DUT

ZL

AUDIO

ANALYZER

200 mVp-p

VDD

IN+

IN-

CIN

VDD

VCM

+

-

DUT

ZL

AUDIO

ANALYZER

VDD

200 mVp-p

VDD

IN+

IN-

CIN

VCM

LM48557

SNAS486D – JULY 2009 – REVISED MAY 2013

www.ti.com

I

2C Interface Characteristics 1.7V ≤ I2CV

DD ≤ 4.5V

(1) (2)

The following specifications apply for RPU = 1kΩ to I

2CV

DD, unless otherwise specified. Limits apply for TA = 25°C.

LM48557

Symbol

Parameter

Conditions

Units

Min(3)

Typ(4)

Max(3)

VIH

Logic Input High Threshold

SDA, SCL

0.7 x I2CVDD

V

VIL

Logic Input Low Threshold

SDA, SCL

0.3 x I2CVDD

V

VOL

Logic Output Low Threshold

SDA, ISDA = 3.6mA

0.35

V

IOH

Logic Output High Current

SDA, SCL, I2CVDD = 4.5V

2

µA

SCL Frequency

400

kHz

6

SDA Setup Time

100

ns

5

SDA Stable Time

0

250

900

ns

1

Start Condition Time

100

ns

7

Stop Condition Time

100

ns

(1)

“Absolute Maximum Ratings indicate limits beyond which damage to the device may occur, including inoperability and degradation of

device reliability and/or performance. Functional operation of the device and/or non-degradation at the Absolute Maximum Ratings or

other conditions beyond those indicated in the Operating Ratings is not implied. The Operating Ratings indicate conditions at which the

device is functional and the device should not be operated beyond such conditions. All voltages are measured with respect to the

ground pin, unless otherwise specified.

(2)

The Electrical Characteristics tables list specified specifications under the listed Operating Ratings except as otherwise modified or

specified by the Electrical Characteristics Conditions and/or Notes. Typical specifications are estimations only and are not ensured.

(3)

Datasheet min/max specification limits are specified by test or statistical analysis.

(4)

Typical values represent most likely parametric norms at TA = +25ºC, and at theOperation Rating at the time of product characterization

and are not ensured.

Figure 4. PSRR Test Circuit

Figure 5. CMRR Test Circuit

6

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