LM48822TLEVAL datasheet(5/25 Pages) TI1

5 / 25 page

LM48822, LM48822TLEVAL

www.ti.com

SNAS456B – MAY 2008 – REVISED MARCH 2011

Electrical Characteristics VDD = 3.6V

(1) (2)

The following specifications apply for AV = 0dB, RL = 16Ω, f = 1kHz, unless otherwise specified. Limits apply to TA = 25°C.

LM48822

Units

Symbol

Parameter

Conditions

Typical

Limit

(Limits)

(3)

(4)

VIN = 0V, both channels active

IDD

Quiescent Power Supply Current

RL = 16Ω

3.5

4.5

mA (max)

RL = ∞

3.5

4.5

mA (max)

ISD

Shutdown Current

Shutdown Enabled

0.06

1.2

µA (max)

VOS

Differential Output Offset Voltage

VIN = 0V, RL = 16Ω

mV (max)

TWU

Wake Up Time

200

μs

+0.5

dB (max)

Minimum Gain Setting

–59.5

–0.5

dB (min)

Voltage Gain

+0.5

dB (max)

Maximum Gain Setting

3.8

–0.5

dB (min)

AV = 4dB

Ω (max)

RIN

Input Resistance

AV = –60dB

Ω (max)

RL= 16Ω, f = 1kHz, THD+N = 1%

Single channel

Two channels in phase

mW (min)

Output Power

RL= 32Ω, f = 1kHz, THD+N = 1%

Single channel

Two channels in phase

PO = 50mW, f = 1kHz, RL = 16Ω

0.04

single channel

THD+N

Total Harmonic Distortion + Noise

PO = 40mW, f = 1kHz, RL = 32Ω

0.02

single channel

VRIPPLE = 200mVP-P, Inputs AC GND

PSRR

Power Supply Rejection Ratio

CIN = 1μF, input referred, SD_BIAS = 0

fRIPPLE = 217Hz

110

100

dB (min)

fRIPPLE = 1kHz

100

CMRR

Common Mode Rejection Ratio

VRIPPLE = 1VP-P

RL ≥ 16Ω, POUT = 1.6mW, f = 1kHz

dB (min)

XTALK

Crosstalk

RL ≥ 10kΩ, VOUT = 1VRMS, f = 1kHz

dB (min)

SNR

Signal-to-Noise Ratio

RL = 16Ω, f = 1kHz

100

AV = 4dB, Input referred

∈OS

Output Noise

μV

A-Weighted Filter

ROUT

Output Impedance

Charge pump-only mode enabled

Ω (min)

Voltage applied to amplifier outputs in

VOUT

Maximum Voltage Swing

VRMS (min)

charge pump-only mode

(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

RatingsRatings or other conditions beyond those indicated in the Recommended Operating Conditions is not implied. The

Recommended Operating Conditions 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 guaranteed specifications under the listed Recommended Operating Conditions except as

otherwise modified or specified by the Electrical Characteristics Conditions and/or Notes. Typical specifications are estimations only and

are not guaranteed.

(3)

Typical values represent most likely parametric norms at TA = +25ºC, and at the Recommended Operation Conditions at the time of

product characterization and are not guaranteed.

(4)

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

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