AFE5809ZCF datasheet(10/90 Pages) TI

10 / 90 page

AFE5809

SLOS738C – SEPTEMBER 2012 – REVISED JANUARY 2013

www.ti.com

ELECTRICAL CHARACTERISTICS (continued)

AVDD_5 V = 5 V, AVDD = 3.3 V, AVDD_ADC = 1.8 V, DVDD = 1.8 V, AC-coupled with 0.1 µF at INP and bypassed to

ground with 15 nF at INM, No active termination, VCNTL = 0 V, fIN = 5 MHz, LNA = 18 dB, PGA = 24 dB, 14Bit, sample rate =

65MSPS, LPF Filter = 15 MHz, low noise mode, VOUT = –1 dBFS, Single-ended VCNTL mode, VCNTLM = GND, ADC

configured in internal reference mode, internal 500

Ω CW feedback resistor, CMOS CW clocks, at ambient temperature TA =

25°C, Digital demodulator is disabled unless otherwise noted. Min and max values are specified across full-temperature range

with AVDD_5 V = 5 V, AVDD = 3.3 V, AVDD_ADC = 1.8 V, DVDD = 1.8 V.

PARAMETER

TEST CONDITION

MIN

TYP

MAX

UNITS

CW DOPPLER

1 channel mixer, LNA = 24 dB, 500

Ω feedback resistor

0.8

en (RTI)

Input voltage noise (CW)

nV/rtHz

8 channel mixer, LNA = 24 dB, 62.5

Ω feedback resistor

0.33

1 channel mixer, LNA = 24 dB, 500

Ω feedback resistor

en (RTO)

Output voltage noise (CW)

nV/rtHz

8 channel mixer, LNA = 24 dB, 62. 5

Ω feedback resistor

1 channel mixer, LNA = 18 dB, 500

Ω feedback resistor

1.1

en (RTI)

Input voltage noise (CW)

nV/rtHz

8 channel mixer, LNA = 18 dB, 62.5

Ω feedback resistor

0.5

1 channel mixer, LNA = 18 dB, 50 0

Ω feedback resistor

8.1

en (RTO)

Output voltage noise (CW)

nV/rtHz

8 channel mixer, LNA = 18 dB, 62.5

Ω feedback resistor

4.0

Rs = 100

Ω,RIN =High Z, FIN = 2MHz (LNA, I/Q mixer and summing

Noise figure

1.8

amplifier/filter)

fCW

CW Operation Range

(2)

CW signal carrier frequency

MHz

1X CLK (16X mode)

CW Clock frequency

16X CLK(16X mode)

128

MHz

4X CLK(4X mode)

AC coupled LVDS clock amplitude

0.7

CLKM_16X-CLKP_16X; CLKM_1X-CLKP_1X

Vpp

AC coupled LVPECL clock amplitude

1.6

CLK duty cycle

1X and 16X CLKs

35%

65%

Common-mode voltage

Internal provided

2.5

VCMOS

CMOS Input clock amplitude

CW Mixer conversion loss

CW Mixer phase noise

1 kHz off 2 MHz carrier

156

dBc/Hz

Input dynamic range

FIN = 2MHz, LNA = 24/18/12dB

160, 164, 165

dBFS/Hz

f1 = 5.00 MHz, f2 = 5.01 MHz, both tones at -8.5 dBm amplitude, 8

–50

dBc

channels summed up in-phase, CW feedback resistor = 87

IMD3

Intermodulation distortion

f1 = 5 MHz, F2= 5.01 MHz, both tones at –8. 5dBm amplitude, Single

–60

dBc

channel case, CW feed back resistor = 500

I/Q Channel gain matching

16X mode

±0.04

I/Q Channel phase matching

16X mode

±0.1

Degree

I/Q Channel gain matching

4X mode

±0.04

I/Q Channel phase matching

4X mode

±0.1

Degree

FIN = 2.01 MHz, 300 mV input amplitude, CW clock frequency = 2.00

Image rejection ratio

–50

dBc

MHz

(2)

In the 16X operation mode, the CW operation range is limited to 8MHz due to the 16X CLK. The maximum clock frequency for the 16X

CLK is 128MHz. In the 8X, 4X, and 1X modes, higher CW signal frequencies up to 15 MHz can be supported with small degradation in

performance, see application information: CW clock selection

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