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| 型号： | TDF8554J/N4 |
| 厂商： | NXP SEMICONDUCTORS |
| 元件分类： | 音频／视频放大 |
| 英文描述： | 44 W, 4 CHANNEL, AUDIO AMPLIFIER, PZFM37 |
| 封装： | PLASTIC, SOT725-1, 37 PIN |
| 文件页数： | 31/56页 |
| 文件大小： | 597K |
| 代理商： | TDF8554J/N4 |
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TDF8554J
All information provided in this document is subject to legal disclaimers.
NXP B.V. 2011. All rights reserved.
Product data sheet
Rev. 1 — 31 August 2011
37 of 56
NXP Semiconductors
TDF8554J
4
45 W power amplifier with multiple voltage regulator
[1]
VSTB depends on the current into pin STB: minimum = (1429 ISTB) + 5.4 V, maximum = (3143 ISTB)+5.6 V.
[2]
The times are specified without leakage current. For a leakage current of 5
A on pin SVR, the delta time is specified. If the capacitor
value on pin SVR changes
30 %, the specified time will also change 30 %. The specified times include an ESR of 15 for the
capacitor on pin SVR.
[3]
Standard I2C-bus specification: maximum LOW-level = 0.3VDD, minimum HIGH-level = 0.7VDD. To comply with 5 V and 3.3 V logic the
maximum LOW-level is defined by VDD = 5 V and the minimum HIGH-level by VDD =3.3 V.
[4]
For optimum channel separation (
cs), supply voltage ripple rejection (SVRR) and common mode rejection ratio (CMRR), a resistor
must be in series with the ACGND capacitor.
[5]
The plop noise during amplifier switch-on and switch-off is measured using an ITU-R 2K filter; see Figure 20.
SVRR
supply voltage ripple
rejection
fi = 100 Hz to 10 kHz; VP = 10.5 V;
RS =1k; RACGND = 250
[4] 55
70
-
dB
CMRR
common mode rejection
ratio
amplifier mode; Vcm = 0.3 V (p-p);
fi = 1 kHz to 3 kHz; RS =1 k;
RACGND = 250
common mode input to differential
output (VO(dif) /VI(cm) + 26 dB)
55
65
-
dB
common mode input to common mode
output (VO(cm) / VI(cm) + 26 dB)
50
58
-
dB
V
O
output voltage variation
plop during switch-on and switch-off
from off to mute and mute to off
-
7.5
mV
from mute to on and on to mute (soft
mute)
--
7.5
mV
from off to on and on to off; start-up
diagnostic enabled
--
7.5
mV
Vn(o)
output noise voltage
filter 20 Hz to 22 kHz (6th order)
mute mode; RS = 1 k
-15
23
V
line driver mode; RS = 1 k
-25
33
V
line driver mode; RS =50
-25
33
V
amplifier mode; RS = 1 k
-43
65
V
amplifier mode; RS =50
-40
60
V
Gv(amp)
voltage gain amplifier mode
single-ended in to differential out
25.5
26
26.5
dB
Gv(ld)
voltage gain line driver
mode
single-ended in to differential out
15.5
16
16.5
dB
Zi
input impedance
Tamb = 40 C to +105 C38
62
99
k
Tamb = 0 C to 105 C55
62
99
k
mute
mute attenuation
Vo(on) /Vo(mute); Vi =50 mV
80
92
-
dB
Vo(mute)(RMS)
RMS mute output voltage
Vi = 1 V RMS; filter 20 Hz to 22 kHz
-
16
29
V
Bp
power bandwidth
1 dB
-
20 to
20000
-Hz
CL(crit)
critical load capacitance
no oscillation; open load and 2
load, all
outputs to GND or across the load
33
-
nF
Table 25.
Amplifier characteristics …continued
Refer to test circuit (see Figure 30) at Tamb =25 C; VP = 14.4 V; unless otherwise specified. Tested at Tamb =25 C;
guaranteed for Tj = 40 C to +150 C; functionality guaranteed for VP < 10 V unless otherwise specified.
Symbol
Parameter
Conditions
Min
Typ
Max
Unit
R
ACGND
R
S
4
------
=
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