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LA7790M

Features: • Maximum RF amplifier output level of +10 dBm (75 terminator), suitable for directly driving the cable.• RF output frequency range of 5 to 70 MHz. Frequency range selection function permits broadband designs.• Electronic volume control for direct-current control of RF ...

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SeekIC No. : 004390772 Detail

LA7790M: Features: • Maximum RF amplifier output level of +10 dBm (75 terminator), suitable for directly driving the cable.• RF output frequency range of 5 to 70 MHz. Frequency range selection fu...

LA7790M Data Sheet

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Part Number:
LA7790M
Supply Ability:
5000

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  • Qty
  • 1~5000
  • Unit Price
  • Negotiable
  • Processing time
  • 15 Days
Total Cost: $ 0.00

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Product Details

Description



Features:

• Maximum RF amplifier output level of +10 dBm (75 terminator), suitable for directly driving the cable.
• RF output frequency range of 5 to 70 MHz. Frequency range selection function permits broadband designs.
• Electronic volume control for direct-current control of RF output level.
• Muting ensures ample attenuation during periods with no transmission.
• Support for both internal and external bias for I/Q modulation inputs.
• Support for I/Q modulation frequencies up to 10 MHz. (typ: 500 mVp-p)


Pinout

Connection Diagram


Specifications

Parameter Symbol Conditions Ratings Unit
Maximum supply voltage VCCmax Pins 1, 10, and 24 7 V
Circuit voltage V max Pins 1, 12, 17, 20, 21, and 23 VCC  
Circuit current I11 Output lead-in current 1  
I19 2  
Allowable power dissipation Pdmax Ta 54°C 650 mW
Operating temperature Topr   20 to + 70 °C
Storage temperature Tstg   55 to + 150 °C



Description

The LA7790M is a QPSK data transmitter for digital cable TV applications. By integrating the I/Q quadrature modulator, RF amplifier, electronic volume control, mute control, and other functions onto a single chip, parts count is reduced and set size is miniaturized.




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