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參數(shù)資料
| 型號(hào)： | TDF8554J/N2 |
| 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(yè)數(shù)： | 24/56頁(yè) |
| 文件大?。?/td> | 597K |
| 代理商： | TDF8554J/N2 |
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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
30 of 56
NXP Semiconductors
TDF8554J
4
45 W power amplifier with multiple voltage regulator
9.2 I2C-bus data bytes
If address byte bit R/W = 1, the TDF8554J sends 4 data bytes to the microprocessor DB1,
All bits are latched.
All data bits reset only after reading all 4 data bytes (clear after read), except D4 and D5.
D2 is set after a read operation, see Section 7.5.2.
For explanation of AC and DC load detection bits, see Section 7.5.3.
Table 17.
Data byte DB1 bit description
Bit
Symbol
Description
7
D7
amplifier thermal protection pre-warning
0 = no warning
1 = junction temperature above pre-warning level
6
D6
amplifier maximum thermal protection
0 = no warning
1 = amplifier temperature above pre-warning level
5
D5
channel 4 load detection results; see Table 18
4D4
3
D3
channel 4 diagnostic results; see Table 19
2
D2
channel 4 output offset
0 = no output offset
1 = output offset
1
D1
channel 4 VP short-circuit detection
0 = no short-circuit to VP
1 = short-circuit to VP
0
D0
channel 4 short-circuit to ground detection
0 = no short-circuit to ground
1 = short-circuit to ground
Table 18.
Channel load detection results
Bit
IB4[D0] = 1
IB4[D0] = 0
D5
D4
0
normal load
normal load; no AC load
1
0
open load
no normal load; no AC load
1
invalid
no normal load; AC load
0
1
line driver load
normal load; AC load
Table 19.
Channel diagnostic results
Bit
Symbol
IB5[D3] = 0
IB5[D3] = 1[1]
D3
0 = no shorted load
0 = no speaker fault
1 = shorted load
1 = speaker fault
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| TDF8590TH | 制造商:PHILIPS 制造商全稱:NXP Semiconductors 功能描述:2 X 80 W SE (4 OHM) or 1 X 160 W BTL (8 OHM) class-D amplifier |
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| TDF8590TH/N1-T | 功能描述:音頻放大器 AMPLIFIER CLASS D RoHS:否 制造商:STMicroelectronics 產(chǎn)品:General Purpose Audio Amplifiers 輸出類型:Digital 輸出功率: THD + 噪聲: 工作電源電壓:3.3 V 電源電流: 最大功率耗散: 最大工作溫度: 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:TQFP-64 封裝:Reel |
| TDF8590TH/N1TJ | 制造商:NXP Semiconductors 功能描述:- Tape and Reel |
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