AD9873 Ver la hoja de datos (PDF) - Analog Devices

Número de pieza

componentes Descripción

Fabricante

AD9873

Analog Front End Converter for Set-Top Box, Cable Modem

Analog Devices 

AD9873–SPECIFICATIONS

Parameter

Test

Temp Level

Min

Typ

Max

CMOS LOGIC INPUTS

Logic “1” Voltage

Logic “0” Voltage

Logic “1” Current

Logic “0” Current

Input Capacitance

25ЊC

III

2.0

25ЊC

III

0.8

25ЊC

III

12

25ЊC

III

12

25ЊC

IV

3

CMOS LOGIC OUTPUTS (1 mA Load)

Logic “1” Voltage

25ЊC

III

2.4

Logic “0” Voltage

25ЊC

III

0.4

POWER SUPPLY

Analog Supply Current IAS

25ЊC

II

Digital Supply Current IDS

Full Operating Conditions4 (Register 02h = 00h) 25ЊC

IV

Zero Input Tx4 (Register 02h = 00h)

25ЊC

II

25% Tx Burst Duty Cycle4 (Register 02h = 00h) 25ЊC

IV

Power-Down Digital Tx (Register 02h = 20h)

25°C

II

Power Supply Rejection (Differential Signal)

Tx DAC

25ЊC

IV

8-Bit ADC

25ЊC

IV

10-Bit ADC

25ЊC

IV

12-Bit ADC

25ЊC

IV

91

115

250

175

205

210

42

55

<0.25

<0.004

<0.002

<0.0004

NOTES

1Single tone generated by applying a 1.6875 MHz sine signal to the Q Channel and the 90 degree phase shifted (cosine) signal to the I Channel.

2Sampling directly with fOSCCIN/2. No degradation due to Clock Multiplier PLL. ADC Clock Select Register 08h, Bits 5 and 7 set to “1.”

3Sampling directly with fOSCCIN. No degradation due to Clock Multiplier PLL. ADC Clock Select Register 08h, Bits 5 and 7 set to “1.”

4See performance graph TPC 2 for power saving in burst mode operation.

Unit

V

V

␮A

␮A

pF

V

V

mA

mA

mA

mA

mA

% FS

% FS

% FS

% FS

–6–

REV. 0

Share Link: