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AFE8405 Datasheet(PDF) 5 Page - Texas Instruments

Part # AFE8405
Description  14-BIT, 85-MSPS, SINGLE-ADC, 8-CHANNEL WIDEBAND RECEIVER
PDF  152 Pages
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Manufacturer  TI [Texas Instruments]
Direct Link  http://www.ti.com
Logo TI - Texas Instruments

AFE8405 Datasheet(HTML) 5 Page - Texas Instruments

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3.4
THERMAL CHARACTERISTICS
3.5
POWER DISSIPATION
AFE8405
14-BIT, 85-MSPS, SINGLE-ADC, 8-CHANNEL WIDEBAND RECEIVER
www.ti.com
SLWS212 – OCTOBER 2008
THERMAL CONDUCTIVITY(1)
MIN
TYP
MAX
UNIT
Theta junction-to-ambient (0 LFPM)
14
°C/W
Theta junction-to-ambient (100 LFPM)
13
°C/W
RθJA
Theta junction-to-ambient (250 LFPM)
12.2
°C/W
Theta junction-to-ambient (500 LFPM)
11.6
°C/W
RθJC
Theta junction-to-case
2.8
°C/W
(1)
Air flow reduces RθJA and is highly recommended.
Typical values at TA = 25°C, UMTS mode, sampling rate = 61.44 MSPS, and rxclk = 122.88 MHz (unless otherwise noted)
PARAMETER
TEST CONDITIONS
MIN
TYP
MAX
UNIT
IAVDD
Analog supply current
Six active DDC channels
123
mA
IDRVDD Analog I/O supply current
21.5
mA
IDVDD
Digital core supply current
959
mA
IVDDS
Digital I/O supply current (1)
100
mA
Analog power dissipation
477
mW
Digital power dissipation (2)
1.439
W
Total power dissipation (2)
1.9
W
IAVDD
Analog supply current
Eight active DDC channels
123
mA
IDRVDD Analog I/O supply current
21.5
mA
IDVDD
Digital core supply current
1.198
A
IVDDS
Digital I/O supply current (1)
115
mA
Analog power dissipation
477
mW
Digital power dissipation (2)
1.797
W
Total power dissipation (2)
2.3
W
(1)
Current consumption on the digital I/O supply is primarily due to the external loads and follows C
× V × F. Internal loads are estimated at
2 pF per terminal. Data outputs transition once every four clocks, whereas clock outputs transition every cycle. In general,
IVDDS = Σ (DataPad/4) × C × V × F + Σ ClockPad × C × V × F.
(2)
Excluding current consumption from the digital I/O supply, which is dependent on external loads
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SPECIFICATIONS
5



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