Datasheet

LM4953, LM4953SDBD
SNAS299E –SEPTEMBER 2005–REVISED FEBRUARY 2006 www.ti.com
Electrical Characteristics V
DD
= 3.6V
The following specifications apply for V
DD
= 3.6V, A
V-BTL
= 6dB, Z
L
= 2μF+30Ω unless otherwise specified. Limits apply to T
A
=
25°C. See Figure 1.
Symbol Parameter Conditions LM4953 Units (Limits)
Typ
(1)
Limit
(2)(3)
Quiescent Power Supply
I
DD
V
IN
= 0, R
LOAD
= 2μF+30Ω 8 mA (max)
Current
Quiescent Power Supply
I
standby
V
IN
= 0, Z
LOAD
= 2μF+30Ω 2.7 mA
Current Auto Standby Mode
I
SD
Shutdown Current V
SD
= GND 0.1 1 µA (max)
SD1 V (min)
V
SDIH
Shutdown Voltage Input High 0.7*CPVdd
SD2
SD1 V (max)
V
SDIL
Shutdown Voltage Input Low 0.3*CPVdd
SD2
T
WU
Wake-up Time 125 μsec
V
OS
Output Offset Voltage 1 10 mV (max)
THD = 1% (max); f = 1kHz
V
OUT
Output Voltage Swing 12.6 Vpp
R
L
= 2μF+30Ω, Mono BTL
Total Harmonic Distortion +
THD+N V
OUT
= 6Vp-p, f
IN
= 1kHz 0.02 %
Noise
∈
OS
Output Noise A-Weighted Filter, V
IN
= 0V 15 μV
V
RIPPLE
= 200mVp-p, f = 217Hz,
67 dB
Input Referred
PSRR Power Supply Rejection Ratio
V
RIPPLE
= 200mVp-p, f = 1kHz,
65 dB
Input Referred
SNR Signal-to-Noise Ratio Z
L
= 2μF+30Ω, V
OUT
= 6Vp-p 105 dB
(1) Typicals are measured at 25°C and represent the parametric norm.
(2) Limits are specified to Texas Instruments' AOQL (Average Outgoing Quality Level).
(3) Datasheet min/max specification limits are specified by design, test, or statistical analysis.
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