Datasheet

AFE5805
www.ti.com SBOS421D –MARCH 2008–REVISED MARCH 2010
ELECTRICAL CHARACTERISTICS (continued)
AVDD_5V = 5.0V, AVDD1 = AVDD2 = DVDD = 3.3V, LVDD = 1.8V, single-ended input into LNA, ac-coupled (1.0mF),
V
CNTL
= 1.0V, f
IN
= 5MHz, Clock = 40MSPS, 50% duty cycle, internal reference mode, ISET = 56kΩ, LVDS buffer
setting = 3.5mA, at ambient temperature T
A
= +25°C, unless otherwise noted.
AFE5805
PARAMETER TEST CONDITIONS MIN TYP MAX UNIT
POWER SUPPLY
Supply Voltages
AVDD1, AVDD2, DVDD Operating 3.15 3.3 3.47 V
AVDD_5V Operating 4.75 5 5.25 V
LVDD 1.7 1.8 1.9 V
Supply Currents
IAVDD1 (ADC) at 40MSPS 99 110 mA
IAVDD2 (VCA) TGC mode 146 156 mA
CW mode 79 85 mA
IAVDD_5V (VCA) TGC mode 8 10 mA
CW mode 55 61 mA
IDVDD (VCA) 1.5 3.0 mA
ILVDD (ADC) At 40MSPS 70 80 mA
Power dissipation, total All channels, TGC mode, no signal 980 1080 mW
All channels, CW mode , no signal
(6)
580 620 mW
TGC mode, no clock applied, no signal 615 mW
POWER-DOWN MODES
Power-down dissipation, total Complete power-down mode 64 85 mW
Power-down response time
(7)
1.0 ms
Power-up response time
(7)
PD to valid output (90% level) 50 ms
Power-down dissipation
(7)
Partial power-down mode 233 mW
THERMAL CHARACTERISTICS
Temperature range 0 +70 °C
Thermal resistance T
JA
32 °C/W
T
JC
4.2 °C/W
(6) The ADC section is powered down during CW mode operation.
(7) With VCA_PD and ADC_PD pins = high. The ADC_PD pin is configured for partial power-down (see the Power-Down Modes section).
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