output (50 ohms)
  1.35
1.35
1.5
1.5
:1
:1
Image Rejection   40      dB
Fault Alarm
Phase lock
  Form-C Contact (100 V/50 mA)    
Connectors RF In, IF Out/DC In
DC In/Alarm Out
Ext. Ref. In (Option E)
  SMA (F)
RFI Feedthrough
SMA (F)
   
Power Requirements
Voltage
Current
+11.5



350
+25
400
Vdc
mA
Operating Temperature
Ambient
-40   +70 °C

 

Specifications (Ku-Band)

Parameter

Notes

Min.

Nom./Typ.+

Max.

Units

Output Spectrum   Non-Inverted
LO Stability (Option I) Over temperature   ±2.0
±2.5 ppm
LO Frequency Set - Tolerance (Opt. I only) At midband:
F, 10.75 GHz in
B, 11.00 GHz in
J, 11.75 GHz in
C, 12.25 GHz in
1.0 ± 9750
1.0 ± 10000
1.0 ± 10750
1.0 ± 11250

GHz ± Hz
GHz ± Hz
GHz ± Hz
GHz ± Hz
LO Phase Noise 100 Hz
1 kHz
10 kHz
100kHz
1 MHz
    -60
-70
-80
-90
-100
dBc/Hz
dBc/Hz
dBc/Hz
dBc/Hz
dBc/Hz
LO Leakage At IF output:
F, 9.75 GHz;
B, 10.00 GHz;
J, 10.75 GHz;
C, 11.25 GHz
-50 dBm
Spurious Signal related; IF Band
Non-signal related; IF Band
    -60
-80
dBc
dBm
Gain Level, Median = (Max + Min)/2 Standard
Option 2
13
23
14
25
15
27
dB
dB
Gain Flatness Full-band
Per 40 MHz


±1.0
±0.25
dB
dB
Gain Stability Per week, constant temp
Vs. temperature
    ±0.50
±1.5
dB
dB
Power Output At 1 dB compression
+8 +10   dBm
3rd Order Intercept Output (OIP3) +18 +20   dBm
Noise Figure
At +23 °C
  13 15 dB
VSWR Input (50 ohms)
Output (50 ohms)
  1.35
1.35
1.5
1.5
:1
:1
Image Rejection   40      dB
Fault Alarm
Phase lock
  Form-C Contact (100 V/50 mA)    
Connectors RF In, IF Out/DC In
DC In/Alarm Out
Ext. Ref. In (Option E)
  SMA (F)
RFI Feedthrough
SMA (F)
   
Power Requirements
Voltage
Current
+11.5



350
+25
450
Vdc
mA
Operating Temperature
Ambient
-40   +70 °C

Satcom - Block Converters Outline Drawing

Satcom - Block Converters Outline Drawing

  • Features

    Features

    BD Series converters may be powered by one of two methods: Either supply +Vdc between the center conductor and ground of the L-Band output cable (cable powered), or apply +Vdc to the DC
    power RFI and the ground lug. The alarm RFIs provide a Form ‘C’ contact set which indicates a fault if phase lock is lost. The alarm circuit is rated at 100 V at 50 mA.

    Options

    • Stable internal reference (20 MHz) or externally referenced (10 MHz)
    • 13 dB or 23 dB (minimum) conversion gain
  • Specifications

    Specifications (C-Band)

    Parameter

    Notes

    Min.

    Nom./Typ.+

    Max.

    Units

    Output Spectrum   Inverted
    LO Stability (Option I) Over temperature   ±2.0
    ±2.5 ppm
    LO Frequency Set - Tolerance (Opt. I only)

    At midband (4.15 GHz in)

    1.0 ± 5150


    GHz ± Hz

    LO Phase Noise 100 Hz
    1 kHz
    10 kHz
    100kHz
    1 MHz
        -60
    -70
    -80
    -90
    -100
    dBc/Hz
    dBc/Hz
    dBc/Hz
    dBc/Hz
    dBc/Hz
    LO Leakage At IF output (5.150 GHz) -50 dBm
    Spurious Signal related; IF Band
    Non-signal related; IF Band
        -60
    -80
    dBc
    dBm
    Gain Level, Median = (Max + Min)/2 Standard
    Option 2
    13
    23
    14
    25
    15
    27
    dB
    dB
    Gain Flatness Full-band
    Per 40 MHz


    ±1.0
    ±0.25
    dB
    dB
    Gain Stability Per week, constant temp
    Vs. temperature
        ±0.50
    ±1.5
    dB
    dB
    Power Output At 1 dB compression
    +8 +10   dBm
    3rd Order Intercept Output (OIP3) +18 +20   dBm
    Noise Figure
    At +23 °C
      13 15 dB
    VSWR Input (50 ohms)
    Output (50 ohms)
      1.35
    1.35
    1.5
    1.5
    :1
    :1
    Image Rejection   40      dB
    Fault Alarm
    Phase lock
      Form-C Contact (100 V/50 mA)    
    Connectors RF In, IF Out/DC In
    DC In/Alarm Out
    Ext. Ref. In (Option E)
      SMA (F)
    RFI Feedthrough
    SMA (F)
       
    Power Requirements
    Voltage
    Current
    +11.5



    350
    +25
    450
    Vdc
    mA
    Operating Temperature
    Ambient
    -40   +70 °C

     

    Specifications (X-Band)

    Parameter

    Notes

    Min.

