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CH7530A
Chrontel
Brief Datasheet
CH7530A DP++ to HDMI/DVI Level Shifter
FEATURES
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GENERAL DESCRIPTIONS
Chrontel’s CH7530A is a low-cost, low-power semiconductor device that translates the DisplayPort dual mode
HDMI output is compliant with HDMI specification signal to HDMI/DVI signal. This innovative device, which
version 1.4b and DVI specification version 1.0
integrates programmable equalizer, high speed TMDS level
HDMI output supports up to 300 MHz TMDS
shifter and IIC to AUX translator, is specially designed to
clock for video transport with resolution up to
target the DP++ to HDMI/DVI adaptor device, docking
[email protected] or [email protected]
station and PC market segments.
IIC-over-AUX transaction supported
DDC buffer and related control register integrated
The CH7530A is compliant with the DisplayPort dual
HDMI Identifier supported
mode standard specification version 1.1. With
Single 3.3V power supply
sophisticated equalizer and high-speed TMDS level shifter
5V HDMI power supply output supported with over integrated, the device’s TMDS signal output is compliant
50mA current output capability
with HDMI specification version 1.4b and DVI
Programmable equalizer
specification version 1.0, and supports video resolution up
Programmable Pre-Emphasis on output driver
to [email protected] or [email protected] for 3D
supported
applications.
CEC isolation switch supported
Low power architecture
The CH7530A also integrates the HDMI identifier, IIC
Anti-Back Drive design on sink-side pins
over AUX translator and the related DDC control
RoHS compliant and Halogen free package
registers, which enables the programmable HDMI or DVI
Crystal free
output and supports both DDC and AUX signaling on the
Offered in 40-Pin QFN Package (5 x 5 mm)
upstream DisplayPort connector. With step-up regulator
integrated, CH7530A supports 5V power supply output
for HDMI/DVI configuration.
Compliant with DisplayPort Dual mode
Specification version 1.1
Application
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
DP++ to HDMI/DVI type 2 Cable Adaptor
Docking Station
Notebook/Ultrabook/AIO
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CHRONTEL
CH7530A
HDMI /
DVI
DP ++
Programmable
Equalizer
High-speed
Level Shifter
PreEmphasis
HDMI Identifier & DDC Control Registers
DDC
AUX/DDC
IIC over AUX Translation
DDC Buffer
HPD
HPD_IN
CEC
CEC
Gate Circuit
3.3V
5V
3.3V to 5V Regulator
Figure 1: CH7530A Functional Block Diagram
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CHRONTEL
CH7530A
1.0 PIN-OUT
Package Diagram
CEC_SC
CEC_SK
AVCC
PCN
PCP
V5OUT
EQ
PREEM
CFG
DDC_MOD
40
39
38
37
36
35
34
33
32
31
VCC12
1
30
TDC2+
D0P
2
29
TDC2-
D0N
3
28
AVCC
D1P
4
27
TDC1+
D1N
5
26
TDC1-
AVCC
6
25
TDC0+
D2P
7
24
TDC0-
D2N
8
23
AVCC
D3P
9
22
TLC+
D3N
10
21
TLC-
CHRONTEL
CH7530A
12
13
14
15
16
17
18
19
20
AUXP
AUXN
DDC_SDA
DDC_SCL
DDC_EN
VSWING
AVCC
VCC12
HPD_OUT
HPD_IN
QFN40
11
1.1
Figure 2: CH7530A 40-Pin QFN Pin Out
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CHRONTEL
1.2
CH7530A
Pin Description
Table 1: CH7530A QFN 40-Pin Descriptions
4
Pin #
2,3,4,5,
7,8,9,10
Type
In
Symbol
D[3:0]P/N
11
Out
HPD_OUT
Description
DP Dual Mode Main Link Differential Line Input
These pins accept four AC-coupled differential pairs signals from the
DisplayPort transmitter.
DP Dual Mode Receiver Hot Plug Output
12
In
HPD_IN
HDMI/DVI Transmitter Hot Plug Input
13,14
In/Out
AUXP,
AUXN
15
In/Out
DDC_SDA
16
Out
DDC_SCL
17
In
DDC_EN
18
Out
VSWING
21,22
Out
TLC-,TLC+
24,25
Out
TDC0-,TDC0+
26,27
Out
TDC1-,TDC1+
29,30
Out
TDC2-,TDC2+
31
In
DDC_MOD
32
In
CFG
33
In
PREEM
34
In
EQ
35
Out
V5OUT
36
In
PCP
AUX Channel Differential Input/Output
These two pins are DisplayPort AUX Channel control, which supports
a half-duplex, bi-directional AC-coupled differential signal.
Serial Port Data to HDMI/DVI Receiver
The pin should be connected to data signal of HDMI DDC. This pin
requires a pull-up 10 kΩ resistor to the desired voltage level
Serial Port Clock Output to HDMI/DVI Receiver
The pin should be connected to clock signal of HDMI DDC. This pin
requires a pull-up 10 kΩ resistor to the desired voltage level
Enables the DDC buffer and level shifter
When DDC_EN = LOW, buffer/level shifter is disabled.
When DDC_EN = HIGH, buffer and level shifter are enabled
To prevent the back drive from sink via DDC channel.
