MAX9526AEI+ Maxim Integrated Products, MAX9526AEI+ Datasheet

IC VID DECODER NTSC/PAL 28-QSOP

MAX9526AEI+

Manufacturer Part Number
MAX9526AEI+
Description
IC VID DECODER NTSC/PAL 28-QSOP
Manufacturer
Maxim Integrated Products
Type
Video Decoderr
Datasheet

Specifications of MAX9526AEI+

Applications
Automotive Systems, Players, TV
Voltage - Supply, Analog
1.8V
Voltage - Supply, Digital
1.8V
Mounting Type
Surface Mount
Package / Case
28-QSOP
Operating Supply Voltage
1.8 V
Maximum Operating Temperature
+ 125 C
Bandwidth
180 Hz to 2 KHz
Maximum Power Dissipation
1009 mW
Minimum Operating Temperature
- 40 C
Mounting Style
SMD/SMT
Snr
58.8 dB
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
The MAX9526 is a low-power video decoder that con-
verts NTSC or PAL composite video signals to 8-bit or
10-bit YCbCr component video compliant with the ITU-
R BT.656 standard. The device powers up in fully oper-
ational mode and automatically configures itself to
decode the detected input standard. The MAX9526
typically consumes 200mW of power in normal opera-
tion and typically less than 100µW in shutdown mode.
An internal 10-bit, 54MHz analog-to-digital converter
(ADC) samples the input with four times oversampling.
The MAX9526 features a DC restoration circuit with off-
set correction and automatic gain control to accurately
optimize the full-scale range of the ADC.
An integrated analog anti-aliasing filter eliminates the
need for external filtering. The MAX9526 includes a 2:1
input multiplexer with automatic signal selection based
on activity at the inputs.
An internal line-locked phase-locked loop (PLL) gener-
ates the sample clock and the line-locked clock (LLC)
output to provide an ITU-compliant output. Alternatively,
the PLL can be configured to provide a sample clock
and output clock at 2x and 1x the frequency of the
crystal oscillator, respectively.
The MAX9526 provides a multiline adaptive comb filter to
reduce cross-chrominance and cross-luminance artifacts.
A single 1.8V supply is used for both the digital and
analog supplies. The digital outputs operate from a
separate +1.7V to +3.45V supply to allow direct con-
nection to a wide range of digital processors. The
MAX9526 operates over the -40°C to +125°C automo-
tive temperature range and is available in both a
28-pin QSOP and a 32-pin TQFN (5mm x 6mm).
19-4535; Rev 3; 2/11
For pricing, delivery, and ordering information, please contact Maxim Direct at 1-888-629-4642,
or visit Maxim’s website at www.maxim-ic.com.
Automotive Entertainment Systems
Collision Avoidance Systems
Security Surveillance/CCTV Systems
Televisions
________________________________________________________________ Maxim Integrated Products
General Description
Applications
Low-Power, High-Performance
NTSC/PAL Video Decoder
o Supports All NTSC and PAL Standards
o Easy to Configure and Operate with Only
o Automatic Configuration and Standard Select
o 10-Bit 4x Oversampling (54Msps) ADC with True
o Flexible Output Formatting
o +1.8V Digital and Analog Supply Voltage
o +1.7V to +3.45V Digital I/O Supply Voltage
o Full Automotive Temperature Range (-40°C to
o Low-Power Modes
o 2-to-1 Video Input Mux with AGC
+ Denotes lead(Pb)-free/RoHS-compliant package.
/V denotes an automotive qualified part.
* EP = Exposed pad.
XTAL/OSC
MAX9526AEI+
MAX9526AEI/V+
MAX9526ATJ+
MAX9526ATJ/V+
DEVADDR
16 User-Programmable Registers
10-Bit Digital Processing
+125°C)
XTAL2
V
V
IN1
IN2
SDA
NTSC M, NTSC J, NTSC 4.43,
PAL B/G/H/I/D, PAL M, PAL N, PAL 60
10-Bit Parallel ITU-R BT.656 Output with
8-Bit Parallel ITU-R BT.656 Output with Separate
Shutdown (< 100µW typ)
Sleep Mode with Continuous Activity Detection
SCL
IRQ
Embedded TRS
HS and VS
(< 5mW typ)
PART
AND REGISTERS
PROCESSING,
I
GENERATION,
2
C INTERFACE
AND PLL
CLOCK
SYNC
FRONT-END
ANALOG
-40°C to +125°C
-40°C to +125°C
-40°C to +125°C
-40°C to +125°C
TEMP RANGE
Ordering Information
Functional Diagram
NONSTD
CLOCK
VIDEO
10
DECODER
DIGITAL
MAX9526
10
PIN-PACKAGE
28 QSOP
28 QSOP
32 TQFN-EP*
32 TQFN-EP*
PROCESSING
OUTPUT
Features
10
D9–D0
LLC
1

