поискавой системы для электроныых деталей |
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TDA8416 датащи(PDF) 8 Page - NXP Semiconductors |
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TDA8416 датащи(HTML) 8 Page - NXP Semiconductors |
8 / 19 page November 1989 8 Philips Semiconductors Preliminary specification TV and VTR stereo/dual sound processor with integrated filters and I2C-bus control TDA8416 Control ports The general purpose control ports C1 and C2 can be set to LOW, HIGH or high impedance via the I2C-bus. I2 C-bus receiver and data handling Bus specification The TDA8416 is controlled, via the bidirectional 2-line I2 C-bus, by a microcomputer. The two lines are a serial data line (SDA) and a serial clock line (SCL). Both lines must be connected to a positive supply via a pull-up resistor. Data transfer may be initiated only when the bus is not busy. When the bus is free both lines are HIGH. The data on the SDA line must be stable during the HIGH period of the clock. The HIGH or LOW state of the data line can only change when the clock signal on the SCL line is LOW. The set up and hold times are specified in the CHARACTERISTICS. A HIGH-to-LOW transition of the SDA line while SCL is HIGH is defined as the start condition (S). A LOW-to-HIGH transition of the SDA line while SCL is HIGH is defined as the stop condition (P). The bus receiver will be reset on the reception of a start condition. The bus is considered to be busy after the start condition. The bus is considered to be free again after a stop condition. The I2 C-BUS PROTOCOL OF THE TDA8416 The TDA8416 is controlled by a microcomputer and can be written to or read from via the I2 C-bus. The first byte is the address and determines whether the TDA8416 is to be read from (status register) or written to (switch register or mute and port control register). Fig.4 Address byte. Where: S = start bit A = acknowledge bit MAD = module address bit Read from (TDA8416 is a slave transmitter) Write to (TDA8416 is a slave receiver) MAD = LOW = > A3 = A4 = 0 −> slave address = 1000 010 MAD = HIGH = > A3 = A4 = 1 −> slave address = 1011 010 The MAD input (pin 20) allows the TDA8416 to operate from two different addresses: |
Аналогичный номер детали - TDA8416 |
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Аналогичное описание - TDA8416 |
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