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CV8988

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CV8988

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The CV8988 device is a high quality interface converter with analog video Front-end, analog audio Front-end and HD Transmitter.

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General Description

The CV8988 device is a high quality interface converter with analog video Front-end, analog audio Front-end and HD Transmitter.
The CV8988 device supports video signals up to 1080p60 and UXGA resolution.
The device contains a 24 Bits audio ADC, So CV8988 can accept three format audio signal: Digital audio S/PDIF and I2S, analog stereo Line in.
The video and audio TTL pin can defined as input and output. So the CV8986 can be used as:
Analog video and video to TTL
Analog video and audio to HD
Digital Video and Digital Audio to HD

Features

Analog Video Front-end

10-bit ADCs sampling up to 192Mhz
Flexible input multiplexers to support YPBPR, VGA and RGBS
Automatic format detection
Automatic position detection
Automatic gain and offset calibration
Automatic phase calibration

Digital Video input

Support 480i/p, 576i/p, 720p25/30/50/60, 1080i50/60, 1080p24/25/30/50/60
Support VESA mode from VGA to UXGA
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

Digital Video output

Support SDR and DDR data rate
Support BT601/BT1120/BT656
Support 8-bit/16-bit/24-bit input

Packaging

88 pin plastic QFN，Size 10mmX10mm.

Application

7.1.png

Pin Diagram

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Pin Description

PIN	Signal Name	Type	Dir	Description
1	AVSS	Ground	P/G	Ground
2	ARIN	Analog	Input	Line Input for Right Channel.
3	ALIN	Analog	Input	Line Input for Left Channel.
4	AV33_AU	Power	P/G	Analog Power 3.3V
5	SPDIF	Schmitt	Input	S/PDIF Audio Input.
6	AU_MCLK	Schmitt	Input/Output	Audio Master Clock.
7	I2S_D	Schmitt	Input/Output	I2S Serial Data.
8	I2S_WS	Schmitt	Input/Output	I2S Word Select.
9	I2S_SCK	Schmitt	Input/Output	I2S Serial Clock.
10,11,12	DVSS	Ground	P/G	Ground
13,14	VDD18	Power	P/G	Digital power 1.8V
15	HPD	Schmitt 5-V tolerant	Inpput	Hot Plug Detect Input.
16	DSDA	Schmitt Open-drain 5-V tolerant	Input/Output	DDC I2C Bus Data.
17	DSCL	Schmitt 5-V tolerant	Input/Output	DDC I2C Bus Clock.
18,19	VDDIO	Power	P/G	Digital IO power 3.3V
20	SA	Schmitt	Input/Output	I2S ADDRESS Select.
21,22	NC
23	AVDD33	Power	P/G	Analog Power 3.3V
24	AVSS	Ground	P/G	Analog Ground
25	REXT	Analog	Input	Voltage Swing Adjust.A resistor is connected from this signal to GROUND.This resistor determines the amplitude of the voltage swing.
26	AVSS	Power	P/G	Analog Ground
27	TXCN	TMDS	Output	TMDS output clock pair.
28	TXCP	TMDS	Output
29	AV18H			HD TX 1.8V Power
30	TX0N	TMDS	Output	TMDS ouptut data0 pairs.
31	TX0P	TMDS	Output
32	AVSS	Ground	P/G	Analog Ground
33	TX1N	TMDS	Output	TMDS ouptut data1 pairs.
34	TX1P	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	Ground	P/G	Ground
40,41,42,43,44,53,54, 55,56,57,58,59,60,65, 66,67,68,69,70,71,72, 73,74,76	D	Schmitt	Input/Output	Digital Video data IO
45,46	VDDIO	Power	P/G	Ground
47	XTI			Crystal Input.
48	XTO			Crystal Output.
49	RSTB	Schmitt	Input	Reset signal(active LOW)
50	SCL	Schmitt	Input	Serial Port Data Clock
51	SDA	Schmitt Open drain	Input/Output	Serial Port Data I/O
52	VD18	Power	P/G	Digital Power 1.8V
61	HSIN	Schmitt 5-V tolerant	Input	Horizontal Sync Input
62	VSIN	Schmitt 5-V tolerant	Input	Vertical Sync Input
63	VCLK	Schmitt	Input	Video pixel clock Input
64	VDDIO	Power	P/G	Digital IO power 3.3V
75	VDDIO	Power	P/G	Digital IO power 3.3V
77	DE	Schmitt	Output	DE Output
78	HSOUT	Schmitt	Output	Horizontal Sync Output
79	VSOUT	Schmitt	Output	Vertical Sync Output
80	BIN	Analog	Input	Analog Input for Blue/CB Channel
81,85,88	AVSS	Ground	P/G	ADC Ground
82	SOG	Analog	Input	Sync-on-Green Input
83	GIN	Analog	Input	Analog Input for Green/Y Channel
84	AVDD18	Power	P/G	Analog 1.8V
86	AVDD33	Power	P/G	Analog 3.3V
87	RIN	Analog	Input	Analog Input for Red/CR Channel
89	EPAD	Ground	P/G	EPAD,Connect to Ground