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TRF1115

Features: ` Performs First Down-Conversion in MMDS /WCS Radio 2300 MHz to 2700 MHz` Integrated Low Noise, Variable Gain Amplifier` Provisions For An External Image Reject / Band Pass Filter` Differential Mixer Provides Extra Noise Immunity` Integrated LO Buffer Amplifier` 20 dB of Gain With 10 dB ...

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SeekIC No. : 004528066 Detail

TRF1115: Features: ` Performs First Down-Conversion in MMDS /WCS Radio 2300 MHz to 2700 MHz` Integrated Low Noise, Variable Gain Amplifier` Provisions For An External Image Reject / Band Pass Filter` Differe...

TRF1115 Data Sheet

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Part Number:
TRF1115
Supply Ability:
5000

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  • Processing time
  • 15 Days
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Product Details

Description



Features:

` Performs First Down-Conversion in MMDS /WCS Radio 2300 MHz to 2700 MHz
` Integrated Low Noise, Variable Gain Amplifier
` Provisions For An External Image Reject / Band Pass Filter
` Differential Mixer Provides Extra Noise Immunity
` Integrated LO Buffer Amplifier
` 20 dB of Gain With 10 dB of Gain Control
` 3-dB Noise Figure, Typical
` Input Third Order Intercept of 0 dBm, Typical
` Input P-1 dB of 5 dBm, Typical
` LO Input Power: 3 dBm


Pinout

Connection Diagram


Specifications

    VALUE UNIT
VDD

IDD

Pin

TJ

Pd		 Positive DC Supply Voltage, VDD

Current consumption

RF Input Power

Junction Temperature

Power Dissipation		 0.0 to +5.5

200

5

200

1.1		 V

mA

dBm

°C

W
  Digital Input Pins 0.3 to 5.5  
JC

Tstg

Top		 Thermal Resistance Junction to Case(1)

Storage Temperature

Operating Temperature		 9.1

40 to 105

40 to 85		 °C/W

°C

°C
  Lead Temperature (40 sec max) 260 °C
(1) Thermal resistance is junction to ambient assuming thermal pad with 16 thermal vias under package metal base. See Recommended PCB layout.


Description

The TRF1115 is the first of two ASICs used in the receiver section of Texas Instruments MMDS/MDS/WCS/802.16x chipset. The TRF1115 down-converts the input frequency to an IF frequency in the range of 420 MHz to 480 MHz. The device provides a differential output that passes through a SAW filter before connecting to a second down converter chip. (Note: For the best performance, the Texas Instruments TRF1112 should be used to perform both the second down conversion and provide the local oscillator for the TRF1115.)

In order to provide exceptional image rejection and extra jammer rejection, the TRF1115 offers a signal path to an off-chip filter. Specifications are provided assuming an in-band 1.5-dB loss in this filter. The TRF1115 includes a differential LO buffer, mixer, and IF amplifier for improved performance. After the filter, an on-chip balun converts the signal from single-ended to differential in order to provide better noise immunity in the mixer.




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