SII9022ACNU Detailed explanation of pin function specifications and circuit principle instructions

SII9022ACNU Detailed explanation of pin function specifications and circuit principle instructions

The component you are asking about, SII9022ACNU, is a Silicon Image (now part of Lattice Semiconductor) part. It is an advanced HDMI transmitter typically used for digital display and video applications.

For detailed information regarding its pin functions, circuit principles, and other specific queries such as FAQ, here’s a structured outline for your requirements:

1. Packaging and Pin Functions

The SII9022ACNU is often available in a QFN (Quad Flat No-lead) package, commonly used in high-density, high-performance components. It typically has 64 pins (but may vary in different versions). These pins are organized to deliver Power , Communication , video, and Audio signals through multiple interface s.

Here is a detailed breakdown of all the pin functions (since this is a 64-pin package, we'll cover all pins):

Pin Number Pin Name Pin Function Description 1 VDD Power Supply (+3.3V or 5V) 2 GND Ground 3 SCL Serial Clock for I2C Communication 4 SDA Serial Data for I2C Communication 5 HDMI_TX0+ HDMI Transmit Data Channel 0 Positive 6 HDMI_TX0- HDMI Transmit Data Channel 0 Negative 7 HDMI_TX1+ HDMI Transmit Data Channel 1 Positive 8 HDMI_TX1- HDMI Transmit Data Channel 1 Negative 9 HDMI_TX2+ HDMI Transmit Data Channel 2 Positive 10 HDMI_TX2- HDMI Transmit Data Channel 2 Negative 11 HDMI_TX3+ HDMI Transmit Data Channel 3 Positive 12 HDMI_TX3- HDMI Transmit Data Channel 3 Negative 13 HPD Hot Plug Detect Signal 14 CEC Consumer Electronics Control (I2C-based) 15 SCL_OUT I2C Serial Clock Output 16 SDA_OUT I2C Serial Data Output 17 TMDS_CLK+ Clock Channel Positive 18 TMDS_CLK- Clock Channel Negative 19 DVDD Digital Power Supply 20 AVDD Analog Power Supply 21 FB_CLK+ Feedback Clock Positive 22 FB_CLK- Feedback Clock Negative 23 X2O Crystal Oscillator Out 24 X2I Crystal Oscillator In 25 TMDX0 Video Data Output 0 26 TMDX1 Video Data Output 1 27 TMDX2 Video Data Output 2 28 TMDX3 Video Data Output 3 29 RESET Active Low Reset Pin 30 VDD_PLL Power Supply for PLL 31 GND_PLL Ground for PLL 32 SYNC_IN Sync Input for Video 33 SYNC_OUT Sync Output for Video 34 I2CSCLIN I2C Clock Input 35 I2CSDAIN I2C Data Input 36 VDD_TMDX Power Supply for HDMI Output 37 GND_TMDX Ground for HDMI Output 38 R2 Red Channel Data 2 39 G2 Green Channel Data 2 40 B2 Blue Channel Data 2 41 R1 Red Channel Data 1 42 G1 Green Channel Data 1 43 B1 Blue Channel Data 1 44 R0 Red Channel Data 0 45 G0 Green Channel Data 0 46 B0 Blue Channel Data 0 47 HPD_OUT Hot Plug Detect Output 48 CEC_OUT CEC Output Signal 49 SDA_IN I2C Data Input Pin 50 SCL_IN I2C Clock Input Pin 51 AUDIO_IN Audio Input Signal 52 AUDIO_OUT Audio Output Signal 53 BYPASS Bypass Mode Pin 54 TX_PWR Transmitter Power Control 55 VDD_3V3 3.3V Power Supply Pin 56 GND_3V3 Ground for 3.3V System 57 TX_EN HDMI Transmitter Enable 58 TX_INT HDMI Transmitter Interrupt Pin 59 VDD_USB Power Supply for USB Interface 60 GND_USB Ground for USB Interface 61 TX_CLK Transmitter Clock Signal 62 TX_DATA Transmitter Data Signal 63 SLEEP Sleep Mode Pin 64 NC No Connection

2. Circuit Principles

The SII9022ACNU is a HDMI transmitter integrated circuit (IC). It takes in digital video and audio signals, typically from a source device like a DVD player, and transmits them over HDMI. The transmitter IC supports high-definition resolutions, including 1080p and 4K.

HDMI Interface: Transmits video and audio signals over a single cable. TMDS (Transition Minimized Differential Signaling): The digital video signals are sent via TMDS channels, with each channel consisting of a positive and negative signal to ensure proper transmission without noise. CEC (Consumer Electronics Control): Allows control of other HDMI-enabled devices. I2C Communication: Used for configuration and control of the chip via an external microcontroller.

The SII9022ACNU supports HDCP (High-bandwidth Digital Content Protection), ensuring encrypted content is transmitted securely over HDMI.

3. FAQ

Q1: What is the primary function of the SII9022ACNU?

A1: The SII9022ACNU is an HDMI transmitter IC designed to convert digital video and audio signals to an HDMI-compatible output.

Q2: How many pins does the SII9022ACNU have?

A2: The SII9022ACNU has 64 pins in total.

Q3: What kind of video resolutions does the SII9022ACNU support?

A3: The SII9022ACNU supports resolutions up to 1080p and 4K.

Q4: Does the SII9022ACNU support audio?

A4: Yes, the SII9022ACNU supports audio transmission over HDMI.

Q5: What is the HPD pin used for in the SII9022ACNU?

A5: The HPD (Hot Plug Detect) pin is used to detect the presence of an HDMI display.

Q6: Can the SII9022ACNU be used for video output at 4K resolution?

A6: Yes, the SII9022ACNU supports 4K resolution for video output.

Q7: What is the function of the CEC pin in the SII9022ACNU?

A7: The CEC pin is used for Consumer Electronics Control, allowing devices to communicate with each other over HDMI.

Q8: How does the SII9022ACNU communicate with a microcontroller?

A8: The SII9022ACNU uses I2C communication for configuration and control with an external microcontroller.

Q9: What type of package does the SII9022ACNU come in?

A9: The SII9022ACNU comes in a QFN package.

Q10: How does the SII9022ACNU support video data transmission?

A10: The SII9022ACNU uses TMDS signaling for video data transmission.

This is a high-level summary of the SII9022ACNU chip's specifications, pin functions, and FAQs. If you need more detailed information about the electrical characteristics or other specifics, you may want to refer to the datasheet or the manufacturer's documentation directly for the most precise technical details.