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)： 21/56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
28 of 56
NXP Semiconductors
TDF8554J
4
45 W power amplifier with multiple voltage regulator
2
D2
enable or disable channel 3 (LF)
0 = enable channel 3
1 = disable channel 3
1
D1
enable or disable channel 2 (RR)
0 = enable channel 2
1 = disable channel 2
0
D0
enable or disable channel 4 (LR)
0 = enable channel 4
1 = disable channel 4
Table 15.
Instruction byte IB4 bit description
Bit
Symbol
Description
7
D7
clip detection level
0 = detection level set by IB3[D7]
1 = 10 % detection level
6
D6
undervoltage protection level
0 = undervoltage protection level at 7.2 V
1 = undervoltage protection level at 5.5 V (stop/start)
5
D5
AC-load detection measuring current
0 = at high measuring current
1 = at low measuring current
4
D4
low gain mode/line driver mode
0 = low gain (16 dB) with 0.5VP DC output voltage
1 = line driver with 16 dB gain and 0.25VP DC output voltage
3
D3
pin DIAG when supply voltage is above 16 V
0 = disable pin DIAG
1 = enable pin DIAG
2
D2
clip information on pin DIAG
0 = enable
1 = disable
1
D1
block clip diagnostics
0 = below VP =10 V
1 = below undervoltage level set by IB4[D6]
0
D0
diagnostic bits on DBx4 and DBx5
0 = simple AC/DC-load diagnostic
1 = advanced DC-load diagnostic
Table 14.
Instruction byte IB3 bit description …continued
Bit
Symbol
Description
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