công cụ tìm kiếm bảng dữ liệu linh kiện điện tử
  Vietnamese  ▼
ALLDATASHEET.VN

X  

LM4846TL bảng dữ liệu(PDF) 9 Page - National Semiconductor (TI)

[Old version datasheet] Texas Instruments acquired National semiconductor.
tên linh kiện LM4846TL
Giải thích chi tiết về linh kiện  Output Capacitor-less Audio Subsystem with Programmable National 3D
Download  19 Pages
Scroll/Zoom Zoom In 100%  Zoom Out
nhà sản xuất  NSC [National Semiconductor (TI)]
Trang chủ  http://www.national.com
Logo NSC - National Semiconductor (TI)

LM4846TL bảng dữ liệu(HTML) 9 Page - National Semiconductor (TI)

Back Button LM4846TL Datasheet HTML 5Page - National Semiconductor (TI) LM4846TL Datasheet HTML 6Page - National Semiconductor (TI) LM4846TL Datasheet HTML 7Page - National Semiconductor (TI) LM4846TL Datasheet HTML 8Page - National Semiconductor (TI) LM4846TL Datasheet HTML 9Page - National Semiconductor (TI) LM4846TL Datasheet HTML 10Page - National Semiconductor (TI) LM4846TL Datasheet HTML 11Page - National Semiconductor (TI) LM4846TL Datasheet HTML 12Page - National Semiconductor (TI) LM4846TL Datasheet HTML 13Page - National Semiconductor (TI) Next Button
Zoom Inzoom in Zoom Outzoom out
 9 / 19 page
background image
Application Information
I
2C PIN DESCRIPTION
SDA: This is the serial data input pin.
SCL: This is the clock input pin.
ID_ENB: This is the address select input pin.
I
2CSPI_SEL: This is tied LOW for I2C mode.
I
2C COMPATIBLE INTERFACE
The LM4846 uses a serial bus which conforms to the I
2C
protocol to control the chip’s functions with two wires: clock
(SCL) and data (SDA). The clock line is uni-directional. The
data line is bi-directional (open-collector). The maximum
clock frequency specified by the I
2C standard is 400kHz. In
this discussion, the master is the controlling microcontroller
and the slave is the LM4846.
The I
2C address for the LM4846 is determined using the
ID_ENB pin. The LM4846’s two possible I
2C chip addresses
are of the form 111110X
10 (binary), where X1 = 0, if ID_ENB
is logic LOW; and X
1 = 1, if ID_ENB is logic HIGH. If the I
2C
interface is used to address a number of chips in a system,
the LM4846’s chip address can be changed to avoid any
possible address conflicts.
The bus format for the I
2C interface is shown in Figure 3. The
bus format diagram is broken up into six major sections:
The "start" signal is generated by lowering the data signal
while the clock signal is HIGH. The start signal will alert all
devices attached to the I
2C bus to check the incoming ad-
dress against their own address.
The 8-bit chip address is sent next, most significant bit first.
The data is latched in on the rising edge of the clock. Each
address bit must be stable while the clock level is HIGH.
For I
2C interface operation, the I2CSPI_SEL pin needs to be
tied LOW (and tied high for SPI operation).
After the last bit of the address bit is sent, the master
releases the data line HIGH (through a pull-up resistor).
Then the master sends an acknowledge clock pulse. If the
LM4846 has received the address correctly, then it holds the
data line LOW during the clock pulse. If the data line is not
held LOW during the acknowledge clock pulse, then the
master should abort the rest of the data transfer to the
LM4846.
The 8 bits of data are sent next, most significant bit first.
Each data bit should be valid while the clock level is stable
HIGH.
After the data byte is sent, the master must check for another
acknowledge to see if the LM4846 received the data.
If the master has more data bytes to send to the LM4846,
then the master can repeat the previous two steps until all
data bytes have been sent.
The "stop" signal ends the transfer. To signal "stop", the data
signal goes HIGH while the clock signal is HIGH. The data
line should be held HIGH when not in use.
I
2C INTERFACE POWER SUPPLY PIN (I2CV
DD)
The LM4846’s I
2C interface is powered up through the
I
2CV
DD pin. The LM4846’s I
2C interface operates at a volt-
age level set by the I
2CV
DD pin which can be set indepen-
dent to that of the main power supply pin V
DD. This is ideal
whenever logic levels for the I
2C interface are dictated by a
microcontroller or microprocessor that is operating at a lower
supply voltage than the main battery of a portable system.
201668F5
FIGURE 3. I
2C Bus Format
www.national.com
9


