DRV632 Datasheet, PDF (3/18 Pages) Texas Instruments – DirectPath™, 2-VRMS Audio Line Driver With Adjustable Gain

DRV632
www.ti.com
RECOMMENDED OPERATING CONDITIONS
VDD
R_L
V_IL
V_IH
T_A
Supply voltage
Load impedance
Low-level input voltage
High-level input voltage
Operating free-air temperature
DC supply voltage
Mute
Mute
SLOS681 – JANUARY 2011
MIN NOM MAX UNIT
3 3.3 3.6
V
0.6
10
kΩ
40
% of VDD
60
% of VDD
–40
25
85
°C
ELECTRICAL CHARACTERISTICS
T_A = 25°C (unless otherwise noted)
PARAMETER
|V_OS| Output offset voltage
PSRR Power-supply rejection ratio
V_OH
V_OL
V_{UVP_}
EX
V_{UVP_}
EX_HYS
TERESI
S
f_CP
|I_IH|
|I_IL|
High-level output voltage
Low-level output voltage
External UVP detect voltage
External UVP detect hysteresis current
Charge pump switching frequency
High-level input current, Mute
Low-level input current, Mute
I_DD
Supply current
TEST CONDITIONS
VDD = 3.3 V
VDD = 3.3 V
VDD = 3.3 V
VDD = 3.3 V, V_IH = VDD
VDD = 3.3 V, V_IL = 0 V
VDD = 3.3 V, no load, Mute = VDD
VDD = 3.3 V, no load, Mute = GND, disabled
MIN TYP
0.5
80
3.1
1.25
MAX
1
–3.05
UNIT
mV
dB
V
V
V
5
µA
200 300
5 14
14
400 kHz
1 µA
1 µA
25
mA
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
V_O
THD+N
SNR
Output voltage, outputs in phase
Total harmonic distortion plus noise
Signal-to-noise ratio⁽¹⁾
THD+N = 1%, VDD = 3.3 V, f = 1 kHz, R_L = 10 kΩ
V_O = 2 V_RMS, f = 1 kHz
A-weighted
2
2.4
0.002%
90
105
DNR
Dynamic range
A-weighted
90
105
V_N
Noise voltage
A-weighted
11
Z_O
Output Impedance when muted
Mute = GND
110
Input-to-output attenuation when Mute = GND
80
muted
I_LIMIT
Crosstalk—L to R, R to L
Current limit
V_O = 1 V_rms
–110
25
(1) SNR is calculated relative to 2-Vrms output.
UNIT
V_rms
dB
dB
mV
mΩ
dB
dB
mA
Copyright © 2011, Texas Instruments Incorporated
Product Folder Link(s): DRV632
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