Datasheet

AFE5808
www.ti.com SLOS688C –SEPTEMBER 2010–REVISED APRIL 2012
ELECTRICAL CHARACTERISTICS (continued)
AVDD_5V = 5V, AVDD = 3.3V, AVDD_ADC = 1.8V, DVDD = 1.8V, AC-coupled with 0.1µF at INP and bypassed to ground
with 15nF at INM, No active termination, V
CNTL
= 0V, f
IN
= 5MHz, LNA = 18dB, PGA = 24dB, 14Bit, sample rate = 65MSPS,
LPF Filter = 15MHz, low noise mode, V
OUT
= –1dBFS, internal 500Ω CW feedback resistor, CMOS CW clocks, ADC
configured in internal reference mode, Single-ended VCNTL mode, VCNTLM = GND, at ambient temperature T
A
= 25°C,
unless otherwise noted. Min and max values are specified across full-temperature range with AVDD_5V = 5V, AVDD = 3.3V,
AVDD_ADC = 1.8V, DVDD = 1.8V
PARAMETER TEST CONDITION MIN TYP MAX UNITS
ADC input full-scale range 2 Vpp
LVDS Rate 65MSPS at 14 bit 910 Mbps
POWER DISSIPATION
AVDD Voltage 3.15 3.3 3.6 V
AVDD_ADC Voltage 1.7 1.8 1.9 V
AVDD_5V Voltage 4.75 5 5.5 V
DVDD Voltage 1.7 1.8 1.9 V
TGC low noise mode, 65MSPS 153 175
TGC low noise mode, 40MSPS 142
Total power dissipation per channel mW/CH
TGC medium power mode, 40MSPS 110
TGC low power mode, 40MSPS 98
TGC low noise mode, no signal 203 235
TGC medium power mode, no signal 126
TGC low power mode, no signal 99
CW-mode, no signal 147 170
AVDD (3.3V) Current mA
TGC low noise mode, 500mVpp Input,1% duty cycle 210
TGC medium power mode, 500mVpp Input, 1% duty cycle 133
TGC low power, 500mVpp Input, 1% duty cycle 105
CW-mode, 500mVpp Input 375
TGC mode no signal 16.5 22
CW Mode no signal, 16X clock = 32MHz 32
AVDD_5V Current mA
TGC mode, 500mVpp Input,1% duty cycle 16.5
CW-mode, 500mVpp Input 42.5
TGC low noise mode, no signal 93.5 107
TGC medium power mode, no signal 62
TGC low power mode, no signal 50
VCA Power dissipation mW/CH
TGC low noise mode, 500mVpp input,1% duty cycle 97
TGC medium power mode, 500mVpp Input, 1% duty cycle 65
TGC low power mode, 500mVpp input,1% duty cycle 54
CW Power dissipation No signal, ADC shutdown CW Mode no signal, 16X clock = 32MHz 80
mW/CH
500mVpp input, ADC shutdown , 16X clock = 32MHz 173
AVDD_ADC(1.8V) Current 65MSPS 187 205 mA
DVDD(1.8V) Current 65MSPS 77 110 mA
ADC Power dissipation/CH 65MSPS 59 69 mW/CH
50MSPS 51
40MSPS 46
20MSPS 35
Power dissipation in power down mode PDN_VCA = High, PDN_ADC = High 25 mW/CH
Complete power-down PDN_Globa l= High 0.6
Power-down response time Time taken to enter power down 1 µs
Power-up response time VCA power down 2µs+1% of PDN
time
µs
ADC power down 1
Complete power down 2.5 ms
fin = 5MHz, at 50mVpp noise at 1KHz on supply
(3)
–65 dBc
Power supply modulation ratio, AVDD and
AVDD_5V
fin = 5MHz, at 50mVpp noise at 50KHz on supply
(3)
–65 dBc
Power supply rejection ratio f = 10kHz,VCNTL = 0V (high gain), AVDD –40 dBc
f = 10kHz,VCNTL = 0V (high gain), AVDD_5V –55 dBc
f = 10kHz,VCNTL = 1V (low gain), AVDD –50 dBc
(3) PSMR specification is with respect to input signal amplitude.
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