DRV602 Datasheet, PDF (4/12 Pages) Texas Instruments – DIRECTPATH™, 2Vrms Line Driver with Adjustable gain

DRV602
SLOS572 – DECEMBER 2008 ........................................................................................................................................................................................... www.ti.com
OPERATING CHARACTERISTICS
V_DD = 3.3 V , T_A = 25°C, R_L = 2.5kΩ, C_(PUMP) = C_(PVSS) = 1 µF , C_IN = 1 µF, R_IN = 33 kΩ, R_fb = 68kΩ (unless otherwise noted)
PARAMETER
TEST CONDITIONS
MIN TYP MAX UNIT
V_O
THD+N
I_O
R_IN
R_fb
Output Voltage (Outputs In Phase)
Total harmonic distortion plus noise
Crosstalk
Output current limit
Input resistor range
Feedback resistor range
Slew rate
THD = 1%, V_DD = 3.3 V, f = 1 kHz
V_O = 2 Vrms, f = 1 kHz
V_O = 2 Vrms, f = 6.8 kHz
V_O = 2 Vrms, f = 1 kHz
V_DD = 3.3 V
2.05
0.01%
0.05%
–80
20
1
10
4.7
20
4.5
Vrms
dB
mA
47 kΩ
100 kΩ
V/µs
Maximum capacitive load
220
pF
V_N
SNR
Noise output voltage
Signal to noise ratio
A-weighted, BW 20Hz–22kHz
V_O = 2 Vrms, THD+N = 0.1%, 22 kHz BW,
A-weighted
15
µVrms
102
dB
G_BW
A_VO
Fcp
Unity Gain Bandwidth
Open-loop voltage gain
Charge Pump frequency
8
MHz
150
dB
225
450 675 kHz
+
LEFT C3 ^R1
INPUT
-
C3 ^R1
R3
C1
R3
R2
APPLICATION CIRCUIT
LEFT
OUTPUT
R2
C2
C2
3.3V
supply
1mF
1mF
R2
C2
+
RIGHT C3 ^R1
INPUT
-
C3 ^R1
R3
C1
R3
R2
1mF
C2
RIGHT
OUTPUT
ENABLE
R1 = 33kΩ, R2 = 68kΩ, R3 = 100kΩ, C1 = 150pF, C2 = 15pF, C3 = 1 µF
Differential input, single ended output, 2nd order filter. 40kHz –3dB frequency, Gain 2.06.
4
Copyright © 2008, Texas Instruments Incorporated
Product Folder Link(s): DRV602