NXP Semiconductors
TDA1308; TDA1308A
Class-AB stereo headphone driver
12. Test information
V
DD
3.9 kΩ
100
µF
V
OUTA
RL
1
3.9 kΩ
8
V
INA
2
3
V
ref
(typ. 2.5 V)
3.9 kΩ
TDA1308(A)
5
6
7
4
C6
100
µF
V
INB
3.9 kΩ
100
µF
V
OUTB
RL
mka782
Fig 6. Measurement circuit for inverting application
mka784
−70
G
v
(dB)
−90
mka785
80
G
v
(dB)
R
L
= 32
Ω
no load
40
R
L
= 16
Ω
−110
32
Ω
0
−130
10
−1
5 kΩ
10
−2
10
−3
10
−4
10
−5
10
−6
10
−7
10
−8
f
i
(Hz)
10
−2
10
−3
10
−4
f
i
(Hz)
10
−5
Fig 7. Open-loop gain as a function of input frequency
Fig 8. Crosstalk as a function of input frequency
TDA1308_A_4
© NXP B.V. 2007. All rights reserved.
Product data sheet
Rev. 04 — 25 January 2007
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