MAX9526_10 Datasheet, PDF (1/38 Pages) Maxim Integrated Products – Low-Power, High-Performance NTSC/PAL Video Decoder

19-4535; Rev 2; 2/10
Low-Power, High-Performance
NTSC/PAL Video Decoder
General Description
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).
Applications
Automotive Entertainment Systems
Collision Avoidance Systems
Security Surveillance/CCTV Systems
Televisions
Features
o Supports All NTSC and PAL Standards
NTSC M, NTSC J, NTSC 4.43,
PAL B/G/H/I/D, PAL M, PAL N, PAL 60
o Easy to Configure and Operate with Only
16 User-Programmable Registers
o Automatic Configuration and Standard Select
o 10-Bit 4x Oversampling (54Msps) ADC with True
10-Bit Digital Processing
o Flexible Output Formatting
10-Bit Parallel ITU-R BT.656 Output with
Embedded TRS
8-Bit Parallel ITU-R BT.656 Output with Separate
HS and VS
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
+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
Ordering Information
PART
TEMP RANGE PIN-PACKAGE
MAX9526AEI+
-40°C to +125°C 28 QSOP
MAX9526AEI/V+ -40°C to +125°C 28 QSOP
MAX9526ATJ+
-40°C to +125°C 32 TQFN-EP*
MAX9526ATJ/V+ -40°C to +125°C 32 TQFN-EP*
+Denotes lead(Pb)-free/RoHS-compliant package.
/V denotes an automotive qualified part.
*EP = Exposed pad.
Functional Diagram
VIN1
VIN2
XTAL/OSC
XTAL2
SDA
SCL
DEVADDR
IRQ
ANALOG
FRONT-END
10 _DIGITAL 10
DECODER
10
OUTPUT
PROCESSING
D9–D0
LLC
SYNC
PROCESSING,
CLOCK
GENERATION,
AND PLL
I²C INTERFACE
AND REGISTERS
NONSTD
VIDEO
CLOCK
MAX9526
________________________________________________________________ Maxim Integrated Products 1
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.