Datasheet

DRV632
www.ti.com SLOS681A –JANUARY 2011–REVISED JULY 2013
RECOMMENDED OPERATING CONDITIONS
MIN NOM MAX UNIT
VDD Supply voltage DC supply voltage 3 3.3 3.6 V
R
L
Load impedance 0.6 10 kΩ
V
IL
Low-level input voltage Mute 40 % of VDD
V
IH
High-level input voltage Mute 60 % of VDD
T
A
Operating free-air temperature –40 25 85 °C
ELECTRICAL CHARACTERISTICS
T
A
= 25°C (unless otherwise noted)
PARAMETER TEST CONDITIONS MIN TYP MAX UNIT
|V
OS
| Output offset voltage VDD = 3.3 V 0.5 1 mV
PSRR Power-supply rejection ratio 80 dB
V
OH
High-level output voltage VDD = 3.3 V 3.1 V
V
OL
Low-level output voltage VDD = 3.3 V –3.05 V
V
UVP_
External UVP detect voltage 1.25 V
EX
V
UVP_
External UVP detect hysteresis current 5 µA
EX_HYS
TERESI
S
f
CP
Charge pump switching frequency 200 300 400 kHz
|I
IH
| High-level input current, Mute VDD = 3.3 V, V
IH
= VDD 1 µA
|I
IL
| Low-level input current, Mute VDD = 3.3 V, V
IL
= 0 V 1 µA
VDD = 3.3 V, no load, Mute = VDD 5 14 25
I
DD
Supply current mA
VDD = 3.3 V, no load, Mute = GND, disabled 14
OPERATING CHARACTERISTICS
VDD = 3.3 V, R
DL
= 10 kΩ, R
FB
= 30 kΩ, R
IN
= 15 kΩ, T
A
= 25° C, Charge pump: C
P
= 1 µF (unless otherwise noted)
PARAMETER TEST CONDITIONS MIN TYP MAX UNIT
V
O
Output voltage, outputs in phase THD+N = 1%, VDD = 3.3 V, f = 1 kHz, R
L
= 10 kΩ 2 2.4 V
rms
THD+N Total harmonic distortion plus noise V
O
= 2 V
RMS
, f = 1 kHz 0.002%
SNR Signal-to-noise ratio
(1)
A-weighted 105 dB
DNR Dynamic range A-weighted 105 dB
V
N
Noise voltage A-weighted 11 μV
Z
O
Output Impedance when muted Mute = GND 110 mΩ
Input-to-output attenuation when Mute = GND 80 dB
muted
Crosstalk—L to R, R to L V
O
= 1 V
rms
–110 dB
I
LIMIT
Current limit 25 mA
(1) SNR is calculated relative to 2-Vrms output.
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