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CV8788

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CV8788

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The CV8788 device is a high quality HD transmitter with multi-format audio input. The CV8788 device supports video signals up to 1080p60 and UXGA resolution.

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General Description

The CV8788 device is a high quality HD transmitter with multi-format audio input. The CV8788 device supports video signals up to 1080p60 and UXGA resolution.

The device contains a 24 Bits audio ADC, So CV8788 can accept three format audio signal: Digital audio S/PDIF and I2S, analog stereo Line in.

Features

Video Processing

Automatic format detection
Support 480i/p, 576i/p, 720p25/30/50/60, 1080i50/60, 1080p24/25/30/50/60
Support VESA mode from VGA to UXGA
Support SDR and DDR data rate
Support BT601/BT1120/BT656
Support 8-bit/16-bit/24-bit input

Analog audio Front-end

Advance Multi-bit ΔΣ Architecture
24-bit Conversion
Supports Audio Sample Rates Up to 108Khz
Low-Latency Digital Filter

Digital audio interface

Four I2S inputs with sample rate of 32~192Khz
S/PDIF interface supporting PCM,Dolby Digital, DTS digital audio at up to 192Khz frame rate
Compatible with IEC 60958 and IEC 61937

HD Transmitter

HD 1.3/DVI 1.0 compliant transmitter up to 170Mhz, supporting 1080p and UXGA.
Monitor detection

Packaging

88 pin plastic QFN，Size 8mmX8mm.

5.1.png

Pin Diagram

5.2.png

Pin Description

PIN	Signal Name	Type	Dir	Description
2,3	AVSS	Ground	P/G	Audio ADC Ground
4	ARIN	Analog	Input	Line Input for Left Channel.
5	ALIN	Analog	Input	Line Input for Right Channel.
6	AV33_AU	Power		Audio ADC 3.3V power supply
7	SPDIF	Schmitt	Input	S/PDF Audio Input.
8	AU_MCL_K	Schmitt	Input/Output	Audio Master Clock.
9,10,11,12	I2S_D	Schmitt	Input/Output	I2S Serial Data.
13	I2S_WS	Schmitt	Input/Output	I2S Word Select.
14	I2S_SCK	Schmitt	Input/Output	I2S Serial Clock.
15	DV18	Power	P/G	Digital power 1.8V
16	HPD	Schmit 5–V tolerant	Input	Hot Plug Detect Input.
17	DSDA	Schmitt Open-drai 5–V tolerant	Input/Output	DDC I2C Bus Data.
18	DSCL	Schmitt 5–V tolerant	Input/Output	DDC I2C Bus Clock.
19	CEC	Schmitt 5–V tolerant	Input	CEC
20	DV33	Power	P/G	Digital IO power 3.3V
21	SA	Schmitt	Input/Output	I2S ADDRESS Select.
22	AV33	Power	P/G	Analog Power 3.3V
23	AVSS	Ground	P/G	Analog Ground
24	REXT	Analog	Input	Voltage Swing Adjust. A resistor is connected from this signal to GROUND.This resistor determines the amplitude of the voltage swing.
25,26	AVSS	Power	P/G	Analog Ground
27	TXCN	TMDS	Output	TMDS output clock pairs.
28	TXCP	TMDS	Output
29	AV18H			HD TX 1.8V Power
30	TX0N	TMDS	Output	TMDS ouptut data0 pairs.
31	TXOP	TMDS	Output
32	AVSS	Ground	P/G	Analog Ground
33	TXIN	TMDS	Output	TMDS ouptut data1 pairs.
34	TXIP	TMDS	Output
35	AV18H	Power	P/G	HD TX 1.8V Power
36	TX2N	TMDS	Output	TMDS ouptut data1 pairs.
37	TX2P	TMDS	Output
38	AVSS	Ground	P/G	Analog Ground
39	DVSS	Power	P/G	Ground
30	DV18	Power	P/G	Digital power 1.8V
41,42,43,44,45,54,55, 56,57,58,59,60,61,66, 67,68,69,70,71,72,73, 74,75,76	D	Schmitt	Input/Output	Digital Video data IO
46	DV33	Power	P/G	Ground
47	XTI			Crystal Input.
48	XTO			Crystal Output.
49	DVSS	Ground	P/G	Ground
50	RSTB	Schmitt	Input	Reset signal(active LOW)
51	SCL	Schmitt	Input	Serial Port Data Clock
52	SDA	Schmit Open drain	Input/Output	Serial Port Data I/O
53	VD18	Power	P/G	Digital Power 1.8V
62	HSIN	Schmit 5–V tolerant	Input	Horizontal Sync Input
63	VSIN	Schmitt 5–V tolerant	Input	Vertical Sync Input
64	VCLK	Schmitt	Input	Video pixel clock Input
65	DV33	Power	P/G	Digital IO power 3.3V
77	HSOUT	Schmitt	Output	Horizontal Sync Output
78	VSOUT	Schmitt	Output	Vertical Sync Output
79	AV33	Power	P/G	Analog 3.3V
80,81,82,83,84,85,86,87,88,1	NC
89	EPAD	Ground	P/G	EPAD,Connect to Ground