tda8552t NXP Semiconductors, tda8552t Datasheet - Page 10

• Manufacturer Part Number: tda8552t
• Description: 2 X 1.4 W Btl Audio Amplifiers With Digital Volume Control And Headphone Sensing
• Manufacturer: NXP Semiconductors

Philips Semiconductors
Notes
1. With a load connected at the outputs the quiescent current will increase, the maximum of this increase being equal
2. The DC output voltage with respect to ground is approximately 0.5V
3. Output voltage in mute position is measured with an input of 1 V (RMS) in a bandwidth of 20 kHz, so including noise,
2002 Jan 04
Volume control
t
t
V
V
V
V
I
t
t
Volume attenuator
G
G
N
Z
V
W
rep
I(up/down)
wait
rep
G
i
th(up)
float(max)
float(min)
th(down)
i(max)(rms)
step
2 x 1.4 W BTL audio amplifiers with digital
volume control and headphone sensing
v(l)
v(h)
v
to
gain select pin is LOW (0 V).
SYMBOL
2
DC output offset voltage
--------------------------------------------------------------- -
pulse width
pulse repetition time
UP/DOWN pin UP threshold
level
UP/DOWN pin floating high
level
UP/DOWN pin floating low
level
UP/DOWN pin DOWN
threshold level
input current UP/DOWN pin
auto repeat wait time
repeat time
low gain; maximum volume
(including power amplifier)
low gain; minimum volume
(including power amplifier)
high gain; maximum volume
(including power amplifier)
high gain; minimum volume
(including power amplifier)
number of gain steps
variation of gain per step
input impedance
maximum input voltage
(RMS value)
R
L
PARAMETER
0 < V
key pressed
UP/DOWN
CONDITIONS
10
< V
DD
DD
.
50
100
4.1
1.0
0
19
tbf
29
tbf
14
TDA8552T; TDA8552TS
MIN.
500
130
20
30
64
1.25
20
60
50
TYP.
Product specification
V
3.4
0.6
200
21
tbf
31
tbf
1.75
DD
MAX.
ns
ns
V
V
V
V
ms
ms
dB
dB
dB
dB
dB
k
V
UNIT
A