Replacement for NCS8823 chip solution | CS5260 completely replaces NCS8823 chip | Type-C to VGA low-cost solution

Replacement for NCS8823 chip solution | CS5260 completely replaces NCS8823 chip | Type-C to VGA low-cost solution

NCS8823 is a DisplayPort signal to VGA converter through USB Type-C connector. It is suitable for USB Type-C to VGA converter, adapter, docking device. This device combines a DisplayPort receiver and a VGA transmitter based on USB Type-C. NCS8823 can work without any external configuration or settings. CS5260 can completely replace the compatible NCS8823 chip. CS5260 integrates a DP1.4 compliant receiver and a VGA interface. In addition, a CC controller is used for CC communication to implement DP Alt mode. CS5260 supports USB Type-C Display Port Alternate Mode. CS5260 can transmit video and audio streams from the USB Type-C interface to the VGA port. In the CS5260 chip, the DisplayPort v1.2 receiver supports 1, 2, 4 different 1.62Gbps, 2.7Gbps and 5.4Gbps frequency configuration inputs, and supports 1920x1200P@60Hz when VGA output. Solution designers can use CS5260 to implement operations such as TYPE-C to VGA audio and video application conversion and program pause.

In summary, CS5260 is consistent with NCS8823 in terms of functional characteristics, and the application scenarios and uses of CS5260 and NCS8823 are also consistent:

CS5260 Application Features

Parameter feature comparison between CS5260 and NCS8823:

CS5260 parameter characteristics:

USB Type-C DisplayPort (DP) Alternate Mode Input (Sink)

USB Type-C Specification 1.2 and backward compatible with Type-C Specification 1.0

Compliant with VESQ DisplayPort TM V1.4 standard. Supports 2 digital inputs with speeds up to RBR (1.62-Gbps)/HBR (2.7-Gbps)/HBR2 (5.4-Gbps)

Built-in CC controller for plug and direction detection

Up to HBR2 (5.4-Gbps input

Built-in high-performance adaptive equalizer

Supports 1 MHz AUX channel USB Type-C Channel Configuration (CC) function

VGA output interface

Three 8-bit DACs (Digital-to-Analog Converters) with clock rates up to 210MHz

Supports up to 1920x1200@60Hz (reduces blanking below 2.7g), 2048X1152@60Hz (reduces blanking below 2.7g), and 2048X1536@60Hz (reduces blanking below 2.7g)

Embedded V synchronous 5V buffer

HBM4-KV for VGA connector pinout

Compliant with VESA VSIS v1r2 standard

NCS8823 parameter characteristics:

VGA output

The highest resolution can reach WUXGA (1920*1200@RB)@60Hz

Triple 8-bit DAC (Digital-to-Analog Converter), clock up to 166MHz

VESA VSIS v1r2 compliant

R/G/B swap

USB TYPE-C

USB Type-C cable and

Conforms to connector specification version 1.3

Complies with USB Power Delivery Specification Rev3.0

DisplayPort Alt Mode compliant with USB Type-C standard version 1.0a supports 2 main links at link rates of 1.62Gbps (RBR) or 2.7Gbps (HBR)

The advantages of CS5260 replacing NCS8823 are:

1.CS5260 embedded oscillator or external crystal optional

2. CS5230 embedded linear dropout regulator (LDO)

3.CS5260 embedded microcontroller

4.CS5260 embedded EDID (if the terminal device does not have EDID, CS5260 will respond to EDID)

5.CS5260 Embedded V Sync/H Sync 5V Buffer

The CS5260 chip has a high degree of integration, a simple overall solution design, fewer peripheral devices, a lower overall BOM cost, and a higher overall cost performance than NCS8823. The packaging method of CS5260 and NCS8823 has always been QFN32 packaging.

CS5260 replaces NCS8823 to design Type-C to VGA z conversion solution design circuit schematic diagram reference is as follows: