LM1973

www.ti.com

SNAS093B – DECEMBER 1994 – REVISED MARCH 2013

ELECTRICAL CHARACTERISTICS

(1) (2)

LM1973

Units

Parameter

Test Conditions

(Limits)

Supply Current

Inputs are AC Grounded

3

5

mA (max)

THD+N

Total Harmonic Distortion plus Noise

0.0008

0.003

% (max)

XTalk

Crosstalk (Channel Separation)

110

dB

(5)

SNR

Signal-to-Noise Ratio

Inputs are AC Grounded

at

−12dB Attenuation

120

110

dB (min)

A-Weighted

Mute Attenuation

104

96

dB (min)

Attenuation Step Size Error

0dB to

−16dB

±0.05

dB (max)

−17dB to −48dB

±0.1

dB (max)

−49dB to −76dB

±0.25

dB (max)

Absolute Attenuation Error

Attenuation at 0dB

0.01

0.5

dB (min)

Attenuation at

−20dB

19.8

19.0

dB (min)

Attenuation at

−40dB

39.5

38.5

dB (min)

Attenuation at

−60dB

59.3

58.0

dB (min)

Attenuation at

−76dB

74.5

73.0

dB (min)

Channel-to-Channel Attenuation

Attenuation at 0dB,

−20dB, −40dB,

±0.5

dB (max)

−60dB

Tracking Error

Attenuation at

−76dB

±0.75

dB (max)

Analog Input Leakage Current

Inputs are AC Grounded

10.0

100

nA (max)

AC Input Impedance

40

20

k

Ω (min)

60

k

Ω (max)

Input Current

1.0

±100

nA (max)

Clock Frequency

3

2

MHz (max)

High-Level Input Voltage

at Pins 9, 10, 11

2.0

V (min)

Low-Level Input Voltage

at Pins 9, 10, 11

0.8

V (max)

Data-Out Levels (Pin 12)

0.1

V (max)

5.9

V (min)

(1)

Absolute Maximum Ratings indicate limits beyond which damage to the device may occur. Operating Ratings indicate conditions for

which the device is functional. Electrical Characteristics state DC and AC electrical specifications under particular test conditions and

specific performance limits. This assumes that the device is within the Operating Ratings. The typical value is a good indication of

device performance.

(2)

All voltages are measured with respect to GND (pins 1, 3, 5, 14, 17), unless otherwise specified.

(3)

Typicals are measured at 25°C and represent the parametric norm.

(4)

Limits are specified to TI's AOQL (Average Output Quality Level).

(5)

At the present time the Crosstalk measurement is specified as a typical only, which is due to a hardware limitation of the automated test

equipment.

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