ch7028b-tf-tr Chrontel, ch7028b-tf-tr Datasheet

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ch7028b-tf-tr

Manufacturer Part Number
ch7028b-tf-tr
Description
Ch7028 Tv Encoder
Manufacturer
Chrontel
Datasheet
Chrontel
Note: the above feature list is subject to change without notice. Please contact Chrontel for
more information and current updates.
209-0000-092
Features
TV encoder targets for handheld device and
surveillance camera
Supports multiple output formats such as analog TV
(NTSC and PAL). Sync signals can be provided in
separated or composite manner.
Two on-chip 10-bit high speed DACs providing
flexible output capabilities such as single or
simultaneous CVBS and S-video outputs.
90/180/270 degree image rotation and vertical or
horizontal flip.
16-Mbit SDRAM is used as a frame buffer for frame
rate conversion.
Flexible up and down scaling.
Programmable 24-bit/18-bit/16-bit/15-bit/12-bit/8-bit
digital input interface supports various RGB
(RGB888, RGB666, RGB565 and etc), YCbCr
(4:4:4 YCbCr, ITU656) and 2x or 3x multiplexed
input. CPU interface is also supported.
Supports flexible input resolution up to 800x800 and
1024x680.
Pixel by pixel brightness, contrast, hue and saturation
adjustment for each output is supported.
Pixel by pixel horizontal position adjustment and line
by line vertical position adjustment.
TV/Monitor connection detection capability. DAC
can be switched off based on detection result.
Programmable power management.
Flexible pixel clock frequency from graphics
controller is supported. (2.3MHz –120MHz)
Flexible input clock from crystal or oscillator is
supported. (2.3MHz – 64MHz)
Supports slave input clock mode only.
Fully programmable through serial port.
IO and SPC/SPD voltage supported is from 1.2V to
3.3V.
Offered in a 64-pin LQFP package.
Rev. 1.0,
03/21/2008
CH7028 TV Encoder
General Description
The CH7028 is a semiconductor device targeting
for surveillance system and consumer product for
handheld market. This device accepts digital video
signals through its 24-bit input bus and generates
NTSC, PAL video signal by its 10-bit DACs. In
addition, CH7028 has an embedded 16-Mbit
SDRAM to support the CPU interface.
CH7028 has incorporated an advanced technology
that can perform real-time video rotations and
frame rate conversions for incoming video stream.
These complicated tasks are achieved by storing
video data into the internal SDRAM and applying
scaling process if required. CH7028 provides great
flexibility for accepting different video data
formats including RGB and YCbCr (e.g. RGB565,
RGB 666, RGB 888, ITU 656).
CH7028
Brief Datasheet
1

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ch7028b-tf-tr Summary of contents

Page 1

... Fully programmable through serial port. • IO and SPC/SPD voltage supported is from 1.2V to 3.3V. • Offered in a 64-pin LQFP package. Note: the above feature list is subject to change without notice. Please contact Chrontel for more information and current updates. 209-0000-092 Rev. 1.0, 03/21/2008 CH7028 General Description ...

Page 2

... CHRONTEL Input RGB/YCbCr data format decoder CSC MUX (YCbCr to RGB) CSB WEB CPU VSYNC interface DIN SPC Serial port SPD XI PLL XO SYNC H,V,DE position adjust 2 SDRAM CSC Scaler MUX (RGB to YUV) MUX BRI CON VP HP Composite sync generation Figure 1: CH7028 block diagram ...

Page 3

... ATPG ResetB 5 AGND 6 AVDD 7 8 GNDQ_MEM 9 VDDQ_MEM AGND 10 AVDD 11 12 GND_MEM 13 VDD_MEM VDDQ_MEM 14 GNDQ_MEM 209-0000-092 Rev. 1.0, 03/21/2008 Chrontel CH7028 Figure 2: 64 pin LQFP package CH7028 D[7] 48 D[ D[4] D[ D[2] 42 D[1] 41 D[0] 40 VDDIO 39 GCLK 38 AVDD 37 AGND 36 GND_MEM 35 GND_MEM 34 VDD_MEM 33 NC ...

Page 4

... CHRONTEL 1.2 Pin description Table 1: Pin name descriptions (LQFP64 package) Pin # Type Symbol D[17: I I/O H/WEB 63 In DE/CSB ATPG 5 In ResetB 31 I/O SPD 32 In SPC 22 Out DAC0 20 Out DAC1 24 In ISET Description Data[0] through Data[17] Inputs These pins accept the 18 data inputs from a digital video port of a graphics controller ...

Page 5

... CHRONTEL Pin # Type Symbol 29 Out GCLK 40 Power VDDIO 58 Power DVDD 7,11,30,38 Power AVDD 26 Power AVDD_PLL 17,21 Power AVDD_DAC 9,14 Power VDDQ_MEM 13,34 Power VDD_MEM 57 Power DGND 6,10,27,37 Power AGND 25 Power AGND_PLL 19,23 Power AGND_DAC 8,15 Power GNDQ_MEM 12,35,36 Power GND_MEM 209-0000-092 Rev. 1.0, 03/21/2008 Description Crystal Output For master mode and some situation of the slave mode, a parallel resonance crystal (± ...

Page 6

... CHRONTEL 2.0 Package Dimensions Table of Dimensions No. of Leads 64 ( mm) A Milli- MIN 12 meters MAX Notes: 1. Conforms to JEDEC standard JESD-30 MS-026D. 2. Dimension B: Top Package body size may be smaller than bottom package size by as much as 0.15 mm. 3. Dimension B does not include allowable mold protrusions up to 0.25 mm per side. ...

Page 7

... Part Number Package Type CH7028B-TF 64LQFP, Lead-free 64LQFP, Lead-free, CH7028B-TF-TR Tape & Reel. 2210 O’Toole Avenue, Suite 100, ©2008 Chrontel, Inc. All Rights Reserved. Printed in the U.S.A. 209-0000-092 Rev. 1.0, ...

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