    Nom./Typ.+

    Max.

    Units

    Output Spectrum   Non-Inverted
    LO Stability (Option I) Over temperature   ±2.0
    ±2.5 ppm
    LO Frequency Set - Tolerance (Opt. I only)

    At midband (7.30 GHz in)

    1.0 ± 5150


    GHz ± Hz

    LO Phase Noise 100 Hz
    1 kHz
    10 kHz
    100kHz
    1 MHz
        -60
    -70
    -80
    -90
    -100
    dBc/Hz
    dBc/Hz
    dBc/Hz
    dBc/Hz
    dBc/Hz
    LO Leakage At IF output (6.30 GHz) -50 dBm
    Spurious Signal related; IF Band
    Non-signal related; IF Band
        -60
    -80
    dBc
    dBm
    Gain Level, Median = (Max + Min)/2 Standard
    Option 2
    13
    23
    14
    25
    15
    27
    dB
    dB
    Gain Flatness Full-band
    Per 40 MHz


    ±1.0
    ±0.25
    dB
    dB
    Gain Stability Per week, constant temp
    Vs. temperature
        ±0.50
    ±1.5
    dB
    dB
    Power Output At 1 dB compression
    +8 +10   dBm
    3rd Order Intercept Output (OIP3) +18 +20   dBm
    Noise Figure
    At +23 °C
      13 15 dB
    VSWR Input (50 ohms)
    Output (50 ohms)
      1.35
    1.35
    1.5
    1.5
    :1
    :1
    Image Rejection   40      dB
    Fault Alarm
    Phase lock
      Form-C Contact (100 V/50 mA)    
    Connectors RF In, IF Out/DC In
    DC In/Alarm Out
    Ext. Ref. In (Option E)
      SMA (F)
    RFI Feedthrough
    SMA (F)
       
    Power Requirements
    Voltage
    Current
    +11.5



    350
    +25
    400
    Vdc
    mA
    Operating Temperature
    Ambient
    -40   +70 °C

     

    Specifications (Ku-Band)

    Parameter

    Notes

    Min.

    Nom./Typ.+

    Max.

    Units

    Output Spectrum   Non-Inverted
    LO Stability (Option I) Over temperature   ±2.0
    ±2.5 ppm
    LO Frequency Set - Tolerance (Opt. I only) At midband:
    F, 10.75 GHz in
    B, 11.00 GHz in
    J, 11.75 GHz in
    C, 12.25 GHz in
    1.0 ± 9750
    1.0 ± 10000
    1.0 ± 10750
    1.0 ± 11250

    GHz ± Hz
    GHz ± Hz
    GHz ± Hz
    GHz ± Hz
    LO Phase Noise 100 Hz
    1 kHz
    10 kHz
    100kHz
    1 MHz
        -60
    -70
    -80
    -90
    -100
    dBc/Hz
    dBc/Hz
    dBc/Hz
    dBc/Hz
    dBc/Hz
    LO Leakage At IF output:
    F, 9.75 GHz;
    B, 10.00 GHz;
    J, 10.75 GHz;
    C, 11.25 GHz
    -50 dBm
    Spurious Signal related; IF Band
    Non-signal related; IF Band
        -60
    -80
    dBc
    dBm
    Gain Level, Median = (Max + Min)/2 Standard
    Option 2
    13
    23
    14
    25
    15
    27
    dB
    dB
    Gain Flatness Full-band
    Per 40 MHz


    ±1.0
    ±0.25
    dB
    dB
    Gain Stability Per week, constant temp
    Vs. temperature
        ±0.50
    ±1.5
    dB
    dB
    Power Output At 1 dB compression
    +8 +10   dBm
    3rd Order Intercept Output (OIP3) +18 +20   dBm
    Noise Figure
    At +23 °C
      13 15 dB
    VSWR Input (50 ohms)
    Output (50 ohms)
      1.35
    1.35
    1.5
    1.5
    :1
    :1
    Image Rejection   40      dB
    Fault Alarm
    Phase lock
      Form-C Contact (100 V/50 mA)    
    Connectors RF In, IF Out/DC In
    DC In/Alarm Out
    Ext. Ref. In (Option E)
      SMA (F)
    RFI Feedthrough
    SMA (F)
       
    Power Requirements
    Voltage
    Current
    +11.5



    350
    +25
    450
    Vdc
    mA
    Operating Temperature
    Ambient
    -40   +70 °C
  • Diagrams

    Satcom - Block Converters Outline Drawing

    Satcom - Block Converters Outline Drawing

  • Literature
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