AD9865BCPRL datasheet(4/48 Pages) AD

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AD9865

Rev. A | Page 4 of 48

Parameter

Temp

Test Level

Min

Typ

Max

Unit

Tx DIGITAL FILTER CHARACTERISTICS (4× Interpolation)

Latency (Relative to 1/ FDAC)

Full

Cycles

−0.2 dB Bandwidth

Full

0.1095

fOUT/fDAC

−3 dB Bandwidth

Full

0.1202

fOUT /fDAC

Stop Band Rejection (0.289 fOSCIN to 0.711 fOSCIN)

Full

PLL CLK MULTIPLIER

OSCIN Frequency Range

Full

MHz

Internal VCO Frequency Range

Full

200

MHz

Duty Cycle

Full

OSCIN Impedance

25°C

100//3

ΜΩ/pF

CLKOUT1 Jitter5

25°C

III

ps rms

CLKOUT2 Jitter6

25°C

III

ps rms

CLKOUT1 and CLKOUT2 Duty Cycle7

Full

III

1 Gain error and gain temperature coefficients are based on the ADC only (with a fixed 1.23 V external reference and a 1 V p-p differential analog input).

2 TxDAC IOUTFS = 20 mA, differential output with 1:1 transformer with source and load termination of 50 Ω, FOUT = 5 MHz, 4x interpolation.

3 IOUN full-scale current = 80 mA, fOSCIN = 80 MHz, fDAC =160 MHz, 2x interpolation.

4 Use external amplifier to drive additional load.

5 Internal VCO operates at 200 MHz , set to divide-by

-1.

6 Because CLKOUT2 is a divided down version of OSCIN, its jitter is typically equal to OSCIN.

7 CLKOUT2 is an inverted replica of OSCIN, if set to divide-by-1.

Rx PATH SPECIFICATIONS

AVDD = 3.3 V ± 5%, DVDD = CLKVDD = DRVDD = 3.3 V ± 10%; half- or full-duplex operation with CONFIG = 0 default power bias

settings, unless otherwise noted.

Table 2.

Parameter

Temp

Test Level

Min

Typ

Max

Unit

Rx INPUT CHARACTERISTICS

Input Voltage Span (RxPGA Gain = −10 dB)

Full

III

6.33

V p-p

Input Voltage Span (RxPGA Gain = +48 dB)

Full

III

mV p-p

Input Common-Mode Voltage

25°C

III

1.3

Differential Input Impedance

25°C

III

400

4.0

Ω

Input Bandwidth (with RxLPF Disabled, RxPGA = 0 dB)

25°C

III

MHz

Input Voltage Noise Density (RxPGA Gain = 36 dB, f−3 dBF = 26 MHz)

25°C

III

3.0

nV/rtHz

Input Voltage Noise Density (RxPGA Gain = 48 dB, f−3 dBF = 26 MHz)

25°C

III

2.4

nV/rtHz

RxPGA CHARACTERISTICS

Minimum Gain

25°C

III

−12

Maximum Gain

25°C

III

Gain Step Size

25°C

III

Gain Step Accuracy

25°C

III

Monotonic

Gain Range Error

25°C

III

0.5

RxLPF CHARACTERISTICS

Cutoff Frequency (f−3 dBF ) Range

Full

III

MHz

Attenuation at 55.2 MHz with f−3 dBF = 21 MHz

25°C

III

Pass-Band Ripple

25°C

III

±1

Settling Time to 5 dB RxPGA Gain Step @ fADC = 50 MSPS

25°C

III

Settling Time to 60 dB RxPGA Gain Step @ fADC = 50 MSPS

25°C

III

100

ADC DC CHARACTERISTICS

Resolution

Bits

Conversion Rate

Full

MSPS

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