DRV612_16 Datasheet, PDF (6/22 Pages) Texas Instruments – 2-Vrms DirectPath Line Driver With Programmable-Fixed Gain

DRV612
SLOS690B – DECEMBER 2010 – REVISED APRIL 2011
PROGRAMMABLE GAIN SETTINGS⁽¹⁾⁽²⁾
VDD = 3.3 V, R_load = 10 kΩ, T_A = 25°C, Charge pump: C_CP = 1 μF, 1× gain select, unless otherwise noted
PARAMETER
TEST CONDITIONS
MIN
TYP
R_Tol
Gain programming resistor tolerance
ΔA_V
Gain matching
Between left and right channels
0.25
Gain step tolerance
0.1
Gain resistor 2% tolerance
A
249k or higher
–2
82k5
–1
51k1
–1.5
34k8
–2.3
27k4
–2.5
Gain steps
20k5
15k4
–3
–3.5
11k5
–4
9k09
–5
7k50
–5.6
6k19
–6.4
5k11
–8.3
4k22
–10
Gain resistor 2% tolerance
A
249k or higher
37
82k5
55
51k1
44
34k8
33
27k4
31
Input impedance
20k5
15k4
28
24
11k5
22
9k09
18
7k50
17
6k19
15
5k11
12
4k22
10
(1) If the GAIN pin is left floating, an internal pullup sets the gain to –2×.
(2) Gain setting is latched during power up.
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MAX
2%
UNIT
dB
dB
V/V
kΩ
6
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