Related parts for MAX9526AEI+

MAX9526AEI+ Summary of contents

Page 1

... Full Automotive Temperature Range (-40°C to +125°C) o Low-Power Modes Shutdown (< 100µW typ) Sleep Mode with Continuous Activity Detection (< 5mW typ) o 2-to-1 Video Input Mux with AGC PART MAX9526AEI+ MAX9526AEI/V+ MAX9526ATJ+ MAX9526ATJ/V+ + Denotes lead(Pb)-free/RoHS-compliant package. /V denotes an automotive qualified part Exposed pad. V ...

Page 2

Low-Power, High-Performance NTSC/PAL Video Decoder ABSOLUTE MAXIMUM RATINGS AVDD to AGND .......................................................-0.3V to +2V DVDD to DGND ........................................................-0.3V to +2V DVDDIO to DGND .................................................-0.3V to +3.6V AGND to DGND.....................................................-0.1V to +0.1V D9–D0, LLC to DGND .........................-0.3V to (DVDDIO + 0.3V) ...

Page 3

ELECTRICAL CHARACTERISTICS (continued +1.8V +3.3V, V AVDD DVDD DVDDIO T = +25°C.) (Note 1) A PARAMETER SYMBOL Sync Slice Comparator Level DC Restore Current DAC Full- Scale Range (Source and Sink) (Note 3) D ...

Page 4

Low-Power, High-Performance NTSC/PAL Video Decoder ELECTRICAL CHARACTERISTICS (continued +1.8V +3.3V, V AVDD DVDD DVDDIO T = +25°C.) (Note 1) A PARAMETER SYMBOL D i ffer enti al Gai Resp ...

Page 5

ELECTRICAL CHARACTERISTICS (continued +1.8V +3.3V, V AVDD DVDD DVDDIO T = +25°C.) (Note 1) A PARAMETER SYMBOL CRYSTAL OSCILLATOR Fr eq uency X TAL/ TAL2 Inp aci tance ...

Page 6

Low-Power, High-Performance NTSC/PAL Video Decoder ELECTRICAL CHARACTERISTICS (continued +1.8V +3.3V, V AVDD DVDD DVDDIO T = +25°C.) (Note 1) A PARAMETER SYMBOL Output High Voltage Data to LLC Rising Edge Hold Time Data to ...

Page 7

V = +1.8V 3.3V, V AVDD DVDD DVDDIO T = +25°C.) A FULL-SCALE CONVERSION RANGE 800 600 400 200 GAIN CODE (Reg0x0A[3:0]) (DECIMAL) ADC SNR vs. GAIN CODE ...

Page 8

Low-Power, High-Performance NTSC/PAL Video Decoder ( +1.8V 3.3V, V AVDD DVDD DVDDIO T = +25°C.) A DECODED VIDEO OUTPUT 100% COLOR BARS (Cb WAVEFORM) 1000 800 600 400 200 TIME ...

Page 9

PIN NAME QSOP TQFN- IN1 REF IN2 4 1 AGND 5 2 AVDD 6 3 XTAL2 7 4 XTAL/OSC DEVADR 10 DVDD 11, ...

Page 10

Low-Power, High-Performance NTSC/PAL Video Decoder Detailed Description The MAX9526 is a simple, low-power video decoder that converts all modes of NTSC and PAL composite video signals to 10-bit YCbCr component video com- patible with the ITU-R BT.656 standard. The device ...

