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TPA6139A2RGTT Datasheet(PDF) 6 Page - Texas Instruments

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No. de pieza TPA6139A2RGTT
Descripción Electrónicos  25mW Headphone Amplifier
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Fabricante Electrónico  TI1 [Texas Instruments]
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TPA6139A2RGTT Datasheet(HTML) 6 Page - Texas Instruments

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TPA6139A2
SLOS700C – JANUARY 2011 – REVISED APRIL 2016
www.ti.com
Product Folder Links: TPA6139A2
Submit Documentation Feedback
Copyright © 2011–2016, Texas Instruments Incorporated
(1)
If pin 12, GAIN, is left floating an internal pullup sets the gain to –2x.
Gain setting is latched during power up.
7.6 Programmable Gain Settings
VDD = 3.3 V, Rload = 32 kΩ, TA = 25°C, Charge pump:= CCP 1 µF, CIN = 1 µF, 1x gain select (unless otherwise noted)
(1)
PARAMETER
TEST CONDITIONS
MIN
TYP
MAX
UNIT
R_Tol
Gain programming resistor
tolerance
2%
ΔAV
Gain matching
Between left and right channels
0.25
dB
Gain step tolerance
0.1
dB
Gain steps
Gain resistor 2% tolerance
249k or higher
–2
V/V
82k0
–1
49k2
–1.5
35k1
–2.3
27k3
–2.5
20k5
–3
15k4
–3.5
11k5
–4
9k09
–5
7k50
–5.6
6k19
–6.4
5k11
–8.3
3k90
–10
Input impedance
Gain resistor 2% tolerance
249k or higher
37
k
Ω
82k0
55
49k2
44
35k1
33
27k3
31
20k5
28
15k4
24
11k5
22
9k09
18
7k50
17
6k19
15
5k11
12
3k90
10


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