–2–

REV. B

AD1855–SPECIFICATIONS

TEST CONDITIONS UNLESS OTHERWISE NOTED

+5.0 V

Ambient Temperature

+25

°C

Input Clock

24.576 MHz (512

× F

Input Signal

1.0013 kHz

–0.5 dB Full Scale

Input Sample Rate

48 kHz

Measurement Bandwidth

20 Hz to 20 kHz

Word Width

20 Bits

Load Impedance

6 k

Ω

Input Voltage HI

4.0 V

Input Voltage LO

0.8 V

Performance of right and left channels are identical (exclusive of the Interchannel Gain Mismatch and Interchannel Phase Deviation specifications).

ANALOG PERFORMANCE

Min

Typ

Max

Units

Resolution

20

Bits

Dynamic Range (20 Hz to 20 kHz, –60 dB Input)

No Filter

110

dB

With A-Weighted Filter

108

113

dB

Total Harmonic Distortion + Noise

–97

–91

dB

0.0014

%

Analog Outputs

Differential Output Range (

±Full Scale)

5.6

V p-p

Output Impedance at Each Output Pin

200

Ω

Output Capacitance at Each Output Pin

20

pF

CMOUT

2.5

V

Gain Error

–5.0

±3.0

+5.0

%

Interchannel Gain Mismatch

–0.15

+0.15

dB

Gain Drift

150

300

ppm/

°C

Interchannel Crosstalk (EIAJ Method)

–120

dB

Interchannel Phase Deviation

±0.1

Degrees

Mute Attenuation

–120

dB

De-Emphasis Gain Error

±0.1

dB

10%)

Min

Max

Units

35

ns

48

ns

70

ns

MCLK LO Pulsewidth (All Mode)

0.4

× t

DMP

ns

MCLK HI Pulsewidth (All Mode)

0.4

ns

BCLK HI Pulsewidth

20

ns

BCLK LO Pulsewidth

20

ns

BCLK Period

140

ns

L

RCLK Setup

20

ns

L

RCLK Hold (DSP Serial Port Mode Only)

5

ns

SDATA Setup

5

ns

SDATA Hold

10

ns

PD/RST LO Pulsewidth

4 MCLK Periods

ns