Page 11

XTAL/OSC XTAL2 Figure 2. Sync Processing, Clock Generation, and PLL A differential signal path is used to process the analog video signal to minimize the effect of noise coupling reference ( 850mV is internally generated REF ...

Page 12

Low-Power, High-Performance NTSC/PAL Video Decoder The sync processing block extracts the sync information and automatically detects 525 line or 625 line inputs. Clock Generator and PLL The PLL operates in either line-locked clock (LLC) mode or async mode. Selection of ...

Page 13

SYNC-LEVEL FROM 10 CORRECTION ANALOG AND FRONT-END SYNC EXTRACTION NTSC/PAL SYNC PROCESSOR NONSTD VIDEO AND ANALOG COPY PROTECTION DETECT HORZ, VERT, FRAME NONSTD VIDEO Figure 3. Digital Composite Decoding Functional Diagram standards automatically. See the Standard Select, Shutdown, and Control ...

Page 14

Low-Power, High-Performance NTSC/PAL Video Decoder Table 1. MAX9526 Clock Mode Summary SEL XTAL_DIS _54MHz REGISTER 0x0D REGISTER 0x0E REGISTER 0x0D ...

Page 15

Y IMAGE ENHANCEMENT Cb AND COLOR Cr CORRECTION TIMING INFO Figure 4. Digital Output Processing Table 2. ITU-R BT.656 SAV and EAV Code Sequence CONDITION FIELD V TIME H TIME Even Blank EAV Even Blank SAV Even Active EAV Even ...

Page 16

Low-Power, High-Performance NTSC/PAL Video Decoder CVBS INPUT 1 0.1µF 37.5Ω 37.5Ω CVBS INPUT 2 0.1µF 37.5Ω 37.5Ω CVBS INPUT 3 0.1µF 37.5Ω 37.5Ω CVBS INPUT 4 0.1µF 37.5Ω 37.5Ω SDA SCL 2 ...

Page 17

CVBS INPUT 1 37.5Ω 0.1µF 37.5Ω CVBS INPUT 2 37.5Ω DVDDIO 10kΩ 10kΩ SDA SCL ADDR INTERFACE Figure 8. MAX9526 Typical Application Circuit with Additional Supply Isolation CVBS IN LOOPBACK OUT Figure 9. Loopback ...

Page 18

Low-Power, High-Performance NTSC/PAL Video Decoder Table 3. Recommended Crystal Parameters PARAMETER Frequency Fundamental mode only Maximum Crystal ESR Room temperature Line-locked mode Accuracy Async mode with multiple decoders Applications Information Multiple Decoder Operation Multiple asynchronous video input signals can be ...

Page 19

SDA while SCL is high (Figure 11). A START condition from the master signals the beginning of a transmission to the MAX9526. The master terminates transmission, and frees the bus, by issuing a STOP con- dition. The bus ...

Page 20

Low-Power, High-Performance NTSC/PAL Video Decoder SDA DAT t LOW SCL t HIGH STA t R START CONDITION 2 Figure 10 Serial Interface Timing Diagram S Sr SCL SDA Figure 11. START, STOP, ...

Page 21

ACKNOWLEDGE FROM MAX9526 S SLAVE ADDRESS R/W Figure 13. Writing a Byte of Data to the MAX9526 ACKNOWLEDGE FROM MAX9526 ACKNOWLEDGE FROM MAX9526 S SLAVE ADDRESS 0 A R/W Figure 14. Writing n Bytes of Data to the MAX9526 ACKNOWLEDGE ...

Page 22

Low-Power, High-Performance NTSC/PAL Video Decoder Programming the MAX9526 2 Table 4 shows register map. All static bits should not be programmed to any values other than the default value listed in Table 4. Table 4. Register Map ...

Page 23

Status Register 0 REG B7 B6 0x00 VID1 VID2 Video Input 1 Active (VID1 Active video detected at V IN1 active video detected on V Video Input 2 Active (VID2 Active video detected ...

Page 24

Low-Power, High-Performance NTSC/PAL Video Decoder Interrupt Mask Register 0 REG B7 B6 0x02 IVID1 IVID2 Active Video 1 Interrupt (IVID1 Change in VID1 bit status triggers a hardware interrupt interrupt on VID1 changes (default). See ...

