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參數資料
型號: TFA9812HN
廠商: NXP SEMICONDUCTORS
元件分類: 音頻/視頻放大
英文描述: 15 W, 2 CHANNEL, AUDIO AMPLIFIER, PQCC48
封裝: 7 X 7 MM, 0.85 MM HEIGHT, PLASTIC, MO-220, SOT619-8, HVQFN-48
文件頁數: 20/66頁
文件大?。?/td> 386K
代理商: TFA9812HN
TFA9812_2
NXP B.V. 2009. All rights reserved.
Preliminary data sheet
Rev. 02 — 22 January 2009
27 of 66
NXP Semiconductors
TFA9812
BTL stereo Class-D audio amplier with I2S input
[1]
[2]
Window Protection is only checked at power-up.
9.
I2C bus interface and register settings
9.1 I2C bus interface
The TFA9812 supports the 400 kHz I2C bus microcontroller interface mode standard. This
can be used to control the TFA9812 and to exchange data with it when in I2C control
mode, see Section 8.2.1.
The TFA9812 can operate in I2C slave mode only as slave receiver or a slave transmitter.
The serial hardware interface involves the pins of the TFA9812 as described in Table 22.
Voltage values applied to the I2C bus device address pins are interpreted as described in
9.2 I2C bus TFA9812 device addresses
Table 24 shows the register address options for the TFA9812 as part of the 8-bit byte that
contains the device address as well as the bit indicator read/write_not R/!W. The TFA9812
supports four different addresses, each of which can be congured using the pins
ADSEL1/PLIM1 and ADSEL2/PLIM2, see Table 22.
OFP
PLL frequency > 140 MHz
Floating
OFP
Floating
Restart (fault to operating
when
PLL frequency < 140 MHz)
IBP
BCK/WS is not 32
± 2,
48 2 or 64 2
Floating
-
Floating
Restart (fault to operating
when BCK/WS is 32
± 2,
48 2 or 64 2)
Table 21.
Overview protections …continued
Protections
Symbol Conditions
DIAG
pin
I2C
ag[1]
Output
Recovering
Table 22.
I2C pins in I2C control mode
Pin name
Description
SCL/SFOR
I2C bus clock input
SDA/MS
I2C bus data input and output
ADSEL2/PLIM2
I2C bus device address bit A2
ADSEL1/PLIM1
I2C bus device address bit A1
Table 23.
I2C pin voltages in I2C control mode
Logic value
Voltage A2/A1
0< VIL
1> VIH
Table 24.
I2C bus device address
(MSB)
Bit
(LSB)
11010A2
A1
R/!W
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TFA9812HN/N1,518 功能描述:IC AMP AUDIO 15W STER D 48HVQFN RoHS:是 類別:集成電路 (IC) >> 線性 - 音頻放大器 系列:- 產品培訓模塊:Lead (SnPb) Finish for COTS Obsolescence Mitigation Program 標準包裝:2,500 系列:DirectDrive® 類型:H 類 輸出類型:耳機,2-通道(立體聲) 在某負載時最大輸出功率 x 通道數量:35mW x 2 @ 16 歐姆 電源電壓:1.62 V ~ 1.98 V 特點:I²C,麥克風,靜音,短路保護,音量控制 安裝類型:表面貼裝 供應商設備封裝:25-WLP(2.09x2.09) 封裝/外殼:25-WFBGA,WLCSP 包裝:帶卷 (TR)
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