Số phần tương tự - LM4846TL

nhà sản xuấttên linh kiệnbảng dữ liệuGiải thích chi tiết về linh kiện
logo
National Semiconductor ...
LM4840 NSC-LM4840 Datasheet
786Kb / 19P
   Stereo 2W Audio Power Amplifiers with Digital Volume Control and Input Mux
LM4840LQ NSC-LM4840LQ Datasheet
786Kb / 19P
   Stereo 2W Audio Power Amplifiers with Digital Volume Control and Input Mux
LM4840MH NSC-LM4840MH Datasheet
786Kb / 19P
   Stereo 2W Audio Power Amplifiers with Digital Volume Control and Input Mux
LM4840MT NSC-LM4840MT Datasheet
786Kb / 19P
   Stereo 2W Audio Power Amplifiers with Digital Volume Control and Input Mux
LM4841 NSC-LM4841 Datasheet
1Mb / 31P
   Stereo 2W Amplifiers with DC Volume Control, Transient Free Outputs, and Cap-less Headphone Drive
More results

Mô tả tương tự - LM4846TL

nhà sản xuấttên linh kiệnbảng dữ liệuGiải thích chi tiết về linh kiện
logo
National Semiconductor ...
LM4946 NSC-LM4946_07 Datasheet
806Kb / 34P
   Output Capacitor-Less Audio Subsystem with Programmable National 3D
LM4845 NSC-LM4845 Datasheet
1Mb / 29P
   Output Capacitor-less Audio Subsystem with Programmable National 3D
logo
Texas Instruments
LM4946 TI1-LM4946 Datasheet
1Mb / 37P
[Old version datasheet]   Output Capacitor-Less Audio Subsystem with Programmable TI 3D
logo
National Semiconductor ...
LM4947 NSC-LM4947 Datasheet
1Mb / 32P
   Mono Class D and Stereo Audio Subsystem with OCL Headphone Amplifier and National 3D
logo
Unisonic Technologies
LR9107XG-XX-AF5-R UTC-LR9107XG-XX-AF5-R Datasheet
212Kb / 5P
   OUTPUT CAPACITOR-LESS
logo
National Semiconductor ...
LM4540 NSC-LM4540 Datasheet
298Kb / 16P
   AC ??7 Codec with National 3D Sound
LM4543 NSC-LM4543 Datasheet
304Kb / 16P
   AC ??7 Codec with National 3D Sound
logo
Rohm
BH76806FVM ROHM-BH76806FVM_09 Datasheet
489Kb / 17P
   Output Capacitor-less Video Drivers
BH76806FVM-TR ROHM-BH76806FVM-TR Datasheet
502Kb / 17P
   Output Capacitor-less Video Drivers
logo
National Semiconductor ...
LM48410 NSC-LM48410 Datasheet
735Kb / 20P
   Low EMI, Filterless, 2.3W Stereo Class D Audio Power Amplifier with National 3D Enhancement
More results


Html Pages

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19


bảng dữ liệu tải về

Go To PDF Page


Link URL




Chính sách bảo mật
ALLDATASHEET.VN
Cho đến nay ALLDATASHEET có giúp ích cho doanh nghiệp của bạn hay không?  [ DONATE ] 

Alldatasheet là   |   Quảng cáo   |   Liên lạc với chúng tôi   |   Chính sách bảo mật   |   Trao đổi link   |   Tìm kiếm theo nhà sản xuất
All Rights Reserved©Alldatasheet.com


Mirror Sites
English : Alldatasheet.com  |   English : Alldatasheet.net  |   Chinese : Alldatasheetcn.com  |   German : Alldatasheetde.com  |   Japanese : Alldatasheet.jp
Russian : Alldatasheetru.com  |   Korean : Alldatasheet.co.kr  |   Spanish : Alldatasheet.es  |   French : Alldatasheet.fr  |   Italian : Alldatasheetit.com
Portuguese : Alldatasheetpt.com  |   Polish : Alldatasheet.pl  |   Vietnamese : Alldatasheet.vn
Indian : Alldatasheet.in  |   Mexican : Alldatasheet.com.mx  |   British : Alldatasheet.co.uk  |   New Zealand : Alldatasheet.co.nz
Family Site : ic2ic.com  |   icmetro.com