Page 25

Standard Select, Shutdown, and Control Register REG B7 B6 0x04 STDSEL Video Standard Select (STDSEL) Bit B7 (TYPE NTSC J, PAL 60, NTSC 4.43 NTSC M (standard NTSC), PAL M, PAL B/G/H/I/D (standard PAL), PAL Combination ...

Page 26

Low-Power, High-Performance NTSC/PAL Video Decoder Contrast Control Register REG B7 B6 0x05 0x00 = Luma gain is 0. 0x80 = Luma gain is 1 (default). 0xFF = Luma gain is 255/128, or approximately 2. When ACP is detected (register 0x01, ...

Page 27

Video Input Select and Clamp Control Register REG B7 B6 0x09 AUTOSEL INSEL Video Auto-Select (AUTOSEL Automatically selects video input with activity detect. When activity is present on both or neither V V after a reset (POR, register ...

Page 28

Low-Power, High-Performance NTSC/PAL Video Decoder Analog AGC Gain (AGCGAIN) This bit controls the gain of the analog AGC preceding the ADC. This bit only functions when ADAGC = 1. The Table 6. Analog AGC Code and Gain Values TYPICAL FULL-SCALE ...

Page 29

Color Test Signal Register REG B7 B6 0x0C RAWADC 0 ADC-Only Mode (RAWADC D9–D0 are the ADC outputs directly without being processed by video demodulator D9–D0 are 10-bit YCbCr component video (default). With RAWADC = 1, ...

Page 30

Low-Power, High-Performance NTSC/PAL Video Decoder Table 7. Output Test Signal Setup STDSEL REGISTER DESCRIPTION 0x04 B7-5 Default mode, test pattern has last timing standard 0X0 used at output Force test pattern with last timing standard used at 0X0 output Force ...

Page 31

Clock and Output Control Register REG B7 B6 0x0D 0 CLIP ITU-R BT.656 Standard Clipping Level (CLIP Clip ITU output to Y range is between 64–940 and CbCr range is between 64–960 Clip ITU output to ...

Page 32

Low-Power, High-Performance NTSC/PAL Video Decoder LLC D9– Figure 18. Horizontal and Vertical Sync Timing PLL Control Register REG B7 B6 0x0E 0 0 Line-Locked Clock Mode (LLC_MODE Async mode or line-locked ...

Page 33

TOP VIEW N.C. 29 MAX9526 V 30 IN1 V 31 REF V 32 IN2 + TQFN *EP = EXPOSED PAD Chip ...

Page 34

Low-Power, High-Performance NTSC/PAL Video Decoder 0.1µF 37.5Ω CVBS INPUT 1 37.5Ω 37.5Ω CVBS INPUT 2 37.5Ω DVDDIO 10kΩ 10kΩ SDA SCL ADDR INTERFACE 34 ______________________________________________________________________________________ 0.1µF 0.1µF AVDD DVDD DVDDIO 0.1µF V LLC IN1 ...

Page 35

For the latest package outline information and land patterns (footprints www.maxim-ic.com/packages. Note that a “+”, “#”, or “-” in the package code indicates RoHS status only. Package drawings may show a different suffix character, but the drawing per- ...

Page 36

Low-Power, High-Performance NTSC/PAL Video Decoder For the latest package outline information and land patterns (footprints www.maxim-ic.com/packages. Note that a “+”, “#”, or “-” in the package code indicates RoHS status only. Package drawings may show a different suffix ...

Page 37

For the latest package outline information and land patterns (footprints www.maxim-ic.com/packages. Note that a “+”, “#”, or “-” in the package code indicates RoHS status only. Package drawings may show a different suffix character, but the drawing per- ...

Page 38

... Maxim cannot assume responsibility for use of any circuitry other than circuitry entirely embodied in a Maxim product. No circuit patent licenses are implied. Maxim reserves the right to change the circuitry and specifications without notice at any time. 38 ____________________Maxim Integrated Products, 120 San Gabriel Drive, Sunnyvale, CA 94086 408-737-7600 © 2011 Maxim Integrated Products DESCRIPTION Maxim is a registered trademark of Maxim Integrated Products, Inc ...

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