TDA8559 Datasheet, PDF (2/32 Pages) NXP Semiconductors – Low-voltage stereo headphone amplifier

Philips Semiconductors
Low-voltage stereo headphone amplifier
Product specification
TDA8559
FEATURES
• Operating voltage from 1.9 to 30 V
• Very low quiescent current
• Low distortion
• Few external components
• Differential inputs
• Usable as a mono amplifier in Bridge-Tied Load (BTL) or
stereo Single-Ended (SE)
• Single-ended mode without loudspeaker capacitor
• Mute and standby mode
• Short-circuit proof to ground, to supply voltage (<10 V)
and across load
• No switch on or switch off clicks
• ESD protected on all pins.
APPLICATIONS
• Portable telephones
• Walk-mans
• Portable audio
• Mains fed equipment.
GENERAL DESCRIPTION
The TDA8559 is a stereo amplifier that operates over a
wide supply voltage range from 1.9 to 30 V and consumes
a very low quiescent current. This makes it suitable for
battery fed applications (2 × 1.5 V cells). Because of an
internal voltage buffer, this device can be used with or
without a capacitor connected in series with the load. It can
be applied as a headphone amplifier, but also as a mono
amplifier with a small speaker (25 Ω), or as a line driver in
mains applications.
QUICK REFERENCE DATA
SYMBOL
PARAMETER
Supplies
V_P
I_q(tot)
I_stb
operating supply voltage
total quiescent current
standby supply current
Stereo application
P_o
THD
output power
total harmonic distortion
G_v
voltage gain
f_ss
small signal roll-off frequency
BTL application
P_o
THD
output power
total harmonic distortion
G_v
voltage gain
CONDITIONS
THD = 10%
P_o = 20 mW; f_i = 1 kHz
P_o = 20 mW; f_i = 10 kHz
−1 dB
THD = 10%
P_o = 70 mW; f_i = 1 kHz
P_o = 70 mW; f_i = 10 kHz
MIN. TYP. MAX. UNIT
1.9
3
30
V
−
2.75 4
mA
−
−
10
µA
30
35
−
mW
−
0.075 0.15 %
−
0.1
−
%
25
26
27
dB
−
750
−
kHz
125
140
−
mW
−
0.05 0.1
%
−
0.2
−
%
31
32
33
dB
ORDERING INFORMATION
TYPE
NUMBER
TDA8559
TDA8559T
NAME
DIP16
SO16
PACKAGE
DESCRIPTION
plastic dual in-line package; 16 leads (300 mil); long body
plastic small outline package; 16 leads; body width 3.9 mm
VERSION
SOT38-1
SOT109-1
1997 Jun 27
2