AFE5809ZCF datasheet(9/90 Pages) TI

9 / 90 page

AFE5809

www.ti.com

SLOS738C – SEPTEMBER 2012 – REVISED JANUARY 2013

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

AC ACCURACY

LPF Bandwidth tolerance

±5%

CH-CH group delay variation

2 MHz to 15 MHz

CH-CH Phase variation

15 MHz signal

Degree

0V < VCNTL< 0.1V (Dev-to-Dev)

±0.5

0.1V < VCNTL<1.1V(Dev-to-Dev), TA = 25°C

–1

±0.5

Gain matching

1.1V < VCNTL<1.5 V (Dev-to-Dev)

±0.5

0.1V < VCNTL<1.1 V (Dev-to-Dev), TA = 0°C and 85°C

–1.1

1.1

Gain matching

Channel-to-Channel

±0.25

Output offset

VCNTL= 0, PGA = 30dB, LNA = 24dB

–75

LSB

AC PERFORMANCE

FIN = 2MHz; VOUT = -1 dBFS

–60

FIN = 5 MHz; VOUT = -1 dBFS

–60

FIN = 5 MHz; VIN= 500 mVPP,

HD2

Second-Harmonic Distortion

dBc

–55

VOUT =–1dBFS, LNA = 18 dB, VCNTL=0.88V

FIN = 5 MHz; VIN = 250 mVPP,

–55

VOUT = –1 dBFS, LNA = 24 dB, VCNTL= 0.88V

FIN = 2 MHz; VOUT = –1dBFS

–55

FIN = 5 MHz; VOUT = –1dBFS

–55

FIN = 5 MHz; VIN = 500mVPP,

HD3

Third-Harmonic Distortion

dBc

–55

VOUT = –1 dBFS, LNA = 18 dB, VCNTL = 0.88 V

FIN = 5 MHz; VIN = 250 mVPP,

–55

VOUT = –1dBFS, LNA = 2 4dB, VCNTL= 0.88 V

FIN = 2 MHz; VOUT = –1 dBFS

–55

THD

Total Harmonic Distortion

dBc

FIN = 5 MHz; VOUT = – 1dBFS

–55

f1 = 5 MHz at –1 dBFS,

IMD3

Intermodulation distortion

–60

dBc

f2 = 5.01 MHz at –27 dBFS

XTALK

Cross-talk

FIN = 5 MHz; VOUT= –1 dBFS

–65

Phase Noise

kHz off 5 MHz (VCNTL= 0 V)

–132

dBc/Hz

LNA

Input Referred Voltage Noise

Rs = 0

Ω, f = 2 MHz, Rin = High Z, Gain = 24, 18, 12 dB

0.63, 0.70, 0.9

nV/rtHz

50, 100, 150,

High-Pass Filter

-3 dB Cut-off Frequency

KHz

200

LNA linear output

Vpp

VCAT+ PGA

VCAT Input Noise

0 dB, -40 dB Attenuation

2, 10.5

nV/rtHz

PGA Input Noise

24dB, 30dB

1.75

nV/rtHz

-3dB HPF cut-off Frequency

KHz

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