LM4925MM datasheet(5/15 Pages) NSC

5 / 15 page

Electrical Characteristics V

DD = 1.8V (Notes 1, 5)

The following specifications apply for the circuit shown in Figure 2 for Single Ended Outputs (A

V = 2.5V) and Figure 3

for BTL Outputs (A

V-BTL = 2), unless otherwise specified. Limits apply for TA = 25˚C.

Symbol

Parameter

Conditions

LM4925

Units

(Limits)

Typical

Limit

(Note 6)

(Note 7)

Quiescent Power Supply Current

IN = 0V, IO = 0A, RL = ∞ (Note 8)

0.9

1.6

mA (max)

Shutdown Current

SHUTDOWN = GND

0.05

µA (max)

Output Offset Voltage

mV (max)

Output Power (Note 9)

L =8

Ω, BTL, Fig. 3,

THD+N = 1%, f = 1kHz

120

mW (min)

L =16

Ω, Fig. 2, SE per Channel,

THD+N = 1%, f = 1kHz

mW (min)

THD+N

Total Harmonic Distortion + Noise

L =8

Ω, BTL, P

O = 50mW,

Fig. 3, f = 1kHz

0.15

0.5

% (max)

L =16

Ω, SE, P

O = 5mW per channel,

Fig.2, f = 1kHz

0.1

Output Voltage Noise

20Hz to 20kHz, A-weighted,

Input Referred,

Single Ended Output, Fig. 2

µV

RMS

Crosstalk

L =16

Ω, Fig. 2

PSRR

Power Supply Rejection Ratio

RIPPLE = 200mVP-P sine wave

BYPASS = 4.7µF, RL =8

Ω

f = 100Hz, BTL, Fig. 3

RIPPLE = 200mVP-P sine wave

BYPASS = 4.7µF, RL =16

Ω

f = 100Hz, SE, Fig. 2

Control Logic High

1.5V

≤ V

≤ 3.6V

0.7V

V (min)

Control Logic Low

1.5V

≤ V

≤ 3.6V

0.3V

V (max)

Mute

Attenuation

PP Reference,

i = 20k, Rf = 50k

dB (min)

Note 1: Absolute Maximum Ratings indicate limits beyond which damage to the device may occur. Operating Ratings indicate conditions for which the device is

functional, but do not guarantee specific performance limits. Electrical Characteristics state DC and AC electrical specifications under particular test conditions which

guarantee specific performance limits. This assumes that the device is within the Operating Ratings. Specifications are not guaranteed for parameters where no limit

is given, however, the typical value is a good indication of device performance.

Note 2: The maximum power dissipation is dictated by TJMAX, θJA, and the ambient temperature TA and must be derated at elevated temperatures. The maximum

allowable power dissipation is PDMAX =(TJMAX −TA)/θJA. For the LM4925, TJMAX = 150˚C. For the θJAs, please see the Application Information section or the

Absolute Maximum Ratings section.

Note 3: Human body model, 100pF discharged through a 1.5k

Ω resistor.

Note 4: Machine model, 220pF–240pF discharged through all pins.

Note 5: All voltages are measured with respect to the ground (GND) pins unless otherwise specified.

Note 6: Typicals are measured at 25˚C and represent the parametric norm.

Note 7: Datasheet min/max specification limits are guaranteed by design, test, or statistical analysis.

Note 8: The quiescent power supply current depends on the offset voltage when a practical load is connected to the amplifier.

Note 9: Output power is measured at the device terminals.

LM4925MM bảng dữ liệu(PDF) 5 Page - National Semiconductor (TI)

LM4925MM bảng dữ liệu(HTML) 5 Page - National Semiconductor (TI)

Html Pages

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15

bảng dữ liệu tải về

Link URL