REV. 0

AD1878/AD1879–SPECIFICATIONS

–2–

TEST CONDITIONS UNLESS OTHERWISE NOTED

Supply Voltages

±5V

Ambient Temperature

25

°C

12.288

MHz

Input Signal

974

Hz

–0.5

dB Full Scale

All minimums and maximums tested except as noted.

ANALOG PERFORMANCE

Min

Typ

Max

Units

AD1879 Resolution

18

Bits

AD1878 Resolution

16

Bits

Clock Input Frequency Range

0.01

12.288

14.286

MHz

0.0025

3.072

3.5715

MHz

0.039

48

55.8

kHz

AD1879 Dynamic Range (0 kHz to 20 kHz, –60 dB input)

Stereo Mode (No A-Weight Filter)

100

103

dB

Mono Mode

106

dB

Stereo Mode (with A-Weight Filter)

105

dB

AD1879 Trimmed

Full Scale

93

98

dB

–20 dB

83

dB

AD1879 Untrimmed

Full Scale

91

96

dB

–20 dB

83

dB

AD1879 Trimmed

Full Scale

98

dB

–20 dB

100

dB

AD1878 Dynamic Range (0 kHz to 20 kHz, –60 dB 1.0936 kHz

Input Dithered with a –10 dB 21.873 kHz Sine Wave)

Stereo Mode (No A-Weight Filter)

95

97

dB

AD1878 Trimmed

Full Scale

93

95

dB

–20 dB

77

dB

AD1878 Untrimmed

Full Scale

91

94

dB

–20 dB

77

dB

AD1878 Trimmed

Full Scale

98

dB

–20 dB

100

dB

Analog Inputs

Differential Input Range

4

±5.985

±6.3

±6.615

V

Input Impedance at Each Input Pin

7.0

k

Ω

DC Accuracy

Gain Error

±1

±5%

Interchannel Gain Mismatch

0.05

0.15

dB

Gain Drift

150

ppm/

°C

AD1879 Midscale Offset Error

±200

±750

18-Bit LSBs

AD1878 Midscale Offset Error

±50

±200

16-Bit LSBs

Midscale Drift

13

ppm/

°C

Voltage Reference

2.4

2.86

3.2

V

Crosstalk (EIAJ Method)

100

105

dB

Interchannel Phase Deviation

±0.001

Degrees

NOTES

Specifications subject to change without notice.