AD9862PCB datasheet(2/32 Pages) AD

Part #	AD9862PCB

Description	Mixed-Signal Front-End Processor for Broadband Communications

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Manufacturer	AD [Analog Devices]

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REV. 0

–2–

AD9860/AD9862–SPECIFICATIONS

(VA = 3.3 V

5%, VD = 3.3 V

10%, fDAC = 128 MHz, fADC = 64 MHz

Normal Timing Mode, 2

DLL Setting, RSET = 4 k , 50

DAC Load,

RxPGA = +6 dB Gain, TxPGA = +20 dB Gain.)

Test

AD9860/AD9862

Tx PARAMETERS

Temp

Level

Min

Typ

Max

Unit

12-/14-BIT DAC CHARACTERISTICS

Resolution

NA

12/14

Bits

Maximum Update Rate

128

MSPS

Full-Scale Output Current

Full

I

2

20

mA

Gain Error (Using Internal Reference)

25ºCI

–5.5

+0.5

+5.5

%FS

Offset Error

25ºCI

–1

0.0

+1

%FS

Reference Voltage (REFIO Level)

25ºCI

1.15

1.22

1.28

V

Negative Differential Nonlinearity (–DNL)

25ºC

III

–0.5/–0.5

LSB

Positive Differential Nonlinearity (+DNL)

25ºC

III

1/2

LSB

Integral Nonlinearity (INL)

25ºC

III

±1/±3

LSB

Output Capacitance

25ºC

III

5

pF

Phase Noise @ 1 kHz Offset, 6 MHz Tone

Crystal and OSC IN Multiplier Enabled at 4

25ºC

III

–115

dBc/Hz

Output Voltage Compliance Range

Full

II

–0.5

+1.5

V

TRANSMIT TxPGA CHARACTERISTICS

Gain Range

25ºC

III

20

dB

Step Size Accuracy

25ºC

III

±0.1

dB

Step Size

25ºC

III

0.08

dB

Tx DIGITAL FILTER CHARACTERISTICS

Hilbert Filter Pass Band (<0.1 dB Ripple)

Full

II

12.5

38

% fDATA

1

2 /4

Interpolator Stop Band

2

Full

II

±38

% fDATA

DYNAMIC PERFORMANCE (AOUT = 20 mA FS, f = 1 MHz)

Differential Phase

25ºC

III

<0.1

Degree

Differential Gain

25ºC

III

<1

LSB

AD9860 Signal-to-Noise Ratio (SNR)

Full

I

68.2

70.7

dB

AD9860 Signal-to-Noise and Distortion Ratio

Full

I

62.5

66.1

dB

AD9860 Total Harmonic Distortion (THD)

Full

I

–74.5

–64.0

dB

AD9860 Wideband SFDR (to Nyquist)

1 MHz Analog Out, IOUT = 2 mA

25ºC

III

70.6

dBc

1 MHz Analog Out, IOUT = 20 mA

25ºCI

64.4

75

dBc

6 MHz Analog Out, IOUT = 20 mA

25ºC

III

75

dBc

AD9860 Narrowband SFDR (1 MHz Window)

1 MHz Analog Out, IOUT = 2 mA

25ºC

III

70.2

dBc

1 MHz Analog Out, IOUT = 20 mA

25ºCI

83

90

dBc

AD9862 Signal-to-Noise Ratio (SNR)

Full

I

68.9

72.0

dB

AD9862 Signal-to-Noise and Distortion Ratio

Full

I

64.75

69.8

dB

AD9862 Total Harmonic Distortion (THD)

Full

I

–75.5

–65.0

dB

AD9862 Wideband SFDR (to Nyquist)

1 MHz Analog Out, IOUT = 2 mA

25ºC

III

70.6

dBc

1 MHz Analog Out, IOUT = 20 mA

25ºCI

64.9

76.0

dBc

6 MHz Analog Out, IOUT = 20 mA

25ºC

III

76.0

dBc

AD9862 Narrowband SFDR (1 MHz Window)

1 MHz Analog Out, IOUT = 2 mA

25ºC

III

70.2

dBc

1 MHz Analog Out, IOUT = 20 mA

25ºCI

83

90

dBc

Rx PARAMETERS

RECEIVE BUFFER

Input Resistance (Differential)

Full

III

200

W

Input Capacitance (Each Input)

Full

III

5

pF

Maximum Input Bandwidth (–3 dB)

Full

III

140

MHz

Analog Input Range (Best Noise Performance)

Full

II

2

V p-p Diff

Analog Input Range (Best THD Performance)

Full

II

1

V p-p Diff

RECEIVE PGA CHARACTERISTICS

Gain Error

25ºCI

±0.3

dB

Gain Range

25ºCI

19

20

21

dB

Step Size Accuracy

25ºCI

±0.2

dB

Step Size

25ºCI

1

dB

Input Bandwidth (–3 dB, Rx Buffer Bypassed)

25ºC

III

250

MHz

10-/12-BIT ADC CHARACTERISTICS

Resolution

NA

10/12

Bits

Maximum Conversion Rate

Full

I

64

MHz

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