AD9865 데이터 시트보기 (PDF) - Analog Devices

부품명

상세내역

제조사

AD9865

Broadband Modem Mixed-Signal Front End

Analog Devices 

AD9865

Parameter

Tx DIGITAL FILTER CHARACTERISTICS (4× Interpolation)

Latency (Relative to 1/ FDAC)

−0.2 dB Bandwidth

−3 dB Bandwidth

Stop Band Rejection (0.289 fOSCIN to 0.711 fOSCIN)

PLL CLK MULTIPLIER

OSCIN Frequency Range

Internal VCO Frequency Range

Duty Cycle

OSCIN Impedance

CLKOUT1 Jitter5

CLKOUT2 Jitter6

CLKOUT1 and CLKOUT2 Duty Cycle7

Temp Test Level Min

Full V

Full V

Full V

Full V

Full IV

5

Full IV

20

Full II

40

25°C V

25°C III

25°C III

Full III

45

Typ

Max Unit

96

0.1095

0.1202

50

Cycles

fOUT/fDAC

fOUT /fDAC

dB

80

200

60

100//3

12

6

55

MHz

MHz

%

ΜΩ/pF

ps rms

ps rms

%

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

Rx INPUT CHARACTERISTICS

Input Voltage Span (RxPGA Gain = −10 dB)

Input Voltage Span (RxPGA Gain = +48 dB)

Input Common-Mode Voltage

Differential Input Impedance

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

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

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

RxPGA CHARACTERISTICS

Minimum Gain

Maximum Gain

Gain Step Size

Gain Step Accuracy

Gain Range Error

RxLPF CHARACTERISTICS

Cutoff Frequency (f−3 dBF ) Range

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

Pass-Band Ripple

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

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

ADC DC CHARACTERISTICS

Resolution

Conversion Rate

Temp

Full

Full

25°C

25°C

25°C

25°C

25°C

25°C

25°C

25°C

25°C

25°C

Full

25°C

25°C

25°C

25°C

NA

Full

Test Level Min Typ Max Unit

III

6.33

V p-p

III

8

mV p-p

III

1.3

V

III

400

Ω

4.0

pF

III

53

MHz

III

3.0

nV/rtHz

III

2.4

nV/rtHz

III

−12

dB

III

48

dB

III

1

dB

III

Monotonic

dB

III

0.5

dB

III

15

35

MHz

III

20

dB

III

±1

dB

III

20

ns

III

100

ns

NA

10

Bits

II

5

80

MSPS

Rev. A | Page 4 of 48

Share Link: