TDA7056AT_15 Datasheet, PDF (2/18 Pages) NXP Semiconductors – 3 W mono BTL audio amplifier with DC volume control

NXP Semiconductors
3 W mono BTL audio amplifier with DC
volume control
Product specification
TDA7056AT
FEATURES
• DC volume control
• Few external components
• Mute mode
• Thermal protection
• Short-circuit proof
• No switch-on or switch-off clicks
• Good overall stability
• Low power consumption
• Low HF radiation
• ESD protected on all pins.
GENERAL DESCRIPTION
The TDA7056AT is a mono Bridge-Tied Load (BTL) output
amplifier with DC volume control. It is designed for use in
TVs and monitors, but is also suitable for battery-fed
portable recorders and radios. The device is contained in
a 20-lead small outline package.
A Missing Current Limiter (MCL) is built in. The MCL circuit
is activated when the difference in current between the
output terminal of each amplifier exceeds 100 mA
(300 mA typ.). This level of 100 mA allows for
Single-Ended (SE) headphone applications.
QUICK REFERENCE DATA
SYMBOL
V_P
P_o
G_v(max)
ΔG_v
I_q(tot)
THD
PARAMETER
supply voltage
output power
maximum total voltage gain
voltage gain control range
total quiescent current
total harmonic distortion
CONDITIONS
V_P = 12 V; R_L = 16 Ω
V_P = 12 V; R_L = 16 Ω
V_P = 12 V; R_L = ∞
P_o = 0.5 W
MIN.
4.5
3
34.5
75
−
−
TYP.
−
3.5
35.5
80
8
0.3
MAX.
18
−
36.5
−
16
1
UNIT
V
W
dB
dB
mA
%
ORDERING INFORMATION
TYPE
NUMBER
TDA7056AT
NAME
SO20
PACKAGE
DESCRIPTION
plastic small outline package with 20 leads; body width 7.5 mm
VERSION
SOT163-1
1998 Feb 23
2