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参数资料
| 型号： | TFA9812HN |
| 厂商： | NXP SEMICONDUCTORS |
| 元件分类： | 音频／视频放大 |
| 英文描述： | 15 W, 2 CHANNEL, AUDIO AMPLIFIER, PQCC48 |
| 封装： | 7 X 7 MM, 0.85 MM HEIGHT, PLASTIC, MO-220, SOT619-8, HVQFN-48 |
| 文件页数： | 21/66页 |
| 文件大小： | 386K |
| 代理商： | TFA9812HN |
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TFA9812_2
NXP B.V. 2009. All rights reserved.
Preliminary data sheet
Rev. 02 — 22 January 2009
28 of 66
NXP Semiconductors
TFA9812
BTL stereo Class-D audio amplier with I2S input
9.3 I2C write cycle description
byte size is 8 bits. The I2C registers of the TFA9812 store two data bytes. Data is always
written in pairs of two bytes. Data transfer is always MSB rst.
The cycle format for writing to the TFA9812 using SDA is as follows:
1. The microcontroller asserts a start condition (S).
2. The microcontroller sends the device address (7 bits) of the TFA9812 followed by the
R/!W bit set to 0.
3. The TFA9812 asserts an acknowledge (A).
4. The microcontroller writes the 8-bit TFA9812 register address to which the rst data
byte will be written.
5. The TFA9812 asserts an acknowledge.
6. The microcontroller sends the rst byte. This is the most signicant byte of the
register.
7. The TFA9812 asserts an acknowledge.
8. The microcontroller sends the second byte.
9. The TFA9812 asserts an acknowledgement.
10. The microcontroller can either assert the stop condition (P) or continue with a further
pair of data bytes, repeating step 6. In the latter case the targeted register address will
have been auto-increased by the TFA9812.
9.4 I2C read cycle description
The byte size is 8 bits. The I2C registers of the TFA9812 store two data bytes. Data is
always read in pairs of two bytes. Data transfer is always MSB-rst.
The read cycle format for writing to the TFA9812 using SDA is as follows:
1. The microcontroller asserts a start condition (S).
2. The microcontroller sends the device address (7 bits) of the TFA9812 followed by the
R/!W bit set to 0.
3. The TFA9812 asserts an acknowledge (A).
4. The microcontroller writes the 8-bit TFA9812 register address from which the rst data
byte will be read.
5. The TFA9812 asserts an acknowledge.
6. The microcontroller asserts a repeated start (Sr).
7. The microcontroller resends the device address (7 bits) of the TFA9812 followed by
the R/!W bit set to 1.
8. The TFA9812 asserts an acknowledge.
Table 25.
I2C write cycle
Start
TFA9812
Address
R/!W
TFA9812 rst
register address
MS
databyte
LS
databyte
More
data...
Stop
S
11010A2A1
0
A
ADDR
A
MS1
A
LS1
<....>
P
相关PDF资料 |
PDF描述 |
|---|---|
| TFA9812HN/N1,518 | 15 W, 2 CHANNEL, AUDIO AMPLIFIER, PQCC48 |
| TFA9812HN/N1,557 | 15 W, 2 CHANNEL, AUDIO AMPLIFIER, PQCC48 |
| TFDS5500-TR3 | TRANSMITTER/RECEIVER IC, DMA8 |
| TFDT5500-TR3 | TRANSMITTER/RECEIVER IC, SMA8 |
| TFDU5100-TR3 | TRANSMITTER/RECEIVER IC, SMA8 |
相关代理商/技术参数 |
参数描述 |
|---|---|
| TFA9812HN/N1,518 | 功能描述:IC AMP AUDIO 15W STER D 48HVQFN RoHS:是 类别:集成电路 (IC) >> 线性 - 音頻放大器 系列:- 产品培训模块:Lead (SnPb) Finish for COTS Obsolescence Mitigation Program 标准包装:2,500 系列:DirectDrive® 类型:H 类 输出类型:耳机，2-通道（立体声） 在某负载时最大输出功率 x 通道数量:35mW x 2 @ 16 欧姆 电源电压:1.62 V ~ 1.98 V 特点:I²C，麦克风，静音，短路保护，音量控制 安装类型:表面贴装 供应商设备封装:25-WLP（2.09x2.09） 封装/外壳:25-WFBGA，WLCSP 包装:带卷 (TR) |
| TFA9812HN/N1,557 | 功能描述:IC AMP AUDIO 15W STER D 48HVQFN RoHS:是 类别:集成电路 (IC) >> 线性 - 音頻放大器 系列:- 产品培训模块:Lead (SnPb) Finish for COTS Obsolescence Mitigation Program 标准包装:2,500 系列:DirectDrive® 类型:H 类 输出类型:耳机，2-通道（立体声） 在某负载时最大输出功率 x 通道数量:35mW x 2 @ 16 欧姆 电源电压:1.62 V ~ 1.98 V 特点:I²C，麦克风，静音，短路保护，音量控制 安装类型:表面贴装 供应商设备封装:25-WLP（2.09x2.09） 封装/外壳:25-WFBGA，WLCSP 包装:带卷 (TR) |
| TFA9815 | 制造商:PHILIPS 制造商全称:NXP Semiconductors 功能描述:Stereo full-bridge audio amplifier 2 x 17 W |
| TFA9815T | 制造商:PHILIPS 制造商全称:NXP Semiconductors 功能描述:Stereo full-bridge audio amplifier 2 x 17 W |
| TFA9815T/N1 | 制造商:NXP Semiconductors 功能描述:Tube |
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