參數(shù)資料
型號： TDF8554J/N4
廠商： NXP SEMICONDUCTORS
元件分類： 音頻／視頻放大
英文描述： 44 W, 4 CHANNEL, AUDIO AMPLIFIER, PZFM37
封裝： PLASTIC, SOT725-1, 37 PIN
文件頁數(shù)： 29/56頁
文件大?。?/td> 597K
代理商： TDF8554J/N4
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
35 of 56
NXP Semiconductors
TDF8554J
4
45 W power amplifier with multiple voltage regulator
td(mute_off)
mute off delay time
time from amplifier start until 10 % of
output signal; ILO = 0 A;
ILO =5 A +15 ms; no DC-load
(IB1[D1] = 0); see Figure 3
430
650
ms
tamp_on
amplifier on time
time from amplifier start until 90 % of
output signal; ILO =0 A;
ILO =5 A +30 ms; no DC-load
(IB1[D1] = 0); see Figure 3
550
800
ms
toff
amplifier switch-off time
time to DC output voltage < 0.1 V;
ILO =0 A; ILO =5 A +0 ms;
[2] 250
500
750
ms
td(mute-on)
delay time from mute to on
from 10 % to 90 % of output signal;
Vi = 50 mV; IB2[D1] = 1 to 0
515
40
ms
td(soft_mute)
soft mute delay time
from 90 % to 10 % of output signal;
Vi = 50 mV; IB2[D1] = 0 to 1
515
40
ms
td(fast_mute)
fast mute delay time
from 90 % to 10 % of output signal;
Vi =50 mV; VSTB from > 2.5 V to < 0.8 V
in 1
s; IB2[D0] = 0 to 1
-0.4
1
ms
t(start-Vo(off))
engine start to output off
time
VP from 14.4 V to 5 V in 1.5 ms;
Vo < 0.5 V; see Figure 4
-0.1
1
ms
t(start-SVRoff)
engine start to SVR off time
VP from 14.4 V to 5 V in 1.5 ms;
VSVR <0.7 V; see Figure 4
-40
75
ms
I2C-bus interface [3]
VIL
LOW-level input voltage
on pins SCL and SDA
-
1.5
V
VIH
HIGH-level input voltage
on pins SCL and SDA
2.3
-
5.5
V
VOL
LOW-level output voltage
on pin SDA; IL =5mA
-
0.4
V
fSCL
SCL clock frequency
-
400
-
kHz
Start-up diagnostics
tsudiag
start-up diagnostic time
from start-up diagnostic command via
I2C-bus until completion of start-up
diagnostic; Vo + < 0.1 V; Vo < 0.1 V (no
load) IB1[D1] = 1; see Figure 10
50
130
250
ms
td(sudiag-on)
start-up diagnostic to on
delay time
at 90 % of output signal; IB1[D0:D1] = 11;
-
680
-
ms
Voffset
offset voltage
startup diagnostic offset voltage under no
load condition
1.3
2
2.5
V
RLdet(sudiag)
start-up diagnostic load
detection resistance
shorted load
high gain; IB3[D6:D5] = 00
-
0.5
low gain; IB3[D6:D5] = 11
-
1.5
normal load
high gain (IB3[D6:D5] = 00)
1.5
-
20
low gain (IB3[D6:D5] = 11)
3.2
-
20
line driver load
80
-
200
open load
400
-
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
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