參數(shù)資料
型號: TDA8551T-T
廠商: NXP SEMICONDUCTORS
元件分類: 音頻控制
英文描述: 1 CHANNEL(S), VOLUME CONTROL CIRCUIT, PDSO8
封裝: 3.90 MM, PLASTIC, MS-012, SOT96-1, SOP-8
文件頁數(shù): 15/18頁
文件大?。?/td> 160K
代理商: TDA8551T-T
1998 Feb 23
6
NXP Semiconductors
Product specification
1 W BTL audio amplifier with digital volume
control
TDA8551
CHARACTERISTICS
VP =5V; Tamb =25 °C; RL =8 Ω; VMODE = 0 V; total gain setting at +7 dB (unless otherwise specified); measured in
test circuit of Fig.4.
SYMBOL
PARAMETER
CONDITIONS
MIN.
TYP.
MAX.
UNIT
DC characteristics
VP
supply voltage
2.7
5
5.5
V
Iq
quiescent current
RL = ∞; note 1
610
mA
Istb
standby current
VMODE =VP
10
μA
VO
DC output voltage
note 2
2.5
V
OUT+ VOUT
differential output offset
50
mV
Mode select pin
VMODE
input voltage
standby mode
VP 0.5
VP
V
mute mode
1
VP 1.4
V
operating mode
0
0.5
V
IMODE
input current
0 < VMODE <VP
100
nA
α
mute attenuation
note 3
80
90
dB
Volume control
trep
pulse repetition time
100
ns
Vth(UP)
UP/DOWN pin up threshold level
4.2
VP
V
Vfloat(max)
UP/DOWN pin floating high level
3.4
V
Vfloat(min)
UP/DOWN pin floating low level
1.0
V
Vth(DOWN)
UP/DOWN pin down threshold level
0
0.6
V
IUP/DOWN
input current UP/DOWN pin
0 < VUP/DOWN <VP
200
μA
Gv(max)
maximum voltage gain (including
power amplifier)
19
20
21
dB
Gv(min)
minimum voltage gain (including
power amplifier)
62
60
58
dB
nvol
number of volume steps
64
ΔG
v
voltage gain variation per step
1.25
dB
Zi
input impedance
14
20
k
Ω
Vi(rms)(max)
maximum input voltage (RMS value)
2.0
V
AC characteristics (f = 1 kHz)
Po
output power
THD = 10%
1
1.4
W
THD = 0.5%
0.6
1.0
W
THD
total harmonic distortion
Po = 0.5 W; note 4
0.15
0.5
%
Vn(o)
noise output voltage
note 5
60
100
μV
SVRR
supply voltage ripple rejection
note 6
48
53
dB
Vi(IN)(max)
maximum input voltage on pin IN
THD = 1%;
Gv = 50 dB
to0dB
2.0
V
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