This pin requires a pull-up kΩ resistor to AVCC
HDMI/DVI Swing Control
This pin sets the swing level of the HDMI/DVI outputs. A 10kΩ with
1% tolerance resistor should be connected between this pin and TGND
using short and wide traces.
HDMI/DVI Clock Outputs
These pins provide the differential clock output for the HDMI/DVI .
HDMI/DVI Data Channel 0 Outputs
These pins provide the DVI differential outputs for data channel 0
HDMI/DVI Data Channel 1 Outputs
These pins provide the DVI differential outputs for data channel 1
HDMI/DVI Data Channel 2 Outputs
These pins provide the DVI differential outputs for data channel 2
DDC buffer selection
This pin can be board-strapped to one of four decode values: short to
AVCC, 10kΩ resistor to AVCC, open-circuit, 10kΩ resistor to
AVSS[1]
HDMI/DVI selection
HIGH for HDMI, LOW for DVI
Pre-emphasis Setting
This pin can be board-strapped to one of five decode values: short to
AVSS, 10kΩ resistor to AVSS, open-circuit, 10kΩ resistor to AVCC,
short to AVCC[2]
Programmable Equalizer Setting
Equalizer setting. This pin can be board-strapped to one of five decode
values: short to AVSS, 10kΩ resistor to AVSS, open-circuit, 10kΩ
resistor to AVCC, short to AVCC[3]
5V Power Supply Output
5V regulated output from the integrated voltage regulator
Positive terminal for the Power regulator external capacitor
37
In
PCN
Negative terminal for the Power regulator external capacitor
39
In/Out
CEC_SK
CEC Pin to HDMI Sink
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CHRONTEL
CH7530A
40
In/Out
CEC_SC
CEC Pin to DP dual mode Source
1,20
Power
VCC12
Analog Power Supply (1.2V) with internal LDO
6,19,23,
28,38
Therma
l Pad
Power
AVCC
Analog Power Supply (3.3V)
Power
AVSS
Analog Ground
Notes:
1. This pin provides DDC buffer configuration, the details are as follow:
Table 2: Pin DDC_MOD Configuration
Short to AVCC
10k to AVCC
OPEN CIRCUIT
Options
10k or short to AVSS
DDC buffer
Active buffer
Passive buffer
Active buffer
Passive buffer
PD_LDO
1
1
0
0
2. Table 3: Driver settings
Short to AVCC
Options
Driver Settings
0dB
3. Table 4: Equalizer settings
Short to AVCC
Options
EQ Settings
1dB
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Rev 0.4
10k to AVCC
OPEN CIRCUIT
10k to AVSS
Short to AVSS
3dB
5dB
7dB
10dB
10k to AVCC
OPEN CIRCUIT
10k to AVSS
Short to AVSS
4dB
7dB
10dB
13dB
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CHRONTEL
CH7530A
2.0 PACKAGE DIMENSIONS
Figure 3: 40 Pin QFN Package
Table 5: Table of Dimensions
No. of Leads
40 (5 X 5 mm)
MIN
Millimeters
MAX
A
4.90
5.10
B
3.20
3.40
C
3.20
3.40
D
0.4
SYMBOL
E
F
0.15
0.35
0.25
0.45
G
0.80
0.90
H
0
0.05
I
0.203
REF
Notes:
1. Conforms to JEDEC standard JESD-30 MO-220.
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CHRONTEL
CH7530A
3.0 REVISION HISTORY
Rev. #
0.1
0.2
Date
02/18/2014
10/28/2014
0.3
0.4
03/18/2015
03/30/2016
209-1000-126
Rev 0.4
Section
All
Feature List
1.1, 1.2
2.0
1.2
Feature List
2016-4-1
Description
Initial Draft for CH7530A RevA
Update the feature list
Update the pin out and the description information
Update the package dimensions
Update the pin out description
Update the feature list
7
CHRONTEL
CH7530A
Disclaimer
This document provides technical information for the user. Chrontel reserves the right to make changes at any
time without notice to improve and supply the best possible product and is not responsible and does not
assume any liability for misapplication or use outside the limits specified in this document. We provide no
warranty for the use of our products and assume no liability for errors contained in this document. The
customer should make sure that they have the most recent data sheet version. Customers should take
appropriate action to ensure their use of the products does not infringe upon any patents. Chrontel, Inc.
respects valid patent rights of third parties and does not infringe upon or assist others to infringe upon such
rights.
Chrontel PRODUCTS ARE NOT AUTHORIZED FOR AND SHOULD NOT BE USED WITHIN LIFE
SUPPORT SYSTEMS OR NUCLEAR FACILITY APPLICATIONS WITHOUT THE SPECIFIC WRITTEN
CONSENT OF Chrontel. Life support systems are those intended to support or sustain life and whose failure
to perform when used as directed can reasonably expect to result in personal injury or death.
ORDERING INFORMATION
Part Number
Package Type
Operating Temperature Range
CH7530A-BF
40 QFN, Lead-free
Commercial : 0 to 70C
Minimum Order Quantity
490/Tray
Chrontel
Chrontel International Limited
129 Front Street, 5th floor,
Hamilton, Bermuda HM12
www.chrontel.com
E-mail: [email protected]
2016 Chrontel - All Rights Reserved.
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