LM4856 datasheet(4/23 Pages) NSC

4 / 23 page

Electrical Characteristics (Notes 3, 8) (Continued)

The following specifications apply for V

DD= 5.0V, TA= 25˚C unless otherwise specified.

Symbol

Parameter

Conditions

LM4856

Units

(Limits)

Typical

(Note 5)

Limits

(Notes 6,

11)

Logic Low Input Voltage

0.4

GND

V (max)

V (min)

Digital Volume Range

IN and LIN)

Input referred minimum gain

-34.5

-35.1

-33.9

dB (min)

dB (max)

Input referred maximum gain

12.0

11.4

12.6

dB (min)

dB (max)

Digital Volume Range

(Phone_In_HS)

Input referred minimum gain

-40.5

-41.1

-39.9

dB (min)

dB (max)

Input referred maximum gain

6.0

5.4

6.6

dB (min)

dB (max)

Digital Volume Stepsize

1.5

Digital Volume Stepsize Error

±0.1

±0.6

dB ( max)

Phone_In_IHF Volume

BTL gain from Phone_In _IHF to

SPKR

OUT

11.4

12.6

dB (min)

dB (max)

Phone_In_IHF Mute Attenuation

Output Mode 2, 4, 6

100

Phone_In_IHF Input Impedance

Ω (min)

Ω (max)

Phone_In_HS Input Impedance

Maximum gain setting

33.5

Ω (min)

Ω (max)

Mininum gain setting

100

125

Ω (min)

Ω (max)

IN and LIN Input Impedance

Maximum gain setting

Ω (min)

Ω (max)

Mininum gain setting

100

125

Ω (min)

Ω (max)

Thermal Shutdown Temperature

170

150

˚C (min)

SCL (Clock) Period

2.5

µs (min)

SDA to SCL Set-up Time

100

ns (min)

Data Out Stable Time

ns (min)

Start Condition Time

100

ns (min)

Stop Condition Time

100

ns (min)

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