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CXA20690 PDF Datasheet – Audio/Video Switch

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Part Number: CXA20690, Correct Partnumber : CXA2069Q

Function: S2-Compatible 7-Input 3-Output Audio/Video Switch

Package: QFP 64 Pin Type

Manufacturer: Sony Corporation

Images:

CXA20690 datasheet

 

Description

The CXA20690 is a 7-input, 3-output audio/video switch featuring I2C bus compatibility for TVs. This IC has input pins that are compatible with S2 protocol.

The device is a specific integrated circuit (IC) manufactured by Sony. It is a part of the CXA series of ICs, which are known for their use in various electronic applications, including audio and video processing.

This IC is a stereo audio power amplifier IC that is designed to provide amplification for audio signals. It is often used in consumer electronics devices such as audio systems, radios, and portable music players.

Pinouts:

CXA20690 pinout

 

Features:

1. 4 inputs that are compatible with S2 protocol

2. Serial control with I2C bus

3. 7 inputs, 3 outputs

4. The desired inputs can be selected independently for each of the 3 outputs

5. Wide band video amplifier (20 MHz, –3 dB)

6. Y/C MIX circuit

7. Slave address can be changed (90H/92H)

8. Audio muting from external pin

9. High impedance maintained by I2C bus lines (SDA, SCL) even when power is OFF

10. Wide audio dynamic range (3 Vrms typ.)

CXA20690 pdf

Applications

1. Audio/video switch featuring I2C bus compatibility for TVs

Structure:

1. Bipolar silicon monolithic IC

 

CXA20690 PDF Datasheet

SF1533 PDF – PWM Power Switch – SiFirst

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Part Number: SF1533, SF1533SG

Function: PWM Power Switch

Package: SOP 8 Pin Type

Manufacturer: SiFirst Technology

Images:SF1533 pdf switch

Description

SF1533 is a high performance, high efficiency, highly integrated current mode PWM power switch for offline flyback converter applications. In SF1533, PWM switching frequency with shuffling is fixed to 50KHz and is trimmed to tight range. When the output power demands decrease, the IC decreases switching frequency based on the proprietary η -BalanceTM control to boost power conversion efficiency at the light load. When output power falls below a given value, the IC enters into burst mode and provides excellent efficiency without audio noise.

The IC can achieve “Zero OCP/OPP Recovery Gap” using SiFirst’s proprietary control algorithm. Meanwhile, the OCP/OPP variation versus universal line input is compensated. The IC has built-in synchronized slope compensation to prevent sub-harmonic oscillation at high PWM duty output. The IC also has built-in soft start function to soften the stress on the MOSFET during power on period. SF1533 integrates functions and protections of Under Voltage Lockout (UVLO), VCC Over Voltage Protection (OVP), Cycle-by-cycle Current Limiting (OCP), Pins Floating Protection, Over Load Protection (OLP), VCC Clamping, Leading Edge Blanking (LEB), etc. SF1533 is available in SOP8 packages.

 

Features

1. Built-in 600V Power MOSFET

2.  Proprietary η -BalanceTM Control to Boost Light Load Efficiency

3.  Proprietary “Zero OCP/OPP Recovery Gap” Control

4. Fixed 50KHz Switching Frequency

5.  Built-in Soft Start Function

6. Very Low Startup Current

7.  Frequency Reduction and Burst Mode Control for Energy Saving

8. Current Mode Control

9. Built-in Frequency Shuffling

10. Built-in Synchronous Slope Compensation

11. Cycle-by-Cycle Current Limiting

12. Built-in Leading Edge Blanking (LEB)

13. Constant Power Limiting

14. Pins Floating Protection

15. Audio Noise Free Operation

16. VDD OVP & Clamp

17. VDD Under Voltage Lockout (UVLO)

Pinouts:

SF1533 pinout datasheet

Applications:

1. AC/DC Adaptors

2. Open-frame SMPS

3. Set-Top Box Power Supplies

4. ATX Standby Power

SF1533 PDF Datasheet