AD71028 datasheet(3/20 Pages) AD

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AD71028

Rev. 0 | Page 3 of 20

SPECIFICATIONS

TEST CONDITIONS, UNLESS OTHERWISE NOTED

Supply Voltages (AVDD, DVDD)

5.0 V

Ambient Temperature

25°C

Input Clock

12.288 MHz

Input Signal

1 kHz, 0 dBFS

Input Sample Rate

48 kHz

Measurement Bandwidth

20 Hz to 14 kHz

Word Width

24 Bits

Load Capacitance

50 pF

Input Voltage HI

2.4 V

Input Voltage LO

0.4 V

DAC ANALOG PERFORMANCE

Table 1.

Parameter

Min

Typ

Max

Unit

Resolution

Bits

Dynamic Range (20 Hz to 14 kHz, –60 dB Input) (Encoded Output, Left = Right)

921

Total Harmonic Distortion + Noise (Encoded Output, Left = Right, 20 Hz to 14 kHz)

VIN = 0 dB

–85

–921

Differential Output Range (± Full Scale, Left = Right)

1.7

V p-p

1Measurement of encoded BTSC signal, not a measurement of end-to-end system.

BTSC ENCODER PERFORMANCE

Table 2.

Parameter

Min

Typ

Max

Unit

Channel Separation1

30 Hz to 500 Hz

500 Hz to 5 kHz

5 kHz to 13.5 kHz

Frequency Response1

30 Hz to 10 kHz

+0.5

–1.0

30 Hz to 13.5 kHz

+0.5

–1.5

1These specifications are measured with a –25 dB, 1 kHz input signal.

DIGITAL I/O

Table 3.

Parameter

Min

Typ

Max

Unit

Input Voltage HI (VIH)

2.1

Input Voltage LO (VIL)

0.8

Input Leakage (IIH @ VIH = 2.4 V)

µA

Input Leakage (IIL @ VIL = 0.8 V)

µA

High Level Output Voltage (VOH) IOH = 2 mA

DVDD – 0.5

Low Level Output Voltage (VOL) IOL = 2 mA

0.4

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